go list -e -deps -f '{{.ImportPath}}: {{.Error}}' ./importvendor
stdout 'importvendor: importvendor[\\/]p.go:2:8: vendor/p must be imported as p'
stdout 'vendor/p: <nil>'

go list -e -deps -f '{{.ImportPath}}: {{.Error}}' ./importinternal
stdout 'importinternal: package importinternal\n\timportinternal[\\/]p.go:2:8: use of internal package other/internal/p not allowed'
stdout 'other/internal/p: <nil>'
-- importvendor/p.go --
package importvendor

	_ "golang.org/x/net/http2/hpack"
)

-- importcmd/go.mod --
module importcmd
-- importcmd/x.go --
package importcmd

import _ "cmd/vendor/golang.org/x/tools/go/analysis"
-- importstd/go.mod --
module importvendor
-- importstd/x.go --
package importstd