The build is unreachable.
Build log
> /tmp/stackage-build2451$ stack unpack dvorak-0.1.0.0@sha256:a388df66f7f48ca1d27d4a345b3c89ec604f3fb9d63338aaaa559ec7d678f0f5
Unpacked dvorak-0.1.0.0 to /tmp/stackage-build2451/dvorak-0.1.0.0/
> /tmp/stackage-build2451/dvorak-0.1.0.0$ 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-build2451/dvorak-0.1.0.0$ ./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/dvorak-0.1.0.0 --htmldir=/home/circleci/project/builds/nightly/doc/dvorak-0.1.0.0 --haddockdir=/home/circleci/project/builds/nightly/doc/dvorak-0.1.0.0
Configuring dvorak-0.1.0.0...
> /tmp/stackage-build2451/dvorak-0.1.0.0$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2451/dvorak-0.1.0.0$ ./Setup build
Preprocessing library for dvorak-0.1.0.0..
Building library for dvorak-0.1.0.0..
[1 of 1] Compiling Codec.Dvorak ( src/Codec/Dvorak.hs, dist/build/Codec/Dvorak.o )
> /tmp/stackage-build2451/dvorak-0.1.0.0$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2451/dvorak-0.1.0.0$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181119/dvorak-0.1.0.0-6YB56tbeB1bJuaHqYVe9TN
> /tmp/stackage-build2451/dvorak-0.1.0.0$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2451/dvorak-0.1.0.0$ ./Setup register
Registering library for dvorak-0.1.0.0..