this derivation will be built:
  /nix/store/mdh86ygzy42sb45w60z8wbddwzwzgif2-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/mdh86ygzy42sb45w60z8wbddwzwzgif2-bcachefs-module-7.0.0-31-generic.drv'...