Resolving dependencies... Configuring auto-update-0.1.4... Configuring base16-bytestring-0.1.1.6... Building auto-update-0.1.4... Building base16-bytestring-0.1.1.6... Installed base16-bytestring-0.1.1.6 Configuring bindings-DSL-1.0.23... Configuring easy-file-0.2.1... Installed auto-update-0.1.4 Building bindings-DSL-1.0.23... Building easy-file-0.2.1... Configuring bytestring-builder-0.10.8.1.0... Installed bindings-DSL-1.0.23 Building bytestring-builder-0.10.8.1.0... Configuring failure-0.2.0.3... Installed bytestring-builder-0.10.8.1.0 Configuring monad-loops-0.4.3... Installed easy-file-0.2.1 Building failure-0.2.0.3... Building monad-loops-0.4.3... Configuring missing-foreign-0.1.1... Installed failure-0.2.0.3 Building missing-foreign-0.1.1... Configuring network-2.6.3.1... Installed monad-loops-0.4.3 Configuring mtl-2.2.1... Installed missing-foreign-0.1.1 Building mtl-2.2.1... Building network-2.6.3.1... Configuring old-locale-1.0.0.7... Installed mtl-2.2.1 Building old-locale-1.0.0.7... Configuring primitive-0.6.2.0... Installed old-locale-1.0.0.7 Building primitive-0.6.2.0... Configuring random-1.1... Installed network-2.6.3.1 Building random-1.1... Configuring semigroups-0.18.2... Installed random-1.1 Configuring stm-2.4.4.1... Installed primitive-0.6.2.0 Building semigroups-0.18.2... Building stm-2.4.4.1... Configuring text-1.2.2.1... Installed semigroups-0.18.2 Building text-1.2.2.1... Configuring transformers-compat-0.5.1.4... Installed stm-2.4.4.1 Building transformers-compat-0.5.1.4... Configuring zlib-0.6.1.2... Installed transformers-compat-0.5.1.4 Building zlib-0.6.1.2... Installed zlib-0.6.1.2 Configuring old-time-1.1.0.3... Building old-time-1.1.0.3... Installed old-time-1.1.0.3 Configuring stm-chans-3.0.0.4... Configuring exceptions-0.8.3... Installed text-1.2.2.1 Building exceptions-0.8.3... Building stm-chans-3.0.0.4... Configuring async-2.1.1... Installed stm-chans-3.0.0.4 Building async-2.1.1... Configuring mmorph-1.0.9... Installed exceptions-0.8.3 Building mmorph-1.0.9... Configuring tagged-0.8.5... Installed async-2.1.1 Building tagged-0.8.5... Configuring transformers-base-0.4.4... Installed mmorph-1.0.9 Building transformers-base-0.4.4... Configuring hlibgit2-0.18.0.15... Installed transformers-base-0.4.4 Installed tagged-0.8.5 Configuring unix-time-0.3.7... Building unix-time-0.3.7... Building hlibgit2-0.18.0.15... Configuring blaze-builder-0.4.0.2... Installed unix-time-0.3.7 Building blaze-builder-0.4.0.2... Configuring attoparsec-0.10.4.0... Installed blaze-builder-0.4.0.2 Building attoparsec-0.10.4.0... Configuring hashable-1.2.4.0... Installed attoparsec-0.10.4.0 Building hashable-1.2.4.0... Configuring text-icu-0.7.0.1... Installed hashable-1.2.4.0 Building text-icu-0.7.0.1... Configuring monad-control-1.0.1.0... Installed text-icu-0.7.0.1 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... Configuring streaming-commons-0.1.16... Installed fast-logger-2.4.7 Building streaming-commons-0.1.16... Configuring constraints-0.8... Installed streaming-commons-0.1.16 Building constraints-0.8... Configuring unordered-containers-0.2.7.1... Installed constraints-0.8 Building unordered-containers-0.2.7.1... Configuring lifted-base-0.2.3.8... Installed unordered-containers-0.2.7.1 Building lifted-base-0.2.3.8... Installed lifted-base-0.2.3.8 Configuring resourcet-1.1.8.1... Building resourcet-1.1.8.1... Configuring lifted-async-0.9.0... Installed hlibgit2-0.18.0.15 Building lifted-async-0.9.0... Installed resourcet-1.1.8.1 Configuring conduit-1.2.8... Building conduit-1.2.8... Installed lifted-async-0.9.0 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-23739/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-23739/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-libgit2-2.2.0.1 depends on gitlib-3.0.2 which failed to install.