these 3 derivations will be built:
  /nix/store/hgz9xif8khki0wmza97lsqkpg4sf8921-iets-fuzzers-0.0.0.drv
  /nix/store/nwzi0k4sgzn1l4zpg21xacsbrzaz7kl4-iets-fuzz-diff-0.0.0.drv
  /nix/store/zyazsjj0v2jm82rrj93s24nfwrag2frq-iets-fuzz-nar-check.drv
warning: zyazsjj0v2jm82rrj93s24nfwrag2frq-iets-fuzz-nar-check.drv: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}, waiting up to 120s for a worker
zyazsjj0v2jm82rrj93s24nfwrag2frq-iets-fuzz-nar-check.drv: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}
error: build of '/nix/store/zyazsjj0v2jm82rrj93s24nfwrag2frq-iets-fuzz-nar-check.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-linux' failed: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}
error: Cannot build '/nix/store/zyazsjj0v2jm82rrj93s24nfwrag2frq-iets-fuzz-nar-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/d0f9p7r9h41hshrh8hgp746zvm0mnnwj-iets-fuzz-nar-check