root@debian:~/github.com/nim-lang/nimforum# nim -v
Nim Compiler Version 0.18.1 [Linux: amd64]
Compiled at 2018-06-22
Copyright (c) 2006-2018 by Andreas Rumpf
active boot switches: -d:release
nimble backend
...
Installing sass@#649e0701fa5c
Downloading https://github.com/dom96/sass using git
Error: unhandled exception: VM is not built with 'gorge' support [ERecoverableError]
stack trace: (most recent call last)
root/github.com/nim-lang/nimforum/nimforum.nimble(29) backendTask
root/.choosenim/toolchains/nim-#devel/lib/system/nimscript.nim(237) exec
root/.choosenim/toolchains/nim-#devel/lib/system/nimscript.nim(237, 7) Error: unhandled exception: FAILED: nimble c src/forum.nim