The build is unreachable.

Build log

> /tmp/stackage-build2451$ stack unpack wl-pprint-annotated-0.1.0.1@sha256:0b8fd3649bfe72d155a4379e4c88b7ef00408f6f4973f63333787fd2e1b5ba1e
Unpacked wl-pprint-annotated-0.1.0.1 to /tmp/stackage-build2451/wl-pprint-annotated-0.1.0.1/
> /tmp/stackage-build2451/wl-pprint-annotated-0.1.0.1$ 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/wl-pprint-annotated-0.1.0.1$ ./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/wl-pprint-annotated-0.1.0.1 --htmldir=/home/circleci/project/builds/nightly/doc/wl-pprint-annotated-0.1.0.1 --haddockdir=/home/circleci/project/builds/nightly/doc/wl-pprint-annotated-0.1.0.1
Configuring wl-pprint-annotated-0.1.0.1...
> /tmp/stackage-build2451/wl-pprint-annotated-0.1.0.1$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2451/wl-pprint-annotated-0.1.0.1$ ./Setup build
Preprocessing library for wl-pprint-annotated-0.1.0.1..
Building library for wl-pprint-annotated-0.1.0.1..
[1 of 2] Compiling Paths_wl_pprint_annotated ( dist/build/autogen/Paths_wl_pprint_annotated.hs, dist/build/Paths_wl_pprint_annotated.o )
[2 of 2] Compiling Text.PrettyPrint.Annotated.WL ( src/Text/PrettyPrint/Annotated/WL.hs, dist/build/Text/PrettyPrint/Annotated/WL.o )

src/Text/PrettyPrint/Annotated/WL.hs:143:1: warning: [-Wunused-imports]
    The import of ‘Data.Semigroup’ is redundant
      except perhaps to import instances from ‘Data.Semigroup’
    To import instances alone, use: import Data.Semigroup()
    |
143 | import Data.Semigroup
    | ^^^^^^^^^^^^^^^^^^^^^
> /tmp/stackage-build2451/wl-pprint-annotated-0.1.0.1$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2451/wl-pprint-annotated-0.1.0.1$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181119/wl-pprint-annotated-0.1.0.1-7PPvQ0L6tHS2lo99w4PtQy
> /tmp/stackage-build2451/wl-pprint-annotated-0.1.0.1$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2451/wl-pprint-annotated-0.1.0.1$ ./Setup register
Registering library for wl-pprint-annotated-0.1.0.1..