these 5 derivations will be built:
  /nix/store/474gd8qblxkkfsikcf71bx4j2g86ngkk-source.drv
  /nix/store/mcy7rxpaqn5kjbsswygn7pb8iyfq5avf-but-0.23.0-vendor-staging.drv
  /nix/store/zpqv08rbvjb62s111pl54wxk3fdrj82q-but-0.23.0-vendor.drv
  /nix/store/g1yx9m4afws6w0bzhhmivg9jdp1d05r9-but-0.23.0.drv
  /nix/store/wj514a48rin5p6jq67n1v9pgkbnsglvq-check-but.drv