[Pkg-uml-pkgs] Bug#880304: user-mode-linux: FTBFS: build-dependency not installable: linux-source-4.9

[Lucas Nussbaum]

Source: user-mode-linux
Version: 4.9-1um-1
Severity: serious
Tags: buster sid
User: debian-qa at lists.debian.org
Usertags: qa-ftbfs-20171030 qa-ftbfs
Justification: FTBFS on amd64

Hi,

During a rebuild of all packages in sid, your package failed to build on
amd64.

Relevant part (hopefully):
> +------------------------------------------------------------------------------+
> | Install package build dependencies                                           |
> +------------------------------------------------------------------------------+
> 
> 
> Setup apt archive
> -----------------
> 
> Merged Build-Depends: debhelper (>> 9.0.0), quilt, linux-source-4.9, docbook-to-man, xz-utils, m4, kmod, libvdeplug2-dev, libpcap-dev, bc, dpkg (>= 1.16.2), libssl-dev
> Filtered Build-Depends: debhelper (>> 9.0.0), quilt, linux-source-4.9, docbook-to-man, xz-utils, m4, kmod, libvdeplug2-dev, libpcap-dev, bc, dpkg (>= 1.16.2), libssl-dev
> dpkg-deb: building package 'sbuild-build-depends-user-mode-linux-dummy' in '/<<BUILDDIR>>/resolver-UyZ5I0/apt_archive/sbuild-build-depends-user-mode-linux-dummy.deb'.
> dpkg-scanpackages: warning: Packages in archive but missing from override file:
> dpkg-scanpackages: warning:   sbuild-build-depends-core-dummy sbuild-build-depends-user-mode-linux-dummy
> dpkg-scanpackages: info: Wrote 2 entries to output Packages file.
> Ign:1 copy:/<<BUILDDIR>>/resolver-UyZ5I0/apt_archive ./ InRelease
> Get:2 copy:/<<BUILDDIR>>/resolver-UyZ5I0/apt_archive ./ Release [963 B]
> Ign:3 copy:/<<BUILDDIR>>/resolver-UyZ5I0/apt_archive ./ Release.gpg
> Get:4 copy:/<<BUILDDIR>>/resolver-UyZ5I0/apt_archive ./ Sources [576 B]
> Get:5 copy:/<<BUILDDIR>>/resolver-UyZ5I0/apt_archive ./ Packages [661 B]
> Fetched 2200 B in 0s (0 B/s)
> Reading package lists...
> Reading package lists...
> 
> Install user-mode-linux build dependencies (apt-based resolver)
> ---------------------------------------------------------------
> 
> Installing build dependencies
> Reading package lists...
> Building dependency tree...
> Reading state information...
> Some packages could not be installed. This may mean that you have
> requested an impossible situation or if you are using the unstable
> distribution that some required packages have not yet been created
> or been moved out of Incoming.
> The following information may help to resolve the situation:
> 
> The following packages have unmet dependencies:
>  sbuild-build-depends-user-mode-linux-dummy : Depends: linux-source-4.9 but it is not installable
> E: Unable to correct problems, you have held broken packages.
> apt-get failed.

The full build log is available from:
   http://aws-logs.debian.net/2017/10/30/user-mode-linux_4.9-1um-1_unstable.log

A list of current common problems and possible solutions is available at
http://wiki.debian.org/qa.debian.org/FTBFS . You're welcome to contribute!

About the archive rebuild: The rebuild was done on EC2 VM instances from
Amazon Web Services, using a clean, minimal and up-to-date chroot. Every
failed build was retried once to eliminate random failures.