these 3 derivations will be built:
  /nix/store/a5pq5n2bzkv92qap1s0a5kcmbd66g8q5-source.drv
  /nix/store/0p1vygx1lqbm161frcgajq4q3flhvv9y-harmonia-deps-3.2.0.drv
  /nix/store/jb8mppw8bllka6glh48y4da9g7w1f65m-harmonia-3.2.0.drv
Failed to find a machine for remote build!
derivation: a5pq5n2bzkv92qap1s0a5kcmbd66g8q5-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: 0p1vygx1lqbm161frcgajq4q3flhvv9y-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: jb8mppw8bllka6glh48y4da9g7w1f65m-harmonia-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], [])