this derivation will be built:
  /nix/store/xd38k8vjjixlnwv5yl8913pf9ghppxs8-spec-dhall.drv
building '/nix/store/xd38k8vjjixlnwv5yl8913pf9ghppxs8-spec-dhall.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'
building '/nix/store/xd38k8vjjixlnwv5yl8913pf9ghppxs8-spec-dhall.drv' on farm.numtide.com:50051
spec-dhall> elastic-arm-09bdbd10: building xd38k8vjjixlnwv5yl8913pf9ghppxs8-spec-dhall.drv
spec-dhall> dhall: 
spec-dhall> Error: Invalid input
spec-dhall> 
spec-dhall> invalid/a.dhall:2:1:
spec-dhall>   |
spec-dhall> 2 | <empty line>
spec-dhall>   | ^
spec-dhall> unexpected end of input
spec-dhall> expecting whitespace or }
spec-dhall> 
spec-dhall> HasCallStack backtrace:
spec-dhall>   collectBacktraces, called at libraries/ghc-internal/src/GHC/Internal/Exception.hs:169:13 in ghc-internal:GHC.Internal.Exception
spec-dhall>   toExceptionWithBacktrace, called at libraries/ghc-internal/src/GHC/Internal/Exception.hs:89:42 in ghc-internal:GHC.Internal.Exception
spec-dhall>   throw, called at libraries/ghc-internal/src/GHC/Internal/Control/Exception.hs:144:47 in ghc-internal:GHC.Internal.Control.Exception
spec-dhall> 
spec-dhall> 
spec-dhall> dhall: 
spec-dhall> Error: Invalid input
spec-dhall> 
spec-dhall> invalid/a.dhall:2:1:
spec-dhall>   |
spec-dhall> 2 | <empty line>
spec-dhall>   | ^
spec-dhall> unexpected end of input
spec-dhall> expecting whitespace or }
spec-dhall> 
spec-dhall> HasCallStack backtrace:
spec-dhall>   collectBacktraces, called at libraries/ghc-internal/src/GHC/Internal/Exception.hs:169:13 in ghc-internal:GHC.Internal.Exception
spec-dhall>   toExceptionWithBacktrace, called at libraries/ghc-internal/src/GHC/Internal/Exception.hs:89:42 in ghc-internal:GHC.Internal.Exception
spec-dhall>   throw, called at libraries/ghc-internal/src/GHC/Internal/Control/Exception.hs:144:47 in ghc-internal:GHC.Internal.Control.Exception
spec-dhall> 
spec-dhall> 

upload niks3: ok