The build is unreachable.

Build log

> /tmp/stackage-build2454$ stack unpack control-dsl-0.2.1.3@sha256:84623651d286d0d73e3b4867031fdfb8a86afd411185c06732fa03041e4213c3
Unpacked control-dsl-0.2.1.3 to /tmp/stackage-build2454/control-dsl-0.2.1.3/
> /tmp/stackage-build2454/control-dsl-0.2.1.3$ 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/control-dsl-0.2.1.3$ ./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/control-dsl-0.2.1.3 --htmldir=/home/circleci/project/builds/nightly/doc/control-dsl-0.2.1.3 --haddockdir=/home/circleci/project/builds/nightly/doc/control-dsl-0.2.1.3
Configuring control-dsl-0.2.1.3...
> /tmp/stackage-build2454/control-dsl-0.2.1.3$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2454/control-dsl-0.2.1.3$ ./Setup build
Preprocessing library for control-dsl-0.2.1.3..
Building library for control-dsl-0.2.1.3..
[ 1 of 13] Compiling Control.Dsl.PolyCont ( src/Control/Dsl/PolyCont.hs, dist/build/Control/Dsl/PolyCont.o )
[ 2 of 13] Compiling Control.Dsl.Monadic ( src/Control/Dsl/Monadic.hs, dist/build/Control/Dsl/Monadic.o )
[ 3 of 13] Compiling Control.Dsl.Empty ( src/Control/Dsl/Empty.hs, dist/build/Control/Dsl/Empty.o )
[ 4 of 13] Compiling Control.Dsl.Return ( src/Control/Dsl/Return.hs, dist/build/Control/Dsl/Return.o )
[ 5 of 13] Compiling Control.Dsl.Cont ( src/Control/Dsl/Cont.hs, dist/build/Control/Dsl/Cont.o )
[ 6 of 13] Compiling Control.Dsl.Dsl  ( src/Control/Dsl/Dsl.hs, dist/build/Control/Dsl/Dsl.o )
[ 7 of 13] Compiling Control.Dsl.Shift ( src/Control/Dsl/Shift.hs, dist/build/Control/Dsl/Shift.o )
[ 8 of 13] Compiling Control.Dsl.State.State ( src/Control/Dsl/State/State.hs, dist/build/Control/Dsl/State/State.o )
[ 9 of 13] Compiling Control.Dsl.State.Put ( src/Control/Dsl/State/Put.hs, dist/build/Control/Dsl/State/Put.o )
[10 of 13] Compiling Control.Dsl.State.Get ( src/Control/Dsl/State/Get.hs, dist/build/Control/Dsl/State/Get.o )
[11 of 13] Compiling Control.Dsl.State ( src/Control/Dsl/State.hs, dist/build/Control/Dsl/State.o )
[12 of 13] Compiling Control.Dsl.Yield ( src/Control/Dsl/Yield.hs, dist/build/Control/Dsl/Yield.o )
[13 of 13] Compiling Control.Dsl      ( src/Control/Dsl.hs, dist/build/Control/Dsl.o )
> /tmp/stackage-build2454/control-dsl-0.2.1.3$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2454/control-dsl-0.2.1.3$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181122/control-dsl-0.2.1.3-ECaetUSL1T6E1B4qSEkmIi
> /tmp/stackage-build2454/control-dsl-0.2.1.3$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2454/control-dsl-0.2.1.3$ ./Setup register
Registering library for control-dsl-0.2.1.3..