these 2 derivations will be built:
  /nix/store/2l2vhy110183zizls7i8x129cf173q9x-muse-code-1.4.11-R6667.1.drv
  /nix/store/xsd9jnykd0dfsxky45azb1vf8jhkhs03-check-muse-code.drv