these 3 derivations will be built:
  /nix/store/id6l9xmgy623gzdvpa1gb52wgnzhvg6x-iets-fuzzers-0.0.0.drv
  /nix/store/ypjhz9xmkvl4lq8av1szvbi71hsy8zxp-iets-fuzz-diff-0.0.0.drv
  /nix/store/hghmikmdxxx4flx7szaj9z73asjkwj47-iets-fuzz-nar-check.drv
warning: hghmikmdxxx4flx7szaj9z73asjkwj47-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
hghmikmdxxx4flx7szaj9z73asjkwj47-iets-fuzz-nar-check.drv: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}
error: build of '/nix/store/hghmikmdxxx4flx7szaj9z73asjkwj47-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=22&system=aarch64-linux' failed: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}
error: Cannot build '/nix/store/hghmikmdxxx4flx7szaj9z73asjkwj47-iets-fuzz-nar-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/s33xldz4r1ps9cmnqckpxnl8zg1kmqxd-iets-fuzz-nar-check