Resolving dependencies... Configuring base-compat-0.9.3... Configuring base-orphans-0.6... Building base-compat-0.9.3... Building base-orphans-0.6... Installed base-orphans-0.6 Configuring byteable-0.1.1... Building byteable-0.1.1... Configuring cabal-doctest-1.0.2... Installed base-compat-0.9.3 Building cabal-doctest-1.0.2... Configuring data-binary-ieee754-0.4.4... Installed byteable-0.1.1 Building data-binary-ieee754-0.4.4... Configuring dlist-0.8.0.3... Installed cabal-doctest-1.0.2 Configuring fail-4.9.0.0... Installed data-binary-ieee754-0.4.4 Building dlist-0.8.0.3... Building fail-4.9.0.0... Configuring call-stack-0.1.0... Installed fail-4.9.0.0 Building call-stack-0.1.0... Configuring generics-sop-0.3.1.0... Installed call-stack-0.1.0 Configuring foundation-0.0.13... Installed dlist-0.8.0.3 Building generics-sop-0.3.1.0... Building foundation-0.0.13... Configuring mtl-2.2.1... Installed generics-sop-0.3.1.0 Building mtl-2.2.1... Configuring network-2.6.3.2... Installed mtl-2.2.1 Building network-2.6.3.2... Configuring integer-logarithms-1.0.2... Installed network-2.6.3.2 Building integer-logarithms-1.0.2... Configuring prelude-extras-0.4.0.3... Installed integer-logarithms-1.0.2 Building prelude-extras-0.4.0.3... Configuring primitive-0.6.2.0... Installed foundation-0.0.13 Configuring parallel-3.2.1.1... Installed prelude-extras-0.4.0.3 Building primitive-0.6.2.0... Building parallel-3.2.1.1... Configuring random-1.1... Installed parallel-3.2.1.1 Building random-1.1... Configuring safe-0.3.15... Installed random-1.1 Building safe-0.3.15... Configuring semigroups-0.18.3... Installed primitive-0.6.2.0 Building semigroups-0.18.3... Configuring reflection-2.1.2... Installed semigroups-0.18.3 Building reflection-2.1.2... Configuring stm-2.4.4.1... Installed safe-0.3.15 Building stm-2.4.4.1... Configuring th-abstraction-0.2.5.0... Installed stm-2.4.4.1 Building th-abstraction-0.2.5.0... Configuring time-locale-compat-0.1.1.3... Installed reflection-2.1.2 Building time-locale-compat-0.1.1.3... Configuring text-1.2.2.2... Installed time-locale-compat-0.1.1.3 Building text-1.2.2.2... Configuring transformers-compat-0.5.1.4... Installed th-abstraction-0.2.5.0 Building transformers-compat-0.5.1.4... Configuring void-0.7.2... Installed transformers-compat-0.5.1.4 Building void-0.7.2... Configuring utf8-string-1.0.1.1... Installed void-0.7.2 Building utf8-string-1.0.1.1... Installed utf8-string-1.0.1.1 Configuring memory-0.14.6... Building memory-0.14.6... Configuring StateVar-1.1.0.4... Installed text-1.2.2.2 Building StateVar-1.1.0.4... Configuring vector-0.12.0.1... Installed memory-0.14.6 Building vector-0.12.0.1... Configuring tagged-0.8.5... Installed StateVar-1.1.0.4 Building tagged-0.8.5... Configuring exceptions-0.8.3... Installed tagged-0.8.5 Building exceptions-0.8.3... Installed exceptions-0.8.3 Configuring hashable-1.2.6.1... Building hashable-1.2.6.1... Configuring contravariant-1.4... Installed hashable-1.2.6.1 Building contravariant-1.4... Configuring cryptonite-0.24... Installed contravariant-1.4 Building cryptonite-0.24... Configuring distributive-0.5.3... Installed vector-0.12.0.1 Building distributive-0.5.3... Warning: /tmp/pkgConf-distributive-0.513732263401631518149.3: Unrecognized field dynamic-library-dirs on line 22 Installed distributive-0.5.3 Configuring case-insensitive-1.2.0.10... Building case-insensitive-1.2.0.10... Installed case-insensitive-1.2.0.10 Configuring unordered-containers-0.2.8.0... Building unordered-containers-0.2.8.0... Configuring scientific-0.3.5.1... Installed unordered-containers-0.2.8.0 Building scientific-0.3.5.1... Configuring uuid-types-1.0.3... Installed scientific-0.3.5.1 Building uuid-types-1.0.3... Installed uuid-types-1.0.3 Configuring comonad-5.0.2... Building comonad-5.0.2... Warning: /tmp/pkgConf-comonad-5.0350322227841148365.2: Unrecognized field dynamic-library-dirs on line 29 Installed comonad-5.0.2 Configuring http-media-0.7.1.1... Building http-media-0.7.1.1... Installed http-media-0.7.1.1 Configuring attoparsec-0.13.2.0... Building attoparsec-0.13.2.0... Configuring bifunctors-5.4.2... Installed cryptonite-0.24 Building bifunctors-5.4.2... Installed attoparsec-0.13.2.0 Configuring cryptohash-0.11.9... Building cryptohash-0.11.9... Configuring aeson-1.2.1.0... Installed bifunctors-5.4.2 Building aeson-1.2.1.0... Installed cryptohash-0.11.9 Configuring profunctors-5.2.1... Building profunctors-5.2.1... Configuring semigroupoids-5.2.1... Installed profunctors-5.2.1 Building semigroupoids-5.2.1... Configuring bson-0.3.2.3... Installed aeson-1.2.1.0 Building bson-0.3.2.3... Warning: /tmp/pkgConf-semigroupoids-5.21395235128532670688.1: Unrecognized field dynamic-library-dirs on line 60 Installed semigroupoids-5.2.1 Configuring free-4.12.4... Building free-4.12.4... Installed bson-0.3.2.3 Installed free-4.12.4 Configuring adjunctions-4.3... Building adjunctions-4.3... Installed adjunctions-4.3 Configuring kan-extensions-5.0.2... Building kan-extensions-5.0.2... Installed kan-extensions-5.0.2 Configuring lens-4.15.4... Building lens-4.15.4... Warning: /tmp/pkgConf-lens-4.157223085421820388464.4: Unrecognized field dynamic-library-dirs on line 122 Installed lens-4.15.4 Configuring insert-ordered-containers-0.2.1.0... Building insert-ordered-containers-0.2.1.0... Installed insert-ordered-containers-0.2.1.0 Configuring swagger2-2.1.4.1... Building swagger2-2.1.4.1... Warning: /tmp/pkgConf-swagger2-2.1.41529195746392035568.1: Unrecognized field dynamic-library-dirs on line 30 Installed swagger2-2.1.4.1 Configuring currency-codes-1.0.0.1... Building currency-codes-1.0.0.1... Failed to install currency-codes-1.0.0.1 Build log ( /home/builder/.cabal/logs/currency-codes-1.0.0.1.log ): cabal: Entering directory '/tmp/cabal-tmp-30552/currency-codes-1.0.0.1' Configuring currency-codes-1.0.0.1... Building currency-codes-1.0.0.1... Preprocessing library currency-codes-1.0.0.1... [1 of 1] Compiling Data.Currency ( src/Data/Currency.hs, dist/build/Data/Currency.o ) src/Data/Currency.hs:272:3: error: • Couldn't match type ‘Alpha’ with ‘Currency’ Expected type: [Currency] -> Maybe Currency Actual type: [Alpha] -> Maybe Alpha • In the expression: Safe.headMay . filter (== α) In an equation for ‘fromAlpha’: fromAlpha α = Safe.headMay . filter (== α) cabal: Leaving directory '/tmp/cabal-tmp-30552/currency-codes-1.0.0.1' cabal: Error: some packages failed to install: currency-codes-1.0.0.1 failed during the building phase. The exception was: ExitFailure 1