Resolving dependencies...
Configuring file-embed-0.0.10...
Building file-embed-0.0.10...
Installed file-embed-0.0.10
Downloading Salsa-0.2.0.1...
Configuring Salsa-0.2.0.1...
Building Salsa-0.2.0.1...
Failed to install Salsa-0.2.0.1
Build log ( /home/builder/.cabal/logs/Salsa-0.2.0.1.log ):
cabal: Entering directory '/tmp/cabal-tmp-5037/Salsa-0.2.0.1'
Configuring Salsa-0.2.0.1...
Building Salsa-0.2.0.1...
Preprocessing library Salsa-0.2.0.1...
[1 of 9] Compiling Foreign.Salsa.TypePrelude ( Foreign/Salsa/TypePrelude.hs, dist/build/Foreign/Salsa/TypePrelude.o )
[2 of 9] Compiling Foreign.Salsa.Driver ( Foreign/Salsa/Driver.hs, dist/build/Foreign/Salsa/Driver.o )
[3 of 9] Compiling Foreign.Salsa.Mono.CLRHost ( Foreign/Salsa/Mono/CLRHost.hs, dist/build/Foreign/Salsa/Mono/CLRHost.o )
[4 of 9] Compiling Foreign.Salsa.CLR ( Foreign/Salsa/CLR.hs, dist/build/Foreign/Salsa/CLR.o )
[5 of 9] Compiling Foreign.Salsa.Common ( Foreign/Salsa/Common.hs, dist/build/Foreign/Salsa/Common.o )
[6 of 9] Compiling Foreign.Salsa.Resolver ( Foreign/Salsa/Resolver.hs, dist/build/Foreign/Salsa/Resolver.o )
[7 of 9] Compiling Foreign.Salsa.Core ( Foreign/Salsa/Core.hs, dist/build/Foreign/Salsa/Core.o )
[8 of 9] Compiling Foreign.Salsa.Binding ( Foreign/Salsa/Binding.hs, dist/build/Foreign/Salsa/Binding.o )

Foreign/Salsa/Binding.hs:50:1: error:
    • Non type-variable argument
        in the constraint: Marshal from1 SalsaString
      (Use FlexibleContexts to permit this)
    • When checking the inferred type
        type_GetType :: forall b from1.
                        (Marshal from1 SalsaString, Unmarshal ObjectId b) =>
                        from1 -> IO b
cabal: Leaving directory '/tmp/cabal-tmp-5037/Salsa-0.2.0.1'
cabal: Error: some packages failed to install:
Salsa-0.2.0.1 failed during the building phase. The exception was:
ExitFailure 1