[short] skip

! go test .
stdout '^panic: testing: fuzz target must not return a value \[recovered\]$'

-- go.mod --
module test
go 1.18
-- x_test.go --
package test

import "testing"

func FuzzReturnErr(f *testing.F) {
	f.Add("hello, validation!")
	f.Fuzz(func(t *testing.T, in string) string {
		return in
	})
}