The build is unreachable.
Build log
> /tmp/stackage-build2452$ stack unpack base-orphans-0.8@sha256:4885caa82ab94fa5cb841d6d06a43a97cdc7e835f346be4f11c1cc5707b886db
Unpacked base-orphans-0.8 to /tmp/stackage-build2452/base-orphans-0.8/
> /tmp/stackage-build2452/base-orphans-0.8$ 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/base-orphans-0.8$ ./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/base-orphans-0.8 --htmldir=/home/circleci/project/builds/nightly/doc/base-orphans-0.8 --haddockdir=/home/circleci/project/builds/nightly/doc/base-orphans-0.8
Configuring base-orphans-0.8...
> /tmp/stackage-build2452/base-orphans-0.8$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2452/base-orphans-0.8$ ./Setup build
Preprocessing library for base-orphans-0.8..
Building library for base-orphans-0.8..
[1 of 2] Compiling Data.Orphans ( src/Data/Orphans.hs, dist/build/Data/Orphans.o )
[2 of 2] Compiling Data.Orphans.Prelude ( src/Data/Orphans/Prelude.hs, dist/build/Data/Orphans/Prelude.o )
> /tmp/stackage-build2452/base-orphans-0.8$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2452/base-orphans-0.8$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181113/base-orphans-0.8-9c3aMxqS7QbGl4Ot5i8lwK
> /tmp/stackage-build2452/base-orphans-0.8$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2452/base-orphans-0.8$ ./Setup register
Registering library for base-orphans-0.8..