The build is unreachable.

Build log

> /tmp/stackage-build2453$ stack unpack tmapmvar-0.0.4@sha256:d5e42a78969466d7d158d30d7e5f5f9ba4fd3fa6861fa68b847ea36e48c763d9
Unpacked tmapmvar-0.0.4 to /tmp/stackage-build2453/tmapmvar-0.0.4/
> /tmp/stackage-build2453/tmapmvar-0.0.4$ 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/tmapmvar-0.0.4$ ./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/tmapmvar-0.0.4 --htmldir=/home/circleci/project/builds/nightly/doc/tmapmvar-0.0.4 --haddockdir=/home/circleci/project/builds/nightly/doc/tmapmvar-0.0.4
Configuring tmapmvar-0.0.4...
> /tmp/stackage-build2453/tmapmvar-0.0.4$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2453/tmapmvar-0.0.4$ ./Setup build
Preprocessing library for tmapmvar-0.0.4..
Building library for tmapmvar-0.0.4..
[1 of 3] Compiling Control.Concurrent.STM.TMapMVar ( src/Control/Concurrent/STM/TMapMVar.hs, dist/build/Control/Concurrent/STM/TMapMVar.o )
[2 of 3] Compiling Control.Concurrent.STM.TMapMVar.Hash ( src/Control/Concurrent/STM/TMapMVar/Hash.hs, dist/build/Control/Concurrent/STM/TMapMVar/Hash.o )
[3 of 3] Compiling Paths_tmapmvar   ( dist/build/autogen/Paths_tmapmvar.hs, dist/build/Paths_tmapmvar.o )
> /tmp/stackage-build2453/tmapmvar-0.0.4$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2453/tmapmvar-0.0.4$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181115/tmapmvar-0.0.4-Ib6WELIZFUOGg5hnhWhObI
> /tmp/stackage-build2453/tmapmvar-0.0.4$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2453/tmapmvar-0.0.4$ ./Setup register
Registering library for tmapmvar-0.0.4..