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 colour-2.3.4 Starting hashable-1.2.7.0 Building colour-2.3.4 Building hashable-1.2.7.0 Completed hashable-1.2.7.0 Starting haskell-lexer-1.0.2 Building haskell-lexer-1.0.2 Completed colour-2.3.4 Starting integer-logarithms-1.0.2.2 Building integer-logarithms-1.0.2.2 Completed integer-logarithms-1.0.2.2 Starting parser-combinators-1.0.0 Building parser-combinators-1.0.0 Completed parser-combinators-1.0.0 Starting primitive-0.6.4.0 Building primitive-0.6.4.0 Completed haskell-lexer-1.0.2 Starting transformers-compat-0.6.2 Building transformers-compat-0.6.2 Completed primitive-0.6.4.0 Starting unordered-containers-0.2.9.0 Building unordered-containers-0.2.9.0 Completed transformers-compat-0.6.2 Starting case-insensitive-1.2.0.11 Building case-insensitive-1.2.0.11 Completed case-insensitive-1.2.0.11 Starting ansi-terminal-0.8.2 Building ansi-terminal-0.8.2 Completed ansi-terminal-0.8.2 Starting pretty-show-1.9.1 Completed unordered-containers-0.2.9.0 Starting scientific-0.3.6.2 Building pretty-show-1.9.1 Building scientific-0.3.6.2 Completed scientific-0.3.6.2 Starting ansi-wl-pprint-0.6.8.2 Building ansi-wl-pprint-0.6.8.2 Completed pretty-show-1.9.1 Starting megaparsec-7.0.3 Building megaparsec-7.0.3 Completed ansi-wl-pprint-0.6.8.2 Starting optparse-applicative-0.14.3.0 Building optparse-applicative-0.14.3.0 Completed optparse-applicative-0.14.3.0 Completed megaparsec-7.0.3 Starting hasktorch-codegen-0.0.1.0 Building hasktorch-codegen-0.0.1.0 Failed to install hasktorch-codegen-0.0.1.0 Build log ( /home/builder/.cabal/logs/ghc-8.6.1/hasktorch-codegen-0.0.1.0-44W3GrxVBS7H11ohn6AToy.log ): cabal: Entering directory '/tmp/cabal-tmp-3799/hasktorch-codegen-0.0.1.0' Configuring hasktorch-codegen-0.0.1.0... Preprocessing library for hasktorch-codegen-0.0.1.0.. Building library for hasktorch-codegen-0.0.1.0.. [ 1 of 13] Compiling CodeGen.Prelude ( src/CodeGen/Prelude.hs, dist/build/CodeGen/Prelude.o ) [ 2 of 13] Compiling CodeGen.Types.CLI ( src/CodeGen/Types/CLI.hs, dist/build/CodeGen/Types/CLI.o ) [ 3 of 13] Compiling CodeGen.Types.Parsed ( src/CodeGen/Types/Parsed.hs, dist/build/CodeGen/Types/Parsed.o ) [ 4 of 13] Compiling CodeGen.Types.HsOutput ( src/CodeGen/Types/HsOutput.hs, dist/build/CodeGen/Types/HsOutput.o ) [ 5 of 13] Compiling CodeGen.Types ( src/CodeGen/Types.hs, dist/build/CodeGen/Types.o ) [ 6 of 13] Compiling CodeGen.Render.C ( src/CodeGen/Render/C.hs, dist/build/CodeGen/Render/C.o ) [ 7 of 13] Compiling CodeGen.Parse.Cases ( src/CodeGen/Parse/Cases.hs, dist/build/CodeGen/Parse/Cases.o ) [ 8 of 13] Compiling CodeGen.Render.Haskell ( src/CodeGen/Render/Haskell.hs, dist/build/CodeGen/Render/Haskell.o ) [ 9 of 13] Compiling CodeGen.Render.Function ( src/CodeGen/Render/Function.hs, dist/build/CodeGen/Render/Function.o ) [10 of 13] Compiling CodeGen.Parse ( src/CodeGen/Parse.hs, dist/build/CodeGen/Parse.o ) src/CodeGen/Parse.hs:122:62: error: • Variable not in scope: notChar :: Char -> ParsecT Void String Data.Functor.Identity.Identity a3 • Perhaps you meant one of these: ‘getChar’ (imported from CodeGen.Prelude), ‘putChar’ (imported from CodeGen.Prelude) | 122 | <|> try (void (char ',' >> space >> string "//" >> some (notChar '\n') >> eol)) | ^^^^^^^ src/CodeGen/Parse.hs:127:44: error: • Variable not in scope: notChar :: Char -> ParsecT Void String Data.Functor.Identity.Identity a2 • Perhaps you meant one of these: ‘getChar’ (imported from CodeGen.Prelude), ‘putChar’ (imported from CodeGen.Prelude) | 127 | = try (space >> string "//" >> some (notChar '\n') >> eol >> space >> lookAhead (void $ char ')')) | ^^^^^^^ src/CodeGen/Parse.hs:171:25: error: • Variable not in scope: notChar :: Char -> ParsecT Void String Data.Functor.Identity.Identity a1 • Perhaps you meant one of these: ‘getChar’ (imported from CodeGen.Prelude), ‘putChar’ (imported from CodeGen.Prelude) | 171 | void $ eol <|> (some (notChar '\n') >> eol) | ^^^^^^^ src/CodeGen/Parse.hs:194:16: error: • Variable not in scope: notChar :: Char -> ParsecT Void String Data.Functor.Identity.Identity a0 • Perhaps you meant one of these: ‘getChar’ (imported from CodeGen.Prelude), ‘putChar’ (imported from CodeGen.Prelude) | 194 | void $ many (notChar '\n') <* (void eol <|> eof) | ^^^^^^^ cabal: Leaving directory '/tmp/cabal-tmp-3799/hasktorch-codegen-0.0.1.0' cabal: Error: some packages failed to install: hasktorch-codegen-0.0.1.0-44W3GrxVBS7H11ohn6AToy failed during the building phase. The exception was: ExitFailure 1