this derivation will be built:
  /nix/store/s20bn540465awz02xjw1rbi04vrlwq51-spec-just.drv
building '/nix/store/s20bn540465awz02xjw1rbi04vrlwq51-spec-just.drv'
spec-just> Wrote justfile to `/build/shallow/justfile`
spec-just> Wrote justfile to `/build/deep/x/y/justfile`
spec-just> error: Expected '*', ':', '$', identifier, or '+', but found '::'
spec-just>  ——▶ justfile:3:9
spec-just>   │
spec-just> 3 │ invalid ::: {
spec-just>   │         ^^

upload niks3: ok