this derivation will be built:
  /nix/store/z5akmfsdkbdf2jl33z6w3407zzwgz3wv-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/z5akmfsdkbdf2jl33z6w3407zzwgz3wv-bcachefs-module-7.0.0-30-generic.drv'...