package main

import (
    "fmt"
    "time"
)

func change(c chan float64) float64 {
    time.Sleep(2 * time.Second)
    return 2.5
}

func main() {

    s := 1.1

    c := make(chan float64)
    go change(c)
    s = <-c

    for {
        fmt.Println(s)
        time.Sleep(100 * time.Millisecond)
    }
}

fatal error: all goroutines are asleep - deadlock!

goroutine 1 [chan receive]:
main.main()
        /home/kramer65/repos/go/src/messing_around/main.go:19 +0x7d
exit status 2