these 4 derivations will be built:
  /nix/store/f6361id32sajz5zzxjnj1mbplaqnpmaw-Cargo.toml.drv
  /nix/store/r7pf3yba0jkix1aibnqdpmbcgjncscsa-source.drv
  /nix/store/94ycmm0l4ryjnw2a90zl1r12xjkvsarf-harmonia-deps-3.2.0.drv
  /nix/store/frs548qp6fi0b5jp8q9k4g47amr5h0s9-harmonia-clippy-3.2.0.drv
Failed to find a machine for remote build!
derivation: f6361id32sajz5zzxjnj1mbplaqnpmaw-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: r7pf3yba0jkix1aibnqdpmbcgjncscsa-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: 94ycmm0l4ryjnw2a90zl1r12xjkvsarf-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: frs548qp6fi0b5jp8q9k4g47amr5h0s9-harmonia-clippy-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], [])