these 4 derivations will be built:
  /nix/store/dpijv97jmf0zqzcr7xxs2m5dmnyvck0g-Cargo.toml.drv
  /nix/store/19rgdrzw9irfnrdnb257k2lssx5z687g-source.drv
  /nix/store/jisvgshk0pdl98312ppxsd22ywgcyshc-harmonia-deps-3.2.0.drv
  /nix/store/siy6rl1i822hz81x393zniy74r34vmbb-harmonia-3.2.0.drv
Failed to find a machine for remote build!
derivation: dpijv97jmf0zqzcr7xxs2m5dmnyvck0g-Cargo.toml.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: 19rgdrzw9irfnrdnb257k2lssx5z687g-source.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: jisvgshk0pdl98312ppxsd22ywgcyshc-harmonia-deps-3.2.0.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: siy6rl1i822hz81x393zniy74r34vmbb-harmonia-3.2.0.drv
required (system, features): (aarch64-linux, [])
1 available machines:
(systems, maxjobs, supportedFeatures, mandatoryFeatures)
([aarch64-darwin, x86_64-darwin], 8, [big-parallel, recursive-nix], [])