this derivation will be built:
  /nix/store/mxzv1zjj39d5h42bsd636qw81bxx5w7n-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/mxzv1zjj39d5h42bsd636qw81bxx5w7n-bcachefs-module-7.0.0-39-generic.drv'...