these 4 derivations will be built:
  /nix/store/2h8b6qzsv39xm98dyv4ixnd53lklbk95-crate-ignore-0.4.30.tar.gz.drv
  /nix/store/8r6hia9cgm8vvnx12jb0s7pv3pywyyfv-ignore-0.4.30.drv
  /nix/store/y0d7pv6prhxjq1h0zgk0vllak8k5pfp9-cargo-vendor-dir.drv
  /nix/store/bbyb82xm8p2m0knf5v2dkchiknjz9vn5-nixfmt-rs-static-x86_64-unknown-linux-musl-0.5.1.drv