this derivation will be built:
  /nix/store/rk7fymzylalfb17pa1qm8qphxj4sx9xm-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/rk7fymzylalfb17pa1qm8qphxj4sx9xm-bcachefs-module-7.0.0-38-generic.drv'...