this derivation will be built:
  /nix/store/63fxcc850ab55dq1iz9fp6jas1d80zb8-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/63fxcc850ab55dq1iz9fp6jas1d80zb8-bcachefs-module-7.0.0-30-generic.drv'...