these 2 derivations will be built:
  /nix/store/a9p3wk0nzsrnaj4m4f3hn94c50asdj5q-harmonia-deps-3.1.0.drv
  /nix/store/8pd8hrv0mix4qykllb3fa6v8w5anx53j-harmonia-llvm-cov-3.1.0.drv
Failed to find a machine for remote build!
derivation: a9p3wk0nzsrnaj4m4f3hn94c50asdj5q-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: 8pd8hrv0mix4qykllb3fa6v8w5anx53j-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], [])