message: Add an upper limit to number of recently accessed releases that will be tracked
diff: @@ -91,6 +91,11 @@ impl RecentlyAccessedReleases {
  }
  pub(crate) fn record(&self, krate: i32, version: i32, target: &str) {
  + if self.platforms.len() > 100_000 {
  + // Avoid filling the maps _too_ much, we should never get anywhere near this limit
  + return;
  + }
  +
  let now = Instant::now();
  self.crates.insert(krate, now);
  self.versions.insert(version, now);
  