The build is unreachable.

Build log

> /tmp/stackage-build2452$ stack unpack wide-word-0.1.0.6@sha256:07639a734d616140c6154752f56d2740c3184d3efe299c6f329f8620f7a0f2c0
Unpacked wide-word-0.1.0.6 to /tmp/stackage-build2452/wide-word-0.1.0.6/
> /tmp/stackage-build2452/wide-word-0.1.0.6$ 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-build2452/wide-word-0.1.0.6$ ./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/wide-word-0.1.0.6 --htmldir=/home/circleci/project/builds/nightly/doc/wide-word-0.1.0.6 --haddockdir=/home/circleci/project/builds/nightly/doc/wide-word-0.1.0.6
Configuring wide-word-0.1.0.6...
> /tmp/stackage-build2452/wide-word-0.1.0.6$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2452/wide-word-0.1.0.6$ ./Setup build
Preprocessing library for wide-word-0.1.0.6..
Building library for wide-word-0.1.0.6..
[1 of 3] Compiling Data.WideWord.Word128 ( Data/WideWord/Word128.hs, dist/build/Data/WideWord/Word128.o )
[2 of 3] Compiling Data.WideWord.Int128 ( Data/WideWord/Int128.hs, dist/build/Data/WideWord/Int128.o )
[3 of 3] Compiling Data.WideWord    ( Data/WideWord.hs, dist/build/Data/WideWord.o )
> /tmp/stackage-build2452/wide-word-0.1.0.6$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2452/wide-word-0.1.0.6$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181113/wide-word-0.1.0.6-4N2O7KtHua2SWK9Nd4jkX
> /tmp/stackage-build2452/wide-word-0.1.0.6$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2452/wide-word-0.1.0.6$ ./Setup register
Registering library for wide-word-0.1.0.6..