exec go build
exec ./main
cmp stdout main.stdout-orig
bingrep main$exe '\(devel\)'

garble build
exec ./main
cmp stdout main.stdout
! bingrep main$exe '\(devel\)'

-- go.mod --
module foo.com/main
-- main.go --
package main

import (
	"fmt"
	"runtime/debug"
)

func main() {
	fmt.Println(debug.ReadBuildInfo())
}
-- main.stdout-orig --
&{foo.com/main {foo.com/main (devel)  <nil>} []} true
-- main.stdout --
<nil> false