build-edge-x86 has broken abuild
According to Carlo, it runs 3.4.0_rc4-r0.
However, it is not respecting the cleanup_srcdir function in community/caddy, causing a huge srcdir cleanup mess.
Go modules default by writing readonly files, and removing them as non-root requires either recursive chroot or `go clean
be ran usually done in cleanup_srcdir (which can be overriden as of
a patch that was applied this winter).
However, this is obviously not happening on that builder, for whatever reason.
(from redmine: issue id 10485, created on 2019-05-24, closed on 2019-05-24)