this derivation will be built:
  /nix/store/1w0p7j4aqblv6yszzcqcy76g3n3qyndk-interpolate-conformance.drv
building '/nix/store/1w0p7j4aqblv6yszzcqcy76g3n3qyndk-interpolate-conformance.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'
error: gRPC BuildDerivation on 'farm.numtide.com:50051' failed: bld4: missing: /nix/store/1w0p7j4aqblv6yszzcqcy76g3n3qyndk-interpolate-conformance.drv
error: Cannot build '/nix/store/1w0p7j4aqblv6yszzcqcy76g3n3qyndk-interpolate-conformance.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/dd3xdrmx9ard1b81d06r1ccxhcwlqn0m-interpolate-conformance