run golangci-lint
  Running [/home/runner/golangci-lint-2.4.0-linux-amd64/golangci-lint config path] in [/home/runner/work/go-licenses/go-licenses] ...
  Running [/home/runner/golangci-lint-2.4.0-linux-amd64/golangci-lint run] in [/home/runner/work/go-licenses/go-licenses] ...
  Error: e2e_test.go:59:20: Error return value of `os.RemoveAll` is not checked (errcheck)
  	defer os.RemoveAll(tempDir)
  	                  ^
  Error: e2e_test.go:145:20: Error return value of `os.RemoveAll` is not checked (errcheck)
  	defer os.RemoveAll(tempDir)
  	                  ^
  Error: internal/third_party/pkgsite/source/meta-tags.go:57:23: Error return value of `resp.Body.Close` is not checked (errcheck)
  	defer resp.Body.Close()
  	                     ^
  Error: internal/third_party/pkgsite/source/source.go:108:18: Error return value of `resp.Body.Close` is not checked (errcheck)
  		resp.Body.Close()
  		               ^
  Error: internal/third_party/pkgsite/source/source.go:458:17: Error return value of `res.Body.Close` is not checked (errcheck)
  		res.Body.Close()
  		              ^
  Error: internal/third_party/pkgsite/source/source_test.go:48:24: Error return value of `res.Body.Close` is not checked (errcheck)
  			defer res.Body.Close()
  			                    ^
  Error: licenses/classifier.go:58:18: Error return value of `file.Close` is not checked (errcheck)
  	defer file.Close()
  	                ^
  Error: licenses/library_test.go:145:14: Error return value of `os.Setenv` is not checked (errcheck)
  				os.Setenv("GOFLAGS", test.goflags)
  				         ^
  Error: licenses/library_test.go:146:22: Error return value of `os.Unsetenv` is not checked (errcheck)
  				defer os.Unsetenv("GOFLAGS")
  				                 ^
  Error: save.go:85:10: Error return value of `d.Close` is not checked (errcheck)
  		d.Close()
  		       ^
  Error: internal/third_party/pkgsite/derrors/derrors.go:18:2: ST1012: error var NotFound should have name of the form ErrFoo (staticcheck)
  	NotFound = errors.New("not found")
  	^
  Error: internal/third_party/pkgsite/derrors/derrors.go:22:2: ST1012: error var InvalidArgument should have name of the form ErrFoo (staticcheck)
  	InvalidArgument = errors.New("invalid argument")
  	^
  Error: internal/third_party/pkgsite/source/meta-tags.go:94:5: QF1001: could apply De Morgan's law (staticcheck)
  				!(len(importPath) == len(repoRootPrefix) || importPath[len(repoRootPrefix)] == '/') {
  				^
  13 issues:
  * errcheck: 10
  * staticcheck: 3
  
  Error: issues found
  Ran golangci-lint in 21967ms