Resolving dependencies... Configuring atomic-primops-0.8.2... Configuring base-orphans-0.7... Building base-orphans-0.7... Building atomic-primops-0.8.2... Installed atomic-primops-0.8.2 Configuring base-prelude-1.2.0.1... Installed base-orphans-0.7 Configuring bug-1.0.1... Building base-prelude-1.2.0.1... Building bug-1.0.1... Installed base-prelude-1.2.0.1 Configuring cabal-doctest-1.0.6... Installed bug-1.0.1 Configuring cereal-0.5.5.0... Building cabal-doctest-1.0.6... Building cereal-0.5.5.0... Installed cabal-doctest-1.0.6 Configuring generic-random-1.1.0.2... Building generic-random-1.1.0.2... Installed generic-random-1.1.0.2 Configuring semigroups-0.18.4... Installed cereal-0.5.5.0 Configuring th-abstraction-0.2.6.0... Building semigroups-0.18.4... Building th-abstraction-0.2.6.0... Installed semigroups-0.18.4 Configuring transformers-compat-0.6.1.5... Building transformers-compat-0.6.1.5... Installed th-abstraction-0.2.6.0 Configuring vector-th-unbox-0.2.1.6... Building vector-th-unbox-0.2.1.6... Installed transformers-compat-0.6.1.5 Configuring unagi-chan-0.4.1.0... Building unagi-chan-0.4.1.0... Installed vector-th-unbox-0.2.1.6 Configuring vector-builder-0.3.4.1... Building vector-builder-0.3.4.1... Installed vector-builder-0.3.4.1 Configuring tagged-0.8.5... Building tagged-0.8.5... Installed unagi-chan-0.4.1.0 Configuring contravariant-1.4.1... Building contravariant-1.4.1... Installed tagged-0.8.5 Configuring math-functions-0.2.1.0... Building math-functions-0.2.1.0... Installed contravariant-1.4.1 Configuring distributive-0.5.3... Building distributive-0.5.3... Installed distributive-0.5.3 Configuring comonad-5.0.3... Installed math-functions-0.2.1.0 Configuring mwc-random-0.13.6.0... Building comonad-5.0.3... Building mwc-random-0.13.6.0... Installed comonad-5.0.3 Configuring bifunctors-5.5.2... Building bifunctors-5.5.2... Installed mwc-random-0.13.6.0 Installed bifunctors-5.5.2 Configuring profunctors-5.2.2... Building profunctors-5.2.2... Installed profunctors-5.2.2 Configuring ptr-0.16.4... Configuring potoki-core-1.5.2... Building potoki-core-1.5.2... Building ptr-0.16.4... Installed potoki-core-1.5.2 Configuring foldl-1.3.7... Building foldl-1.3.7... Installed ptr-0.16.4 Installed foldl-1.3.7 Configuring timestamp-0.1.1... Configuring potoki-0.11.2... Building timestamp-0.1.1... Building potoki-0.11.2... Failed to install timestamp-0.1.1 Build log ( /home/builder/.cabal/logs/ghc-8.2.2/timestamp-0.1.1-16SZrpjhWLP1lplHi15CBu.log ): cabal: Entering directory '/tmp/cabal-tmp-27916/timestamp-0.1.1' Configuring timestamp-0.1.1... Preprocessing library for timestamp-0.1.1.. Building library for timestamp-0.1.1.. library/Timestamp/Foldls.hs:4:8: error: File name does not match module name: Saw: ‘Timestamp.Foldl’ Expected: ‘Timestamp.Foldls’ | 4 | module Timestamp.Foldl | ^^^^^^^^^^^^^^^ cabal: Leaving directory '/tmp/cabal-tmp-27916/timestamp-0.1.1' Installed potoki-0.11.2 cabal: Error: some packages failed to install: eternity-timestamped-0.4-2rbI502QCCCCNZP2ZqBrcy depends on eternity-timestamped-0.4 which failed to install. timestamp-0.1.1-16SZrpjhWLP1lplHi15CBu failed during the building phase. The exception was: ExitFailure 1