Arbitrary test timeout is too short for polkitbackendjsauthority
From a Debian x86_64 autobuilder log:
1/5 polkitunixusertest OK 0.01s 2/5 polkitunixgrouptest OK 0.01s 3/5 polkitunixnetgrouptest OK 0.01s 4/5 polkitidentitytest OK 0.01s 5/5 test-polkitbackendjsauthority OK 26.41s
This is uncomfortably close to Meson's 30s default timeout: even on x86, it would only take a small amount of extra load (or a slightly slower CPU?) to make this test time out. On slower CPU architectures like mips and riscv64, it does time out.
It would probably be a good idea to raise this timeout, perhaps to more like 2 minutes.