The build is unreachable.

Build log

> /tmp/stackage-build2456$ stack unpack optparse-applicative-0.14.3.0@sha256:b6b56a922d10911a2824b965750ddc7794de746e347afe67f1a84d05168368dc
Unpacked optparse-applicative-0.14.3.0 to /tmp/stackage-build2456/optparse-applicative-0.14.3.0/
> /tmp/stackage-build2456/optparse-applicative-0.14.3.0$ 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/optparse-applicative-0.14.3.0$ ./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/optparse-applicative-0.14.3.0 --htmldir=/home/circleci/project/builds/nightly/doc/optparse-applicative-0.14.3.0 --haddockdir=/home/circleci/project/builds/nightly/doc/optparse-applicative-0.14.3.0
Configuring optparse-applicative-0.14.3.0...
> /tmp/stackage-build2456/optparse-applicative-0.14.3.0$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2456/optparse-applicative-0.14.3.0$ ./Setup build
Preprocessing library for optparse-applicative-0.14.3.0..
Building library for optparse-applicative-0.14.3.0..
[ 1 of 16] Compiling Options.Applicative.Help.Levenshtein ( Options/Applicative/Help/Levenshtein.hs, dist/build/Options/Applicative/Help/Levenshtein.o )
[ 2 of 16] Compiling Options.Applicative.Help.Pretty ( Options/Applicative/Help/Pretty.hs, dist/build/Options/Applicative/Help/Pretty.o )
[ 3 of 16] Compiling Options.Applicative.Help.Chunk ( Options/Applicative/Help/Chunk.hs, dist/build/Options/Applicative/Help/Chunk.o )
[ 4 of 16] Compiling Options.Applicative.Help.Types ( Options/Applicative/Help/Types.hs, dist/build/Options/Applicative/Help/Types.o )
[ 5 of 16] Compiling Options.Applicative.Types ( Options/Applicative/Types.hs, dist/build/Options/Applicative/Types.o )
[ 6 of 16] Compiling Options.Applicative.Internal ( Options/Applicative/Internal.hs, dist/build/Options/Applicative/Internal.o )
[ 7 of 16] Compiling Options.Applicative.Common ( Options/Applicative/Common.hs, dist/build/Options/Applicative/Common.o )
[ 8 of 16] Compiling Options.Applicative.Help.Core ( Options/Applicative/Help/Core.hs, dist/build/Options/Applicative/Help/Core.o )
[ 9 of 16] Compiling Options.Applicative.Help ( Options/Applicative/Help.hs, dist/build/Options/Applicative/Help.o )
[10 of 16] Compiling Options.Applicative.Builder.Internal ( Options/Applicative/Builder/Internal.hs, dist/build/Options/Applicative/Builder/Internal.o )
[11 of 16] Compiling Options.Applicative.Builder.Completer ( Options/Applicative/Builder/Completer.hs, dist/build/Options/Applicative/Builder/Completer.o )
[12 of 16] Compiling Options.Applicative.Builder ( Options/Applicative/Builder.hs, dist/build/Options/Applicative/Builder.o )

Options/Applicative/Builder.hs:105:1: warning: [-Wunused-imports]
    The import of ‘Data.Semigroup’ is redundant
      except perhaps to import instances from ‘Data.Semigroup’
    To import instances alone, use: import Data.Semigroup()
    |
105 | import Data.Semigroup hiding (option)
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[13 of 16] Compiling Options.Applicative.BashCompletion ( Options/Applicative/BashCompletion.hs, dist/build/Options/Applicative/BashCompletion.o )
[14 of 16] Compiling Options.Applicative.Extra ( Options/Applicative/Extra.hs, dist/build/Options/Applicative/Extra.o )
[15 of 16] Compiling Options.Applicative ( Options/Applicative.hs, dist/build/Options/Applicative.o )
[16 of 16] Compiling Options.Applicative.Arrows ( Options/Applicative/Arrows.hs, dist/build/Options/Applicative/Arrows.o )
> /tmp/stackage-build2456/optparse-applicative-0.14.3.0$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2456/optparse-applicative-0.14.3.0$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181117/optparse-applicative-0.14.3.0-4tUlD9Q19ADFAEoL9cA6yu
> /tmp/stackage-build2456/optparse-applicative-0.14.3.0$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2456/optparse-applicative-0.14.3.0$ ./Setup register
Registering library for optparse-applicative-0.14.3.0..