Two Failing Test Cases in HEAD

In a freshly cloned GHC code base (c6462ab0...), in my system,make test TEST="T13780c T13822" fails.That is while ./validate passes.

Specifically, I follow the following steps:

1. git clone --recursive git://git.haskell.org/ghc.git
2. cd ghc
3. cp mk/build.mk.sample mk/build.mk
4. set BuildFlavour = devel2 and then
5. ./boot
6. ./configure
7. make -j4
8. make test TEST="T13780c T13822"

I build in a variant of the docker image for GHC development on Linux (64 bit), if it matters.

As it seems, @alanz also gets the similar result on his system.