On the debian/sid branch, bin/dh_golang line 80 calls $bs->set_go_env(),
which https://salsa.debian.org/go-team/dh-go/-/commit/260d81a removed from
lib/Debian/Debhelper/Buildsystem/golang.pm. Every package that reaches
dh_golang through the golang sequence then fails with

  Can't locate object method "set_go_env" via package
  "Debian::Debhelper::Buildsystem::golang" at /usr/bin/dh_golang line 80.

1.68 in unstable is unaffected, so this only needs fixing before 1.69.
Please apply the patch below. It restores the method as a wrapper and
leaves the behaviour of pre_building_step() unchanged.
--- a/lib/Debian/Debhelper/Buildsystem/golang.pm
+++ b/lib/Debian/Debhelper/Buildsystem/golang.pm
@@ -351,7 +351,16 @@

     $this->SUPER::pre_building_step(@_);

-    # Set up the golang build environment
+    $this->set_go_env();
+
+    return;
+}
+
+# Set up the golang build environment. Also called directly by dh_golang,
+# which does not run a build step.
+sub set_go_env {
+    my $this = shift;
+
     $this->_set_dh_gopkg();
     $this->_set_gopath();
     $this->_set_gocache();

We believe that the bug you reported is fixed in the latest version of
dh-go, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1149945@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Dr. Tobias Quathamer <toddy@debian.org> (supplier of updated dh-go package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Mon, 05 Oct 2026 17:07:15 +0200
Source: dh-go
Architecture: source
Version: 1.69
Distribution: unstable
Urgency: medium
Maintainer: Debian Go Packaging Team <team+pkg-go@tracker.debian.org>
Changed-By: Dr. Tobias Quathamer <toddy@debian.org>
Closes: 1148172 1149022 1149945
Changes:
 dh-go (1.69) unstable; urgency=medium
 .
   [ Dr. Tobias Quathamer ]
   * Check that XS-Go-Import-Path is equal to module path from go.mod
   * Do not remove dh_dwz from build sequence in compat >= 14
   * Revert "Move setup of golang build environment into pre_building_step()"
     Thanks to Juan Manuel Mendez Rey <juan.mendezr@proton.me> (Closes: #1149945)
   * Update example to use debhelper v14
   * Run perltidy
   * Strip comments from go.mod (Closes: #1149022)
   * Use debhelper v14
 .
   [ Juan Manuel Méndez Rey ]
   * Keep symlinks when copying sources.
     Three file tests follow the link they are given, so symlinks to directories
     and dangling symlinks are silently dropped:
       - the DH_GOLANG_INSTALL_EXTRA walk in configure uses -f, which is false
         for a directory and for a broken link;
       - the main source walk in configure uses -e, which is false for a broken
         link;
       - install uses -d before the branch that recreates a symlink, so a link
         to a directory returns early, and File::Find does not descend into it
         either, so the subtree goes too.
     Test suites ship both kinds deliberately. The first of the three is
https://bugs.debian.org/842755, reported in 2016 and still open.
   * Follow requirements of modules installed under another path
   * Follow requirements of every module in go.work
     _create_go_work_file only walked the requirements of the main module
     (DH_GOPKG). A multi-module repository whose root module requires nothing,
     such as github.com/GoogleCloudPlatform/opentelemetry-operations-go, lists
     its submodules in go.work but their requirements were never followed, so
     modules they need (for example the requirements of grpc-gateway/v2) were
     neither replaced nor stubbed and target expansion failed with "module
     lookup disabled by GOPROXY=off".
     Seed the walk with the requirements of every module written as a use
     directive as well.
   * Sequence: fix inverted compat guard around dh_dwz removal.
     The guard removes dh_dwz at compat >= 14, where debhelper does not run it
     anyway, and leaves it in the sequence at compat 13, where it does run and
     fails on Go binaries with 'Unknown debugging section .debug_addr'.
     (Closes: #1148172)
   * Write a go directive into generated minimal go.mod files
   * Create go.work from the raw build packages, not from go list
     _create_go_work_file() expanded DH_GOLANG_BUILDPKG with get_targets(),
     which shells out to `go list`. That cannot work there: the workspace
     `go list` needs is the file being written, so any pattern ends up
     contributing nothing and the resulting go.work has no use directive.
     A multi-module package that passes bare module paths to
     dh_auto_configure and "module/..." patterns to dh_auto_build hits this
     whenever the workspace is missing at build time, which is what
     dh_golang_autopkgtest arranges: it disables override_dh_auto_configure
     and injects one that only copies the installed sources. The build then
     fails with "matched no packages" for every pattern, followed by "go: no
     modules were found in the current workspace".
     Strip a trailing /... from each entry instead and let the existing loop
     locate the go.mod files; for bare paths the result is unchanged.
Checksums-Sha1:
 996d3a936bade7f443dabb0ed5213cb2ade1a6a2 1726 dh-go_1.69.dsc
 71a7f0119cfbf517ddfe7aed0ead8b1d9b202828 28784 dh-go_1.69.tar.xz
 423be35487bdb0acb6197cab87595ebfa4f8b62e 5238 dh-go_1.69_amd64.buildinfo
Checksums-Sha256:
 d4a756fac2d0f5a65abc52a201937538538ee2b99ef838befa35130e44be8db3 1726 dh-go_1.69.dsc
 0a53d9a7d3fbe1607a750a4e3969584899b56a0f6a4d088ef2d70c0b07e0e5c3 28784 dh-go_1.69.tar.xz
 ba1171901fd78328c802cdc9c97b4ff9c3f3118c6b0e35166182f7eb3ad59f46 5238 dh-go_1.69_amd64.buildinfo
Files:
 67e8ff558c5e9cb82c2582eb452996b9 1726 golang optional dh-go_1.69.dsc
 43fcd49b19887cb9d0a52fe38405fcf9 28784 golang optional dh-go_1.69.tar.xz
 e985b5e364dd3bc5f023f6b70b34bc21 5238 golang optional dh-go_1.69_amd64.buildinfo
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