these 5 derivations will be built:
  /nix/store/2jzfiv85fgdpvmr0rvwr99h8hjwld7jf-source.drv
  /nix/store/73l6wzzzrsrsxdkpf8kiapndh21qp511-vendor-registry.drv
  /nix/store/xynscss6bbs78qhqsmsig2f0n2n1dqdl-vendor-cargo-deps.drv
  /nix/store/x1sdavny84cmzsfri5x2cdg23zq0lbvh-harmonia-deps-3.1.0.drv
  /nix/store/nijxppnj7hj2qv7f2z1sa00cdgcp1shm-harmonia-llvm-cov-3.1.0.drv
Failed to find a machine for remote build!
derivation: x1sdavny84cmzsfri5x2cdg23zq0lbvh-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: nijxppnj7hj2qv7f2z1sa00cdgcp1shm-harmonia-llvm-cov-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], [])