these 2 derivations will be built:
  /nix/store/98k4ip8ywl7kw48pd3jkj1l3zgj5aird-harmonia-deps-3.2.0.drv
  /nix/store/sv6cs9fgj1ylpkqb4jdj640hvwiw8nwk-harmonia-llvm-cov-3.2.0.drv