The build is unreachable.

Build log

> /tmp/stackage-build2451$ stack unpack utility-ht-0.0.14@sha256:586b3253413423a6fb205dbba9c02ac6c3c9684f8466e32a8c25053bc6d1d2b0
Unpacked utility-ht-0.0.14 to /tmp/stackage-build2451/utility-ht-0.0.14/
> /tmp/stackage-build2451/utility-ht-0.0.14$ 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/utility-ht-0.0.14$ ./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/utility-ht-0.0.14 --htmldir=/home/circleci/project/builds/nightly/doc/utility-ht-0.0.14 --haddockdir=/home/circleci/project/builds/nightly/doc/utility-ht-0.0.14
Configuring utility-ht-0.0.14...
> /tmp/stackage-build2451/utility-ht-0.0.14$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2451/utility-ht-0.0.14$ ./Setup build
Preprocessing library for utility-ht-0.0.14..
Building library for utility-ht-0.0.14..
[ 1 of 32] Compiling Control.Monad.HT ( src/Control/Monad/HT.hs, dist/build/Control/Monad/HT.o )
[ 2 of 32] Compiling Data.Bits.HT     ( src/Data/Bits/HT.hs, dist/build/Data/Bits/HT.o )
[ 3 of 32] Compiling Data.Bool.HT.Private ( src/Data/Bool/HT/Private.hs, dist/build/Data/Bool/HT/Private.o )
[ 4 of 32] Compiling Data.Bool.HT     ( src/Data/Bool/HT.hs, dist/build/Data/Bool/HT.o )
[ 5 of 32] Compiling Data.Either.HT   ( src/Data/Either/HT.hs, dist/build/Data/Either/HT.o )
[ 6 of 32] Compiling Data.Function.HT.Private ( src/Data/Function/HT/Private.hs, dist/build/Data/Function/HT/Private.o )
[ 7 of 32] Compiling Data.Function.HT ( src/Data/Function/HT.hs, dist/build/Data/Function/HT.o )
[ 8 of 32] Compiling Data.Eq.HT       ( src/Data/Eq/HT.hs, dist/build/Data/Eq/HT.o )
[ 9 of 32] Compiling Data.Ix.Enum     ( src/Data/Ix/Enum.hs, dist/build/Data/Ix/Enum.o )
[10 of 32] Compiling Data.List.Key.Private ( src/Data/List/Key/Private.hs, dist/build/Data/List/Key/Private.o )
[11 of 32] Compiling Data.List.Key    ( src/Data/List/Key.hs, dist/build/Data/List/Key.o )
[12 of 32] Compiling Data.Maybe.HT    ( src/Data/Maybe/HT.hs, dist/build/Data/Maybe/HT.o )
[13 of 32] Compiling Data.Monoid.HT   ( src/Data/Monoid/HT.hs, dist/build/Data/Monoid/HT.o )
[14 of 32] Compiling Data.Ord.HT      ( src/Data/Ord/HT.hs, dist/build/Data/Ord/HT.o )
[15 of 32] Compiling Data.Strictness.HT ( src/Data/Strictness/HT.hs, dist/build/Data/Strictness/HT.o )
[16 of 32] Compiling Data.Tuple.Lazy  ( src/Data/Tuple/Lazy.hs, dist/build/Data/Tuple/Lazy.o )
[17 of 32] Compiling Data.Tuple.HT    ( src/Data/Tuple/HT.hs, dist/build/Data/Tuple/HT.o )
[18 of 32] Compiling Data.List.Reverse.StrictSpine ( src/Data/List/Reverse/StrictSpine.hs, dist/build/Data/List/Reverse/StrictSpine.o )
[19 of 32] Compiling Data.String.HT   ( src/Data/String/HT.hs, dist/build/Data/String/HT.o )
[20 of 32] Compiling Data.List.Reverse.StrictElement ( src/Data/List/Reverse/StrictElement.hs, dist/build/Data/List/Reverse/StrictElement.o )
[21 of 32] Compiling Control.Functor.HT ( src/Control/Functor/HT.hs, dist/build/Control/Functor/HT.o )
[22 of 32] Compiling Data.List.Match.Private ( src/Data/List/Match/Private.hs, dist/build/Data/List/Match/Private.o )
[23 of 32] Compiling Data.List.Match  ( src/Data/List/Match.hs, dist/build/Data/List/Match.o )
[24 of 32] Compiling Data.List.HT.Private ( src/Data/List/HT/Private.hs, dist/build/Data/List/HT/Private.o )
[25 of 32] Compiling Data.List.HT     ( src/Data/List/HT.hs, dist/build/Data/List/HT.o )
[26 of 32] Compiling Data.Record.HT.Private ( src/Data/Record/HT/Private.hs, dist/build/Data/Record/HT/Private.o )
[27 of 32] Compiling Data.Record.HT   ( src/Data/Record/HT.hs, dist/build/Data/Record/HT.o )
[28 of 32] Compiling Control.Applicative.HT ( src/Control/Applicative/HT.hs, dist/build/Control/Applicative/HT.o )
[29 of 32] Compiling Data.Tuple.Strict ( src/Data/Tuple/Strict.hs, dist/build/Data/Tuple/Strict.o )
[30 of 32] Compiling Data.Tuple.Example ( src/Data/Tuple/Example.hs, dist/build/Data/Tuple/Example.o )
[31 of 32] Compiling Text.Read.HT     ( src/Text/Read/HT.hs, dist/build/Text/Read/HT.o )
[32 of 32] Compiling Text.Show.HT     ( src/Text/Show/HT.hs, dist/build/Text/Show/HT.o )
> /tmp/stackage-build2451/utility-ht-0.0.14$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2451/utility-ht-0.0.14$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181114/utility-ht-0.0.14-BWOIGcMmaZCHGwnWSG1Ym4
> /tmp/stackage-build2451/utility-ht-0.0.14$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2451/utility-ht-0.0.14$ ./Setup register
Registering library for utility-ht-0.0.14..