these 5 derivations will be built:
  /nix/store/rzf72g70dcs909383vmsb3rqnnlfrqjp-vendor-registry.drv
  /nix/store/xdsljra52bn5hyqcz6cvsyrmakshpd5f-vendor-cargo-deps.drv
  /nix/store/yghx9nciwxk6fzyy3fq1sjpjwzhg2d4d-source.drv
  /nix/store/7kz34fjzd0fwkbzhwzfjg4rrbb8wzyp1-harmonia-deps-3.2.0.drv
  /nix/store/vcjnvmj80wjlgb194f9q3p97cj7bpdzk-harmonia-llvm-cov-3.2.0.drv
Failed to find a machine for remote build!
derivation: 7kz34fjzd0fwkbzhwzfjg4rrbb8wzyp1-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: vcjnvmj80wjlgb194f9q3p97cj7bpdzk-harmonia-llvm-cov-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], [])