these 2 derivations will be built:
  /nix/store/5f2bl95w2bi6fszr73w83paj56w1bb2a-flake-inputs.drv
  /nix/store/gpykld1qkif1r0pb6d2rhs88h2zasr6w-check-flake-inputs.drv
building '/nix/store/5f2bl95w2bi6fszr73w83paj56w1bb2a-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=21&system=aarch64-darwin'
building '/nix/store/5f2bl95w2bi6fszr73w83paj56w1bb2a-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building 5f2bl95w2bi6fszr73w83paj56w1bb2a-flake-inputs.drv
building '/nix/store/gpykld1qkif1r0pb6d2rhs88h2zasr6w-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=20&system=aarch64-darwin'
building '/nix/store/gpykld1qkif1r0pb6d2rhs88h2zasr6w-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building gpykld1qkif1r0pb6d2rhs88h2zasr6w-check-flake-inputs.drv