autopkgtest fails in hirsute

https://autopkgtest.ubuntu.com/packages/p/pollen/hirsute/amd64

https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-hirsute/hirsute/amd64/p/pollen/20210316_172019_6aa64@/log.gz
...
   dh_auto_test
 make -j1 test
make[1]: Entering directory '/tmp/autopkgtest.Jxqs4u/autopkgtest_tmp'
go test
go: go.mod file not found in current directory or any parent directory; see 'go help modules'
make[1]: *** [Makefile:11: test] Error 1
dh_auto_test: error: make -j1 test returned exit code 2
make[1]: Leaving directory '/tmp/autopkgtest.Jxqs4u/autopkgtest_tmp'
make: *** [debian/rules:6: build] Error 25
autopkgtest [17:19:49]: test dh-golang-autopkgtest: -----------------------]
dh-golang-autopkgtest FAIL non-zero exit status 2
...