I'm trying to track down a problem in a rawhide based container that I'm doing upstream tests of bash-completion with. All executability checks done with bash builtins return with a non-zero value in it.

Reproducer:

$ docker pull vskytta/bash-completion:fedoradev
$ docker run --rm -it vskytta/bash-completion:fedoradev bash
# test -x /; echo $?
1
# [[ -x /bin/bash ]]; echo $?
1
# [ -x /usr/bin/env ]; echo $?
1

zsh is not affected, works fine. Ditto /usr/bin/test. Just the bash builtins seem to have the issue.

Dockerfile etc for the container:
https://github.com/scop/bash-completion/tree/docker-fedoradev

My docker host is Ubuntu 18.04.

The vanilla fedora:rawhide image is not affected. Something in my image provokes this, but I'm kind of out of good ideas where to start the hunt. One idea would be to bisect the image build by slimming the installed package set gradually but that's a slow process, I'd hope there's a quicker/more straightforward way that could be tried first.