The build is unreachable.

Build log

> /tmp/stackage-build2456$ stack unpack di-core-1.0.3@sha256:1fed4988c32d468fb1eb9e666b668e9e03de46df6428e81b67e95a84e9f3db48
Unpacked di-core-1.0.3 to /tmp/stackage-build2456/di-core-1.0.3/
> /tmp/stackage-build2456/di-core-1.0.3$ 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/di-core-1.0.3$ ./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/di-core-1.0.3 --htmldir=/home/circleci/project/builds/nightly/doc/di-core-1.0.3 --haddockdir=/home/circleci/project/builds/nightly/doc/di-core-1.0.3
Configuring di-core-1.0.3...
> /tmp/stackage-build2456/di-core-1.0.3$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2456/di-core-1.0.3$ ./Setup build
Preprocessing library for di-core-1.0.3..
Building library for di-core-1.0.3..
[1 of 1] Compiling Di.Core          ( lib/Di/Core.hs, dist/build/Di/Core.o )
> /tmp/stackage-build2456/di-core-1.0.3$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2456/di-core-1.0.3$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181116/di-core-1.0.3-20txOdxJNKjBmrhxrVBNAf
> /tmp/stackage-build2456/di-core-1.0.3$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2456/di-core-1.0.3$ ./Setup register
Registering library for di-core-1.0.3..