this derivation will be built:
  /nix/store/d5llma2yahymj9i9wbj7mq4pbxm38zz3-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/d5llma2yahymj9i9wbj7mq4pbxm38zz3-bcachefs-module-7.0.0-38-generic.drv'...