Created attachment 813907 [details]
=dev-ml/opam-format-2.1.2-r1 fails its tests for me. Early in the diff showing each failure, I note that in the "actual" output, there was the line "bwrap: setting up uid map: Permission denied". Before that, in the part of the log that's hard to search in "less" because of the control characters, there's this:
[ERROR] Sandboxing is not working on your platform gentoo:
build sh -c echo SUCCESS >$TMPDIR/opam-sandbox-check-out && cat $TMPDIR/opam-sandbox-check-out;
rm -f $TMPDIR/opam-sandbox-check-out" exited with code 1 "bwrap: setting up uid map: Permission
I tried running without FEATURES=userpriv, which added lots of failures because of warnings about running the testsuite as root, as well as one message from bwrap about failing to mkdir /proc (in a sandboxed environment, I presume).
Then I tried running without FEATURES=sandbox and FEATURES=usersandbox, and while tests still failed it looks like mostly tests that try to fetch test data from Github. I'll attach that build log as well.
Created attachment 813910 [details]
Created attachment 813913 [details]
I just noticed bug #838658; that may be the cause of the tests failing when the sandbox is enabled.