these 4 derivations will be built:
  /nix/store/bfpdd35bdahc233xsvf7abzwbg9xiy60-Cargo.toml.drv
  /nix/store/j2s6m3wi9741dabajjq059fbgfm01p6r-source.drv
  /nix/store/zfldx4l685d34w651li3pbz43j316k2q-iets-deps-static-aarch64-unknown-linux-musl-0.1.0.drv
  /nix/store/j4fn9g91wxjns0ny03rlj52gmfyn062c-iets-static-aarch64-unknown-linux-musl-0.1.0.drv