Output for go tip and 1.03 on OS X 10.7

$ go version && go run test.go 
go version devel +87f67aadaed6 Sat Dec 22 17:41:00 2012 -0800 darwin/amd64
Test1: 0
Test1: 0
Test1: 0
Test1: 0
Test1: 0
Test1: 0
Test1: 0
Test1: 0
Test1: 0
Test1: 0
Test2: 0
Test2: 1
Test2: 2
Test2: 3
Test2: 4
Test2: 5
Test2: 6
Test2: 7
Test2: 8
Test2: 9

$ go version && go run test.go 
go version go1.0.3
Test1: 0
Test1: 1
Test1: 2
Test1: 3
Test1: 4
Test1: 5
Test1: 6
Test1: 7
Test1: 8
Test1: 9
Test2: 0
Test2: 1
Test2: 2
Test2: 3
Test2: 4
Test2: 5
Test2: 6
Test2: 7
Test2: 8
Test2: 9

test.go

package main

import (
	"fmt"
	"time"
)

type Map map[time.Time]int
type Slice []time.Time

func test1(m Map, s Slice, c chan int) {
	ticker := time.NewTicker(time.Millisecond)
	for _, v := range s {
		c <- m[v]
		<-ticker.C
	}
	close(c)
}

func test2(m Map, s Slice, c chan int) {
	for _, v := range s {
		c <- m[v]
		time.Sleep(time.Millisecond)
	}
	close(c)
}

func main() {
	m := make(Map)
	s := make(Slice, 0)
	for i := 0; i < 10; i++ {
		now := time.Now()
		m[now] = i
		s = append(s, now)

	}
	c1 := make(chan int)
	go test1(m, s, c1)
	for i := range c1 {
		fmt.Println("Test1:", i)
	}
	c2 := make(chan int)
	go test2(m, s, c2)
	for i := range c2 {
		fmt.Println("Test2:", i)
	}
}