this derivation will be built:
  /nix/store/z69331qv0xqysrdp2yzbyc69y4n422zi-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/z69331qv0xqysrdp2yzbyc69y4n422zi-bcachefs-module-7.0.0-39-generic.drv'...