import comm::*;
fn main() {
let v = ~[1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
let arc_v = arc::arc(v);
do task::spawn() |move arc_v| { //~ NOTE move of variable occurred here
let v = *arc::get(&arc_v);
assert v[3] == 4;
};
assert (*arc::get(&arc_v))[2] == 3; //~ ERROR use of moved variable: `arc_v`
log(info, arc_v);
}