this derivation will be built:
  /nix/store/r8jai1cw0wd2mr1ym57k01wz12v57nh7-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/r8jai1cw0wd2mr1ym57k01wz12v57nh7-bcachefs-module-7.0.0-38-generic.drv'...