Resolving dependencies... Configuring ansi-terminal-0.6.2.3... Configuring base16-bytestring-0.1.1.6... Building ansi-terminal-0.6.2.3... Building base16-bytestring-0.1.1.6... Configuring auto-update-0.1.4... Installed base16-bytestring-0.1.1.6 Building auto-update-0.1.4... Installed ansi-terminal-0.6.2.3 Configuring bytestring-builder-0.10.8.1.0... Configuring call-stack-0.1.0... Installed auto-update-0.1.4 Building bytestring-builder-0.10.8.1.0... Configuring failure-0.2.0.3... Installed bytestring-builder-0.10.8.1.0 Building call-stack-0.1.0... Building failure-0.2.0.3... Configuring hspec-discover-2.3.2... Installed call-stack-0.1.0 Configuring easy-file-0.2.1... Installed failure-0.2.0.3 Building hspec-discover-2.3.2... Building easy-file-0.2.1... Configuring monad-loops-0.4.3... Installed hspec-discover-2.3.2 Configuring mtl-2.2.1... Installed easy-file-0.2.1 Building monad-loops-0.4.3... Building mtl-2.2.1... Configuring network-2.6.3.1... Installed monad-loops-0.4.3 Configuring old-locale-1.0.0.7... Installed mtl-2.2.1 Building network-2.6.3.1... Building old-locale-1.0.0.7... Configuring random-1.1... Installed old-locale-1.0.0.7 Building random-1.1... Configuring primitive-0.6.2.0... Installed random-1.1 Building primitive-0.6.2.0... Configuring semigroups-0.18.2... Installed network-2.6.3.1 Building semigroups-0.18.2... Configuring setenv-0.1.1.3... Installed semigroups-0.18.2 Building setenv-0.1.1.3... Configuring stm-2.4.4.1... Installed setenv-0.1.1.3 Building stm-2.4.4.1... Configuring transformers-compat-0.5.1.4... Installed primitive-0.6.2.0 Building transformers-compat-0.5.1.4... Configuring text-1.2.2.1... Installed stm-2.4.4.1 Configuring zlib-0.6.1.2... Installed transformers-compat-0.5.1.4 Building text-1.2.2.1... Building zlib-0.6.1.2... Installed zlib-0.6.1.2 Configuring HUnit-1.5.0.0... Building HUnit-1.5.0.0... Configuring old-time-1.1.0.3... Installed HUnit-1.5.0.0 Building old-time-1.1.0.3... Configuring async-2.1.1... Installed old-time-1.1.0.3 Building async-2.1.1... Configuring stm-chans-3.0.0.4... Installed text-1.2.2.1 Configuring tf-random-0.5... Installed async-2.1.1 Building tf-random-0.5... Building stm-chans-3.0.0.4... Configuring exceptions-0.8.3... Installed tf-random-0.5 Building exceptions-0.8.3... Configuring mmorph-1.0.9... Installed stm-chans-3.0.0.4 Building mmorph-1.0.9... Configuring tagged-0.8.5... Installed exceptions-0.8.3 Building tagged-0.8.5... Configuring transformers-base-0.4.4... Installed mmorph-1.0.9 Building transformers-base-0.4.4... Installed transformers-base-0.4.4 Configuring hspec-expectations-0.8.2... Building hspec-expectations-0.8.2... Installed tagged-0.8.5 Configuring unix-time-0.3.7... Building unix-time-0.3.7... Configuring attoparsec-0.10.4.0... Installed hspec-expectations-0.8.2 Building attoparsec-0.10.4.0... Configuring blaze-builder-0.4.0.2... Installed unix-time-0.3.7 Building blaze-builder-0.4.0.2... Configuring hashable-1.2.4.0... Installed blaze-builder-0.4.0.2 Building hashable-1.2.4.0... Configuring system-filepath-0.4.13.4... Installed attoparsec-0.10.4.0 Configuring QuickCheck-2.9.2... Installed hashable-1.2.4.0 Building QuickCheck-2.9.2... Building system-filepath-0.4.13.4... Configuring monad-control-1.0.1.0... Installed system-filepath-0.4.13.4 Building monad-control-1.0.1.0... Installed monad-control-1.0.1.0 Configuring fast-logger-2.4.7... Building fast-logger-2.4.7... Installed fast-logger-2.4.7 Configuring unordered-containers-0.2.7.1... Building unordered-containers-0.2.7.1... Configuring streaming-commons-0.1.16... Installed QuickCheck-2.9.2 Building streaming-commons-0.1.16... Configuring system-fileio-0.3.16.3... Installed unordered-containers-0.2.7.1 Building system-fileio-0.3.16.3... Configuring lifted-base-0.2.3.8... Installed system-fileio-0.3.16.3 Building lifted-base-0.2.3.8... Configuring quickcheck-io-0.1.4... Installed streaming-commons-0.1.16 Building quickcheck-io-0.1.4... Installed lifted-base-0.2.3.8 Configuring resourcet-1.1.9... Building resourcet-1.1.9... Installed quickcheck-io-0.1.4 Configuring hspec-core-2.3.2... Building hspec-core-2.3.2... Installed resourcet-1.1.9 Configuring conduit-1.2.8... Building conduit-1.2.8... Installed hspec-core-2.3.2 Configuring hspec-2.3.2... Building hspec-2.3.2... Installed hspec-2.3.2 Installed conduit-1.2.8 Configuring conduit-extra-1.1.15... Building conduit-extra-1.1.15... Installed conduit-extra-1.1.15 Configuring monad-logger-0.3.20.1... Building monad-logger-0.3.20.1... Installed monad-logger-0.3.20.1 Configuring gitlib-3.0.2... Building gitlib-3.0.2... Failed to install gitlib-3.0.2 Build log ( /home/builder/.cabal/logs/gitlib-3.0.2.log ): cabal: Entering directory '/tmp/cabal-tmp-19364/gitlib-3.0.2' Configuring gitlib-3.0.2... Building gitlib-3.0.2... Preprocessing library gitlib-3.0.2... [ 1 of 14] Compiling Git.Utils ( Git/Utils.hs, dist/build/Git/Utils.o ) [ 2 of 14] Compiling Git.Types ( Git/Types.hs, dist/build/Git/Types.o ) Git/Types.hs:143:12: error: • Couldn't match type ‘Oid r0’ with ‘Oid r’ Expected type: Oid r -> n (Oid s) Actual type: Oid r0 -> n (Oid s) NB: ‘Oid’ is a type function, and may not be injective The type variable ‘r0’ is ambiguous • In the ambiguity check for ‘copyOid’ To defer the ambiguity check to use sites, enable AllowAmbiguousTypes In the type signature: copyOid :: (MonadGit r m, MonadGit s n) => Oid r -> n (Oid s) Git/Types.hs:197:19: error: • Could not deduce (MonadGit r m0) from the context: MonadGit r m bound by the type signature for: treeEntryToOid :: MonadGit r m => TreeEntry r -> Oid r at Git/Types.hs:197:19-54 The type variable ‘m0’ is ambiguous • In the ambiguity check for ‘treeEntryToOid’ To defer the ambiguity check to use sites, enable AllowAmbiguousTypes In the type signature: treeEntryToOid :: MonadGit r m => TreeEntry r -> Oid r cabal: Leaving directory '/tmp/cabal-tmp-19364/gitlib-3.0.2' cabal: Error: some packages failed to install: gitlib-3.0.2 failed during the building phase. The exception was: ExitFailure 1 gitlib-test-1.4.0 depends on gitlib-3.0.2 which failed to install.