Resolving dependencies... Configuring base-orphans-0.5.4... Configuring base-compat-0.9.1... Building base-orphans-0.5.4... Building base-compat-0.9.1... Configuring dlist-0.8.0.2... Installed base-orphans-0.5.4 Building dlist-0.8.0.2... Configuring base-prelude-1.0.1.1... Installed base-compat-0.9.1 Building base-prelude-1.0.1.1... Configuring fail-4.9.0.0... Installed dlist-0.8.0.2 Building fail-4.9.0.0... Configuring mtl-2.2.1... Installed fail-4.9.0.0 Configuring parallel-3.2.1.0... Installed base-prelude-1.0.1.1 Building mtl-2.2.1... Building parallel-3.2.1.0... Configuring integer-logarithms-1.0.1... Installed parallel-3.2.1.0 Building integer-logarithms-1.0.1... Configuring primitive-0.6.1.0... Installed mtl-2.2.1 Building primitive-0.6.1.0... Configuring random-1.1... Installed integer-logarithms-1.0.1 Building random-1.1... Configuring reflection-2.1.2... Installed random-1.1 Configuring safe-0.3.11... Installed primitive-0.6.1.0 Building reflection-2.1.2... Building safe-0.3.11... Configuring prelude-extras-0.4.0.3... Installed safe-0.3.11 Building prelude-extras-0.4.0.3... Configuring semigroups-0.18.2... Installed reflection-2.1.2 Building semigroups-0.18.2... Configuring stm-2.4.4.1... Installed prelude-extras-0.4.0.3 Building stm-2.4.4.1... Configuring time-locale-compat-0.1.1.3... Installed semigroups-0.18.2 Building time-locale-compat-0.1.1.3... Configuring text-1.2.2.1... Installed time-locale-compat-0.1.1.3 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... Installed transformers-compat-0.5.1.4 Configuring StateVar-1.1.0.4... Building StateVar-1.1.0.4... Configuring async-2.1.1... Installed StateVar-1.1.0.4 Building async-2.1.1... Configuring MonadRandom-0.5... Installed async-2.1.1 Building MonadRandom-0.5... Configuring vector-0.11.0.0... Installed MonadRandom-0.5 Building vector-0.11.0.0... Configuring exceptions-0.8.3... Installed text-1.2.2.1 Building exceptions-0.8.3... Configuring mmorph-1.0.9... Installed exceptions-0.8.3 Building mmorph-1.0.9... Configuring tagged-0.8.5... Installed mmorph-1.0.9 Building tagged-0.8.5... Configuring transformers-base-0.4.4... Installed tagged-0.8.5 Building transformers-base-0.4.4... Installed transformers-base-0.4.4 Configuring hashable-1.2.5.0... Building hashable-1.2.5.0... Configuring protolude-0.1.10... Installed hashable-1.2.5.0 Building protolude-0.1.10... Configuring distributive-0.5.1... Installed vector-0.11.0.0 Configuring string-conv-0.1.2... Installed protolude-0.1.10 Building string-conv-0.1.2... Configuring monad-control-1.0.1.0... Installed string-conv-0.1.2 Building distributive-0.5.1... Building monad-control-1.0.1.0... Installed monad-control-1.0.1.0 Configuring unordered-containers-0.2.7.2... Configuring scientific-0.3.4.10... Installed distributive-0.5.1 Building unordered-containers-0.2.7.2... Building scientific-0.3.4.10... Configuring void-0.7.1... Installed scientific-0.3.4.10 Building void-0.7.1... Configuring list-t-1... Installed void-0.7.1 Building list-t-1... Installed unordered-containers-0.2.7.2 Configuring contravariant-1.4... Building contravariant-1.4... Configuring witherable-0.1.3.3... Installed list-t-1 Building witherable-0.1.3.3... Configuring attoparsec-0.13.1.0... Installed contravariant-1.4 Building attoparsec-0.13.1.0... Installed witherable-0.1.3.3 Configuring comonad-5... Building comonad-5... Installed attoparsec-0.13.1.0 Configuring aeson-1.0.2.1... Building aeson-1.0.2.1... Installed comonad-5 Configuring bifunctors-5.4.1... Building bifunctors-5.4.1... Installed bifunctors-5.4.1 Configuring semigroupoids-5.1... Building semigroupoids-5.1... Configuring profunctors-5.2... Installed aeson-1.0.2.1 Building profunctors-5.2... Installed semigroupoids-5.1 Installed profunctors-5.2 Configuring free-4.12.4... Building free-4.12.4... Installed free-4.12.4 Configuring adjunctions-4.3... Building adjunctions-4.3... Installed adjunctions-4.3 Configuring kan-extensions-5.0.1... Building kan-extensions-5.0.1... Installed kan-extensions-5.0.1 Configuring lens-4.14... Building lens-4.14... Installed lens-4.14 Configuring interlude-l-0.1.0.8... Building interlude-l-0.1.0.8... Failed to install interlude-l-0.1.0.8 Build log ( /home/builder/.cabal/logs/interlude-l-0.1.0.8.log ): cabal: Entering directory '/tmp/cabal-tmp-1496/interlude-l-0.1.0.8' Configuring interlude-l-0.1.0.8... Building interlude-l-0.1.0.8... Preprocessing library interlude-l-0.1.0.8... [1 of 1] Compiling Interlude ( src/Interlude.hs, dist/build/Interlude.o ) src/Interlude.hs:4:20: error: Conflicting exports for ‘<$!>’: ‘module X’ exports ‘X.<$!>’ imported from ‘Protolude’ at src/Interlude.hs:(8,1)-(9,82) (and originally defined in ‘Monad’) ‘module X’ exports ‘X.<$!>’ imported from ‘Control.Monad.Random’ at src/Interlude.hs:25:1-32 (and originally defined in ‘Control.Monad’) cabal: Leaving directory '/tmp/cabal-tmp-1496/interlude-l-0.1.0.8' cabal: Error: some packages failed to install: interlude-l-0.1.0.8 failed during the building phase. The exception was: ExitFailure 1 simple-effects-0.7.0.0 depends on interlude-l-0.1.0.8 which failed to install.