these 5 derivations will be built:
  /nix/store/vf64mywnxk24mrc0yif4578r68d16faw-vendor-registry.drv
  /nix/store/6mck9nras8rg8km0gi6mcxkvdh4b229w-vendor-cargo-deps.drv
  /nix/store/ldcmb387w7i0wg2wvishiwacpsx08b2w-source.drv
  /nix/store/i7n264bj98r9rbc2zd8dhvxx787bqz4z-harmonia-deps-3.2.0.drv
  /nix/store/p7dp933gkma028bc3d3173xl1jxfbs2m-harmonia-llvm-cov-3.2.0.drv
Failed to find a machine for remote build!
derivation: ldcmb387w7i0wg2wvishiwacpsx08b2w-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: i7n264bj98r9rbc2zd8dhvxx787bqz4z-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: p7dp933gkma028bc3d3173xl1jxfbs2m-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], [])