The build is unreachable.

Build log

> /tmp/stackage-build2452$ stack unpack hw-string-parse-0.0.0.4@sha256:6792ac6ac96d036cdf3c7511775aa856d4190047fe9b78b95c9348c01e51ae9b
Unpacked hw-string-parse-0.0.0.4 to /tmp/stackage-build2452/hw-string-parse-0.0.0.4/
> /tmp/stackage-build2452/hw-string-parse-0.0.0.4$ 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/hw-string-parse-0.0.0.4$ ./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/hw-string-parse-0.0.0.4 --htmldir=/home/circleci/project/builds/nightly/doc/hw-string-parse-0.0.0.4 --haddockdir=/home/circleci/project/builds/nightly/doc/hw-string-parse-0.0.0.4
Configuring hw-string-parse-0.0.0.4...
> /tmp/stackage-build2452/hw-string-parse-0.0.0.4$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2452/hw-string-parse-0.0.0.4$ ./Setup build
Preprocessing library for hw-string-parse-0.0.0.4..
Building library for hw-string-parse-0.0.0.4..
[1 of 1] Compiling HaskellWorks.Data.String.Parse ( src/HaskellWorks/Data/String/Parse.hs, dist/build/HaskellWorks/Data/String/Parse.o )
> /tmp/stackage-build2452/hw-string-parse-0.0.0.4$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2452/hw-string-parse-0.0.0.4$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181113/hw-string-parse-0.0.0.4-HB88o44dWeE1Dk9Fsn36eI
> /tmp/stackage-build2452/hw-string-parse-0.0.0.4$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2452/hw-string-parse-0.0.0.4$ ./Setup register
Registering library for hw-string-parse-0.0.0.4..