this derivation will be built:
  /nix/store/y78bfzfria816cc6izkv7zxxi4jjpc0j-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/y78bfzfria816cc6izkv7zxxi4jjpc0j-bcachefs-module-7.0.0-29-generic.drv'...