The build is unreachable.

Build log

> /tmp/stackage-build2452$ stack unpack tls-1.4.1@sha256:10087515f118d29938c3442b1255c10e0c866efa3639b3813dfb9755a8f89d86
Unpacked tls-1.4.1 to /tmp/stackage-build2452/tls-1.4.1/
> /tmp/stackage-build2452/tls-1.4.1$ 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-build2452/tls-1.4.1$ ./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/tls-1.4.1 --htmldir=/home/circleci/project/builds/nightly/doc/tls-1.4.1 --haddockdir=/home/circleci/project/builds/nightly/doc/tls-1.4.1
Configuring tls-1.4.1...
> /tmp/stackage-build2452/tls-1.4.1$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2452/tls-1.4.1$ ./Setup build
Preprocessing library for tls-1.4.1..
Building library for tls-1.4.1..
[ 1 of 52] Compiling Network.TLS.Crypto.Types ( Network/TLS/Crypto/Types.hs, dist/build/Network/TLS/Crypto/Types.o )
[ 2 of 52] Compiling Network.TLS.ErrT ( Network/TLS/ErrT.hs, dist/build/Network/TLS/ErrT.o )
[ 3 of 52] Compiling Network.TLS.Imports ( Network/TLS/Imports.hs, dist/build/Network/TLS/Imports.o )
[ 4 of 52] Compiling Network.TLS.Backend ( Network/TLS/Backend.hs, dist/build/Network/TLS/Backend.o )
[ 5 of 52] Compiling Network.TLS.Measurement ( Network/TLS/Measurement.hs, dist/build/Network/TLS/Measurement.o )
[ 6 of 52] Compiling Network.TLS.RNG  ( Network/TLS/RNG.hs, dist/build/Network/TLS/RNG.o )
[ 7 of 52] Compiling Network.TLS.Crypto.DH ( Network/TLS/Crypto/DH.hs, dist/build/Network/TLS/Crypto/DH.o )
[ 8 of 52] Compiling Network.TLS.Extra.FFDHE ( Network/TLS/Extra/FFDHE.hs, dist/build/Network/TLS/Extra/FFDHE.o )
[ 9 of 52] Compiling Network.TLS.Types ( Network/TLS/Types.hs, dist/build/Network/TLS/Types.o )
[10 of 52] Compiling Network.TLS.Session ( Network/TLS/Session.hs, dist/build/Network/TLS/Session.o )
[11 of 52] Compiling Network.TLS.Compression ( Network/TLS/Compression.hs, dist/build/Network/TLS/Compression.o )
[12 of 52] Compiling Network.TLS.Cap  ( Network/TLS/Cap.hs, dist/build/Network/TLS/Cap.o )
[13 of 52] Compiling Network.TLS.Util ( Network/TLS/Util.hs, dist/build/Network/TLS/Util.o )
[14 of 52] Compiling Network.TLS.Util.ASN1 ( Network/TLS/Util/ASN1.hs, dist/build/Network/TLS/Util/ASN1.o )
[15 of 52] Compiling Network.TLS.Util.Serialization ( Network/TLS/Util/Serialization.hs, dist/build/Network/TLS/Util/Serialization.o )
[16 of 52] Compiling Network.TLS.Crypto.IES ( Network/TLS/Crypto/IES.hs, dist/build/Network/TLS/Crypto/IES.o )
[17 of 52] Compiling Network.TLS.Crypto ( Network/TLS/Crypto.hs, dist/build/Network/TLS/Crypto.o )
[18 of 52] Compiling Network.TLS.Struct ( Network/TLS/Struct.hs, dist/build/Network/TLS/Struct.o )
[19 of 52] Compiling Network.TLS.MAC  ( Network/TLS/MAC.hs, dist/build/Network/TLS/MAC.o )
[20 of 52] Compiling Network.TLS.Cipher ( Network/TLS/Cipher.hs, dist/build/Network/TLS/Cipher.o )
[21 of 52] Compiling Network.TLS.Extra.Cipher ( Network/TLS/Extra/Cipher.hs, dist/build/Network/TLS/Extra/Cipher.o )
[22 of 52] Compiling Network.TLS.Extra ( Network/TLS/Extra.hs, dist/build/Network/TLS/Extra.o )
[23 of 52] Compiling Network.TLS.Wire ( Network/TLS/Wire.hs, dist/build/Network/TLS/Wire.o )
[24 of 52] Compiling Network.TLS.Packet ( Network/TLS/Packet.hs, dist/build/Network/TLS/Packet.o )
[25 of 52] Compiling Network.TLS.Record.State ( Network/TLS/Record/State.hs, dist/build/Network/TLS/Record/State.o )
[26 of 52] Compiling Network.TLS.Record.Types ( Network/TLS/Record/Types.hs, dist/build/Network/TLS/Record/Types.o )
[27 of 52] Compiling Network.TLS.Record.Engage ( Network/TLS/Record/Engage.hs, dist/build/Network/TLS/Record/Engage.o )
[28 of 52] Compiling Network.TLS.Record.Disengage ( Network/TLS/Record/Disengage.hs, dist/build/Network/TLS/Record/Disengage.o )
[29 of 52] Compiling Network.TLS.Record ( Network/TLS/Record.hs, dist/build/Network/TLS/Record.o )
[30 of 52] Compiling Network.TLS.Handshake.State ( Network/TLS/Handshake/State.hs, dist/build/Network/TLS/Handshake/State.o )
[31 of 52] Compiling Network.TLS.Extension ( Network/TLS/Extension.hs, dist/build/Network/TLS/Extension.o )
[32 of 52] Compiling Network.TLS.State ( Network/TLS/State.hs, dist/build/Network/TLS/State.o )
[33 of 52] Compiling Network.TLS.X509 ( Network/TLS/X509.hs, dist/build/Network/TLS/X509.o )
[34 of 52] Compiling Network.TLS.Hooks ( Network/TLS/Hooks.hs, dist/build/Network/TLS/Hooks.o )
[35 of 52] Compiling Network.TLS.Credentials ( Network/TLS/Credentials.hs, dist/build/Network/TLS/Credentials.o )
[36 of 52] Compiling Network.TLS.Parameters ( Network/TLS/Parameters.hs, dist/build/Network/TLS/Parameters.o )
[37 of 52] Compiling Network.TLS.Context.Internal ( Network/TLS/Context/Internal.hs, dist/build/Network/TLS/Context/Internal.o )
[38 of 52] Compiling Network.TLS.Sending ( Network/TLS/Sending.hs, dist/build/Network/TLS/Sending.o )
[39 of 52] Compiling Network.TLS.Receiving ( Network/TLS/Receiving.hs, dist/build/Network/TLS/Receiving.o )
[40 of 52] Compiling Network.TLS.IO   ( Network/TLS/IO.hs, dist/build/Network/TLS/IO.o )
[41 of 52] Compiling Network.TLS.Handshake.Key ( Network/TLS/Handshake/Key.hs, dist/build/Network/TLS/Handshake/Key.o )
[42 of 52] Compiling Network.TLS.Handshake.Signature ( Network/TLS/Handshake/Signature.hs, dist/build/Network/TLS/Handshake/Signature.o )
[43 of 52] Compiling Network.TLS.Handshake.Process ( Network/TLS/Handshake/Process.hs, dist/build/Network/TLS/Handshake/Process.o )
[44 of 52] Compiling Network.TLS.Handshake.Common ( Network/TLS/Handshake/Common.hs, dist/build/Network/TLS/Handshake/Common.o )
[45 of 52] Compiling Network.TLS.Handshake.Certificate ( Network/TLS/Handshake/Certificate.hs, dist/build/Network/TLS/Handshake/Certificate.o )
[46 of 52] Compiling Network.TLS.Handshake.Client ( Network/TLS/Handshake/Client.hs, dist/build/Network/TLS/Handshake/Client.o )

Network/TLS/Handshake/Client.hs:273:13: warning: [-Wincomplete-patterns]
    Pattern match(es) are non-exhaustive
    In a case alternative: Patterns not matched: (PrivKeyEC _)
    |
273 |             case pk of
    |             ^^^^^^^^^^...
[47 of 52] Compiling Network.TLS.Handshake.Server ( Network/TLS/Handshake/Server.hs, dist/build/Network/TLS/Handshake/Server.o )
[48 of 52] Compiling Network.TLS.Handshake ( Network/TLS/Handshake.hs, dist/build/Network/TLS/Handshake.o )
[49 of 52] Compiling Network.TLS.Context ( Network/TLS/Context.hs, dist/build/Network/TLS/Context.o )
[50 of 52] Compiling Network.TLS.Core ( Network/TLS/Core.hs, dist/build/Network/TLS/Core.o )
[51 of 52] Compiling Network.TLS.Internal ( Network/TLS/Internal.hs, dist/build/Network/TLS/Internal.o )
[52 of 52] Compiling Network.TLS      ( Network/TLS.hs, dist/build/Network/TLS.o )
> /tmp/stackage-build2452/tls-1.4.1$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2452/tls-1.4.1$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181122/tls-1.4.1-2TaGXx1uKZn4VI7vpdmUpl
> /tmp/stackage-build2452/tls-1.4.1$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2452/tls-1.4.1$ ./Setup register
Registering library for tls-1.4.1..