Usage of vet:
        vet [flags] directory...
        vet [flags] files... # Must be a single package
For more information run
        godoc golang.org/x/tools/cmd/vet

Flags:
  -all
        check everything; disabled if any explicit check is requested (default true)
  -asmdecl
        check assembly against Go declarations (default unset)
  -assign
        check for useless assignments (default unset)
  -atomic
        check for common mistaken usages of the sync/atomic package (default unset)
  -bool
        check for mistakes involving boolean operators (default unset)
  -buildtags
        check that +build tags are valid (default unset)
  -composites
        check that composite literals used field-keyed elements (default unset)
  -compositewhitelist
        use composite white list; for testing only (default true)
  -copylocks
        check that locks are not passed by value (default unset)
  -methods
        check that canonically named methods are canonically defined (default unset)
  -nilfunc
        check for comparisons between functions and nil (default unset)
  -printf
        check printf-like invocations (default unset)
  -printfuncs string
        comma-separated list of print function names to check
  -rangeloops
        check that range loop variables are used correctly (default unset)
  -shadow
        check for shadowed variables (experimental; must be set explicitly) (default unset)
  -shadowstrict
        whether to be strict about shadowing; can be noisy
  -shift
        check for useless shifts (default unset)
  -structtags
        check that struct field tags have canonical format and apply to exported fields as needed (default unset)
  -tags string
        comma-separated list of build tags to apply when parsing
  -test
        for testing only: sets -all and -shadow
  -unreachable
        check for unreachable code (default unset)
  -unsafeptr
        check for misuse of unsafe.Pointer (default unset)
  -unusedfuncs string
        comma-separated list of functions whose results must be used (default "errors.New,fmt.Errorf,fmt.Sprintf,fmt.Sprint,sort.Reverse")
  -unusedresult
        check for unused result of calls to functions in -unusedfuncs list and methods in -unusedstringmethods list (default unset)
  -unusedstringmethods string
        comma-separated list of names of methods of type func() string whose results must be used (default "Error,String")
  -v    verbose