go - Why there is no error that receiver is blocked?

Question

According to Go documentation:

Receivers always block until there is data to receive

This test should fail, because for last receiving operation from a channel there is no corresponding write :

package main

import "fmt"

func main() {
    c := make(chan int)    
    for i := 0; i < 4; i++ { // 4 async reads
      go func() {
            fmt.Println("received:", <-c)
         }()

    }    
    // just 3 writes, 1 write is missing
    c <- 1   
    c <- 2 
    c <- 3   
}

However script not fails with error message in read goroutine, but it succeeds printing 3 values :

received: 1
received: 2
received: 3

Why it is so, or I misunderstood something about synchronization ?

Answer 1

Waitting for answers