these 4 derivations will be built:
  /nix/store/a52gzikkhn89nq6kj9m2mvm74j5cjwys-harmonia-llvm-cov-3.3.0.drv
  /nix/store/jxg1s2sd5sg1y54gkimnv9ss36pdpzlk-harmonia-llvm-cov-3.3.0.drv
  /nix/store/wpd6dhvcrnvicyrg5hxds3kh40vv7765-harmonia-llvm-cov-3.3.0.drv
  /nix/store/4znixa83nadc5q3yjabv371a33wmfiaf-inputDerivation-upload-codecov-effect.drv
building '/nix/store/a52gzikkhn89nq6kj9m2mvm74j5cjwys-harmonia-llvm-cov-3.3.0.drv'...
building '/nix/store/jxg1s2sd5sg1y54gkimnv9ss36pdpzlk-harmonia-llvm-cov-3.3.0.drv'...
building '/nix/store/wpd6dhvcrnvicyrg5hxds3kh40vv7765-harmonia-llvm-cov-3.3.0.drv'...
building '/nix/store/4znixa83nadc5q3yjabv371a33wmfiaf-inputDerivation-upload-codecov-effect.drv'...