The build is unreachable.

Build log

> /tmp/stackage-build2456$ stack unpack language-java-0.2.9@sha256:330a0d7f8dc3e8c64bf8c19b928aa9421d5dab1907be576f43d3eb88567acb3a
Unpacked language-java-0.2.9 to /tmp/stackage-build2456/language-java-0.2.9/
> /tmp/stackage-build2456/language-java-0.2.9$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
[1 of 1] Compiling Main             ( Setup.hs, Setup.o )
Linking Setup ...
> /tmp/stackage-build2456/language-java-0.2.9$ ./Setup configure --package-db=clear --package-db=global --package-db=/home/circleci/project/builds/nightly/pkgdb --libdir=/home/circleci/project/builds/nightly/lib --bindir=/home/circleci/project/builds/nightly/bin --datadir=/home/circleci/project/builds/nightly/share --libexecdir=/home/circleci/project/builds/nightly/libexec --sysconfdir=/home/circleci/project/builds/nightly/etc --docdir=/home/circleci/project/builds/nightly/doc/language-java-0.2.9 --htmldir=/home/circleci/project/builds/nightly/doc/language-java-0.2.9 --haddockdir=/home/circleci/project/builds/nightly/doc/language-java-0.2.9
Configuring language-java-0.2.9...
> /tmp/stackage-build2456/language-java-0.2.9$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2456/language-java-0.2.9$ ./Setup build
Preprocessing library for language-java-0.2.9..
Building library for language-java-0.2.9..
[1 of 6] Compiling Language.Java.Lexer ( dist/build/Language/Java/Lexer.hs, dist/build/Language/Java/Lexer.o )

templates/wrappers.hs:450:19: warning: [-Wname-shadowing]
    This binding for ‘pos’ shadows the existing binding
      defined at Language/Java/Lexer.x:251:1
[2 of 6] Compiling Language.Java.Syntax.Exp ( Language/Java/Syntax/Exp.hs, dist/build/Language/Java/Syntax/Exp.o )
[3 of 6] Compiling Language.Java.Syntax.Types ( Language/Java/Syntax/Types.hs, dist/build/Language/Java/Syntax/Types.o )
[4 of 6] Compiling Language.Java.Syntax ( Language/Java/Syntax.hs, dist/build/Language/Java/Syntax.o )
[5 of 6] Compiling Language.Java.Pretty ( Language/Java/Pretty.hs, dist/build/Language/Java/Pretty.o )

Language/Java/Pretty.hs:7:1: warning: [-Wunused-imports]
    The import of ‘Data.List’ is redundant
      except perhaps to import instances from ‘Data.List’
    To import instances alone, use: import Data.List()
  |
7 | import Data.List (intersperse)
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Language/Java/Pretty.hs:52:35: warning: [-Wname-shadowing]
    This binding for ‘id’ shadows the existing binding
      imported from ‘Prelude’ at Language/Java/Pretty.hs:12:1-28
      (and originally defined in ‘GHC.Base’)
   |
52 |   prettyPrec p (InterfaceTypeDecl id) = prettyPrec p id
   |                                   ^^

Language/Java/Pretty.hs:129:37: warning: [-Wname-shadowing]
    This binding for ‘id’ shadows the existing binding
      imported from ‘Prelude’ at Language/Java/Pretty.hs:12:1-28
      (and originally defined in ‘GHC.Base’)
    |
129 |   prettyPrec p (MemberInterfaceDecl id) = prettyPrec p id
    |                                     ^^

Language/Java/Pretty.hs:170:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
170 |   prettyPrec p mod = text . map toLower $ show mod
    |              ^

Language/Java/Pretty.hs:170:16: warning: [-Wname-shadowing]
    This binding for ‘mod’ shadows the existing binding
      imported from ‘Prelude’ at Language/Java/Pretty.hs:12:1-28
      (and originally defined in ‘GHC.Real’)
    |
170 |   prettyPrec p mod = text . map toLower $ show mod
    |                ^^^

Language/Java/Pretty.hs:200:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
200 |   prettyPrec p (IfThen c th) =
    |              ^

Language/Java/Pretty.hs:227:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
227 |   prettyPrec p Empty = semi
    |              ^

Language/Java/Pretty.hs:277:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
277 |   prettyPrec p Default = text "default:"
    |              ^

Language/Java/Pretty.hs:318:37: warning: [-Wname-shadowing]
    This binding for ‘init’ shadows the existing binding
      imported from ‘Prelude’ at Language/Java/Pretty.hs:12:1-28
      (and originally defined in ‘GHC.List’)
    |
318 |   prettyPrec p (ArrayCreateInit t k init) =
    |                                     ^^^^

Language/Java/Pretty.hs:377:34: warning: [-Wname-shadowing]
    This binding for ‘exp’ shadows the existing binding
      imported from ‘Prelude’ at Language/Java/Pretty.hs:12:1-28
      (and originally defined in ‘GHC.Float’)
    |
377 |   prettyPrec p (LambdaExpression exp) = prettyPrec p exp
    |                                  ^^^

Language/Java/Pretty.hs:381:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
381 |   prettyPrec p (Int i) = text (show i)
    |              ^

Language/Java/Pretty.hs:382:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
382 |   prettyPrec p (Word i) = text (show i) <> char 'L'
    |              ^

Language/Java/Pretty.hs:383:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
383 |   prettyPrec p (Float f) = text (show f) <> char 'F'
    |              ^

Language/Java/Pretty.hs:384:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
384 |   prettyPrec p (Double d) = text (show d)
    |              ^

Language/Java/Pretty.hs:385:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
385 |   prettyPrec p (Boolean b) = text . map toLower $ show b
    |              ^

Language/Java/Pretty.hs:386:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
386 |   prettyPrec p (Char c) = quotes $ text (escapeChar c)
    |              ^

Language/Java/Pretty.hs:387:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
387 |   prettyPrec p (String s) = doubleQuotes $ text (concatMap escapeString s)
    |              ^

Language/Java/Pretty.hs:388:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
388 |   prettyPrec p (Null) = text "null"
    |              ^

Language/Java/Pretty.hs:391:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
391 |   prettyPrec p op = text $ case op of
    |              ^

Language/Java/Pretty.hs:413:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
413 |   prettyPrec p aop = text $ case aop of
    |              ^

Language/Java/Pretty.hs:498:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
498 |   prettyPrec p Diamond = text "<>"
    |              ^

Language/Java/Pretty.hs:505:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
505 |   prettyPrec p BooleanT = text "boolean"
    |              ^

Language/Java/Pretty.hs:506:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
506 |   prettyPrec p ByteT    = text "byte"
    |              ^

Language/Java/Pretty.hs:507:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
507 |   prettyPrec p ShortT   = text "short"
    |              ^

Language/Java/Pretty.hs:508:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
508 |   prettyPrec p IntT     = text "int"
    |              ^

Language/Java/Pretty.hs:509:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
509 |   prettyPrec p LongT    = text "long"
    |              ^

Language/Java/Pretty.hs:510:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
510 |   prettyPrec p CharT    = text "char"
    |              ^

Language/Java/Pretty.hs:511:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
511 |   prettyPrec p FloatT   = text "float"
    |              ^

Language/Java/Pretty.hs:512:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
512 |   prettyPrec p DoubleT  = text "double"
    |              ^

Language/Java/Pretty.hs:544:19: warning: [-Wname-shadowing]
    This binding for ‘exp’ shadows the existing binding
      imported from ‘Prelude’ at Language/Java/Pretty.hs:12:1-28
      (and originally defined in ‘GHC.Float’)
    |
544 | ppDefault p (Just exp) = text "default" <+> prettyPrec p exp
    |                   ^^^

Language/Java/Pretty.hs:558:14: warning: [-Wunused-matches]
    Defined but not used: ‘p’
    |
558 |   prettyPrec p (Ident s) = text s
    |              ^

Language/Java/Pretty.hs:564:36: warning: [-Wunused-matches]
    Defined but not used: ‘b’
    |
564 | prettyNestedStmt prio p@(StmtBlock b) = prettyPrec prio p
    |                                    ^
[6 of 6] Compiling Language.Java.Parser ( Language/Java/Parser.hs, dist/build/Language/Java/Parser.o )

Language/Java/Parser.hs:44:1: warning: [-Wdodgy-imports]
    Module ‘Prelude’ does not export ‘catch’
   |
44 | import Prelude hiding ( exp, catch, (>>), (>>=) )
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Language/Java/Parser.hs:47:1: warning: [-Wunused-imports]
    The import of ‘Control.Monad’ is redundant
      except perhaps to import instances from ‘Control.Monad’
    To import instances alone, use: import Control.Monad()
   |
47 | import Control.Monad ( ap )
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^

Language/Java/Parser.hs:74:1: warning: [-Wunused-top-binds]
    Defined but not used: ‘parseCompilationUnit’
   |
74 | parseCompilationUnit inp =
   | ^^^^^^^^^^^^^^^^^^^^

Language/Java/Parser.hs:122:25: warning: [-Wname-shadowing]
    This binding for ‘ms’ shadows the existing binding
      bound at Language/Java/Parser.hs:120:5
    |
122 |               return $ \ms -> ClassTypeDecl (cd ms)) <|>
    |                         ^^

Language/Java/Parser.hs:123:15: warning: [-Wname-shadowing]
    This binding for ‘id’ shadows the existing binding
      imported from ‘Prelude’ at Language/Java/Parser.hs:44:1-49
      (and originally defined in ‘GHC.Base’)
    |
123 |           (do id <- annInterfaceDecl <|> interfaceDecl
    |               ^^

Language/Java/Parser.hs:124:25: warning: [-Wname-shadowing]
    This binding for ‘ms’ shadows the existing binding
      bound at Language/Java/Parser.hs:120:5
    |
124 |               return $ \ms -> InterfaceTypeDecl (id ms))
    |                         ^^

Language/Java/Parser.hs:166:5: warning: [-Wname-shadowing]
    This binding for ‘id’ shadows the existing binding
      imported from ‘Prelude’ at Language/Java/Parser.hs:44:1-49
      (and originally defined in ‘GHC.Base’)
    |
166 |     id  <- ident
    |     ^^

Language/Java/Parser.hs:182:5: warning: [-Wname-shadowing]
    This binding for ‘id’ shadows the existing binding
      imported from ‘Prelude’ at Language/Java/Parser.hs:44:1-49
      (and originally defined in ‘GHC.Base’)
    |
182 |     id  <- ident
    |     ^^

Language/Java/Parser.hs:191:5: warning: [-Wname-shadowing]
    This binding for ‘id’ shadows the existing binding
      imported from ‘Prelude’ at Language/Java/Parser.hs:44:1-49
      (and originally defined in ‘GHC.Base’)
    |
191 |     id  <- ident
    |     ^^

Language/Java/Parser.hs:206:8: warning: [-Wunused-do-bind]
    A do-notation statement discarded a result of type ‘[()]’
    Suppress this warning by saying ‘_ <- list1 semiColon’
    |
206 |        list1 semiColon
    |        ^^^^^^^^^^^^^^^

Language/Java/Parser.hs:222:9: warning: [-Wname-shadowing]
    This binding for ‘id’ shadows the existing binding
      imported from ‘Prelude’ at Language/Java/Parser.hs:44:1-49
      (and originally defined in ‘GHC.Base’)
    |
222 |         id  <- try annInterfaceDecl <|> try interfaceDecl
    |         ^^

Language/Java/Parser.hs:239:5: warning: [-Wname-shadowing]
    This binding for ‘id’ shadows the existing binding
      imported from ‘Prelude’ at Language/Java/Parser.hs:44:1-49
      (and originally defined in ‘GHC.Base’)
    |
239 |     id  <- ident
    |     ^^

Language/Java/Parser.hs:253:5: warning: [-Wname-shadowing]
    This binding for ‘id’ shadows the existing binding
      imported from ‘Prelude’ at Language/Java/Parser.hs:44:1-49
      (and originally defined in ‘GHC.Base’)
    |
253 |     id  <- ident
    |     ^^

Language/Java/Parser.hs:296:9: warning: [-Wname-shadowing]
    This binding for ‘id’ shadows the existing binding
      imported from ‘Prelude’ at Language/Java/Parser.hs:44:1-49
      (and originally defined in ‘GHC.Base’)
    |
296 |     (do id  <- try annInterfaceDecl <|> try interfaceDecl
    |         ^^

Language/Java/Parser.hs:305:5: warning: [-Wname-shadowing]
    This binding for ‘id’ shadows the existing binding
      imported from ‘Prelude’ at Language/Java/Parser.hs:44:1-49
      (and originally defined in ‘GHC.Base’)
    |
305 |     id  <- ident
    |     ^^

Language/Java/Parser.hs:329:43: warning: [-Wunused-matches]
    Defined but not used: ‘xs’
    |
329 |         validateFPs (FormalParam _ _ b _ :xs) = not b
    |                                           ^^

Language/Java/Parser.hs:393:5: warning: [-Wname-shadowing]
    This binding for ‘id’ shadows the existing binding
      imported from ‘Prelude’ at Language/Java/Parser.hs:44:1-49
      (and originally defined in ‘GHC.Base’)
    |
393 |     id  <- ident
    |     ^^

Language/Java/Parser.hs:394:5: warning: [-Wname-shadowing]
    This binding for ‘abs’ shadows the existing binding
      imported from ‘Prelude’ at Language/Java/Parser.hs:44:1-49
      (and originally defined in ‘GHC.Num’)
    |
394 |     abs <- list arrBrackets
    |     ^^^

Language/Java/Parser.hs:415:5: warning: [-Wunused-do-bind]
    A do-notation statement discarded a result of type ‘Maybe ()’
    Suppress this warning by saying ‘_ <- opt comma’
    |
415 |     opt comma
    |     ^^^^^^^^^

Language/Java/Parser.hs:722:1: warning: [-Wunused-top-binds]
    Defined but not used: ‘primaryNoNewArray’
    |
722 | primaryNoNewArray = startSuff primaryNoNewArrayNPS primarySuffix
    | ^^^^^^^^^^^^^^^^^

Language/Java/Parser.hs:888:28: warning: [-Wname-shadowing]
    This binding for ‘n’ shadows the existing binding
      bound at Language/Java/Parser.hs:886:9
    |
888 |                  return $ \n -> MethodCall n as) <|>
    |                            ^

Language/Java/Parser.hs:895:27: warning: [-Wname-shadowing]
    This binding for ‘n’ shadows the existing binding
      bound at Language/Java/Parser.hs:886:9
    |
895 |                 return $ \n -> mc n rts i as)
    |                           ^

Language/Java/Parser.hs:901:9: warning: [-Wunused-matches]
    Defined but not used: ‘rts’
    |
901 |         rts <- lopt refTypeArgs
    |         ^^^

Language/Java/Parser.hs:985:24: warning: [-Wname-shadowing]
    This binding for ‘t’ shadows the existing binding
      bound at Language/Java/Parser.hs:981:5
    |
985 |              return $ \t -> ArrayCreateInit t (length ds) ai) <|>
    |                        ^

Language/Java/Parser.hs:988:24: warning: [-Wname-shadowing]
    This binding for ‘t’ shadows the existing binding
      bound at Language/Java/Parser.hs:981:5
    |
988 |              return $ \t -> ArrayCreate t des (length ds))
    |                        ^

Language/Java/Parser.hs:1188:17: warning: [-Wunused-do-bind]
    A do-notation statement discarded a result of type ‘sep’
    Suppress this warning by saying ‘_ <- sep’
     |
1188 |         try (do sep
     |                 ^^^

Language/Java/Parser.hs:1204:11: warning: [-Wname-shadowing]
    This binding for ‘test’ shadows the existing binding
      defined at Language/Java/Parser.hs:1235:1
     |
1204 | javaToken test = token showT posT testT
     |           ^^^^

Language/Java/Parser.hs:1235:1: warning: [-Wunused-top-binds]
    Defined but not used: ‘test’
     |
1235 | test = "public class Foo { }"
     | ^^^^

Language/Java/Parser.hs:1236:1: warning: [-Wunused-top-binds]
    Defined but not used: ‘testFile’
     |
1236 | testFile file = do
     | ^^^^^^^^
> /tmp/stackage-build2456/language-java-0.2.9$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2456/language-java-0.2.9$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181116/language-java-0.2.9-2pnWXjgDFEfK6Ojvc6plIR
> /tmp/stackage-build2456/language-java-0.2.9$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2456/language-java-0.2.9$ ./Setup register
Registering library for language-java-0.2.9..