The error must be elsewhere in the go infrastructure, possibly in the dh go addon (dh-golang) which generates "go test" for dh_auto_test.
This doesn't seem to be a bug in the package. It just declares "vet" as
a cli.Command in build.go.
- Bug#997557: golang-github-urfave-cli-v2: FTBFS:... Lucas Nussbaum
- Bug#997557: Bug #997557: golang-github-urf... Drew Parsons
- Bug#997557: golang-github-urfave-cli-v... Shengjing Zhu
- Bug#997557: marked as done (golang-github-... Debian Bug Tracking System