Re: Bug#930856: autopkgtest-build-qemu: captures something from host

[Dmitry Bogatov <KAction@debian.org>]

[ After futher investigation, this command fails with same error directly,
 without autopkgtest, so reassigning ]

control: reassing -1 debootstrap
control: retitle -1 debootstrap uses wrong keyring

Dear maintainer of debootstrap, I can't create chroot due following error:

  # debootstrap --variant - unstable /tmp/foo.dir http://deb.debian.org
  I: Checking Release signature
  E: Release signed by unknown key (key id 04EE7237B7D453EC)
     The specified keyring /usr/share/keyrings/devuan-archive-keyring.gpg may be incorrect or out of date.
     You can find the latest Debian release key at https://ftp-master.debian.org/keys.html

Note that APT tries to use Devuan keyring to validate Debian release and
fail. How does `debootstrap' decides, which keyring to use?

I am aware about --keyring option, original bug was about
`autopkgtest-build-qemu', which invokes debootstrap through several
layers and does not allow passing additional arguments to `debootstrap'.
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