package main

import "regexp"

func main() {
	r, _ := regexp.Compile(`(?m)^ambiguous import: found package image in multiple modules:\s+image\s+.+\\(`)
	println(r.FindString(`ambiguous import: found package image in multiple modules:
	image ($WORK/gopath/src/a)
	 (/Users/xiecui/code/go/src/go/src/image)
`))
}

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x2 addr=0x90 pc=0x100f15500]

goroutine 1 [running]:
regexp.(*Regexp).doExecute(0x100f1ffca?, {0x0?, 0x0?}, {0x0?, 0x1010585b8?, 0x1400008c011?}, {0x100f20068?, 0x14000002228?}, 0x1400009cf28?, 0x100ea4064?, ...)
        /Users/xiecui/code/go/src/go/src/regexp/exec.go:527 +0x50
regexp.(*Regexp).FindString(0x100f1ffca?, {0x100f20068, 0x82})
        /Users/xiecui/code/go/src/go/src/regexp/regexp.go:852 +0x5c
main.main()
        /Users/xiecui/code/go/go_compiler/code/so/a.go:7 +0x40