The build is unreachable.

Build log

> /tmp/stackage-build2452$ stack unpack clock-extras-0.1.0.2@sha256:83be074ffcf81b1fc964bdb537e6b16b9a232b7410e5672ad3430634ce3ccd0a
Unpacked clock-extras-0.1.0.2 to /tmp/stackage-build2452/clock-extras-0.1.0.2/
> /tmp/stackage-build2452/clock-extras-0.1.0.2$ 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-build2452/clock-extras-0.1.0.2$ ./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/clock-extras-0.1.0.2 --htmldir=/home/circleci/project/builds/nightly/doc/clock-extras-0.1.0.2 --haddockdir=/home/circleci/project/builds/nightly/doc/clock-extras-0.1.0.2
Configuring clock-extras-0.1.0.2...
> /tmp/stackage-build2452/clock-extras-0.1.0.2$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2452/clock-extras-0.1.0.2$ ./Setup build
Preprocessing library for clock-extras-0.1.0.2..
Building library for clock-extras-0.1.0.2..
[1 of 1] Compiling System.Clock.TimeIt ( src/System/Clock/TimeIt.hs, dist/build/System/Clock/TimeIt.o )
> /tmp/stackage-build2452/clock-extras-0.1.0.2$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2452/clock-extras-0.1.0.2$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181122/clock-extras-0.1.0.2-EaernczKZ4T3UnV57kb5pb
> /tmp/stackage-build2452/clock-extras-0.1.0.2$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2452/clock-extras-0.1.0.2$ ./Setup register
Registering library for clock-extras-0.1.0.2..