Can’t install pijul

[loewenheim]

Describe the bug Installing pijul fails with

error: failed to run custom build command for `nettle-sys v1.0.1`

Caused by:
  process didn't exit successfully: `/build/pijul-0.12.0/target/release/build/nettle-sys-7dde18c526a5efcf/build-script-build` (exit code: 101)
--- stdout
cargo:rustc-link-search=native=/nix/store/wc2mfjvrnnzdjazmsf8v0lpif3y9m1a0-nettle-3.5.1/lib
cargo:rustc-link-lib=nettle
cargo:rustc-link-lib=hogweed
cargo:include=/nix/store/nam3ilc4s70985mmb22lb0adbkqlcrvh-nettle-3.5.1-dev/include
cargo:rustc-link-lib=dylib=nettle
cargo:rustc-link-lib=dylib=hogweed
cargo:rustc-link-search=native=/nix/store/wc2mfjvrnnzdjazmsf8v0lpif3y9m1a0-nettle-3.5.1/lib
cargo:rustc-link-lib=dylib=gmp

--- stderr
bindgen-wrapper.h:19:10: fatal error: 'nettle/des-compat.h' file not found
bindgen-wrapper.h:19:10: fatal error: 'nettle/des-compat.h' file not found, err: true
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: ()', src/libcore/result.rs:1165:5
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace.

To Reproduce nix-env -iA nixos.pijul

Output of nix run nixpkgs.nix-info -c nix-info -m:

 - system: `"x86_64-linux"`
 - host os: `Linux 4.19.84, NixOS, 20.03pre201996.41d921292e9 (Markhor)`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.3.1`
 - channels(root): `"nixos-20.03pre201996.41d921292e9"`
 - channels(user): `"home-manager"`
 - nixpkgs: `/nix/var/nix/profiles/per-user/root/channels/nixos`

[c0bw3b]

Friendly ping to @FlorentBecker as pijul maintainer

[marsam]

upstream issue https://nest.pijul.com/pijul_org/pijul/discussions/416. I think is fixed in upstream master, so maybe we can apply those patches