this derivation will be built:
  /nix/store/firg7x9ajly5znpz3p7d9j3zq7grwkbh-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/firg7x9ajly5znpz3p7d9j3zq7grwkbh-bcachefs-module-7.0.0-28-generic.drv'...