The build is unreachable.
Build log
> /tmp/stackage-build2456$ stack unpack word8-0.1.3@sha256:e5464d0600821a116467d4b12fef12b15ff040c3599500e5f0274225e78c6faf
Unpacked word8-0.1.3 to /tmp/stackage-build2456/word8-0.1.3/
> /tmp/stackage-build2456/word8-0.1.3$ 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/word8-0.1.3$ ./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/word8-0.1.3 --htmldir=/home/circleci/project/builds/nightly/doc/word8-0.1.3 --haddockdir=/home/circleci/project/builds/nightly/doc/word8-0.1.3
Configuring word8-0.1.3...
> /tmp/stackage-build2456/word8-0.1.3$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2456/word8-0.1.3$ ./Setup build
Preprocessing library for word8-0.1.3..
Building library for word8-0.1.3..
[1 of 2] Compiling Data.Char8 ( Data/Char8.hs, dist/build/Data/Char8.o )
[2 of 2] Compiling Data.Word8 ( Data/Word8.hs, dist/build/Data/Word8.o )
> /tmp/stackage-build2456/word8-0.1.3$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2456/word8-0.1.3$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181117/word8-0.1.3-Hij9fyb7arJ9SXwAnMfmS0
> /tmp/stackage-build2456/word8-0.1.3$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2456/word8-0.1.3$ ./Setup register
Registering library for word8-0.1.3..