Resolving dependencies... Starting dec-0.0.4 Starting ghc-tcplugins-extra-0.4.1 Starting hashable-1.3.1.0 Starting splitmix-0.1.0.3 Building dec-0.0.4 Building hashable-1.3.1.0 Building ghc-tcplugins-extra-0.4.1 Building splitmix-0.1.0.3 Completed dec-0.0.4 Starting syb-0.7.2.1 Building syb-0.7.2.1 Completed splitmix-0.1.0.3 Starting tagged-0.8.6.1 Completed ghc-tcplugins-extra-0.4.1 Starting random-1.2.0 Building tagged-0.8.6.1 Building random-1.2.0 Completed hashable-1.3.1.0 Completed syb-0.7.2.1 Completed tagged-0.8.6.1 Starting universe-base-1.1.2 Building universe-base-1.1.2 Completed universe-base-1.1.2 Completed random-1.2.0 Starting QuickCheck-2.14.2 Building QuickCheck-2.14.2 Completed QuickCheck-2.14.2 Starting fin-0.2 Building fin-0.2 Completed fin-0.2 Starting apply-unordered-1.0 Building apply-unordered-1.0 Failed to install apply-unordered-1.0 Build log ( /home/builder/.cabal/logs/ghc-8.10.2/apply-unordered-1.0-eP6UNPhorNttzt8B2vPC.log ): cabal: Entering directory '/tmp/cabal-tmp-9440/apply-unordered-1.0' Configuring apply-unordered-1.0... Preprocessing library for apply-unordered-1.0.. Building library for apply-unordered-1.0.. [1 of 4] Compiling Control.Apply.Positional ( src/Control/Apply/Positional.hs, dist/build/Control/Apply/Positional.o, dist/build/Control/Apply/Positional.dyn_o ) [2 of 4] Compiling Control.Apply.Unordered ( src/Control/Apply/Unordered.hs, dist/build/Control/Apply/Unordered.o, dist/build/Control/Apply/Unordered.dyn_o ) [3 of 4] Compiling Control.Apply.Unordered.Plugin ( src/Control/Apply/Unordered/Plugin.hs, dist/build/Control/Apply/Unordered/Plugin.o, dist/build/Control/Apply/Unordered/Plugin.dyn_o ) src/Control/Apply/Unordered/Plugin.hs:152:7: error: Not in scope: type constructor or class ‘Ct’ | 152 | -> [Ct] | ^^ src/Control/Apply/Unordered/Plugin.hs:153:17: error: Not in scope: type constructor or class ‘Ct’ | 153 | -> TcPluginM [Ct] | ^^ src/Control/Apply/Unordered/Plugin.hs:165:52: error: Not in scope: type constructor or class ‘CtLoc’ | 165 | findRelevant :: ([Type] -> Maybe Type) -> TyCon -> CtLoc -> Type -> [MagicTyFamResult] | ^^^^^ src/Control/Apply/Unordered/Plugin.hs:175:22: error: Not in scope: type constructor or class ‘CtLoc’ | 175 | { _mtfrLoc :: CtLoc | ^^^^^ cabal: Leaving directory '/tmp/cabal-tmp-9440/apply-unordered-1.0' cabal: Error: some packages failed to install: apply-unordered-1.0-eP6UNPhorNttzt8B2vPC failed during the building phase. The exception was: ExitFailure 1