these 2 derivations will be built:
  /nix/store/p5sacc90mrbvkjjph9dw33djin1d0mkq-cargo-vendor-dir.drv
  /nix/store/58djv25sca6qkaba06bh7qg7jb3qj305-bob-0.1.0.drv
p5sacc90mrbvkjjph9dw33djin1d0mkq-cargo-vendor-dir.drv: elastic-arm-6cbc966c: not scheduled here: p5sacc90mrbvkjjph9dw33djin1d0mkq-cargo-vendor-dir.drv, asking the scheduler again