Resolving dependencies...
Configuring clean-unions-0.1.1...
Building clean-unions-0.1.1...
Preprocessing library clean-unions-0.1.1...
[1 of 1] Compiling Data.OpenUnion1.Clean ( src/Data/OpenUnion1/Clean.hs, dist/build/Data/OpenUnion1/Clean.o )
In-place registering clean-unions-0.1.1...
Running Haddock for clean-unions-0.1.1...
Running hscolour for clean-unions-0.1.1...
Preprocessing library clean-unions-0.1.1...
Preprocessing library clean-unions-0.1.1...
Haddock coverage:
  60% ( 12 / 20) in 'Data.OpenUnion1.Clean'
Warning: Data.OpenUnion1.Clean: could not find link destinations for:
    Data.OpenUnion1.Clean.TFCo:R:UnionEmptya Data.OpenUnion1.Clean.Exhausted Data.OpenUnion1.Clean.TFCo:R:Union:>a Data.OpenUnion1.Clean.Single Data.OpenUnion1.Clean.Union Data.OpenUnion1.Clean.position
Documentation created: dist/doc/html/clean-unions/index.html,
dist/doc/html/clean-unions/clean-unions.txt
Creating package registration file: /tmp/pkgConf-clean-unions-0.122061.1
Installing library in
/home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.8.3/clean-unions-0.1.1
Registering clean-unions-0.1.1...
Installed clean-unions-0.1.1
Configuring elevator-0.1.1...
Building elevator-0.1.1...
Preprocessing library elevator-0.1.1...
[1 of 1] Compiling Control.Elevator ( src/Control/Elevator.hs, dist/build/Control/Elevator.o )

src/Control/Elevator.hs:149:16:
    Not in scope: type constructor or class ‘ExceptT’
Failed to install elevator-0.1.1
cabal: Error: some packages failed to install:
elevator-0.1.1 failed during the building phase. The exception was:
ExitFailure 1