The build is unreachable.
Build log
> /tmp/stackage-build2453$ stack unpack do-list-1.0.1@sha256:d7d018b33e04ab5caa1fe7bb3a551ce14ae8b64ec0d459a6c38666164310b611
Unpacked do-list-1.0.1 to /tmp/stackage-build2453/do-list-1.0.1/
> /tmp/stackage-build2453/do-list-1.0.1$ 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-build2453/do-list-1.0.1$ ./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/do-list-1.0.1 --htmldir=/home/circleci/project/builds/nightly/doc/do-list-1.0.1 --haddockdir=/home/circleci/project/builds/nightly/doc/do-list-1.0.1
Configuring do-list-1.0.1...
> /tmp/stackage-build2453/do-list-1.0.1$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2453/do-list-1.0.1$ ./Setup build
Preprocessing library for do-list-1.0.1..
Building library for do-list-1.0.1..
[1 of 2] Compiling Data.DoMonoid ( src/Data/DoMonoid.hs, dist/build/Data/DoMonoid.o )
[2 of 2] Compiling Data.DoList ( src/Data/DoList.hs, dist/build/Data/DoList.o )
> /tmp/stackage-build2453/do-list-1.0.1$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2453/do-list-1.0.1$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181120/do-list-1.0.1-4rWMw5tDcQoCv3AF3PMjvI
> /tmp/stackage-build2453/do-list-1.0.1$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2453/do-list-1.0.1$ ./Setup register
Registering library for do-list-1.0.1..