Resolving dependencies... Starting base-orphans-0.8.6 Starting algebraic-graphs-0.6 Building base-orphans-0.8.6 Building algebraic-graphs-0.6 Completed base-orphans-0.8.6 Starting hashable-1.4.0.2 Building hashable-1.4.0.2 Completed hashable-1.4.0.2 Completed algebraic-graphs-0.6 Starting int-like-0.1.0 Building int-like-0.1.0 Failed to install int-like-0.1.0 Build log ( /home/builder/.cabal/logs/ghc-8.10.2/int-like-0.1.0-8rxrvrkzS32HbJwthTOT6t.log ): cabal: Entering directory '/tmp/cabal-tmp-16346/int-like-0.1.0' Configuring int-like-0.1.0... Preprocessing library for int-like-0.1.0.. Building library for int-like-0.1.0.. [1 of 6] Compiling IntLike.Set ( src/IntLike/Set.hs, dist/build/IntLike/Set.o, dist/build/IntLike/Set.dyn_o ) src/IntLike/Set.hs:116:28: error: Not in scope: IntSet.alterF Perhaps you meant IntSet.filter (imported from Data.IntSet) Module Data.IntSet does not export alterF. | 116 | insertState f x = coerce . IntSet.alterF (\b -> (f b, True)) (coerce x) . unIntLikeSet | ^^^^^^^^^^^^^ cabal: Leaving directory '/tmp/cabal-tmp-16346/int-like-0.1.0' cabal: Error: some packages failed to install: int-like-0.1.0-8rxrvrkzS32HbJwthTOT6t failed during the building phase. The exception was: ExitFailure 1