Dec 18 12:29:50.124 INFO checking reactor-cache-0.1.1 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 12:29:50.124 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/reactor-cache/0.1.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 12:29:50.636 INFO [stdout] d539180d019ab8bcc676080205e7ddbedb992376e2e3434b7bbc97ab0d57b6fa
Dec 18 12:29:50.644 INFO running `"docker" "start" "-a" "d539180d019ab8bcc676080205e7ddbedb992376e2e3434b7bbc97ab0d57b6fa"`
Dec 18 12:29:52.654 INFO [stderr]     Checking reactor-cache v0.1.1 (/opt/crater/workdir)
Dec 18 12:29:53.908 INFO [stderr] warning: use of deprecated item 'mio::timer::Builder': use mio-extras instead
Dec 18 12:29:53.908 INFO [stderr]   --> src/cache.rs:13:18
Dec 18 12:29:53.908 INFO [stderr]    |
Dec 18 12:29:53.908 INFO [stderr] 13 | use mio::timer::{Builder as TimerBuilder, Timer};
Dec 18 12:29:53.908 INFO [stderr]    |                  ^^^^^^^
Dec 18 12:29:53.908 INFO [stderr]    |
Dec 18 12:29:53.908 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 18 12:29:53.908 INFO [stderr] 
Dec 18 12:29:53.908 INFO [stderr] warning: use of deprecated item 'mio::timer::Timer': use mio-extras instead
Dec 18 12:29:53.908 INFO [stderr]   --> src/cache.rs:13:43
Dec 18 12:29:53.908 INFO [stderr]    |
Dec 18 12:29:53.908 INFO [stderr] 13 | use mio::timer::{Builder as TimerBuilder, Timer};
Dec 18 12:29:53.908 INFO [stderr]    |                                           ^^^^^
Dec 18 12:29:53.908 INFO [stderr] 
Dec 18 12:29:53.908 INFO [stderr] warning: use of deprecated item 'mio::timer::Timer': use mio-extras instead
Dec 18 12:29:53.908 INFO [stderr]   --> src/cache.rs:70:24
Dec 18 12:29:53.908 INFO [stderr]    |
Dec 18 12:29:53.908 INFO [stderr] 70 |     timer: PollEvented<Timer<()>>,
Dec 18 12:29:53.908 INFO [stderr]    |                        ^^^^^^^^^
Dec 18 12:29:53.908 INFO [stderr] 
Dec 18 12:29:53.908 INFO [stderr] warning: use of deprecated item 'mio::timer::Builder': use mio-extras instead
Dec 18 12:29:53.908 INFO [stderr]    --> src/cache.rs:172:25
Dec 18 12:29:53.908 INFO [stderr]     |
Dec 18 12:29:53.908 INFO [stderr] 172 |         let mut timer = TimerBuilder::default().tick_duration(Duration::from_millis(10)).build();
Dec 18 12:29:53.908 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^
Dec 18 12:29:53.908 INFO [stderr] 
Dec 18 12:29:53.908 INFO [stderr] warning: use of deprecated item 'mio::timer::Timer': use mio-extras instead
Dec 18 12:29:53.908 INFO [stderr]    --> src/cache.rs:287:31
Dec 18 12:29:53.908 INFO [stderr]     |
Dec 18 12:29:53.908 INFO [stderr] 287 |            timer: PollEvented<Timer<()>>)
Dec 18 12:29:53.908 INFO [stderr]     |                               ^^^^^^^^^
Dec 18 12:29:53.908 INFO [stderr] 
Dec 18 12:29:53.981 INFO [stderr] warning: use of deprecated item '<futures::Sender<T>>::complete': renamed to `send`
Dec 18 12:29:53.981 INFO [stderr]    --> src/cache.rs:125:30
Dec 18 12:29:53.981 INFO [stderr]     |
Dec 18 12:29:53.981 INFO [stderr] 125 |                     resolver.complete(Ok(Arc::new(res)));
Dec 18 12:29:53.981 INFO [stderr]     |                              ^^^^^^^^
Dec 18 12:29:53.981 INFO [stderr] 
Dec 18 12:29:53.981 INFO [stderr] warning: use of deprecated item 'mio::timer::Builder': use mio-extras instead
Dec 18 12:29:53.981 INFO [stderr]   --> src/cache.rs:13:18
Dec 18 12:29:53.981 INFO [stderr]    |
Dec 18 12:29:53.981 INFO [stderr] 13 | use mio::timer::{Builder as TimerBuilder, Timer};
Dec 18 12:29:53.981 INFO [stderr]    |                  ^^^^^^^
Dec 18 12:29:53.981 INFO [stderr]    |
Dec 18 12:29:53.981 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 18 12:29:53.981 INFO [stderr] 
Dec 18 12:29:53.981 INFO [stderr] warning: use of deprecated item 'mio::timer::Timer': use mio-extras instead
Dec 18 12:29:53.981 INFO [stderr]   --> src/cache.rs:13:43
Dec 18 12:29:53.981 INFO [stderr]    |
Dec 18 12:29:53.981 INFO [stderr] 13 | use mio::timer::{Builder as TimerBuilder, Timer};
Dec 18 12:29:53.981 INFO [stderr]    |                                           ^^^^^
Dec 18 12:29:53.981 INFO [stderr] 
Dec 18 12:29:53.981 INFO [stderr] warning: use of deprecated item 'mio::timer::Timer': use mio-extras instead
Dec 18 12:29:53.981 INFO [stderr]   --> src/cache.rs:70:24
Dec 18 12:29:53.981 INFO [stderr]    |
Dec 18 12:29:53.981 INFO [stderr] 70 |     timer: PollEvented<Timer<()>>,
Dec 18 12:29:53.981 INFO [stderr]    |                        ^^^^^^^^^
Dec 18 12:29:53.981 INFO [stderr] 
Dec 18 12:29:53.984 INFO [stderr] warning: use of deprecated item '<futures::Sender<T>>::complete': renamed to `send`
Dec 18 12:29:53.984 INFO [stderr]    --> src/cache.rs:130:30
Dec 18 12:29:53.984 INFO [stderr]     |
Dec 18 12:29:53.984 INFO [stderr] 130 |                     resolver.complete(Err(e));
Dec 18 12:29:53.984 INFO [stderr]     |                              ^^^^^^^^
Dec 18 12:29:53.984 INFO [stderr] 
Dec 18 12:29:53.984 INFO [stderr] warning: use of deprecated item 'mio::timer::Builder': use mio-extras instead
Dec 18 12:29:53.984 INFO [stderr]    --> src/cache.rs:172:25
Dec 18 12:29:53.984 INFO [stderr]     |
Dec 18 12:29:53.984 INFO [stderr] 172 |         let mut timer = TimerBuilder::default().tick_duration(Duration::from_millis(10)).build();
Dec 18 12:29:53.984 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^
Dec 18 12:29:53.984 INFO [stderr] 
Dec 18 12:29:53.984 INFO [stderr] warning: use of deprecated item 'mio::timer::Timer': use mio-extras instead
Dec 18 12:29:53.984 INFO [stderr]    --> src/cache.rs:287:31
Dec 18 12:29:53.985 INFO [stderr]     |
Dec 18 12:29:53.985 INFO [stderr] 287 |            timer: PollEvented<Timer<()>>)
Dec 18 12:29:53.985 INFO [stderr]     |                               ^^^^^^^^^
Dec 18 12:29:53.985 INFO [stderr] 
Dec 18 12:29:53.992 INFO [stderr] warning: use of deprecated item 'mio::timer::Builder::tick_duration': use mio-extras instead
Dec 18 12:29:53.992 INFO [stderr]    --> src/cache.rs:172:49
Dec 18 12:29:53.992 INFO [stderr]     |
Dec 18 12:29:53.992 INFO [stderr] 172 |         let mut timer = TimerBuilder::default().tick_duration(Duration::from_millis(10)).build();
Dec 18 12:29:53.992 INFO [stderr]     |                                                 ^^^^^^^^^^^^^
Dec 18 12:29:53.992 INFO [stderr] 
Dec 18 12:29:53.992 INFO [stderr] warning: use of deprecated item 'mio::timer::Builder::build': use mio-extras instead
Dec 18 12:29:53.992 INFO [stderr]    --> src/cache.rs:172:90
Dec 18 12:29:53.992 INFO [stderr]     |
Dec 18 12:29:53.992 INFO [stderr] 172 |         let mut timer = TimerBuilder::default().tick_duration(Duration::from_millis(10)).build();
Dec 18 12:29:53.992 INFO [stderr]     |                                                                                          ^^^^^
Dec 18 12:29:53.992 INFO [stderr] 
Dec 18 12:29:53.992 INFO [stderr] warning: use of deprecated item '<mio::timer::Timer<T>>::set_timeout': use mio-extras instead
Dec 18 12:29:53.992 INFO [stderr]    --> src/cache.rs:173:15
Dec 18 12:29:53.992 INFO [stderr]     |
Dec 18 12:29:53.992 INFO [stderr] 173 |         timer.set_timeout(Duration::from_millis(10), ()).unwrap();
Dec 18 12:29:53.992 INFO [stderr]     |               ^^^^^^^^^^^
Dec 18 12:29:53.992 INFO [stderr] 
Dec 18 12:29:54.016 INFO [stderr] warning: use of deprecated item '<futures::Sender<T>>::complete': renamed to `send`
Dec 18 12:29:54.016 INFO [stderr]    --> src/cache.rs:319:28
Dec 18 12:29:54.016 INFO [stderr]     |
Dec 18 12:29:54.016 INFO [stderr] 319 |                     waiter.complete(r.clone().map(Some));
Dec 18 12:29:54.016 INFO [stderr]     |                            ^^^^^^^^
Dec 18 12:29:54.016 INFO [stderr] 
Dec 18 12:29:54.028 INFO [stderr] warning: use of deprecated item '<futures::Sender<T>>::complete': renamed to `send`
Dec 18 12:29:54.028 INFO [stderr]    --> src/cache.rs:375:12
Dec 18 12:29:54.028 INFO [stderr]     |
Dec 18 12:29:54.028 INFO [stderr] 375 |         tx.complete(CacheStats {
Dec 18 12:29:54.028 INFO [stderr]     |            ^^^^^^^^
Dec 18 12:29:54.028 INFO [stderr] 
Dec 18 12:29:54.028 INFO [stderr] warning: use of deprecated item '<futures::Sender<T>>::complete': renamed to `send`
Dec 18 12:29:54.028 INFO [stderr]    --> src/cache.rs:388:23
Dec 18 12:29:54.028 INFO [stderr]     |
Dec 18 12:29:54.028 INFO [stderr] 388 |             return tx.complete(Ok(Some(entry.inner.clone())));
Dec 18 12:29:54.028 INFO [stderr]     |                       ^^^^^^^^
Dec 18 12:29:54.028 INFO [stderr] 
Dec 18 12:29:54.028 INFO [stderr] warning: use of deprecated item '<futures::Sender<T>>::complete': renamed to `send`
Dec 18 12:29:54.028 INFO [stderr]    --> src/cache.rs:399:12
Dec 18 12:29:54.032 INFO [stderr]     |
Dec 18 12:29:54.033 INFO [stderr] 399 |         tx.complete(Ok(None));
Dec 18 12:29:54.033 INFO [stderr]     |            ^^^^^^^^
Dec 18 12:29:54.033 INFO [stderr] 
Dec 18 12:29:54.033 INFO [stderr] warning: use of deprecated item '<futures::Sender<T>>::complete': renamed to `send`
Dec 18 12:29:54.033 INFO [stderr]    --> src/cache.rs:408:28
Dec 18 12:29:54.033 INFO [stderr]     |
Dec 18 12:29:54.033 INFO [stderr] 408 |             return checker.complete(Ok(entry.inner.clone()));
Dec 18 12:29:54.033 INFO [stderr]     |                            ^^^^^^^^
Dec 18 12:29:54.033 INFO [stderr] 
Dec 18 12:29:54.036 INFO [stderr] warning: use of deprecated item '<futures::Sender<T>>::complete': renamed to `send`
Dec 18 12:29:54.036 INFO [stderr]    --> src/cache.rs:413:17
Dec 18 12:29:54.036 INFO [stderr]     |
Dec 18 12:29:54.036 INFO [stderr] 413 |         checker.complete(Err(waiters.is_empty())); // if there are no waiters, we're the leader
Dec 18 12:29:54.036 INFO [stderr]     |                 ^^^^^^^^
Dec 18 12:29:54.036 INFO [stderr] 
Dec 18 12:29:54.041 INFO [stderr] warning: use of deprecated item '<futures::Sender<T>>::complete': renamed to `send`
Dec 18 12:29:54.041 INFO [stderr]    --> src/cache.rs:425:12
Dec 18 12:29:54.041 INFO [stderr]     |
Dec 18 12:29:54.041 INFO [stderr] 425 |         tx.complete(());
Dec 18 12:29:54.041 INFO [stderr]     |            ^^^^^^^^
Dec 18 12:29:54.041 INFO [stderr] 
Dec 18 12:29:54.041 INFO [stderr] warning: use of deprecated item '<mio::timer::Timer<T>>::poll': use mio-extras instead
Dec 18 12:29:54.041 INFO [stderr]    --> src/cache.rs:442:50
Dec 18 12:29:54.041 INFO [stderr]     |
Dec 18 12:29:54.042 INFO [stderr] 442 |         while let Some(_) = self.timer.get_mut().poll() {}
Dec 18 12:29:54.042 INFO [stderr]     |                                                  ^^^^
Dec 18 12:29:54.042 INFO [stderr] 
Dec 18 12:29:54.042 INFO [stderr] warning: use of deprecated item '<mio::timer::Timer<T>>::set_timeout': use mio-extras instead
Dec 18 12:29:54.042 INFO [stderr]    --> src/cache.rs:452:42
Dec 18 12:29:54.042 INFO [stderr]     |
Dec 18 12:29:54.042 INFO [stderr] 452 |                     self.timer.get_mut().set_timeout(Duration::from_millis(10), ()).unwrap();
Dec 18 12:29:54.042 INFO [stderr]     |                                          ^^^^^^^^^^^
Dec 18 12:29:54.048 INFO [stderr] 
Dec 18 12:29:54.068 INFO [stderr] warning: use of deprecated item '<futures::Sender<T>>::complete': renamed to `send`
Dec 18 12:29:54.068 INFO [stderr]    --> src/cache.rs:125:30
Dec 18 12:29:54.068 INFO [stderr]     |
Dec 18 12:29:54.068 INFO [stderr] 125 |                     resolver.complete(Ok(Arc::new(res)));
Dec 18 12:29:54.068 INFO [stderr]     |                              ^^^^^^^^
Dec 18 12:29:54.068 INFO [stderr] 
Dec 18 12:29:54.068 INFO [stderr] warning: use of deprecated item '<futures::Sender<T>>::complete': renamed to `send`
Dec 18 12:29:54.068 INFO [stderr]    --> src/cache.rs:130:30
Dec 18 12:29:54.068 INFO [stderr]     |
Dec 18 12:29:54.068 INFO [stderr] 130 |                     resolver.complete(Err(e));
Dec 18 12:29:54.068 INFO [stderr]     |                              ^^^^^^^^
Dec 18 12:29:54.068 INFO [stderr] 
Dec 18 12:29:54.088 INFO [stderr] warning: use of deprecated item 'mio::timer::Builder::tick_duration': use mio-extras instead
Dec 18 12:29:54.088 INFO [stderr]    --> src/cache.rs:172:49
Dec 18 12:29:54.088 INFO [stderr]     |
Dec 18 12:29:54.088 INFO [stderr] 172 |         let mut timer = TimerBuilder::default().tick_duration(Duration::from_millis(10)).build();
Dec 18 12:29:54.088 INFO [stderr]     |                                                 ^^^^^^^^^^^^^
Dec 18 12:29:54.088 INFO [stderr] 
Dec 18 12:29:54.088 INFO [stderr] warning: use of deprecated item 'mio::timer::Builder::build': use mio-extras instead
Dec 18 12:29:54.088 INFO [stderr]    --> src/cache.rs:172:90
Dec 18 12:29:54.088 INFO [stderr]     |
Dec 18 12:29:54.088 INFO [stderr] 172 |         let mut timer = TimerBuilder::default().tick_duration(Duration::from_millis(10)).build();
Dec 18 12:29:54.088 INFO [stderr]     |                                                                                          ^^^^^
Dec 18 12:29:54.088 INFO [stderr] 
Dec 18 12:29:54.088 INFO [stderr] warning: use of deprecated item '<mio::timer::Timer<T>>::set_timeout': use mio-extras instead
Dec 18 12:29:54.088 INFO [stderr]    --> src/cache.rs:173:15
Dec 18 12:29:54.088 INFO [stderr]     |
Dec 18 12:29:54.088 INFO [stderr] 173 |         timer.set_timeout(Duration::from_millis(10), ()).unwrap();
Dec 18 12:29:54.088 INFO [stderr]     |               ^^^^^^^^^^^
Dec 18 12:29:54.088 INFO [stderr] 
Dec 18 12:29:54.116 INFO [stderr] warning: use of deprecated item '<futures::Sender<T>>::complete': renamed to `send`
Dec 18 12:29:54.116 INFO [stderr]    --> src/cache.rs:319:28
Dec 18 12:29:54.116 INFO [stderr]     |
Dec 18 12:29:54.116 INFO [stderr] 319 |                     waiter.complete(r.clone().map(Some));
Dec 18 12:29:54.116 INFO [stderr]     |                            ^^^^^^^^
Dec 18 12:29:54.116 INFO [stderr] 
Dec 18 12:29:54.136 INFO [stderr] warning: use of deprecated item '<futures::Sender<T>>::complete': renamed to `send`
Dec 18 12:29:54.136 INFO [stderr]    --> src/cache.rs:375:12
Dec 18 12:29:54.136 INFO [stderr]     |
Dec 18 12:29:54.136 INFO [stderr] 375 |         tx.complete(CacheStats {
Dec 18 12:29:54.136 INFO [stderr]     |            ^^^^^^^^
Dec 18 12:29:54.136 INFO [stderr] 
Dec 18 12:29:54.136 INFO [stderr] warning: use of deprecated item '<futures::Sender<T>>::complete': renamed to `send`
Dec 18 12:29:54.136 INFO [stderr]    --> src/cache.rs:388:23
Dec 18 12:29:54.136 INFO [stderr]     |
Dec 18 12:29:54.136 INFO [stderr] 388 |             return tx.complete(Ok(Some(entry.inner.clone())));
Dec 18 12:29:54.136 INFO [stderr]     |                       ^^^^^^^^
Dec 18 12:29:54.136 INFO [stderr] 
Dec 18 12:29:54.136 INFO [stderr] warning: use of deprecated item '<futures::Sender<T>>::complete': renamed to `send`
Dec 18 12:29:54.136 INFO [stderr]    --> src/cache.rs:399:12
Dec 18 12:29:54.136 INFO [stderr]     |
Dec 18 12:29:54.136 INFO [stderr] 399 |         tx.complete(Ok(None));
Dec 18 12:29:54.136 INFO [stderr]     |            ^^^^^^^^
Dec 18 12:29:54.136 INFO [stderr] 
Dec 18 12:29:54.136 INFO [stderr] warning: use of deprecated item '<futures::Sender<T>>::complete': renamed to `send`
Dec 18 12:29:54.136 INFO [stderr]    --> src/cache.rs:408:28
Dec 18 12:29:54.136 INFO [stderr]     |
Dec 18 12:29:54.136 INFO [stderr] 408 |             return checker.complete(Ok(entry.inner.clone()));
Dec 18 12:29:54.136 INFO [stderr]     |                            ^^^^^^^^
Dec 18 12:29:54.136 INFO [stderr] 
Dec 18 12:29:54.146 INFO [stderr] warning: use of deprecated item '<futures::Sender<T>>::complete': renamed to `send`
Dec 18 12:29:54.146 INFO [stderr]    --> src/cache.rs:413:17
Dec 18 12:29:54.146 INFO [stderr]     |
Dec 18 12:29:54.146 INFO [stderr] 413 |         checker.complete(Err(waiters.is_empty())); // if there are no waiters, we're the leader
Dec 18 12:29:54.146 INFO [stderr]     |                 ^^^^^^^^
Dec 18 12:29:54.146 INFO [stderr] 
Dec 18 12:29:54.146 INFO [stderr] warning: use of deprecated item '<futures::Sender<T>>::complete': renamed to `send`
Dec 18 12:29:54.146 INFO [stderr]    --> src/cache.rs:425:12
Dec 18 12:29:54.146 INFO [stderr]     |
Dec 18 12:29:54.146 INFO [stderr] 425 |         tx.complete(());
Dec 18 12:29:54.146 INFO [stderr]     |            ^^^^^^^^
Dec 18 12:29:54.146 INFO [stderr] 
Dec 18 12:29:54.146 INFO [stderr] warning: use of deprecated item '<mio::timer::Timer<T>>::poll': use mio-extras instead
Dec 18 12:29:54.146 INFO [stderr]    --> src/cache.rs:442:50
Dec 18 12:29:54.146 INFO [stderr]     |
Dec 18 12:29:54.146 INFO [stderr] 442 |         while let Some(_) = self.timer.get_mut().poll() {}
Dec 18 12:29:54.146 INFO [stderr]     |                                                  ^^^^
Dec 18 12:29:54.146 INFO [stderr] 
Dec 18 12:29:54.152 INFO [stderr] warning: use of deprecated item '<mio::timer::Timer<T>>::set_timeout': use mio-extras instead
Dec 18 12:29:54.152 INFO [stderr]    --> src/cache.rs:452:42
Dec 18 12:29:54.152 INFO [stderr]     |
Dec 18 12:29:54.152 INFO [stderr] 452 |                     self.timer.get_mut().set_timeout(Duration::from_millis(10), ()).unwrap();
Dec 18 12:29:54.152 INFO [stderr]     |                                          ^^^^^^^^^^^
Dec 18 12:29:54.152 INFO [stderr] 
Dec 18 12:29:54.204 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:29:54.204 INFO [stderr]    --> src/cache.rs:385:21
Dec 18 12:29:54.204 INFO [stderr]     |
Dec 18 12:29:54.204 INFO [stderr] 385 |         if let Some(mut entry) = self.cache_map.get_refresh(&k) {
Dec 18 12:29:54.204 INFO [stderr]     |                     ----^^^^^
Dec 18 12:29:54.204 INFO [stderr]     |                     |
Dec 18 12:29:54.204 INFO [stderr]     |                     help: remove this `mut`
Dec 18 12:29:54.204 INFO [stderr]     |
Dec 18 12:29:54.204 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 12:29:54.204 INFO [stderr] 
Dec 18 12:29:54.204 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:29:54.204 INFO [stderr]    --> src/cache.rs:405:21
Dec 18 12:29:54.204 INFO [stderr]     |
Dec 18 12:29:54.204 INFO [stderr] 405 |         if let Some(mut entry) = self.cache_map.get_refresh(&k) {
Dec 18 12:29:54.204 INFO [stderr]     |                     ----^^^^^
Dec 18 12:29:54.204 INFO [stderr]     |                     |
Dec 18 12:29:54.204 INFO [stderr]     |                     help: remove this `mut`
Dec 18 12:29:54.204 INFO [stderr] 
Dec 18 12:29:54.236 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:29:54.236 INFO [stderr]    --> src/cache.rs:385:21
Dec 18 12:29:54.236 INFO [stderr]     |
Dec 18 12:29:54.236 INFO [stderr] 385 |         if let Some(mut entry) = self.cache_map.get_refresh(&k) {
Dec 18 12:29:54.236 INFO [stderr]     |                     ----^^^^^
Dec 18 12:29:54.236 INFO [stderr]     |                     |
Dec 18 12:29:54.236 INFO [stderr]     |                     help: remove this `mut`
Dec 18 12:29:54.236 INFO [stderr]     |
Dec 18 12:29:54.236 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 12:29:54.236 INFO [stderr] 
Dec 18 12:29:54.240 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:29:54.240 INFO [stderr]    --> src/cache.rs:405:21
Dec 18 12:29:54.240 INFO [stderr]     |
Dec 18 12:29:54.240 INFO [stderr] 405 |         if let Some(mut entry) = self.cache_map.get_refresh(&k) {
Dec 18 12:29:54.240 INFO [stderr]     |                     ----^^^^^
Dec 18 12:29:54.240 INFO [stderr]     |                     |
Dec 18 12:29:54.240 INFO [stderr]     |                     help: remove this `mut`
Dec 18 12:29:54.240 INFO [stderr] 
Dec 18 12:29:54.306 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.79s
Dec 18 12:29:54.920 INFO running `"docker" "inspect" "d539180d019ab8bcc676080205e7ddbedb992376e2e3434b7bbc97ab0d57b6fa"`
Dec 18 12:29:55.148 INFO running `"docker" "rm" "-f" "d539180d019ab8bcc676080205e7ddbedb992376e2e3434b7bbc97ab0d57b6fa"`
Dec 18 12:29:55.369 INFO [stdout] d539180d019ab8bcc676080205e7ddbedb992376e2e3434b7bbc97ab0d57b6fa