On Sat, Oct 06, 2018 at 07:05:20PM +0200, Gábor Boskovits wrote:
> I have found a possible source of the references.
> In the package output, in the pkg/obj/go-build directory there are a huge
> amount of
> test logs, and the bootstrap go is stat-ed during these tests.
> See for example the file pkg/obj/go-build/f7/f749...

Thank you, this was exactly the problem!

Fixed with commit b3325eb306b33541edcb343d75d8457624744375.