Segmentation fault in nixos-rebuild with flakes

[wahjava]

Describe the bug

The last few lines from the output:

instantiated 'python3.8-urllib3-1.26.3' -> '/nix/store/d3qrq12mrfws3z2y1snrhfhfscc26v8c-python3.8-urllib3-1.26.3.drv'
instantiated 'requests-2.25.1.tar.gz' -> '/nix/store/ylsrhgwaxjfiq6qf7214g3qs4hkrp3bp-requests-2.25.1.tar.gz.drv'
instantiated 'python3.8-requests-2.25.1' -> '/nix/store/mq21c4vz1hznkkvrz976amij82dm3421-python3.8-requests-2.25.1.drv'
instantiated 'snowballstemmer-2.1.0.tar.gz' -> '/nix/store/fzfgjndq9kplz468iq86213wdqii3h2v-snowballstemmer-2.1.0.tar.gz.drv'
instantiated 'python3.8-snowballstemmer-2.1.0' -> '/nix/store/lyibwippjs0j3br837hw2p8cn8zpg3bk-python3.8-snowballstemmer-2.1.0.drv'
instantiated 'sphinxcontrib-applehelp-1.0.2.tar.gz' -> '/nix/store/1ycmay3bvz81k6pi51zg4krfa31hgw4d-sphinxcontrib-applehelp-1.0.2.tar.gz.drv'
instantiated 'python3.8-sphinxcontrib-applehelp-1.0.2' -> '/nix/store/7b7s1mvjbislzwnnc52a3ap2qbkb437b-python3.8-sphinxcontrib-applehelp-1.0.2.drv'
instantiated 'sphinxcontrib-devhelp-1.0.2.tar.gz' -> '/nix/store/8w3fqnarfa1k1ph9anp851s464sj6bqg-sphinxcontrib-devhelp-1.0.2.tar.gz.drv'
instantiated 'python3.8-sphinxcontrib-devhelp-1.0.2' -> '/nix/store/zja1s0bwd7xln545vqk88i9jb57vb300-python3.8-sphinxcontrib-devhelp-1.0.2.drv'
instantiated 'sphinxcontrib-htmlhelp-1.0.3.tar.gz' -> '/nix/store/sg8pwgmf44gqzphls6n8r65zjq5ql908-sphinxcontrib-htmlhelp-1.0.3.tar.gz.drv'
instantiated 'python3.8-sphinxcontrib-htmlhelp-1.0.3' -> '/nix/store/4ninq3b7w02sxzkqg4ndv36pdqijgl6y-python3.8-sphinxcontrib-htmlhelp-1.0.3.drv'
instantiated 'sphinxcontrib-jsmath-1.0.1.tar.gz' -> '/nix/store/244yl767fwh1wqbds01wxhx6yv1sngda-sphinxcontrib-jsmath-1.0.1.tar.gz.drv'
instantiated 'python3.8-sphinxcontrib-jsmath-1.0.1' -> '/nix/store/q17i377zlhw4zksq4661n6dn8bczsf0q-python3.8-sphinxcontrib-jsmath-1.0.1.drv'
instantiated 'sphinxcontrib-qthelp-1.0.3.tar.gz' -> '/nix/store/13vzng8ijy27cz25rygs5zaafv9y3cjd-sphinxcontrib-qthelp-1.0.3.tar.gz.drv'
instantiated 'python3.8-sphinxcontrib-qthelp-1.0.3' -> '/nix/store/94rmkbrpmwn9pgzcd5bjqfgwh6lxf4pn-python3.8-sphinxcontrib-qthelp-1.0.3.drv'
instantiated 'sphinxcontrib-serializinghtml-1.1.4.tar.gz' -> '/nix/store/5ybv5b40d0r8409capi3b12mydx90nav-sphinxcontrib-serializinghtml-1.1.4.tar.gz.drv'
instantiated 'python3.8-sphinxcontrib-serializinghtml-1.1.4' -> '/nix/store/lardqmjjgms4imhkg7d05i8xg1qna671-python3.8-sphinxcontrib-serializinghtml-1.1.4.drv'
instantiated 'Sphinx-3.4.3.tar.gz' -> '/nix/store/sc5fqsy34yzmff7n9a3928l9q13xfixn-Sphinx-3.4.3.tar.gz.drv'
instantiated 'python3.8-sphinx-3.4.3' -> '/nix/store/gpxs3cd6dacy86w2h0hkih82zcgc4kdw-python3.8-sphinx-3.4.3.drv'
evaluating file '/nix/store/dyxka00cvc00x2vfd8kdxib3h45y8hnc-source/pkgs/applications/networking/sync/rsync/default.nix'
evaluating file '/nix/store/dyxka00cvc00x2vfd8kdxib3h45y8hnc-source/pkgs/development/libraries/xxHash/default.nix'
evaluating file '/nix/store/dyxka00cvc00x2vfd8kdxib3h45y8hnc-source/pkgs/applications/networking/sync/rsync/base.nix'
instantiated 'source' -> '/nix/store/pnlycyrf1xvd4a5h7x2bm7iikcr2mkfp-source.drv'
instantiated 'xxHash-0.8.0' -> '/nix/store/ma3xgchyv5g22jamf61ljl0hcdqplqr0-xxHash-0.8.0.drv'
instantiated 'rsync-3.2.3.tar.gz' -> '/nix/store/26r7jg4jl9az1mkp5dcqlv9hylhldxgw-rsync-3.2.3.tar.gz.drv'
instantiated 'rsync-patches-3.2.3.tar.gz' -> '/nix/store/2xii0yjx8l05kiplmjiz8w0knpqvmwgg-rsync-patches-3.2.3.tar.gz.drv'
instantiated 'rsync-3.2.3' -> '/nix/store/1gpc7f7wdwbfxkxmx948ksrpa1l46qac-rsync-3.2.3.drv'
instantiated 'prettytable-0.7.2.tar.bz2' -> '/nix/store/ffglkn18m2sx0z5sl3qrmm0a4gc6rawm-prettytable-0.7.2.tar.bz2.drv'
instantiated 'python3.8-prettytable-0.7.2' -> '/nix/store/3w4dbk506q6vd47q0s5bf0rcbvxfhg0y-python3.8-prettytable-0.7.2.drv'
instantiated 'typeguard-2.10.0.tar.gz' -> '/nix/store/9slr6n4hnwr66kf8ri9zfaz7z6xdfxa3-typeguard-2.10.0.tar.gz.drv'
instantiated 'python3.8-typeguard-2.10.0' -> '/nix/store/k1jjdi4nzqw7sydx8cabg1fsvqdbqfql-python3.8-typeguard-2.10.0.drv'
evaluating file '/nix/store/dyxka00cvc00x2vfd8kdxib3h45y8hnc-source/pkgs/build-support/nix-gitignore/default.nix'
/run/current-system/sw/bin/nixos-rebuild: line 474:  6339 Segmentation fault      (core dumped) nix "${flakeFlags[@]}" build "$flake#$flakeAttr.config.system.build.toplevel" "${extraBuildFlags[@]}" "${lockFlags[@]}" --out-link $outLink

Backtrace:

#0  0x00007f28d75f82c0 in GC_push_all_eager () from /nix/store/wkl16zs8r7mhvc1khyj7ya2hn30x0hxw-boehm-gc-8.0.4/lib/libgc.so.1
#1  0x00007f28d7604f1b in GC_push_all_stacks () from /nix/store/wkl16zs8r7mhvc1khyj7ya2hn30x0hxw-boehm-gc-8.0.4/lib/libgc.so.1
#2  0x00007f28d75fbae7 in GC_mark_some () from /nix/store/wkl16zs8r7mhvc1khyj7ya2hn30x0hxw-boehm-gc-8.0.4/lib/libgc.so.1
#3  0x00007f28d75fd7ed in GC_stopped_mark () from /nix/store/wkl16zs8r7mhvc1khyj7ya2hn30x0hxw-boehm-gc-8.0.4/lib/libgc.so.1
#4  0x00007f28d7601e6a in GC_try_to_collect_inner.part.0 () from /nix/store/wkl16zs8r7mhvc1khyj7ya2hn30x0hxw-boehm-gc-8.0.4/lib/libgc.so.1
#5  0x00007f28d760228f in GC_collect_or_expand () from /nix/store/wkl16zs8r7mhvc1khyj7ya2hn30x0hxw-boehm-gc-8.0.4/lib/libgc.so.1
#6  0x00007f28d7602518 in GC_allocobj () from /nix/store/wkl16zs8r7mhvc1khyj7ya2hn30x0hxw-boehm-gc-8.0.4/lib/libgc.so.1
#7  0x00007f28d76028af in GC_generic_malloc_inner () from /nix/store/wkl16zs8r7mhvc1khyj7ya2hn30x0hxw-boehm-gc-8.0.4/lib/libgc.so.1
#8  0x00007f28d7607a24 in GC_generic_malloc_many () from /nix/store/wkl16zs8r7mhvc1khyj7ya2hn30x0hxw-boehm-gc-8.0.4/lib/libgc.so.1
#9  0x00007f28d7607c92 in GC_malloc_kind () from /nix/store/wkl16zs8r7mhvc1khyj7ya2hn30x0hxw-boehm-gc-8.0.4/lib/libgc.so.1
#10 0x00007f28d79232c6 in nix::allocBytes (n=24) at src/libexpr/eval-inline.hh:90
#11 nix::EvalState::allocValue (this=this@entry=0x170edf0) at src/libexpr/eval.cc:764
#12 0x00007f28d79cc671 in nix::prim_split (state=..., pos=..., args=<optimized out>, v=...) at src/libexpr/primops.cc:3238
#13 0x00007f28d7927c85 in nix::EvalState::callPrimOp (this=this@entry=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1230
#14 0x00007f28d792d6a3 in nix::EvalState::callFunction (this=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1245
#15 0x00007f28d792d84d in nix::ExprApp::eval (this=0x15fc0cc0, state=..., env=..., v=...) at src/libexpr/eval.cc:1200
#16 0x00007f28d79bcfbe in nix::EvalState::forceValue (pos=..., v=..., this=0x170edf0) at src/libexpr/eval-inline.hh:41
#17 nix::EvalState::forceList (pos=..., v=..., this=0x170edf0) at src/libexpr/eval-inline.hh:80
#18 nix::prim_filter (state=..., pos=..., args=0x7f289136b7c0, v=...) at src/libexpr/primops.cc:2469
#19 0x00007f28d7927c85 in nix::EvalState::callPrimOp (this=this@entry=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1230
#20 0x00007f28d792d6a3 in nix::EvalState::callFunction (this=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1245
#21 0x00007f28d792d84d in nix::ExprApp::eval (this=0x15fc0d00, state=..., env=..., v=...) at src/libexpr/eval.cc:1200
#22 0x00007f28d79bc2d6 in nix::EvalState::forceValue (pos=..., v=..., this=0x170edf0) at src/libexpr/eval-inline.hh:41
#23 nix::EvalState::forceList (pos=..., v=..., this=0x170edf0) at src/libexpr/eval-inline.hh:80
#24 nix::prim_map (state=..., pos=..., args=0x7f289136b9d0, v=...) at src/libexpr/primops.cc:2438
#25 0x00007f28d7927c85 in nix::EvalState::callPrimOp (this=this@entry=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1230
#26 0x00007f28d792d6a3 in nix::EvalState::callFunction (this=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1245
#27 0x00007f28d792d84d in nix::ExprApp::eval (this=0x15fc0d40, state=..., env=..., v=...) at src/libexpr/eval.cc:1200
#28 0x00007f28d792d6c2 in nix::EvalState::callFunction (this=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1332
#29 0x00007f28d792d84d in nix::ExprApp::eval (this=0x15fc10b0, state=..., env=..., v=...) at src/libexpr/eval.cc:1200
#30 0x00007f28d79bc2d6 in nix::EvalState::forceValue (pos=..., v=..., this=0x170edf0) at src/libexpr/eval-inline.hh:41
#31 nix::EvalState::forceList (pos=..., v=..., this=0x170edf0) at src/libexpr/eval-inline.hh:80
#32 nix::prim_map (state=..., pos=..., args=0x7f289136bd10, v=...) at src/libexpr/primops.cc:2438
#33 0x00007f28d7927c85 in nix::EvalState::callPrimOp (this=this@entry=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1230
#34 0x00007f28d792d6a3 in nix::EvalState::callFunction (this=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1245
#35 0x00007f28d792d84d in nix::ExprApp::eval (this=0x15faa500, state=..., env=..., v=...) at src/libexpr/eval.cc:1200
#36 0x00007f28d79bcfbe in nix::EvalState::forceValue (pos=..., v=..., this=0x170edf0) at src/libexpr/eval-inline.hh:41
#37 nix::EvalState::forceList (pos=..., v=..., this=0x170edf0) at src/libexpr/eval-inline.hh:80
#38 nix::prim_filter (state=..., pos=..., args=0x7f289136bf60, v=...) at src/libexpr/primops.cc:2469
#39 0x00007f28d7927c85 in nix::EvalState::callPrimOp (this=this@entry=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1230
#40 0x00007f28d792d6a3 in nix::EvalState::callFunction (this=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1245
#41 0x00007f28d792d84d in nix::ExprApp::eval (this=0x15fa9960, state=..., env=..., v=...) at src/libexpr/eval.cc:1200
#42 0x00007f28d792e4f1 in nix::ExprOpConcatLists::eval (this=0x15fa99a0, state=..., env=..., v=...) at src/libexpr/eval.cc:1505
#43 0x00007f28d79bbd84 in nix::EvalState::forceValue (pos=..., v=..., this=<optimized out>) at src/libexpr/eval-inline.hh:41
#44 nix::EvalState::forceList (pos=..., v=..., this=<optimized out>) at src/libexpr/eval-inline.hh:80
#45 nix::prim_length (state=..., pos=..., args=0x7f289136c200, v=...) at src/libexpr/primops.cc:2545
#46 0x00007f28d7927c85 in nix::EvalState::callPrimOp (this=this@entry=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1230
#47 0x00007f28d792d6a3 in nix::EvalState::callFunction (this=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1245
#48 0x00007f28d792d84d in nix::ExprApp::eval (this=0x15faa090, state=..., env=..., v=...) at src/libexpr/eval.cc:1200
#49 0x00007f28d79bd815 in nix::EvalState::forceValue (pos=..., v=..., this=0x170edf0) at src/libexpr/eval-inline.hh:41
#50 nix::prim_sub (state=..., pos=..., args=0x7f289136c410, v=...) at src/libexpr/primops.cc:2856
#51 0x00007f28d7927c85 in nix::EvalState::callPrimOp (this=this@entry=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1230
#52 0x00007f28d792d6a3 in nix::EvalState::callFunction (this=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1245
#53 0x00007f28d792d84d in nix::ExprApp::eval (this=0x15fae990, state=..., env=..., v=...) at src/libexpr/eval.cc:1200
#54 0x00007f28d792e5b0 in nix::EvalState::forceValue (pos=..., v=..., this=this@entry=0x15fa6868) at src/libexpr/eval-inline.hh:41
#55 nix::EvalState::forceInt (this=this@entry=0x170edf0, v=..., pos=...) at src/libexpr/eval.cc:1637
#56 0x00007f28d79be712 in nix::prim_elemAt (state=..., pos=..., args=0x7f289136c640, v=...) at src/libexpr/primops.cc:2372
#57 0x00007f28d7927c85 in nix::EvalState::callPrimOp (this=this@entry=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1230
#58 0x00007f28d792d6a3 in nix::EvalState::callFunction (this=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1245
#59 0x00007f28d792d84d in nix::ExprApp::eval (this=0x15fa6860, state=..., env=..., v=...) at src/libexpr/eval.cc:1200
#60 0x00007f28d792d6c2 in nix::EvalState::callFunction (this=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1332
#61 0x00007f28d792d84d in nix::ExprApp::eval (this=0x15fa99e0, state=..., env=..., v=...) at src/libexpr/eval.cc:1200
#62 0x00007f28d79bbd84 in nix::EvalState::forceValue (pos=..., v=..., this=<optimized out>) at src/libexpr/eval-inline.hh:41
#63 nix::EvalState::forceList (pos=..., v=..., this=<optimized out>) at src/libexpr/eval-inline.hh:80
#64 nix::prim_length (state=..., pos=..., args=0x7f289136c980, v=...) at src/libexpr/primops.cc:2545
#65 0x00007f28d7927c85 in nix::EvalState::callPrimOp (this=this@entry=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1230
#66 0x00007f28d792d6a3 in nix::EvalState::callFunction (this=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1245
#67 0x00007f28d792d84d in nix::ExprApp::eval (this=0x15faa090, state=..., env=..., v=...) at src/libexpr/eval.cc:1200
#68 0x00007f28d79bd815 in nix::EvalState::forceValue (pos=..., v=..., this=0x170edf0) at src/libexpr/eval-inline.hh:41
#69 nix::prim_sub (state=..., pos=..., args=0x7f289136cb90, v=...) at src/libexpr/primops.cc:2856
#70 0x00007f28d7927c85 in nix::EvalState::callPrimOp (this=this@entry=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1230
#71 0x00007f28d792d6a3 in nix::EvalState::callFunction (this=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1245
#72 0x00007f28d792d84d in nix::ExprApp::eval (this=0x15fae990, state=..., env=..., v=...) at src/libexpr/eval.cc:1200
#73 0x00007f28d792e5b0 in nix::EvalState::forceValue (pos=..., v=..., this=this@entry=0x15fa6868) at src/libexpr/eval-inline.hh:41
#74 nix::EvalState::forceInt (this=this@entry=0x170edf0, v=..., pos=...) at src/libexpr/eval.cc:1637
#75 0x00007f28d79be712 in nix::prim_elemAt (state=..., pos=..., args=0x7f289136cdc0, v=...) at src/libexpr/primops.cc:2372
#76 0x00007f28d7927c85 in nix::EvalState::callPrimOp (this=this@entry=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1230
#77 0x00007f28d792d6a3 in nix::EvalState::callFunction (this=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1245
#78 0x00007f28d792d84d in nix::ExprApp::eval (this=0x15fa6860, state=..., env=..., v=...) at src/libexpr/eval.cc:1200
#79 0x00007f28d792d6c2 in nix::EvalState::callFunction (this=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1332
#80 0x00007f28d792d84d in nix::ExprApp::eval (this=0x15fa9a20, state=..., env=..., v=...) at src/libexpr/eval.cc:1200
#81 0x00007f28d792d6c2 in nix::EvalState::callFunction (this=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1332
#82 0x00007f28d792d84d in nix::ExprApp::eval (this=0x15fc2580, state=..., env=..., v=...) at src/libexpr/eval.cc:1200
#83 0x00007f28d7930a45 in nix::EvalState::evalBool (pos=..., e=<optimized out>, env=..., this=0x170edf0) at src/libexpr/eval.cc:940
#84 nix::ExprOpAnd::eval (this=0x15fc2760, state=..., env=..., v=...) at src/libexpr/eval.cc:1450
#85 0x00007f28d792d6c2 in nix::EvalState::callFunction (this=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1332
#86 0x00007f28d792d84d in nix::ExprApp::eval (this=0x15f827a0, state=..., env=..., v=...) at src/libexpr/eval.cc:1200
#87 0x00007f28d7930ab8 in nix::EvalState::evalBool (pos=..., e=<optimized out>, env=..., this=0x170edf0) at src/libexpr/eval.cc:940
#88 nix::ExprOpAnd::eval (this=0x7f289136d3d0, state=..., env=..., v=...) at src/libexpr/eval.cc:1450
#89 0x00007f28d792d6c2 in nix::EvalState::callFunction (this=0x170edf0, fun=..., arg=..., v=..., pos=...) at src/libexpr/eval.cc:1332
#90 0x00007f28d79b05d0 in operator() (__closure=0x15faaba0, path=...) at src/libexpr/primops.cc:1783
#91 0x00007f28d7073069 in std::function<bool (std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>::operator()(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const (__args#0="/nix/store/7xqy8c4a2rlfyqpvw1s8ayzmxmbymwvx-source/ci/check-formatting.sh", this=0x7ffc9a2e7a00) at /nix/store/xrb5qsxpvhpm0irr9ykfqpvj8a6sk4xh-gcc-10.2.0/include/c++/10.2.0/bits/std_function.h:622
#92 nix::dump (path="/nix/store/7xqy8c4a2rlfyqpvw1s8ayzmxmbymwvx-source/ci", sink=..., filter=...) at src/libutil/archive.cc:105
#93 0x00007f28d7073252 in nix::dump (path="/nix/store/7xqy8c4a2rlfyqpvw1s8ayzmxmbymwvx-source", sink=..., filter=...) at src/libutil/archive.cc:107
#94 0x00007f28d70c3a08 in std::function<void (nix::Sink&)>::operator()(nix::Sink&) const (__args#0=..., this=0x15fa1ca8) at /nix/store/xrb5qsxpvhpm0irr9ykfqpvj8a6sk4xh-gcc-10.2.0/include/c++/10.2.0/bits/std_function.h:622
#95 operator() (yield=..., __closure=<synthetic pointer>) at src/libutil/serialise.cc:232
#96 operator() (c=..., this=<optimized out>) at include/boost/coroutine2/detail/pull_control_block_cc.ipp:84
#97 std::__invoke_impl<boost::context::fiber, boost::coroutines2::detail::pull_coroutine<T>::control_block::control_block<nix::VirtualStackAllocator, nix::sinkToSource(std::function<void(nix::Sink&)>, std::function<void()>)::SinkToSource::read(char*, size_t)::<lambda(boost::coroutines2::coroutine<std::__cxx11::basic_string<char> >::push_type&)> >::<lambda(boost::context::fiber&&)>&, boost::context::fiber> (__f=...) at /nix/store/xrb5qsxpvhpm0irr9ykfqpvj8a6sk4xh-gcc-10.2.0/include/c++/10.2.0/bits/invoke.h:60
#98 std::__invoke<boost::coroutines2::detail::pull_coroutine<T>::control_block::control_block<nix::VirtualStackAllocator, nix::sinkToSource(std::function<void(nix::Sink&)>, std::function<void()>)::SinkToSource::read(char*, size_t)::<lambda(boost::coroutines2::coroutine<std::__cxx11::basic_string<char> >::push_type&)> >::<lambda(boost::context::fiber&&)>&, boost::context::fiber> (__fn=...) at /nix/store/xrb5qsxpvhpm0irr9ykfqpvj8a6sk4xh-gcc-10.2.0/include/c++/10.2.0/bits/invoke.h:96
#99 std::invoke<boost::coroutines2::detail::pull_coroutine<T>::control_block::control_block<nix::VirtualStackAllocator, nix::sinkToSource(std::function<void(nix::Sink&)>, std::function<void()>)::SinkToSource::read(char*, size_t)::<lambda(boost::coroutines2::coroutine<std::__cxx11::basic_string<char> >::push_type&)> >::<lambda(boost::context::fiber&&)>&, boost::context::fiber> (__fn=...) at /nix/store/xrb5qsxpvhpm0irr9ykfqpvj8a6sk4xh-gcc-10.2.0/include/c++/10.2.0/functional:89
#100 boost::context::detail::fiber_record<boost::context::fiber, nix::VirtualStackAllocator, boost::coroutines2::detail::pull_coroutine<T>::control_block::control_block<nix::VirtualStackAllocator, nix::sinkToSource(std::function<void(nix::Sink&)>, std::function<void()>)::SinkToSource::read(char*, size_t)::<lambda(boost::coroutines2::coroutine<std::__cxx11::basic_string<char> >::push_type&)> >::<lambda(boost::context::fiber&&)> >::run (fctx=<optimized out>, this=<optimized out>) at include/boost/context/fiber_fcontext.hpp:144
#101 boost::context::detail::fiber_entry<boost::context::detail::fiber_record<boost::context::fiber, nix::VirtualStackAllocator, boost::coroutines2::detail::pull_coroutine<T>::control_block::control_block<nix::VirtualStackAllocator, nix::sinkToSource(std::function<void(nix::Sink&)>, std::function<void()>)::SinkToSource::read(char*, size_t)::<lambda(boost::coroutines2::coroutine<std::__cxx11::basic_string<char> >::push_type&)> >::<lambda(boost::context::fiber&&)> > >(boost::context::detail::transfer_t) (t=...) at include/boost/context/fiber_fcontext.hpp:80
#102 0x00007f28d6a6e1ef in make_fcontext () from /nix/store/89fzkwbi8s67cxd6466c59d4s5xflyiq-nix-2.4pre20210317_8a5203d/lib/libboost_context.so.1.69.0
#103 0x0000000000000000 in ?? ()

Steps To Reproduce

nixos-rebuild switch -vvv --flake '/etc/nixos#'

Expected behavior

A clear and concise description of what you expected to happen.

nix-env --version output

λ nix-env --version                                                                                                                                                                                                                                        ~
nix-env (Nix) 2.4pre20210317_8a5203d

Additional context

flake.nix:

{
  description = "nixOS configuration";

  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
  inputs.nix-pills = {
    url = "github:NixOS/nix-pills/master";
    flake = false;
  };
  inputs.home-manager.url = "github:nix-community/home-manager";
  inputs.emacs-overlay.url = "github:nix-community/emacs-overlay";
  inputs.rust-overlay.url = "github:oxalica/rust-overlay";
  inputs.nixops.url = "github:NixOS/nixops";
  inputs.nur.url = "github:nix-community/NUR";
  outputs = { self, nixpkgs, nix-pills, home-manager, emacs-overlay
    , rust-overlay, nur, nixops }: {
      nixosConfigurations.chateau = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        modules = [
          {
            nixpkgs.config = {
              allowUnfree = true;
              vim.gui = "gtk3";
              pulseaudio = true;
            };
          }
          ./configuration.nix
          home-manager.nixosModules.home-manager
          {
            nixpkgs.overlays = import ./home/overlays.nix { inherit (self) inputs; };
          }
          {
            home-manager.useGlobalPkgs = true;
            home-manager.useUserPackages = true;
            home-manager.users.abbe = import ./home/home.nix;
            home-manager.extraSpecialArgs = {
              inherit (self) inputs;
              system = "x86_64-linux";
            };
          }
        ];
        extraArgs = { inherit (self) inputs; };
      };
    };
}

After removing references to NUR overlay from the configuration, it seems to be working now

[cole-h]

Sounds similar to https://github.com/NixOS/nix/issues/4178. What if you try with GC_DONT_GC=1? (https://github.com/NixOS/nix/issues/4178#issuecomment-738886808)

[wahjava]

Sounds similar to #4178. What if you try with GC_DONT_GC=1? (#4178 (comment))

Yes, no more segfault, if I invoke it with GC_DONT_GC=1.

[MarcoPolo]

Happens to me too. Here's my valgrind trace: https://gist.github.com/MarcoPolo/b8525d7967bd5d7ae053859ef59e76bb

[GTrunSec]

+1 I git the same error output on flake, Also the GC_DONT_GC=1 workaround works for me.

[ggreif]

I have a similar backtrace from a reproducible crash with nix-2.4

$ lldb
(lldb) run nix-build -A moc -A mo-ide -A mo-doc -A js.moc -A js.moc_interpreter
error: invalid target, create a target using the 'target create' command
(lldb) q
GaborGreifsMBP:motoko ggreif$ lldb nix-build -A moc -A mo-ide -A mo-doc -A js.moc -A js.moc_interpreter
warning: ignoring unknown option: -A
warning: ignoring unknown option: -A
warning: ignoring unknown option: -A
warning: ignoring unknown option: -A
warning: ignoring unknown option: -A
(lldb) target create "nix-build"
Current executable set to 'nix-build' (x86_64).
(lldb) settings set -- target.run-args  "moc" "mo-ide" "mo-doc" "js.moc" "js.moc_interpreter"
(lldb) ^D
GaborGreifsMBP:motoko ggreif$ lldb nix-build
(lldb) target create "nix-build"
Current executable set to 'nix-build' (x86_64).
(lldb) settings set -- target.run-args "-A" moc "-A" mo-ide "-A" mo-doc "-A" js.moc "-A" js.moc_interpreter
(lldb) run
warning: (x86_64) /nix/store/c3mvzszvyzakvcp9spnjvsb8m2bpjk7m-nix-2.4/bin/nix(0x0000000100000000) address 0x0000000100000000 maps to more than one section: nix.__TEXT and nix.__TEXT
warning: (x86_64) /nix/store/c3mvzszvyzakvcp9spnjvsb8m2bpjk7m-nix-2.4/bin/nix(0x0000000100000000) address 0x00000001001f4000 maps to more than one section: nix.__DATA and nix.__DATA
Process 49125 launched: '/Users/ggreif/.nix-profile/bin/nix-build' (x86_64)
warning: (x86_64) /Users/ggreif/.nix-profile/bin/nix-build(0x0000000100000000) address 0x0000000100000000 maps to more than one section: nix-build.__TEXT and nix.__TEXT
warning: (x86_64) /Users/ggreif/.nix-profile/bin/nix-build(0x0000000100000000) address 0x00000001001f4000 maps to more than one section: nix-build.__DATA and nix.__DATA
Process 49125 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x12bf01000)
    frame #0: 0x00000001006f2e40 libgc.1.dylib`GC_push_all_stack + 176
libgc.1.dylib`GC_push_all_stack:
->  0x1006f2e40 <+176>: movq   (%rbx), %rdi
    0x1006f2e43 <+179>: cmpq   %r12, %rdi
    0x1006f2e46 <+182>: jb     0x1006f2e52               ; <+194>
    0x1006f2e48 <+184>: cmpq   %r15, %rdi
Target 0: (nix-build) stopped.
(lldb) bt
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x12bf01000)
  * frame #0: 0x00000001006f2e40 libgc.1.dylib`GC_push_all_stack + 176
    frame #1: 0x00000001006f8f8f libgc.1.dylib`GC_push_all_stacks + 255
    frame #2: 0x00000001006e6698 libgc.1.dylib`GC_mark_some + 616
    frame #3: 0x00000001006e59ad libgc.1.dylib`GC_stopped_mark + 285
    frame #4: 0x00000001006e536d libgc.1.dylib`GC_try_to_collect_inner + 413
    frame #5: 0x00000001006e8c95 libgc.1.dylib`GC_collect_or_expand + 197
    frame #6: 0x00000001006e8f1f libgc.1.dylib`GC_allocobj + 255
    frame #7: 0x00000001006df759 libgc.1.dylib`GC_generic_malloc_inner + 329
    frame #8: 0x00000001006ea2b1 libgc.1.dylib`GC_generic_malloc + 81
    frame #9: 0x00000001006ef55b libgc.1.dylib`GC_malloc_kind_global + 219
    frame #10: 0x000000010050108f libnixexpr.dylib`nix::EvalState::allocBindings(unsigned long) + 479
    frame #11: 0x00000001005011a0 libnixexpr.dylib`nix::EvalState::mkAttrs(nix::Value&, unsigned long) + 32
    frame #12: 0x0000000100521a05 libnixexpr.dylib`nix::ExprOpUpdate::eval(nix::EvalState&, nix::Env&, nix::Value&) + 149
    frame #13: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #14: 0x000000010051ea99 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 585
    frame #15: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #16: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #17: 0x000000010051d6b7 libnixexpr.dylib`nix::ExprVar::eval(nix::EvalState&, nix::Env&, nix::Value&) + 55
    frame #18: 0x00000001005219a7 libnixexpr.dylib`nix::ExprOpUpdate::eval(nix::EvalState&, nix::Env&, nix::Value&) + 55
    frame #19: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #20: 0x000000010051d6b7 libnixexpr.dylib`nix::ExprVar::eval(nix::EvalState&, nix::Env&, nix::Value&) + 55
    frame #21: 0x00000001005219a7 libnixexpr.dylib`nix::ExprOpUpdate::eval(nix::EvalState&, nix::Env&, nix::Value&) + 55
    frame #22: 0x000000010051ee0f libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 1471
    frame #23: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #24: 0x00000001005207dc libnixexpr.dylib`nix::ExprIf::eval(nix::EvalState&, nix::Env&, nix::Value&) + 92
    frame #25: 0x000000010051ee0f libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 1471
    frame #26: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #27: 0x000000010052089a libnixexpr.dylib`nix::ExprAssert::eval(nix::EvalState&, nix::Env&, nix::Value&) + 106
    frame #28: 0x000000010051ee0f libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 1471
    frame #29: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #30: 0x00000001005bb995 libnixexpr.dylib`nix::prim_derivationStrict(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 2021
    frame #31: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #32: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #33: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #34: 0x00000001005c6d48 libnixexpr.dylib`nix::EvalState::forceAttrs(nix::Value&, nix::Pos const&) + 120
    frame #35: 0x00000001005c6acc libnixexpr.dylib`nix::prim_getAttr(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 76
    frame #36: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #37: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #38: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #39: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #40: 0x000000010051da2a libnixexpr.dylib`nix::ExprSelect::eval(nix::EvalState&, nix::Env&, nix::Value&) + 842
    frame #41: 0x000000010052089a libnixexpr.dylib`nix::ExprAssert::eval(nix::EvalState&, nix::Env&, nix::Value&) + 106
    frame #42: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #43: 0x0000000100522842 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 66
    frame #44: 0x0000000100522d23 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 1315
    frame #45: 0x000000010052291f libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 287
    frame #46: 0x00000001005bbe37 libnixexpr.dylib`nix::prim_derivationStrict(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 3207
    frame #47: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #48: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #49: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #50: 0x00000001005c6d48 libnixexpr.dylib`nix::EvalState::forceAttrs(nix::Value&, nix::Pos const&) + 120
    frame #51: 0x00000001005c6acc libnixexpr.dylib`nix::prim_getAttr(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 76
    frame #52: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #53: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #54: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #55: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #56: 0x000000010051da2a libnixexpr.dylib`nix::ExprSelect::eval(nix::EvalState&, nix::Env&, nix::Value&) + 842
    frame #57: 0x000000010052089a libnixexpr.dylib`nix::ExprAssert::eval(nix::EvalState&, nix::Env&, nix::Value&) + 106
    frame #58: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #59: 0x0000000100522842 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 66
    frame #60: 0x0000000100522d23 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 1315
    frame #61: 0x000000010052291f libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 287
    frame #62: 0x00000001005bbe37 libnixexpr.dylib`nix::prim_derivationStrict(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 3207
    frame #63: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #64: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #65: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #66: 0x00000001005c6d48 libnixexpr.dylib`nix::EvalState::forceAttrs(nix::Value&, nix::Pos const&) + 120
    frame #67: 0x00000001005c6acc libnixexpr.dylib`nix::prim_getAttr(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 76
    frame #68: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #69: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #70: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #71: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #72: 0x000000010051da2a libnixexpr.dylib`nix::ExprSelect::eval(nix::EvalState&, nix::Env&, nix::Value&) + 842
    frame #73: 0x000000010052089a libnixexpr.dylib`nix::ExprAssert::eval(nix::EvalState&, nix::Env&, nix::Value&) + 106
    frame #74: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #75: 0x0000000100522842 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 66
    frame #76: 0x0000000100522d23 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 1315
    frame #77: 0x000000010052231e libnixexpr.dylib`nix::ExprConcatStrings::eval(nix::EvalState&, nix::Env&, nix::Value&) + 734
    frame #78: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #79: 0x0000000100522842 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 66
    frame #80: 0x000000010052291f libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 287
    frame #81: 0x00000001005bbe37 libnixexpr.dylib`nix::prim_derivationStrict(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 3207
    frame #82: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #83: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #84: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #85: 0x00000001005c6d48 libnixexpr.dylib`nix::EvalState::forceAttrs(nix::Value&, nix::Pos const&) + 120
    frame #86: 0x00000001005c6acc libnixexpr.dylib`nix::prim_getAttr(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 76
    frame #87: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #88: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #89: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #90: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #91: 0x000000010051da2a libnixexpr.dylib`nix::ExprSelect::eval(nix::EvalState&, nix::Env&, nix::Value&) + 842
    frame #92: 0x000000010052089a libnixexpr.dylib`nix::ExprAssert::eval(nix::EvalState&, nix::Env&, nix::Value&) + 106
    frame #93: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #94: 0x0000000100522842 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 66
    frame #95: 0x0000000100522d23 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 1315
    frame #96: 0x000000010052291f libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 287
    frame #97: 0x00000001005bbe37 libnixexpr.dylib`nix::prim_derivationStrict(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 3207
    frame #98: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #99: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #100: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #101: 0x00000001005c6d48 libnixexpr.dylib`nix::EvalState::forceAttrs(nix::Value&, nix::Pos const&) + 120
    frame #102: 0x00000001005c6acc libnixexpr.dylib`nix::prim_getAttr(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 76
    frame #103: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #104: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #105: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #106: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #107: 0x0000000100522842 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 66
    frame #108: 0x0000000100522d23 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 1315
    frame #109: 0x00000001005bbe37 libnixexpr.dylib`nix::prim_derivationStrict(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 3207
    frame #110: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #111: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #112: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #113: 0x00000001005c6d48 libnixexpr.dylib`nix::EvalState::forceAttrs(nix::Value&, nix::Pos const&) + 120
    frame #114: 0x00000001005c6acc libnixexpr.dylib`nix::prim_getAttr(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 76
    frame #115: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #116: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #117: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #118: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #119: 0x000000010051da2a libnixexpr.dylib`nix::ExprSelect::eval(nix::EvalState&, nix::Env&, nix::Value&) + 842
    frame #120: 0x000000010052089a libnixexpr.dylib`nix::ExprAssert::eval(nix::EvalState&, nix::Env&, nix::Value&) + 106
    frame #121: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #122: 0x0000000100522842 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 66
    frame #123: 0x0000000100522d23 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 1315
    frame #124: 0x00000001005bbe37 libnixexpr.dylib`nix::prim_derivationStrict(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 3207
    frame #125: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #126: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #127: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #128: 0x00000001005c6d48 libnixexpr.dylib`nix::EvalState::forceAttrs(nix::Value&, nix::Pos const&) + 120
    frame #129: 0x00000001005c6acc libnixexpr.dylib`nix::prim_getAttr(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 76
    frame #130: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #131: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #132: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #133: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #134: 0x000000010051da2a libnixexpr.dylib`nix::ExprSelect::eval(nix::EvalState&, nix::Env&, nix::Value&) + 842
    frame #135: 0x000000010052089a libnixexpr.dylib`nix::ExprAssert::eval(nix::EvalState&, nix::Env&, nix::Value&) + 106
    frame #136: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #137: 0x0000000100522842 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 66
    frame #138: 0x0000000100522d23 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 1315
    frame #139: 0x00000001005bbe37 libnixexpr.dylib`nix::prim_derivationStrict(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 3207
    frame #140: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #141: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #142: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #143: 0x00000001005c6d48 libnixexpr.dylib`nix::EvalState::forceAttrs(nix::Value&, nix::Pos const&) + 120
    frame #144: 0x00000001005c6acc libnixexpr.dylib`nix::prim_getAttr(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 76
    frame #145: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #146: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #147: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #148: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #149: 0x000000010051da2a libnixexpr.dylib`nix::ExprSelect::eval(nix::EvalState&, nix::Env&, nix::Value&) + 842
    frame #150: 0x000000010052089a libnixexpr.dylib`nix::ExprAssert::eval(nix::EvalState&, nix::Env&, nix::Value&) + 106
    frame #151: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #152: 0x0000000100522842 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 66
    frame #153: 0x0000000100522d23 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 1315
    frame #154: 0x000000010052291f libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 287
    frame #155: 0x00000001005bbe37 libnixexpr.dylib`nix::prim_derivationStrict(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 3207
    frame #156: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #157: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #158: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #159: 0x00000001005c6d48 libnixexpr.dylib`nix::EvalState::forceAttrs(nix::Value&, nix::Pos const&) + 120
    frame #160: 0x00000001005c6acc libnixexpr.dylib`nix::prim_getAttr(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 76
    frame #161: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #162: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #163: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #164: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #165: 0x000000010051da2a libnixexpr.dylib`nix::ExprSelect::eval(nix::EvalState&, nix::Env&, nix::Value&) + 842
    frame #166: 0x000000010052089a libnixexpr.dylib`nix::ExprAssert::eval(nix::EvalState&, nix::Env&, nix::Value&) + 106
    frame #167: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #168: 0x0000000100522842 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 66
    frame #169: 0x0000000100522d23 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 1315
    frame #170: 0x000000010052231e libnixexpr.dylib`nix::ExprConcatStrings::eval(nix::EvalState&, nix::Env&, nix::Value&) + 734
    frame #171: 0x00000001005207dc libnixexpr.dylib`nix::ExprIf::eval(nix::EvalState&, nix::Env&, nix::Value&) + 92
    frame #172: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #173: 0x0000000100522842 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 66
    frame #174: 0x000000010052291f libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 287
    frame #175: 0x00000001005bbe37 libnixexpr.dylib`nix::prim_derivationStrict(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 3207
    frame #176: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #177: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #178: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #179: 0x00000001005c6d48 libnixexpr.dylib`nix::EvalState::forceAttrs(nix::Value&, nix::Pos const&) + 120
    frame #180: 0x00000001005c6acc libnixexpr.dylib`nix::prim_getAttr(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 76
    frame #181: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #182: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #183: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #184: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #185: 0x000000010051da2a libnixexpr.dylib`nix::ExprSelect::eval(nix::EvalState&, nix::Env&, nix::Value&) + 842
    frame #186: 0x000000010052089a libnixexpr.dylib`nix::ExprAssert::eval(nix::EvalState&, nix::Env&, nix::Value&) + 106
    frame #187: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #188: 0x0000000100522842 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 66
    frame #189: 0x0000000100522d23 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 1315
    frame #190: 0x000000010052291f libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 287
    frame #191: 0x00000001005bbe37 libnixexpr.dylib`nix::prim_derivationStrict(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 3207
    frame #192: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #193: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #194: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #195: 0x00000001005c6d48 libnixexpr.dylib`nix::EvalState::forceAttrs(nix::Value&, nix::Pos const&) + 120
    frame #196: 0x00000001005c6acc libnixexpr.dylib`nix::prim_getAttr(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 76
    frame #197: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #198: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #199: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #200: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #201: 0x000000010051da2a libnixexpr.dylib`nix::ExprSelect::eval(nix::EvalState&, nix::Env&, nix::Value&) + 842
    frame #202: 0x000000010052089a libnixexpr.dylib`nix::ExprAssert::eval(nix::EvalState&, nix::Env&, nix::Value&) + 106
    frame #203: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #204: 0x0000000100522842 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 66
    frame #205: 0x0000000100522d23 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 1315
    frame #206: 0x000000010052231e libnixexpr.dylib`nix::ExprConcatStrings::eval(nix::EvalState&, nix::Env&, nix::Value&) + 734
    frame #207: 0x00000001005bb995 libnixexpr.dylib`nix::prim_derivationStrict(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 2021
    frame #208: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #209: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #210: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #211: 0x00000001005c6d48 libnixexpr.dylib`nix::EvalState::forceAttrs(nix::Value&, nix::Pos const&) + 120
    frame #212: 0x00000001005c6acc libnixexpr.dylib`nix::prim_getAttr(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 76
    frame #213: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #214: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #215: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #216: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #217: 0x000000010051da2a libnixexpr.dylib`nix::ExprSelect::eval(nix::EvalState&, nix::Env&, nix::Value&) + 842
    frame #218: 0x000000010052089a libnixexpr.dylib`nix::ExprAssert::eval(nix::EvalState&, nix::Env&, nix::Value&) + 106
    frame #219: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #220: 0x0000000100522842 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 66
    frame #221: 0x0000000100522d23 libnixexpr.dylib`nix::EvalState::coerceToString(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, bool, bool, bool) + 1315
    frame #222: 0x0000000100525948 libnixexpr.dylib`nix::EvalState::coerceToPath(nix::Pos const&, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&) + 40
    frame #223: 0x00000001005c1b9b libnixexpr.dylib`nix::prim_readFile(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 107
    frame #224: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #225: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #226: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #227: 0x000000010051cc85 libnixexpr.dylib`nix::EvalState::forceValue(nix::Value&, nix::Pos const&) + 117
    frame #228: 0x00000001005237b5 libnixexpr.dylib`nix::EvalState::forceString(nix::Value&, nix::Pos const&) + 37
    frame #229: 0x000000010052423b libnixexpr.dylib`nix::EvalState::forceString(nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, nix::Pos const&) + 27
    frame #230: 0x00000001005ce5b0 libnixexpr.dylib`nix::prim_split(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 320
    frame #231: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #232: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #233: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #234: 0x00000001005b89b5 libnixexpr.dylib`nix::EvalState::forceList(nix::Value&, nix::Pos const&) + 117
    frame #235: 0x00000001005c9809 libnixexpr.dylib`nix::prim_filter(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 73
    frame #236: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #237: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #238: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #239: 0x000000010051ee0f libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 1471
    frame #240: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #241: 0x00000001005b89b5 libnixexpr.dylib`nix::EvalState::forceList(nix::Value&, nix::Pos const&) + 117
    frame #242: 0x00000001005cac6f libnixexpr.dylib`nix::prim_concatMap(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 79
    frame #243: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #244: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #245: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #246: 0x00000001005b89b5 libnixexpr.dylib`nix::EvalState::forceList(nix::Value&, nix::Pos const&) + 117
    frame #247: 0x00000001005c80a4 libnixexpr.dylib`nix::prim_listToAttrs(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 68
    frame #248: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #249: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #250: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #251: 0x00000001005c6d48 libnixexpr.dylib`nix::EvalState::forceAttrs(nix::Value&, nix::Pos const&) + 120
    frame #252: 0x00000001005c7b3a libnixexpr.dylib`nix::prim_hasAttr(nix::EvalState&, nix::Pos const&, nix::Value**, nix::Value&) + 74
    frame #253: 0x000000010051f497 libnixexpr.dylib`nix::EvalState::callPrimOp(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 551
    frame #254: 0x000000010051e917 libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 199
    frame #255: 0x000000010051e821 libnixexpr.dylib`nix::ExprApp::eval(nix::EvalState&, nix::Env&, nix::Value&) + 97
    frame #256: 0x000000010051ee0f libnixexpr.dylib`nix::EvalState::callFunction(nix::Value&, nix::Value&, nix::Value&, nix::Pos const&) + 1471
    frame #257: 0x00000001005dab33 libnixexpr.dylib`std::__1::__function::__func<nix::addPath(nix::EvalState&, nix::Pos const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, nix::Value*, nix::FileIngestionMethod, std::__1::optional<nix::Hash>, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&)::$_7, std::__1::allocator<nix::addPath(nix::EvalState&, nix::Pos const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, nix::Value*, nix::FileIngestionMethod, std::__1::optional<nix::Hash>, nix::Value&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&)::$_7>, bool (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)>::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) + 307
    frame #258: 0x0000000100d95d69 libnixutil.dylib`nix::dump(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, nix::Sink&, std::__1::function<bool (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)>&) + 3065
    frame #259: 0x0000000100deee01 libnixutil.dylib`void boost::context::detail::fiber_entry<boost::context::detail::fiber_record<boost::context::fiber, nix::VirtualStackAllocator, boost::coroutines2::detail::pull_coroutine<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >::control_block::control_block<nix::VirtualStackAllocator, nix::sinkToSource(std::__1::function<void (nix::Sink&)>, std::__1::function<void ()>)::SinkToSource::read(char*, unsigned long)::'lambda'(boost::coroutines2::detail::push_coroutine<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >&)>(boost::context::preallocated, nix::VirtualStackAllocator&&, nix::sinkToSource(std::__1::function<void (nix::Sink&)>, std::__1::function<void ()>)::SinkToSource::read(char*, unsigned long)::'lambda'(boost::coroutines2::detail::push_coroutine<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >&)&&)::'lambda'(boost::context::fiber&&)> >(boost::context::detail::transfer_t) + 289
    frame #260: 0x000000010104c32f libboost_context.dylib`trampoline + 3
(lldb) 

More info in https://github.com/dfinity/motoko/issues/2912#issuecomment-974556060