this derivation will be built:
  /nix/store/b4b5kya0am7l34kzxdny9a0pfbsxsa5n-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/b4b5kya0am7l34kzxdny9a0pfbsxsa5n-bcachefs-module-7.0.0-39-generic.drv'...