Dec 05 00:03:26.867 INFO checking SonicFrog/furry-bassoon against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 00:03:26.867 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 00:03:27.022 INFO [stdout] 6de6f246ebaed557b56f102d99fa30f32445d690554c945bddba6ab13435aa7f
Dec 05 00:03:27.024 INFO running `"docker" "start" "-a" "6de6f246ebaed557b56f102d99fa30f32445d690554c945bddba6ab13435aa7f"`
Dec 05 00:03:27.364 INFO [stderr] usermod: no changes
Dec 05 00:03:27.408 INFO [stderr]     Checking memcached v0.1.0 (/source)
Dec 05 00:03:28.020 INFO [stderr] warning: field is never used: `hasher`
Dec 05 00:03:28.020 INFO [stderr]   --> src/map.rs:12:5
Dec 05 00:03:28.020 INFO [stderr]    |
Dec 05 00:03:28.020 INFO [stderr] 12 |     hasher: DefaultHasher,
Dec 05 00:03:28.020 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.020 INFO [stderr]    |
Dec 05 00:03:28.020 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 00:03:28.020 INFO [stderr] 
Dec 05 00:03:28.020 INFO [stderr] warning: method is never used: `remove`
Dec 05 00:03:28.020 INFO [stderr]   --> src/map.rs:79:5
Dec 05 00:03:28.020 INFO [stderr]    |
Dec 05 00:03:28.020 INFO [stderr] 79 |     pub fn remove(&self, key: &K) {
Dec 05 00:03:28.020 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.020 INFO [stderr] 
Dec 05 00:03:28.020 INFO [stderr] warning: constant item is never used: `DEFAULT_TABLE_CAPACITY`
Dec 05 00:03:28.020 INFO [stderr]   --> src/loan_map.rs:14:1
Dec 05 00:03:28.020 INFO [stderr]    |
Dec 05 00:03:28.020 INFO [stderr] 14 | const DEFAULT_TABLE_CAPACITY: usize = 128;
Dec 05 00:03:28.020 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.020 INFO [stderr] 
Dec 05 00:03:28.020 INFO [stderr] warning: constant item is never used: `DEFAULT_BUCKET_CAPACITY`
Dec 05 00:03:28.020 INFO [stderr]   --> src/loan_map.rs:15:1
Dec 05 00:03:28.020 INFO [stderr]    |
Dec 05 00:03:28.020 INFO [stderr] 15 | const DEFAULT_BUCKET_CAPACITY: usize = 128;
Dec 05 00:03:28.020 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.020 INFO [stderr] 
Dec 05 00:03:28.020 INFO [stderr] warning: struct is never constructed: `VersionTable`
Dec 05 00:03:28.020 INFO [stderr]   --> src/loan_map.rs:17:1
Dec 05 00:03:28.020 INFO [stderr]    |
Dec 05 00:03:28.020 INFO [stderr] 17 | struct VersionTable<K, V> {
Dec 05 00:03:28.020 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.020 INFO [stderr] 
Dec 05 00:03:28.020 INFO [stderr] warning: method is never used: `with_capacity`
Dec 05 00:03:28.020 INFO [stderr]   --> src/loan_map.rs:26:5
Dec 05 00:03:28.020 INFO [stderr]    |
Dec 05 00:03:28.020 INFO [stderr] 26 |     fn with_capacity(cap: usize) -> VersionTable<K, V> {
Dec 05 00:03:28.020 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.020 INFO [stderr] 
Dec 05 00:03:28.020 INFO [stderr] warning: method is never used: `current_head`
Dec 05 00:03:28.020 INFO [stderr]   --> src/loan_map.rs:33:5
Dec 05 00:03:28.020 INFO [stderr]    |
Dec 05 00:03:28.020 INFO [stderr] 33 |     fn current_head(&self) -> usize {
Dec 05 00:03:28.020 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.020 INFO [stderr] 
Dec 05 00:03:28.020 INFO [stderr] warning: method is never used: `next_head`
Dec 05 00:03:28.020 INFO [stderr]   --> src/loan_map.rs:37:5
Dec 05 00:03:28.020 INFO [stderr]    |
Dec 05 00:03:28.020 INFO [stderr] 37 |     fn next_head(&self) -> usize {
Dec 05 00:03:28.020 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.020 INFO [stderr] 
Dec 05 00:03:28.020 INFO [stderr] warning: method is never used: `scan`
Dec 05 00:03:28.020 INFO [stderr]   --> src/loan_map.rs:41:5
Dec 05 00:03:28.020 INFO [stderr]    |
Dec 05 00:03:28.020 INFO [stderr] 41 | /     fn scan<F>(&self, f: F) -> RwLockReadGuard<Bucket<K, V>>
Dec 05 00:03:28.020 INFO [stderr] 42 | |     where
Dec 05 00:03:28.020 INFO [stderr] 43 | |         F: Fn(&Bucket<K, V>) -> bool,
Dec 05 00:03:28.020 INFO [stderr] 44 | |     {
Dec 05 00:03:28.020 INFO [stderr] ...  |
Dec 05 00:03:28.020 INFO [stderr] 56 | |         self.bucket[start].read().unwrap()
Dec 05 00:03:28.020 INFO [stderr] 57 | |     }
Dec 05 00:03:28.020 INFO [stderr]    | |_____^
Dec 05 00:03:28.020 INFO [stderr] 
Dec 05 00:03:28.020 INFO [stderr] warning: method is never used: `remove`
Dec 05 00:03:28.020 INFO [stderr]   --> src/loan_map.rs:59:5
Dec 05 00:03:28.020 INFO [stderr]    |
Dec 05 00:03:28.020 INFO [stderr] 59 |     fn remove(&self, key: K) -> Option<V> {
Dec 05 00:03:28.021 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.021 INFO [stderr] 
Dec 05 00:03:28.021 INFO [stderr] warning: method is never used: `scan_mut`
Dec 05 00:03:28.021 INFO [stderr]   --> src/loan_map.rs:67:5
Dec 05 00:03:28.021 INFO [stderr]    |
Dec 05 00:03:28.021 INFO [stderr] 67 | /     fn scan_mut<F>(&self, f: F) -> RwLockWriteGuard<Bucket<K, V>>
Dec 05 00:03:28.021 INFO [stderr] 68 | |     where
Dec 05 00:03:28.021 INFO [stderr] 69 | |         F: Fn(&Bucket<K, V>) -> bool,
Dec 05 00:03:28.021 INFO [stderr] 70 | |     {
Dec 05 00:03:28.021 INFO [stderr] ...  |
Dec 05 00:03:28.021 INFO [stderr] 82 | |         self.bucket[start].write().unwrap()
Dec 05 00:03:28.021 INFO [stderr] 83 | |     }
Dec 05 00:03:28.021 INFO [stderr]    | |_____^
Dec 05 00:03:28.021 INFO [stderr] 
Dec 05 00:03:28.021 INFO [stderr] warning: method is never used: `update`
Dec 05 00:03:28.021 INFO [stderr]   --> src/loan_map.rs:85:5
Dec 05 00:03:28.021 INFO [stderr]    |
Dec 05 00:03:28.021 INFO [stderr] 85 |     fn update(&self, key: K, value: V) -> Option<V> {
Dec 05 00:03:28.021 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.021 INFO [stderr] 
Dec 05 00:03:28.021 INFO [stderr] warning: method is never used: `newest`
Dec 05 00:03:28.021 INFO [stderr]   --> src/loan_map.rs:92:5
Dec 05 00:03:28.021 INFO [stderr]    |
Dec 05 00:03:28.021 INFO [stderr] 92 |     fn newest(&self, key: &K) -> Option<RwLockReadGuard<Bucket<K, V>>> {
Dec 05 00:03:28.021 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.021 INFO [stderr] 
Dec 05 00:03:28.021 INFO [stderr] warning: enum is never used: `Bucket`
Dec 05 00:03:28.021 INFO [stderr]    --> src/loan_map.rs:113:1
Dec 05 00:03:28.021 INFO [stderr]     |
Dec 05 00:03:28.021 INFO [stderr] 113 | enum Bucket<K, V> {
Dec 05 00:03:28.021 INFO [stderr]     | ^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.021 INFO [stderr] 
Dec 05 00:03:28.021 INFO [stderr] warning: method is never used: `is_free`
Dec 05 00:03:28.021 INFO [stderr]    --> src/loan_map.rs:120:5
Dec 05 00:03:28.021 INFO [stderr]     |
Dec 05 00:03:28.021 INFO [stderr] 120 |     fn is_free(&self) -> bool {
Dec 05 00:03:28.021 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.021 INFO [stderr] 
Dec 05 00:03:28.021 INFO [stderr] warning: method is never used: `value`
Dec 05 00:03:28.021 INFO [stderr]    --> src/loan_map.rs:127:5
Dec 05 00:03:28.021 INFO [stderr]     |
Dec 05 00:03:28.021 INFO [stderr] 127 |     fn value(self) -> Option<V> {
Dec 05 00:03:28.021 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.021 INFO [stderr] 
Dec 05 00:03:28.021 INFO [stderr] warning: method is never used: `key`
Dec 05 00:03:28.021 INFO [stderr]    --> src/loan_map.rs:135:5
Dec 05 00:03:28.021 INFO [stderr]     |
Dec 05 00:03:28.021 INFO [stderr] 135 |     fn key(&self) -> Option<&K> {
Dec 05 00:03:28.021 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.021 INFO [stderr] 
Dec 05 00:03:28.021 INFO [stderr] warning: method is never used: `value_ref`
Dec 05 00:03:28.021 INFO [stderr]    --> src/loan_map.rs:143:5
Dec 05 00:03:28.021 INFO [stderr]     |
Dec 05 00:03:28.021 INFO [stderr] 143 |     fn value_ref(&self) -> Result<&V, ()> {
Dec 05 00:03:28.021 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.021 INFO [stderr] 
Dec 05 00:03:28.021 INFO [stderr] warning: method is never used: `key_matches`
Dec 05 00:03:28.021 INFO [stderr]    --> src/loan_map.rs:151:5
Dec 05 00:03:28.021 INFO [stderr]     |
Dec 05 00:03:28.021 INFO [stderr] 151 | /     fn key_matches(&self, key: &K) -> bool
Dec 05 00:03:28.021 INFO [stderr] 152 | |     where
Dec 05 00:03:28.021 INFO [stderr] 153 | |         K: PartialEq,
Dec 05 00:03:28.021 INFO [stderr] 154 | |     {
Dec 05 00:03:28.021 INFO [stderr] ...   |
Dec 05 00:03:28.021 INFO [stderr] 159 | |         }
Dec 05 00:03:28.021 INFO [stderr] 160 | |     }
Dec 05 00:03:28.021 INFO [stderr]     | |_____^
Dec 05 00:03:28.021 INFO [stderr] 
Dec 05 00:03:28.021 INFO [stderr] warning: struct is never constructed: `Table`
Dec 05 00:03:28.021 INFO [stderr]    --> src/loan_map.rs:163:1
Dec 05 00:03:28.021 INFO [stderr]     |
Dec 05 00:03:28.021 INFO [stderr] 163 | / struct Table<K: PartialEq, V>
Dec 05 00:03:28.021 INFO [stderr] 164 | | where
Dec 05 00:03:28.021 INFO [stderr] 165 | |     K: PartialEq + Hash,
Dec 05 00:03:28.021 INFO [stderr] 166 | | {
Dec 05 00:03:28.021 INFO [stderr] 167 | |     hash_builder: RandomState,
Dec 05 00:03:28.021 INFO [stderr] 168 | |     buckets: Vec<VersionTable<K, V>>,
Dec 05 00:03:28.021 INFO [stderr] 169 | | }
Dec 05 00:03:28.021 INFO [stderr]     | |_^
Dec 05 00:03:28.021 INFO [stderr] 
Dec 05 00:03:28.021 INFO [stderr] warning: method is never used: `with_capacity`
Dec 05 00:03:28.021 INFO [stderr]    --> src/loan_map.rs:175:5
Dec 05 00:03:28.021 INFO [stderr]     |
Dec 05 00:03:28.021 INFO [stderr] 175 |     fn with_capacity(cap: usize, bucket_size: usize) -> Table<K, V> {
Dec 05 00:03:28.021 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.021 INFO [stderr] 
Dec 05 00:03:28.021 INFO [stderr] warning: method is never used: `hash`
Dec 05 00:03:28.021 INFO [stderr]    --> src/loan_map.rs:185:5
Dec 05 00:03:28.021 INFO [stderr]     |
Dec 05 00:03:28.021 INFO [stderr] 185 |     fn hash(&self, key: &K) -> usize {
Dec 05 00:03:28.021 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.021 INFO [stderr] 
Dec 05 00:03:28.022 INFO [stderr] warning: method is never used: `scan`
Dec 05 00:03:28.022 INFO [stderr]    --> src/loan_map.rs:192:5
Dec 05 00:03:28.022 INFO [stderr]     |
Dec 05 00:03:28.022 INFO [stderr] 192 | /     fn scan<F>(&self, key: &K, matches: F) -> RwLockReadGuard<Bucket<K, V>>
Dec 05 00:03:28.022 INFO [stderr] 193 | |         where F: Fn(&Bucket<K, V>) -> bool,
Dec 05 00:03:28.022 INFO [stderr] 194 | |     {
Dec 05 00:03:28.022 INFO [stderr] 195 | |         self.buckets[self.hash(key)].scan(matches)
Dec 05 00:03:28.022 INFO [stderr] 196 | |     }
Dec 05 00:03:28.022 INFO [stderr]     | |_____^
Dec 05 00:03:28.022 INFO [stderr] 
Dec 05 00:03:28.022 INFO [stderr] warning: method is never used: `scan_mut`
Dec 05 00:03:28.022 INFO [stderr]    --> src/loan_map.rs:198:5
Dec 05 00:03:28.022 INFO [stderr]     |
Dec 05 00:03:28.022 INFO [stderr] 198 | /     fn scan_mut<F>(&self, key: &K, matches: F) -> RwLockWriteGuard<Bucket<K, V>>
Dec 05 00:03:28.022 INFO [stderr] 199 | |         where F: Fn(&Bucket<K, V>) -> bool,
Dec 05 00:03:28.022 INFO [stderr] 200 | |     {
Dec 05 00:03:28.022 INFO [stderr] 201 | |         self.buckets[self.hash(key)].scan_mut(matches)
Dec 05 00:03:28.022 INFO [stderr] 202 | |     }
Dec 05 00:03:28.022 INFO [stderr]     | |_____^
Dec 05 00:03:28.022 INFO [stderr] 
Dec 05 00:03:28.022 INFO [stderr] warning: method is never used: `lookup`
Dec 05 00:03:28.022 INFO [stderr]    --> src/loan_map.rs:204:5
Dec 05 00:03:28.022 INFO [stderr]     |
Dec 05 00:03:28.022 INFO [stderr] 204 |     fn lookup(&self, key: &K) -> RwLockReadGuard<Bucket<K, V>> {
Dec 05 00:03:28.022 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.022 INFO [stderr] 
Dec 05 00:03:28.022 INFO [stderr] warning: method is never used: `lookup_or_free`
Dec 05 00:03:28.022 INFO [stderr]    --> src/loan_map.rs:212:5
Dec 05 00:03:28.022 INFO [stderr]     |
Dec 05 00:03:28.022 INFO [stderr] 212 |     fn lookup_or_free(&self, key: &K) -> RwLockWriteGuard<Bucket<K, V>> {
Dec 05 00:03:28.022 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.022 INFO [stderr] 
Dec 05 00:03:28.022 INFO [stderr] warning: method is never used: `remove`
Dec 05 00:03:28.022 INFO [stderr]    --> src/loan_map.rs:222:5
Dec 05 00:03:28.022 INFO [stderr]     |
Dec 05 00:03:28.022 INFO [stderr] 222 |     fn remove(&self, key: K) -> Option<V> {
Dec 05 00:03:28.022 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.022 INFO [stderr] 
Dec 05 00:03:28.022 INFO [stderr] warning: method is never used: `lookup_or_free_mut`
Dec 05 00:03:28.022 INFO [stderr]    --> src/loan_map.rs:226:5
Dec 05 00:03:28.022 INFO [stderr]     |
Dec 05 00:03:28.022 INFO [stderr] 226 |     fn lookup_or_free_mut(&self, key: &K) -> RwLockWriteGuard<Bucket<K, V>> {
Dec 05 00:03:28.022 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.022 INFO [stderr] 
Dec 05 00:03:28.022 INFO [stderr] warning: method is never used: `lookup_mut`
Dec 05 00:03:28.022 INFO [stderr]    --> src/loan_map.rs:233:5
Dec 05 00:03:28.022 INFO [stderr]     |
Dec 05 00:03:28.022 INFO [stderr] 233 |     fn lookup_mut(&self, key: &K) -> RwLockWriteGuard<Bucket<K, V>> {
Dec 05 00:03:28.022 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.022 INFO [stderr] 
Dec 05 00:03:28.022 INFO [stderr] warning: struct is never constructed: `ReadGuard`
Dec 05 00:03:28.022 INFO [stderr]    --> src/loan_map.rs:244:1
Dec 05 00:03:28.022 INFO [stderr]     |
Dec 05 00:03:28.022 INFO [stderr] 244 | pub struct ReadGuard<'a, K: 'a + PartialEq + Hash, V: 'a> {
Dec 05 00:03:28.022 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.022 INFO [stderr] 
Dec 05 00:03:28.022 INFO [stderr] warning: struct is never constructed: `LoanMap`
Dec 05 00:03:28.022 INFO [stderr]    --> src/loan_map.rs:283:1
Dec 05 00:03:28.022 INFO [stderr]     |
Dec 05 00:03:28.022 INFO [stderr] 283 | / pub struct LoanMap<K, V>
Dec 05 00:03:28.022 INFO [stderr] 284 | | where
Dec 05 00:03:28.022 INFO [stderr] 285 | |     K: PartialEq + Hash,
Dec 05 00:03:28.022 INFO [stderr] 286 | | {
Dec 05 00:03:28.022 INFO [stderr] 287 | |     table: RwLock<Table<K, V>>,
Dec 05 00:03:28.022 INFO [stderr] 288 | | }
Dec 05 00:03:28.022 INFO [stderr]     | |_^
Dec 05 00:03:28.022 INFO [stderr] 
Dec 05 00:03:28.022 INFO [stderr] warning: method is never used: `new`
Dec 05 00:03:28.022 INFO [stderr]    --> src/loan_map.rs:295:5
Dec 05 00:03:28.022 INFO [stderr]     |
Dec 05 00:03:28.022 INFO [stderr] 295 |     pub fn new() -> LoanMap<K, V> {
Dec 05 00:03:28.022 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.022 INFO [stderr] 
Dec 05 00:03:28.022 INFO [stderr] warning: method is never used: `with_capacity`
Dec 05 00:03:28.022 INFO [stderr]    --> src/loan_map.rs:301:5
Dec 05 00:03:28.022 INFO [stderr]     |
Dec 05 00:03:28.022 INFO [stderr] 301 |     pub fn with_capacity(cap: usize, bucket_size: usize) -> LoanMap<K, V> {
Dec 05 00:03:28.022 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.022 INFO [stderr] 
Dec 05 00:03:28.022 INFO [stderr] warning: method is never used: `get`
Dec 05 00:03:28.022 INFO [stderr]    --> src/loan_map.rs:307:5
Dec 05 00:03:28.022 INFO [stderr]     |
Dec 05 00:03:28.022 INFO [stderr] 307 |     pub fn get(&self, key: &K) -> Option<ReadGuard<K, V>> {
Dec 05 00:03:28.022 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.022 INFO [stderr] 
Dec 05 00:03:28.022 INFO [stderr] warning: method is never used: `upsert`
Dec 05 00:03:28.022 INFO [stderr]    --> src/loan_map.rs:319:5
Dec 05 00:03:28.023 INFO [stderr]     |
Dec 05 00:03:28.023 INFO [stderr] 319 | /     pub fn upsert<F>(&self, key: K, f: F) -> Option<V>
Dec 05 00:03:28.023 INFO [stderr] 320 | |     where
Dec 05 00:03:28.023 INFO [stderr] 321 | |         F: FnOnce(&V) -> V,
Dec 05 00:03:28.023 INFO [stderr] 322 | |     {
Dec 05 00:03:28.023 INFO [stderr] ...   |
Dec 05 00:03:28.023 INFO [stderr] 330 | |         mem::replace(&mut *bucket, Bucket::Contains(key, new_val)).value()
Dec 05 00:03:28.023 INFO [stderr] 331 | |     }
Dec 05 00:03:28.023 INFO [stderr]     | |_____^
Dec 05 00:03:28.023 INFO [stderr] 
Dec 05 00:03:28.023 INFO [stderr] warning: method is never used: `put`
Dec 05 00:03:28.023 INFO [stderr]    --> src/loan_map.rs:333:5
Dec 05 00:03:28.023 INFO [stderr]     |
Dec 05 00:03:28.023 INFO [stderr] 333 |     pub fn put(&self, key: K, val: V) -> Option<V> {
Dec 05 00:03:28.023 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.023 INFO [stderr] 
Dec 05 00:03:28.023 INFO [stderr] warning: method is never used: `remove`
Dec 05 00:03:28.023 INFO [stderr]    --> src/loan_map.rs:340:5
Dec 05 00:03:28.023 INFO [stderr]     |
Dec 05 00:03:28.023 INFO [stderr] 340 |     pub fn remove(&self, key: K) -> Option<V> {
Dec 05 00:03:28.023 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.023 INFO [stderr] 
Dec 05 00:03:28.083 INFO [stderr] warning: unused imports: `AtomicI64`, `Ordering`
Dec 05 00:03:28.083 INFO [stderr]    --> src/loan_map.rs:358:29
Dec 05 00:03:28.083 INFO [stderr]     |
Dec 05 00:03:28.083 INFO [stderr] 358 |     use std::sync::atomic::{AtomicI64, Ordering};
Dec 05 00:03:28.083 INFO [stderr]     |                             ^^^^^^^^^  ^^^^^^^^
Dec 05 00:03:28.083 INFO [stderr]     |
Dec 05 00:03:28.083 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 05 00:03:28.083 INFO [stderr] 
Dec 05 00:03:28.318 INFO [stderr] warning: unused variable: `keys`
Dec 05 00:03:28.318 INFO [stderr]    --> src/loan_map.rs:617:13
Dec 05 00:03:28.318 INFO [stderr]     |
Dec 05 00:03:28.318 INFO [stderr] 617 |         let keys = gen_rand_strings(size * 2, size);
Dec 05 00:03:28.318 INFO [stderr]     |             ^^^^ help: consider using `_keys` instead
Dec 05 00:03:28.318 INFO [stderr]     |
Dec 05 00:03:28.318 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 05 00:03:28.327 INFO [stderr] 
Dec 05 00:03:28.327 INFO [stderr] warning: unused variable: `values`
Dec 05 00:03:28.327 INFO [stderr]    --> src/loan_map.rs:618:13
Dec 05 00:03:28.327 INFO [stderr]     |
Dec 05 00:03:28.327 INFO [stderr] 618 |         let values = gen_rand_strings(size * 2, size);
Dec 05 00:03:28.327 INFO [stderr]     |             ^^^^^^ help: consider using `_values` instead
Dec 05 00:03:28.327 INFO [stderr] 
Dec 05 00:03:28.327 INFO [stderr] warning: unused variable: `value`
Dec 05 00:03:28.327 INFO [stderr]    --> src/loan_map.rs:641:19
Dec 05 00:03:28.327 INFO [stderr]     |
Dec 05 00:03:28.327 INFO [stderr] 641 |         for (key, value) in kv1 {
Dec 05 00:03:28.327 INFO [stderr]     |                   ^^^^^ help: consider using `_value` instead
Dec 05 00:03:28.327 INFO [stderr] 
Dec 05 00:03:28.426 INFO [stderr] warning: field is never used: `hasher`
Dec 05 00:03:28.426 INFO [stderr]   --> src/map.rs:12:5
Dec 05 00:03:28.426 INFO [stderr]    |
Dec 05 00:03:28.426 INFO [stderr] 12 |     hasher: DefaultHasher,
Dec 05 00:03:28.426 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.426 INFO [stderr]    |
Dec 05 00:03:28.431 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 00:03:28.431 INFO [stderr] 
Dec 05 00:03:28.431 INFO [stderr] warning: method is never used: `remove`
Dec 05 00:03:28.431 INFO [stderr]   --> src/loan_map.rs:59:5
Dec 05 00:03:28.431 INFO [stderr]    |
Dec 05 00:03:28.431 INFO [stderr] 59 |     fn remove(&self, key: K) -> Option<V> {
Dec 05 00:03:28.431 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.431 INFO [stderr] 
Dec 05 00:03:28.431 INFO [stderr] warning: method is never used: `is_free`
Dec 05 00:03:28.431 INFO [stderr]    --> src/loan_map.rs:120:5
Dec 05 00:03:28.431 INFO [stderr]     |
Dec 05 00:03:28.431 INFO [stderr] 120 |     fn is_free(&self) -> bool {
Dec 05 00:03:28.431 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.431 INFO [stderr] 
Dec 05 00:03:28.431 INFO [stderr] warning: method is never used: `key`
Dec 05 00:03:28.431 INFO [stderr]    --> src/loan_map.rs:135:5
Dec 05 00:03:28.431 INFO [stderr]     |
Dec 05 00:03:28.431 INFO [stderr] 135 |     fn key(&self) -> Option<&K> {
Dec 05 00:03:28.431 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.431 INFO [stderr] 
Dec 05 00:03:28.431 INFO [stderr] warning: method is never used: `lookup_or_free`
Dec 05 00:03:28.431 INFO [stderr]    --> src/loan_map.rs:212:5
Dec 05 00:03:28.431 INFO [stderr]     |
Dec 05 00:03:28.431 INFO [stderr] 212 |     fn lookup_or_free(&self, key: &K) -> RwLockWriteGuard<Bucket<K, V>> {
Dec 05 00:03:28.431 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.431 INFO [stderr] 
Dec 05 00:03:28.431 INFO [stderr] warning: method is never used: `remove`
Dec 05 00:03:28.431 INFO [stderr]    --> src/loan_map.rs:222:5
Dec 05 00:03:28.431 INFO [stderr]     |
Dec 05 00:03:28.431 INFO [stderr] 222 |     fn remove(&self, key: K) -> Option<V> {
Dec 05 00:03:28.431 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.431 INFO [stderr] 
Dec 05 00:03:28.431 INFO [stderr] warning: method is never used: `lookup_mut`
Dec 05 00:03:28.431 INFO [stderr]    --> src/loan_map.rs:233:5
Dec 05 00:03:28.431 INFO [stderr]     |
Dec 05 00:03:28.431 INFO [stderr] 233 |     fn lookup_mut(&self, key: &K) -> RwLockWriteGuard<Bucket<K, V>> {
Dec 05 00:03:28.431 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:03:28.431 INFO [stderr] 
Dec 05 00:03:28.431 INFO [stderr] warning: method is never used: `upsert`
Dec 05 00:03:28.431 INFO [stderr]    --> src/loan_map.rs:319:5
Dec 05 00:03:28.431 INFO [stderr]     |
Dec 05 00:03:28.431 INFO [stderr] 319 | /     pub fn upsert<F>(&self, key: K, f: F) -> Option<V>
Dec 05 00:03:28.431 INFO [stderr] 320 | |     where
Dec 05 00:03:28.431 INFO [stderr] 321 | |         F: FnOnce(&V) -> V,
Dec 05 00:03:28.431 INFO [stderr] 322 | |     {
Dec 05 00:03:28.431 INFO [stderr] ...   |
Dec 05 00:03:28.431 INFO [stderr] 330 | |         mem::replace(&mut *bucket, Bucket::Contains(key, new_val)).value()
Dec 05 00:03:28.431 INFO [stderr] 331 | |     }
Dec 05 00:03:28.431 INFO [stderr]     | |_____^
Dec 05 00:03:28.431 INFO [stderr] 
Dec 05 00:03:28.474 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
Dec 05 00:03:28.487 INFO [stderr] su: No module specific data is present
Dec 05 00:03:29.479 INFO running `"docker" "inspect" "6de6f246ebaed557b56f102d99fa30f32445d690554c945bddba6ab13435aa7f"`
Dec 05 00:03:29.652 INFO running `"docker" "rm" "-f" "6de6f246ebaed557b56f102d99fa30f32445d690554c945bddba6ab13435aa7f"`
Dec 05 00:03:29.825 INFO [stdout] 6de6f246ebaed557b56f102d99fa30f32445d690554c945bddba6ab13435aa7f