The build is unreachable.

Build log

> /tmp/stackage-build2454$ stack unpack prettyprinter-1.2.1@sha256:69856d061c602917d578190265edb62b14f63a2e02bcc565adf31146f903a45b
Unpacked prettyprinter-1.2.1 to /tmp/stackage-build2454/prettyprinter-1.2.1/
> /tmp/stackage-build2454/prettyprinter-1.2.1$ 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-build2454/prettyprinter-1.2.1$ ./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/prettyprinter-1.2.1 --htmldir=/home/circleci/project/builds/nightly/doc/prettyprinter-1.2.1 --haddockdir=/home/circleci/project/builds/nightly/doc/prettyprinter-1.2.1
Configuring prettyprinter-1.2.1...
> /tmp/stackage-build2454/prettyprinter-1.2.1$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2454/prettyprinter-1.2.1$ ./Setup build
Preprocessing library for prettyprinter-1.2.1..
Building library for prettyprinter-1.2.1..

src/Data/Text/Prettyprint/Doc/Internal.hs:1:14: warning:
    -XAutoDeriveTypeable is deprecated: Typeable instances are created automatically for all types since GHC 8.2.
  |
1 | {-# LANGUAGE AutoDeriveTypeable  #-}
  |              ^^^^^^^^^^^^^^^^^^

src/Data/Text/Prettyprint/Doc/Render/Util/SimpleDocTree.hs:1:14: warning:
    -XAutoDeriveTypeable is deprecated: Typeable instances are created automatically for all types since GHC 8.2.
  |
1 | {-# LANGUAGE AutoDeriveTypeable #-}
  |              ^^^^^^^^^^^^^^^^^^
[ 1 of 14] Compiling Data.Text.Prettyprint.Doc.Render.Util.Panic ( src/Data/Text/Prettyprint/Doc/Render/Util/Panic.hs, dist/build/Data/Text/Prettyprint/Doc/Render/Util/Panic.o )
[ 2 of 14] Compiling Data.Text.Prettyprint.Doc.Internal ( src/Data/Text/Prettyprint/Doc/Internal.hs, dist/build/Data/Text/Prettyprint/Doc/Internal.o )
[ 3 of 14] Compiling Data.Text.Prettyprint.Doc.Render.String ( src/Data/Text/Prettyprint/Doc/Render/String.hs, dist/build/Data/Text/Prettyprint/Doc/Render/String.o )
[ 4 of 14] Compiling Data.Text.Prettyprint.Doc.Render.ShowS ( src/Data/Text/Prettyprint/Doc/Render/ShowS.hs, dist/build/Data/Text/Prettyprint/Doc/Render/ShowS.o )
[ 5 of 14] Compiling Data.Text.Prettyprint.Doc.Internal.Type ( src/Data/Text/Prettyprint/Doc/Internal/Type.hs, dist/build/Data/Text/Prettyprint/Doc/Internal/Type.o )
[ 6 of 14] Compiling Data.Text.Prettyprint.Doc.Symbols.Ascii ( src/Data/Text/Prettyprint/Doc/Symbols/Ascii.hs, dist/build/Data/Text/Prettyprint/Doc/Symbols/Ascii.o )
[ 7 of 14] Compiling Data.Text.Prettyprint.Doc ( src/Data/Text/Prettyprint/Doc.hs, dist/build/Data/Text/Prettyprint/Doc.o )

src/Data/Text/Prettyprint/Doc.hs:290:1: 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()
    |
290 | import Data.Semigroup
    | ^^^^^^^^^^^^^^^^^^^^^
[ 8 of 14] Compiling Data.Text.Prettyprint.Doc.Render.Util.StackMachine ( src/Data/Text/Prettyprint/Doc/Render/Util/StackMachine.hs, dist/build/Data/Text/Prettyprint/Doc/Render/Util/StackMachine.o )

src/Data/Text/Prettyprint/Doc/Render/Util/StackMachine.hs:37:1: warning: [-Wunused-imports]
    The import of ‘Data.Monoid’ is redundant
      except perhaps to import instances from ‘Data.Monoid’
    To import instances alone, use: import Data.Monoid()
   |
37 | import           Data.Monoid
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[ 9 of 14] Compiling Data.Text.Prettyprint.Doc.Render.Util.SimpleDocTree ( src/Data/Text/Prettyprint/Doc/Render/Util/SimpleDocTree.hs, dist/build/Data/Text/Prettyprint/Doc/Render/Util/SimpleDocTree.o )
[10 of 14] Compiling Data.Text.Prettyprint.Doc.Render.Tutorials.TreeRenderingTutorial ( src/Data/Text/Prettyprint/Doc/Render/Tutorials/TreeRenderingTutorial.hs, dist/build/Data/Text/Prettyprint/Doc/Render/Tutorials/TreeRenderingTutorial.o )

src/Data/Text/Prettyprint/Doc/Render/Tutorials/TreeRenderingTutorial.hs:23:1: 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()
   |
23 | import           Data.Semigroup
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[11 of 14] Compiling Data.Text.Prettyprint.Doc.Render.Tutorials.StackMachineTutorial ( src/Data/Text/Prettyprint/Doc/Render/Tutorials/StackMachineTutorial.hs, dist/build/Data/Text/Prettyprint/Doc/Render/Tutorials/StackMachineTutorial.o )
[12 of 14] Compiling Data.Text.Prettyprint.Doc.Render.Text ( src/Data/Text/Prettyprint/Doc/Render/Text.hs, dist/build/Data/Text/Prettyprint/Doc/Render/Text.o )
[13 of 14] Compiling Data.Text.Prettyprint.Doc.Symbols.Unicode ( src/Data/Text/Prettyprint/Doc/Symbols/Unicode.hs, dist/build/Data/Text/Prettyprint/Doc/Symbols/Unicode.o )
[14 of 14] Compiling Data.Text.Prettyprint.Doc.Util ( src/Data/Text/Prettyprint/Doc/Util.hs, dist/build/Data/Text/Prettyprint/Doc/Util.o )
> /tmp/stackage-build2454/prettyprinter-1.2.1$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2454/prettyprinter-1.2.1$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181116/prettyprinter-1.2.1-6xDm5Vkr7rMKV6qwOz54ee
> /tmp/stackage-build2454/prettyprinter-1.2.1$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2454/prettyprinter-1.2.1$ ./Setup register
Registering library for prettyprinter-1.2.1..