these 4 derivations will be built:
  /nix/store/p5ynixpx6kb3nkpzw3fcpvcs3kw4hw2w-Cargo.toml.drv
  /nix/store/dww093dm0z9ljjfjkllg6nkav5jbh6wv-source.drv
  /nix/store/bzpssssawd8vk2f356k4ghxsbfvmailc-iets-deps-0.2.0.drv
  /nix/store/adkhak866mkqrlnw1kags1l3l0m4driy-iets-doctest-0.2.0.drv
adkhak866mkqrlnw1kags1l3l0m4driy-iets-doctest-0.2.0.drv: elastic-arm-e65ee682: not scheduled here: adkhak866mkqrlnw1kags1l3l0m4driy-iets-doctest-0.2.0.drv, asking the scheduler again