Fix seed thread crash
We get overflow in some tests, peraps in real life too
Fixes
@@ -409,7 +409,9 @@ impl Peers {
}
// ensure we do not still have too many connected peers
- let excess_count = (self.peer_count() as usize - rm.len()).saturating_sub(max_count);
+ let excess_count = (self.peer_count() as usize)
+ .saturating_sub(rm.len())
+ .saturating_sub(max_count);
if excess_count > 0 {
// map peers to addrs in a block to bound how long we keep the read lock for
let mut addrs = self
