What version of Go are you using (go version)?

go 1.6

What operating system and processor architecture are you using (go env)?

linux/amd64

What did you do?
If possible, provide a recipe for reproducing the error.
A complete runnable program is good.
A link on play.golang.org is best.

Consider a program like the following (play.golang.org link):

package main

import (
    "fmt"
    "sync/atomic"
)

func main() {
    var c int64
    for i := 0; i < 10; i++ {
        go func() {
            for {
                c := atomic.AddInt64(&c, 1)
                if c%10000000 == 0 {
                    fmt.Println(c)
                }
            }
        }()
    }
    select {}
}

What did you expect to see?

Since the c in the inner function is a different c from the outer atomic counter, I expected vet to not complain.

What did you see instead?

go vet gives the following output:

test.go:13: direct assignment to atomic value