ftbfs with golang-1.16

[Brian Murray]

In https://launchpadlibrarian.net/551476957/buildlog_ubuntu-impish-amd64.piuparts_1.1.4_BUILDING.txt.gz we can see the following:

touch build-stamp
(cd helpers/debiman-piuparts-distill && go build)
go: go.mod file not found in current directory or any parent directory; see 'go help modules'
make[2]: *** [Makefile:61: build-master-stamp] Error 1
make[2]: Leaving directory '/<<PKGBUILDDIR>>'
make[1]: *** [debian/rules:12: override_dh_auto_build] Error 2
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:9: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2

This happens with piuparts version 1.1.4 and a test rebuild of 1.12 using golang-go (which depends on golang-1.16-go) also failed.

Modifying piuparts to build with golang-1.15-go causes the build to succeed.

[Brian Murray (brian-murray)]

I've forwarded the attached patch to Debian.

[Brian Murray (brian-murray)]

piuparts (1.1.5) unstable; urgency=medium

  [ Nicolas Dandrimont ]
  * pejacevic: update enabled suites for bullseye as stable, bookworm as
    testing.
  * Add news for the bullseye update.
  * Fix perjacevic typo in docs.

  [ David Steele ]
  * Remove oldstable results from summary.json.

  [ Athos Ribeiro ]
  * d/rules: set GO111MODULE to auto to maintain pre Go 1.16 behavior. Closes: #991970.
    (MR: debian/piuparts!35)

 -- Holger Levsen <email address hidden> Thu, 14 Oct 2021 15:23:26 +0200