The build is unreachable.

Build log

> /tmp/stackage-build2451$ stack unpack ghost-buster-0.1.1.0@sha256:8a51f04979a8a84dd01a13f2fd27093db4d964baf64c28bb381645fff98fba3e
Unpacked ghost-buster-0.1.1.0 to /tmp/stackage-build2451/ghost-buster-0.1.1.0/
> /tmp/stackage-build2451/ghost-buster-0.1.1.0$ 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-build2451/ghost-buster-0.1.1.0$ ./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/ghost-buster-0.1.1.0 --htmldir=/home/circleci/project/builds/nightly/doc/ghost-buster-0.1.1.0 --haddockdir=/home/circleci/project/builds/nightly/doc/ghost-buster-0.1.1.0
Configuring ghost-buster-0.1.1.0...
> /tmp/stackage-build2451/ghost-buster-0.1.1.0$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2451/ghost-buster-0.1.1.0$ ./Setup build
Preprocessing library for ghost-buster-0.1.1.0..
Building library for ghost-buster-0.1.1.0..
[1 of 1] Compiling Data.SuchThat    ( src/Data/SuchThat.hs, dist/build/Data/SuchThat.o )
> /tmp/stackage-build2451/ghost-buster-0.1.1.0$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2451/ghost-buster-0.1.1.0$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181114/ghost-buster-0.1.1.0-Dg3wnniXUk07nnMkU9IIxK
> /tmp/stackage-build2451/ghost-buster-0.1.1.0$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2451/ghost-buster-0.1.1.0$ ./Setup register
Registering library for ghost-buster-0.1.1.0..