this derivation will be built:
  /nix/store/fs44cjpw8g3frw256fdz9z9p23sq5bsc-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/fs44cjpw8g3frw256fdz9z9p23sq5bsc-bcachefs-module-7.0.0-31-generic.drv'...