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 ghc-paths-0.1.0.12 Starting colour-2.3.5 Starting integer-logarithms-1.0.3 Starting hashable-1.3.0.0 Building colour-2.3.5 Building integer-logarithms-1.0.3 Building hashable-1.3.0.0 Completed integer-logarithms-1.0.3 Starting parser-combinators-1.2.1 Building parser-combinators-1.2.1 Building ghc-paths-0.1.0.12 Completed hashable-1.3.0.0 Starting primitive-0.7.0.0 Building primitive-0.7.0.0 Completed ghc-paths-0.1.0.12 Starting random-1.1 Completed parser-combinators-1.2.1 Starting regex-base-0.94.0.0 Building random-1.1 Building regex-base-0.94.0.0 Completed colour-2.3.5 Starting split-0.2.3.3 Building split-0.2.3.3 Completed regex-base-0.94.0.0 Starting transformers-compat-0.6.5 Completed random-1.1 Starting unordered-containers-0.2.10.0 Building transformers-compat-0.6.5 Building unordered-containers-0.2.10.0 Completed split-0.2.3.3 Starting case-insensitive-1.2.1.0 Building case-insensitive-1.2.1.0 Completed case-insensitive-1.2.1.0 Starting ansi-terminal-0.10.1 Completed transformers-compat-0.6.5 Starting regex-tdfa-1.3.0 Building ansi-terminal-0.10.1 Building regex-tdfa-1.3.0 Completed ansi-terminal-0.10.1 Starting ansi-wl-pprint-0.6.9 Building ansi-wl-pprint-0.6.9 Completed primitive-0.7.0.0 Starting vector-0.12.0.3 Building vector-0.12.0.3 Completed unordered-containers-0.2.10.0 Starting scientific-0.3.6.2 Building scientific-0.3.6.2 Completed ansi-wl-pprint-0.6.9 Starting optparse-applicative-0.15.1.0 Building optparse-applicative-0.15.1.0 Completed scientific-0.3.6.2 Starting megaparsec-8.0.0 Building megaparsec-8.0.0 Completed optparse-applicative-0.15.1.0 Completed regex-tdfa-1.3.0 Completed megaparsec-8.0.0 Completed vector-0.12.0.3 Starting egison-3.9.2 Building egison-3.9.2 Failed to install egison-3.9.2 Build log ( /home/builder/.cabal/logs/ghc-8.6.3/egison-3.9.2-3KbdU6VM20K1GVXpGgtYtP.log ): cabal: Entering directory '/tmp/cabal-tmp-10971/egison-3.9.2' Configuring egison-3.9.2... Preprocessing library for egison-3.9.2.. cabal: can't find source for Language/Egison/Lexer in hs-src, dist/build/autogen, dist/build/global-autogen cabal: Leaving directory '/tmp/cabal-tmp-10971/egison-3.9.2' cabal: Error: some packages failed to install: egison-3.9.2-3KbdU6VM20K1GVXpGgtYtP failed during the building phase. The exception was: ExitFailure 1