these 6 derivations will be built:
  /nix/store/3k915a0qmxc6xww8wnscz1wh89jhqp1p-source.drv
  /nix/store/bikq1cjxsxlw4qlbwi4l4i7sdgbjmb37-cargo-package-tokio-1.54.1.drv
  /nix/store/ggzd0zgw94if658sm3ki2v6p8byrjqb6-vendor-registry.drv
  /nix/store/qx3cy0bgwg9yzv2hp4bs0c8fagmpzlbg-vendor-cargo-deps.drv
  /nix/store/ax53a08wds5k7626hs95832cfd1xx75x-herdr-eternal-deps-0.1.0.drv
  /nix/store/0wxvnxsmyznzah9kc7cvr2mwi8wybvi1-herdr-eternal-0.1.0.drv
building '/nix/store/3k915a0qmxc6xww8wnscz1wh89jhqp1p-source.drv'
source> tribuchet: building on jamie