Resolving dependencies...
Configuring mtl-2.2.1...
Configuring random-1.1...
Building mtl-2.2.1...
Building random-1.1...
Installed random-1.1
Configuring stm-2.4.4.1...
Building stm-2.4.4.1...
Configuring syb-0.6...
Installed mtl-2.2.1
Building syb-0.6...
Configuring transformers-compat-0.5.1.4...
Installed stm-2.4.4.1
Building transformers-compat-0.5.1.4...
Installed syb-0.6
Installed transformers-compat-0.5.1.4
Configuring exceptions-0.8.3...
Building exceptions-0.8.3...
Installed exceptions-0.8.3
Configuring bimap-0.3.2...
Building bimap-0.3.2...
Installed bimap-0.3.2
Configuring atom-1.0.13...
Building atom-1.0.13...
Installed atom-1.0.13
Configuring copilot-0.27...
Building copilot-0.27...
Failed to install copilot-0.27
Build log ( /home/builder/.cabal/logs/copilot-0.27.log ):
cabal: Entering directory '/tmp/cabal-tmp-21484/copilot-0.27'
Configuring copilot-0.27...
Building copilot-0.27...
Preprocessing library copilot-0.27...
[ 1 of 22] Compiling Language.Copilot.Help ( Language/Copilot/Help.hs, dist/build/Language/Copilot/Help.o )
[ 2 of 22] Compiling Language.Copilot.Core ( Language/Copilot/Core.hs, dist/build/Language/Copilot/Core.o )

Language/Copilot/Core.hs:361:17: error:
    Not in scope: type variable ‘a’

Language/Copilot/Core.hs:361:31: error:
    Not in scope: type variable ‘a’

Language/Copilot/Core.hs:418:17: error:
    Not in scope: type variable ‘a’

Language/Copilot/Core.hs:418:31: error:
    Not in scope: type variable ‘a’

Language/Copilot/Core.hs:418:42: error:
    Not in scope: type variable ‘a’
cabal: Leaving directory '/tmp/cabal-tmp-21484/copilot-0.27'
cabal: Error: some packages failed to install:
copilot-0.27 failed during the building phase. The exception was:
ExitFailure 1