these 2 derivations will be built:
  /nix/store/xv550r57wap89awpgka3v8z5awra4591-muse-code-1.4.4-R5419.1.drv
  /nix/store/s8qjmh7cgywk7xclwcabnf538l15wnyl-check-muse-code.drv