Resolving dependencies... Configuring Only-0.1... Configuring base-compat-0.10.2... Building Only-0.1... Building base-compat-0.10.2... Installed Only-0.1 Configuring base16-bytestring-0.1.1.6... Building base16-bytestring-0.1.1.6... Installed base16-bytestring-0.1.1.6 Configuring dlist-0.8.0.4... Building dlist-0.8.0.4... Installed base-compat-0.10.2 Configuring hashable-1.2.7.0... Installed dlist-0.8.0.4 Configuring integer-logarithms-1.0.2.1... Building hashable-1.2.7.0... Building integer-logarithms-1.0.2.1... Installed integer-logarithms-1.0.2.1 Configuring primitive-0.6.4.0... Building primitive-0.6.4.0... Installed hashable-1.2.7.0 Configuring random-1.1... Building random-1.1... Installed random-1.1 Configuring th-abstraction-0.2.8.0... Building th-abstraction-0.2.8.0... Installed th-abstraction-0.2.8.0 Configuring time-locale-compat-0.1.1.4... Building time-locale-compat-0.1.1.4... Installed time-locale-compat-0.1.1.4 Configuring transformers-compat-0.6.2... Building transformers-compat-0.6.2... Installed primitive-0.6.4.0 Configuring bitcoin-script-0.11.1... Building bitcoin-script-0.11.1... Installed transformers-compat-0.6.2 Configuring unordered-containers-0.2.9.0... Building unordered-containers-0.2.9.0... Installed bitcoin-script-0.11.1 Configuring text-short-0.1.2... Building text-short-0.1.2... Installed text-short-0.1.2 Configuring uuid-types-1.0.3... Building uuid-types-1.0.3... Installed unordered-containers-0.2.9.0 Configuring vector-0.12.0.1... Building vector-0.12.0.1... Installed uuid-types-1.0.3 Configuring scientific-0.3.6.2... Building scientific-0.3.6.2... Installed scientific-0.3.6.2 Configuring tagged-0.8.5... Building tagged-0.8.5... Installed tagged-0.8.5 Configuring attoparsec-0.13.2.2... Building attoparsec-0.13.2.2... Installed attoparsec-0.13.2.2 Installed vector-0.12.0.1 Configuring cassava-0.5.1.0... Configuring aeson-1.4.0.0... Building cassava-0.5.1.0... Building aeson-1.4.0.0... Failed to install aeson-1.4.0.0 Build log ( /home/builder/.cabal/logs/ghc-8.4.3/aeson-1.4.0.0-3Zk8MAOJCQB8i8k0PUX7j4.log ): cabal: Entering directory '/tmp/cabal-tmp-4436/aeson-1.4.0.0' Configuring aeson-1.4.0.0... Preprocessing library for aeson-1.4.0.0.. Building library for aeson-1.4.0.0.. [ 1 of 24] Compiling Data.Aeson.Compat ( Data/Aeson/Compat.hs, dist/build/Data/Aeson/Compat.o ) [ 2 of 24] Compiling Data.Aeson.Internal.Functions ( Data/Aeson/Internal/Functions.hs, dist/build/Data/Aeson/Internal/Functions.o ) [ 3 of 24] Compiling Data.Aeson.Parser.UnescapePure ( pure/Data/Aeson/Parser/UnescapePure.hs, dist/build/Data/Aeson/Parser/UnescapePure.o ) [ 4 of 24] Compiling Data.Aeson.Parser.Unescape ( Data/Aeson/Parser/Unescape.hs, dist/build/Data/Aeson/Parser/Unescape.o ) [ 5 of 24] Compiling Data.Aeson.Types.Generic ( Data/Aeson/Types/Generic.hs, dist/build/Data/Aeson/Types/Generic.o ) Data/Aeson/Types/Generic.hs:28:7: warning: [-Wdodgy-exports] The export item ‘IsRecord(..)’ suggests that ‘IsRecord’ has (in-scope) constructors or class methods, but it has none | 28 | IsRecord(..) | ^^^^^^^^^^^^ [ 6 of 24] Compiling Data.Aeson.Types.Internal ( Data/Aeson/Types/Internal.hs, dist/build/Data/Aeson/Types/Internal.o ) [ 7 of 24] Compiling Data.Aeson.Parser.Internal ( Data/Aeson/Parser/Internal.hs, dist/build/Data/Aeson/Parser/Internal.o ) [ 8 of 24] Compiling Data.Aeson.Parser ( Data/Aeson/Parser.hs, dist/build/Data/Aeson/Parser.o ) [ 9 of 24] Compiling Data.Attoparsec.Time.Internal ( attoparsec-iso8601/Data/Attoparsec/Time/Internal.hs, dist/build/Data/Attoparsec/Time/Internal.o ) [10 of 24] Compiling Data.Attoparsec.Time ( attoparsec-iso8601/Data/Attoparsec/Time.hs, dist/build/Data/Attoparsec/Time.o ) attoparsec-iso8601/Data/Attoparsec/Time.hs:56:26: error: • Couldn't match expected type ‘Data.Attoparsec.Internal.Types.Parser T.Text Int’ with actual type ‘Int’ • In the second argument of ‘(+)’, namely ‘c2d b’ In a stmt of a 'do' block: return $! c2d a * 10 + c2d b In the expression: do a <- digit b <- digit let c2d c = ord c .&. 15 return $! c2d a * 10 + c2d b | 56 | return $! c2d a * 10 + c2d b | ^^^^^ cabal: Leaving directory '/tmp/cabal-tmp-4436/aeson-1.4.0.0' Installed cassava-0.5.1.0 cabal: Error: some packages failed to install: aeson-1.4.0.0-3Zk8MAOJCQB8i8k0PUX7j4 failed during the building phase. The exception was: ExitFailure 1 burnt-explorer-2.0.0-Abyal7CwrCNIWYbcYJiNnc depends on burnt-explorer-2.0.0 which failed to install.