The build is unreachable.

Build log

> /tmp/stackage-build2454$ stack unpack numbers-3000.2.0.2@sha256:fedb235e16f19ffb5dc40711738c29e231fae4ad608473880a1f59ba5f60829e
Unpacked numbers-3000.2.0.2 to /tmp/stackage-build2454/numbers-3000.2.0.2/
> /tmp/stackage-build2454/numbers-3000.2.0.2$ 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/numbers-3000.2.0.2$ ./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/numbers-3000.2.0.2 --htmldir=/home/circleci/project/builds/nightly/doc/numbers-3000.2.0.2 --haddockdir=/home/circleci/project/builds/nightly/doc/numbers-3000.2.0.2
Configuring numbers-3000.2.0.2...
> /tmp/stackage-build2454/numbers-3000.2.0.2$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2454/numbers-3000.2.0.2$ ./Setup build
Preprocessing library for numbers-3000.2.0.2..
Building library for numbers-3000.2.0.2..
[1 of 9] Compiling Data.Number.CReal ( Data/Number/CReal.hs, dist/build/Data/Number/CReal.o )
[2 of 9] Compiling Data.Number.Dif  ( Data/Number/Dif.hs, dist/build/Data/Number/Dif.o )
[3 of 9] Compiling Data.Number.FixedFunctions ( Data/Number/FixedFunctions.hs, dist/build/Data/Number/FixedFunctions.o )
[4 of 9] Compiling Data.Number.Fixed ( Data/Number/Fixed.hs, dist/build/Data/Number/Fixed.o )
[5 of 9] Compiling Data.Number.BigFloat ( Data/Number/BigFloat.hs, dist/build/Data/Number/BigFloat.o )
[6 of 9] Compiling Data.Number.Interval ( Data/Number/Interval.hs, dist/build/Data/Number/Interval.o )
[7 of 9] Compiling Data.Number.Natural ( Data/Number/Natural.hs, dist/build/Data/Number/Natural.o )
[8 of 9] Compiling Data.Number.Symbolic ( Data/Number/Symbolic.hs, dist/build/Data/Number/Symbolic.o )
[9 of 9] Compiling Data.Number.Vectorspace ( Data/Number/Vectorspace.hs, dist/build/Data/Number/Vectorspace.o )
> /tmp/stackage-build2454/numbers-3000.2.0.2$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2454/numbers-3000.2.0.2$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181116/numbers-3000.2.0.2-Ga5bIUWZYyN44JaDZH3IXM
> /tmp/stackage-build2454/numbers-3000.2.0.2$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2454/numbers-3000.2.0.2$ ./Setup register
Registering library for numbers-3000.2.0.2..