The build is unreachable.

Build log

> /tmp/stackage-build2454$ stack unpack lens-family-th-0.5.0.2@sha256:c6bcdeb5d10ccb98e2a4d13dd54a1231585b713577e702070c9f7bdca6e97d54
Unpacked lens-family-th-0.5.0.2 to /tmp/stackage-build2454/lens-family-th-0.5.0.2/
> /tmp/stackage-build2454/lens-family-th-0.5.0.2$ 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-build2454/lens-family-th-0.5.0.2$ ./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/lens-family-th-0.5.0.2 --htmldir=/home/circleci/project/builds/nightly/doc/lens-family-th-0.5.0.2 --haddockdir=/home/circleci/project/builds/nightly/doc/lens-family-th-0.5.0.2
Configuring lens-family-th-0.5.0.2...
> /tmp/stackage-build2454/lens-family-th-0.5.0.2$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2454/lens-family-th-0.5.0.2$ ./Setup build
Preprocessing library for lens-family-th-0.5.0.2..
Building library for lens-family-th-0.5.0.2..
[1 of 3] Compiling Lens.Family.THCore ( src/Lens/Family/THCore.hs, dist/build/Lens/Family/THCore.o )
[2 of 3] Compiling Lens.Family.TH   ( src/Lens/Family/TH.hs, dist/build/Lens/Family/TH.o )
[3 of 3] Compiling Lens.Family2.TH  ( src/Lens/Family2/TH.hs, dist/build/Lens/Family2/TH.o )
> /tmp/stackage-build2454/lens-family-th-0.5.0.2$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2454/lens-family-th-0.5.0.2$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181122/lens-family-th-0.5.0.2-IvpkfOJXLWeG8H2hV8l3Dx
> /tmp/stackage-build2454/lens-family-th-0.5.0.2$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2454/lens-family-th-0.5.0.2$ ./Setup register
Registering library for lens-family-th-0.5.0.2..