these 2 derivations will be built:
  /nix/store/x4hcihsbd7ccxfwfxd10xspfs0v9z4gd-cargo-vendor-dir.drv
  /nix/store/d09km1bj2b4msqwky4lp9pz6by019m86-nixfmt-rs-static-x86_64-unknown-linux-musl-0.5.3.drv