this derivation will be built:
  /nix/store/ry0fc6d8qrpl43carxj8lwivc59rhjrx-harmonia-llvm-cov-3.1.0.drv
building '/nix/store/ry0fc6d8qrpl43carxj8lwivc59rhjrx-harmonia-llvm-cov-3.1.0.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/ry0fc6d8qrpl43carxj8lwivc59rhjrx-harmonia-llvm-cov-3.1.0.drv'
harmonia-llvm-cov-3.1.0> Running phase: unpackPhase
harmonia-llvm-cov-3.1.0> unpacking source archive /nix/store/9zrl1yz5iq9bniyiiybqjhzjxv24zdrs-source
harmonia-llvm-cov-3.1.0> source root is source
harmonia-llvm-cov-3.1.0> Running phase: patchPhase
harmonia-llvm-cov-3.1.0> Executing configureCargoCommonVars
harmonia-llvm-cov-3.1.0> decompressing cargo artifacts from /nix/store/bslhnd2kql59ddsflh3wvmpxb1ffwgpw-harmonia-deps-3.1.0/target.tar.zst to target