these 4 derivations will be built:
  /nix/store/jmd0l5j1p2nkpswwv0ld6zd5q2b4hbg7-Cargo.toml.drv
  /nix/store/6mb0yqqxrckpw0h9sndj80g9qpnk11m0-source.drv
  /nix/store/3n8z2pqwspv3mjxqak5d2419186m9qap-flakelet-relay-deps-0.1.0.drv
  /nix/store/x0gvz59gipsb427028sb38rdjkhy1dv6-flakelet-relay-0.1.0.drv
Failed to find a machine for remote build!
derivation: jmd0l5j1p2nkpswwv0ld6zd5q2b4hbg7-Cargo.toml.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: 6mb0yqqxrckpw0h9sndj80g9qpnk11m0-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: 3n8z2pqwspv3mjxqak5d2419186m9qap-flakelet-relay-deps-0.1.0.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: x0gvz59gipsb427028sb38rdjkhy1dv6-flakelet-relay-0.1.0.drv
required (system, features): (aarch64-linux, [])
1 available machines:
(systems, maxjobs, supportedFeatures, mandatoryFeatures)
([aarch64-darwin, x86_64-darwin], 8, [big-parallel, recursive-nix], [])