these 6 derivations will be built:
  /nix/store/v50n8bpybpm97jwc76qx8gzhxb54xr1h-cargo-package-tokio-1.53.1.drv
  /nix/store/x2giyq42k8zjqh0frnbqi9yvks8g6d8m-vendor-registry.drv
  /nix/store/5agx2rvlmksh9g2l96navwwaz02jrh7l-vendor-cargo-deps.drv
  /nix/store/qgl17dddfsvsk1wa8s26mi123048m0p6-source.drv
  /nix/store/9w46byl1bklsdklkni4nr8j1nilsnbba-harmonia-deps-3.1.0.drv
  /nix/store/4s382vzm0dzncajm3h6vyb1bvji35hzl-harmonia-clippy-3.1.0.drv
Failed to find a machine for remote build!
derivation: 9w46byl1bklsdklkni4nr8j1nilsnbba-harmonia-deps-3.1.0.drv
required (system, features): (aarch64-linux, [])
1 available machines:
(systems, maxjobs, supportedFeatures, mandatoryFeatures)
([aarch64-darwin, x86_64-darwin], 8, [big-parallel, recursive-nix], [])
Failed to find a machine for remote build!
derivation: 4s382vzm0dzncajm3h6vyb1bvji35hzl-harmonia-clippy-3.1.0.drv
required (system, features): (aarch64-linux, [])
1 available machines:
(systems, maxjobs, supportedFeatures, mandatoryFeatures)
([aarch64-darwin, x86_64-darwin], 8, [big-parallel, recursive-nix], [])