Warning: The install command is a part of the legacy v1 style of cabal usage. Please switch to using either the new project style and the new-install command or the legacy v1-install alias as new-style projects will become the default in the next version of cabal-install. Please file a bug if you cannot replicate a working v1- use case with the new-style commands. For more information, see: https://wiki.haskell.org/Cabal/NewBuild Resolving dependencies... Starting auto-update-0.1.4 Starting base16-bytestring-0.1.1.6 Starting bindings-DSL-1.0.25 Starting base-orphans-0.8 Building auto-update-0.1.4 Building base-orphans-0.8 Building bindings-DSL-1.0.25 Building base16-bytestring-0.1.1.6 Completed bindings-DSL-1.0.25 Starting cereal-0.5.8.0 Completed base-orphans-0.8 Starting conduit-combinators-1.3.0 Completed base16-bytestring-0.1.1.6 Starting easy-file-0.2.2 Building cereal-0.5.8.0 Completed auto-update-0.1.4 Starting hashable-1.2.7.0 Building conduit-combinators-1.3.0 Building easy-file-0.2.2 Building hashable-1.2.7.0 Completed conduit-combinators-1.3.0 Starting integer-logarithms-1.0.2.2 Building integer-logarithms-1.0.2.2 Completed easy-file-0.2.2 Starting monad-loops-0.4.3 Building monad-loops-0.4.3 Completed integer-logarithms-1.0.2.2 Starting network-3.0.0.1 Completed hashable-1.2.7.0 Starting old-locale-1.0.0.7 Building old-locale-1.0.0.7 Completed monad-loops-0.4.3 Starting primitive-0.6.4.0 Building primitive-0.6.4.0 Completed old-locale-1.0.0.7 Starting random-1.1 Building random-1.1 Completed cereal-0.5.8.0 Starting semigroups-0.18.5 Building network-3.0.0.1 Building semigroups-0.18.5 Completed semigroups-0.18.5 Starting split-0.2.3.3 Building split-0.2.3.3 Completed random-1.1 Starting stm-chans-3.0.0.4 Completed split-0.2.3.3 Starting tagged-0.8.6 Building tagged-0.8.6 Building stm-chans-3.0.0.4 Completed tagged-0.8.6 Starting text-icu-0.7.0.1 Completed network-3.0.0.1 Starting transformers-compat-0.6.2 Building text-icu-0.7.0.1 Building transformers-compat-0.6.2 Completed stm-chans-3.0.0.4 Starting unix-compat-0.5.1 Building unix-compat-0.5.1 Completed primitive-0.6.4.0 Starting unliftio-core-0.1.2.0 Completed unix-compat-0.5.1 Starting zlib-0.6.2 Completed transformers-compat-0.6.2 Starting unordered-containers-0.2.10.0 Building unliftio-core-0.1.2.0 Building zlib-0.6.2 Building unordered-containers-0.2.10.0 Completed unliftio-core-0.1.2.0 Starting async-2.2.1 Building async-2.2.1 Completed async-2.2.1 Starting old-time-1.1.0.3 Completed zlib-0.6.2 Starting vector-0.12.0.2 Building vector-0.12.0.2 Building old-time-1.1.0.3 Completed text-icu-0.7.0.1 Starting scientific-0.3.6.2 Building scientific-0.3.6.2 Completed unordered-containers-0.2.10.0 Starting transformers-base-0.4.5.2 Completed old-time-1.1.0.3 Starting mmorph-1.1.2 Building transformers-base-0.4.5.2 Building mmorph-1.1.2 Completed scientific-0.3.6.2 Starting exceptions-0.10.0 Completed transformers-base-0.4.5.2 Starting unliftio-0.2.10 Building exceptions-0.10.0 Building unliftio-0.2.10 Completed mmorph-1.1.2 Starting typed-process-0.2.4.0 Building typed-process-0.2.4.0 Completed typed-process-0.2.4.0 Starting streaming-commons-0.2.1.0 Completed exceptions-0.10.0 Downloading hlibgit2-0.18.0.16 Downloaded hlibgit2-0.18.0.16 Starting hlibgit2-0.18.0.16 Building streaming-commons-0.2.1.0 Failed to install hlibgit2-0.18.0.16 Build log ( /home/builder/.cabal/logs/ghc-8.6.3/hlibgit2-0.18.0.16-JimEZOq1wHLAyXr45nNCi.log ): cabal: Entering directory '/tmp/cabal-tmp-16785/hlibgit2-0.18.0.16' cabal: Leaving directory '/tmp/cabal-tmp-16785/hlibgit2-0.18.0.16' Starting unix-time-0.4.5 Building unix-time-0.4.5 Completed unliftio-0.2.10 Completed unix-time-0.4.5 Completed streaming-commons-0.2.1.0 Completed vector-0.12.0.2 cabal: Error: some packages failed to install: gitlib-libgit2-3.1.2.1-KNwVSaB6t6nLuLEny5QV6X depends on gitlib-libgit2-3.1.2.1 which failed to install. hlibgit2-0.18.0.16-JimEZOq1wHLAyXr45nNCi failed during the configure step. The exception was: dieVerbatim: user error (cabal: '/opt/ghc/bin/ghc' exited with an error: Loaded package environment from /home/builder/hackage-server/.ghc.environment.x86_64-linux-8.6.3 /tmp/cabal-tmp-16785/hlibgit2-0.18.0.16/dist/setup/setup.hs:1:1: error: Ambiguous module name ‘Distribution.Simple’: it was found in multiple packages: Cabal-2.4.0.1 Cabal-2.4.1.0 | 1 | import Distribution.Simple | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ /tmp/cabal-tmp-16785/hlibgit2-0.18.0.16/dist/setup/setup.hs:2:1: error: Ambiguous module name ‘Distribution.Simple.Program’: it was found in multiple packages: Cabal-2.4.0.1 Cabal-2.4.1.0 | 2 | import Distribution.Simple.Program | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ )