[INFO] cloning repository https://github.com/SonicFrog/furry-bassoon
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SonicFrog/furry-bassoon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSonicFrog%2Ffurry-bassoon"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSonicFrog%2Ffurry-bassoon'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 03bc7cd0bce6dd1aeb5033b42ff0bbde83d54fa5
[INFO] checking SonicFrog/furry-bassoon against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSonicFrog%2Ffurry-bassoon" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SonicFrog/furry-bassoon on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/SonicFrog/furry-bassoon
[INFO] finished tweaking git repo https://github.com/SonicFrog/furry-bassoon
[INFO] tweaked toml for git repo https://github.com/SonicFrog/furry-bassoon written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/SonicFrog/furry-bassoon already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 416f77eb1159061c1218f0e575043527adc6d158ab73fd43d6e235518be521c3
[INFO] running `"docker" "start" "-a" "416f77eb1159061c1218f0e575043527adc6d158ab73fd43d6e235518be521c3"`
[INFO] [stderr]     Checking rand_core v0.1.0-pre.0
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]     Checking rand v0.5.0-pre.0
[INFO] [stderr]     Checking memcached v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `AtomicI64`, `Ordering`
[INFO] [stderr]    --> src/loan_map.rs:358:29
[INFO] [stderr]     |
[INFO] [stderr] 358 |     use std::sync::atomic::{AtomicI64, Ordering};
[INFO] [stderr]     |                             ^^^^^^^^^  ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `keys`
[INFO] [stderr]    --> src/loan_map.rs:617:13
[INFO] [stderr]     |
[INFO] [stderr] 617 |         let keys = gen_rand_strings(size * 2, size);
[INFO] [stderr]     |             ^^^^ help: consider prefixing with an underscore: `_keys`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `values`
[INFO] [stderr]    --> src/loan_map.rs:618:13
[INFO] [stderr]     |
[INFO] [stderr] 618 |         let values = gen_rand_strings(size * 2, size);
[INFO] [stderr]     |             ^^^^^^ help: consider prefixing with an underscore: `_values`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/loan_map.rs:641:19
[INFO] [stderr]     |
[INFO] [stderr] 641 |         for (key, value) in kv1 {
[INFO] [stderr]     |                   ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/loan_map.rs:492:33
[INFO] [stderr]     |
[INFO] [stderr] 492 | ...                   let mut elapsed;
[INFO] [stderr]     |                           ----^^^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/loan_map.rs:474:37
[INFO] [stderr]     |
[INFO] [stderr] 474 | ...                   let mut start;
[INFO] [stderr]     |                           ----^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `hasher`
[INFO] [stderr]   --> src/map.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     hasher: DefaultHasher,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `remove`
[INFO] [stderr]   --> src/map.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     pub fn remove(&self, key: &K) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `DEFAULT_TABLE_CAPACITY`
[INFO] [stderr]   --> src/loan_map.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | const DEFAULT_TABLE_CAPACITY: usize = 128;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `DEFAULT_BUCKET_CAPACITY`
[INFO] [stderr]   --> src/loan_map.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const DEFAULT_BUCKET_CAPACITY: usize = 128;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `head`
[INFO] [stderr]   --> src/loan_map.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     head: AtomicUsize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_capacity`
[INFO] [stderr]   --> src/loan_map.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn with_capacity(cap: usize) -> VersionTable<K, V> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `current_head`
[INFO] [stderr]   --> src/loan_map.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn current_head(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `next_head`
[INFO] [stderr]   --> src/loan_map.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn next_head(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `scan`
[INFO] [stderr]   --> src/loan_map.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 | /     fn scan<F>(&self, f: F) -> RwLockReadGuard<Bucket<K, V>>
[INFO] [stderr] 42 | |     where
[INFO] [stderr] 43 | |         F: Fn(&Bucket<K, V>) -> bool,
[INFO] [stderr] 44 | |     {
[INFO] [stderr] ...  |
[INFO] [stderr] 56 | |         self.bucket[start].read().unwrap()
[INFO] [stderr] 57 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `remove`
[INFO] [stderr]   --> src/loan_map.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn remove(&self, key: K) -> Option<V> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `scan_mut`
[INFO] [stderr]   --> src/loan_map.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 | /     fn scan_mut<F>(&self, f: F) -> RwLockWriteGuard<Bucket<K, V>>
[INFO] [stderr] 68 | |     where
[INFO] [stderr] 69 | |         F: Fn(&Bucket<K, V>) -> bool,
[INFO] [stderr] 70 | |     {
[INFO] [stderr] ...  |
[INFO] [stderr] 82 | |         self.bucket[start].write().unwrap()
[INFO] [stderr] 83 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update`
[INFO] [stderr]   --> src/loan_map.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn update(&self, key: K, value: V) -> Option<V> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `newest`
[INFO] [stderr]   --> src/loan_map.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 |     fn newest(&self, key: &K) -> Option<RwLockReadGuard<Bucket<K, V>>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Empty`
[INFO] [stderr]    --> src/loan_map.rs:114:5
[INFO] [stderr]     |
[INFO] [stderr] 114 |     Empty,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Removed`
[INFO] [stderr]    --> src/loan_map.rs:115:5
[INFO] [stderr]     |
[INFO] [stderr] 115 |     Removed(K),
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Contains`
[INFO] [stderr]    --> src/loan_map.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 116 |     Contains(K, V),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_free`
[INFO] [stderr]    --> src/loan_map.rs:120:5
[INFO] [stderr]     |
[INFO] [stderr] 120 |     fn is_free(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `value`
[INFO] [stderr]    --> src/loan_map.rs:127:5
[INFO] [stderr]     |
[INFO] [stderr] 127 |     fn value(self) -> Option<V> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `key`
[INFO] [stderr]    --> src/loan_map.rs:135:5
[INFO] [stderr]     |
[INFO] [stderr] 135 |     fn key(&self) -> Option<&K> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `value_ref`
[INFO] [stderr]    --> src/loan_map.rs:143:5
[INFO] [stderr]     |
[INFO] [stderr] 143 |     fn value_ref(&self) -> Result<&V, ()> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `key_matches`
[INFO] [stderr]    --> src/loan_map.rs:151:5
[INFO] [stderr]     |
[INFO] [stderr] 151 | /     fn key_matches(&self, key: &K) -> bool
[INFO] [stderr] 152 | |     where
[INFO] [stderr] 153 | |         K: PartialEq,
[INFO] [stderr] 154 | |     {
[INFO] [stderr] ...   |
[INFO] [stderr] 159 | |         }
[INFO] [stderr] 160 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `hash_builder`
[INFO] [stderr]    --> src/loan_map.rs:167:5
[INFO] [stderr]     |
[INFO] [stderr] 167 |     hash_builder: RandomState,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `buckets`
[INFO] [stderr]    --> src/loan_map.rs:168:5
[INFO] [stderr]     |
[INFO] [stderr] 168 |     buckets: Vec<VersionTable<K, V>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_capacity`
[INFO] [stderr]    --> src/loan_map.rs:175:5
[INFO] [stderr]     |
[INFO] [stderr] 175 |     fn with_capacity(cap: usize, bucket_size: usize) -> Table<K, V> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `hash`
[INFO] [stderr]    --> src/loan_map.rs:185:5
[INFO] [stderr]     |
[INFO] [stderr] 185 |     fn hash(&self, key: &K) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `scan`
[INFO] [stderr]    --> src/loan_map.rs:192:5
[INFO] [stderr]     |
[INFO] [stderr] 192 | /     fn scan<F>(&self, key: &K, matches: F) -> RwLockReadGuard<Bucket<K, V>>
[INFO] [stderr] 193 | |         where F: Fn(&Bucket<K, V>) -> bool,
[INFO] [stderr] 194 | |     {
[INFO] [stderr] 195 | |         self.buckets[self.hash(key)].scan(matches)
[INFO] [stderr] 196 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `scan_mut`
[INFO] [stderr]    --> src/loan_map.rs:198:5
[INFO] [stderr]     |
[INFO] [stderr] 198 | /     fn scan_mut<F>(&self, key: &K, matches: F) -> RwLockWriteGuard<Bucket<K, V>>
[INFO] [stderr] 199 | |         where F: Fn(&Bucket<K, V>) -> bool,
[INFO] [stderr] 200 | |     {
[INFO] [stderr] 201 | |         self.buckets[self.hash(key)].scan_mut(matches)
[INFO] [stderr] 202 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `lookup`
[INFO] [stderr]    --> src/loan_map.rs:204:5
[INFO] [stderr]     |
[INFO] [stderr] 204 |     fn lookup(&self, key: &K) -> RwLockReadGuard<Bucket<K, V>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `lookup_or_free`
[INFO] [stderr]    --> src/loan_map.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 |     fn lookup_or_free(&self, key: &K) -> RwLockWriteGuard<Bucket<K, V>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `remove`
[INFO] [stderr]    --> src/loan_map.rs:222:5
[INFO] [stderr]     |
[INFO] [stderr] 222 |     fn remove(&self, key: K) -> Option<V> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `lookup_or_free_mut`
[INFO] [stderr]    --> src/loan_map.rs:226:5
[INFO] [stderr]     |
[INFO] [stderr] 226 |     fn lookup_or_free_mut(&self, key: &K) -> RwLockWriteGuard<Bucket<K, V>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `lookup_mut`
[INFO] [stderr]    --> src/loan_map.rs:233:5
[INFO] [stderr]     |
[INFO] [stderr] 233 |     fn lookup_mut(&self, key: &K) -> RwLockWriteGuard<Bucket<K, V>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `LoanMap`
[INFO] [stderr]    --> src/loan_map.rs:283:1
[INFO] [stderr]     |
[INFO] [stderr] 283 | / pub struct LoanMap<K, V>
[INFO] [stderr] 284 | | where
[INFO] [stderr] 285 | |     K: PartialEq + Hash,
[INFO] [stderr] 286 | | {
[INFO] [stderr] 287 | |     table: RwLock<Table<K, V>>,
[INFO] [stderr] 288 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/loan_map.rs:295:5
[INFO] [stderr]     |
[INFO] [stderr] 295 |     pub fn new() -> LoanMap<K, V> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_capacity`
[INFO] [stderr]    --> src/loan_map.rs:301:5
[INFO] [stderr]     |
[INFO] [stderr] 301 |     pub fn with_capacity(cap: usize, bucket_size: usize) -> LoanMap<K, V> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get`
[INFO] [stderr]    --> src/loan_map.rs:307:5
[INFO] [stderr]     |
[INFO] [stderr] 307 |     pub fn get(&self, key: &K) -> Option<ReadGuard<K, V>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `upsert`
[INFO] [stderr]    --> src/loan_map.rs:319:5
[INFO] [stderr]     |
[INFO] [stderr] 319 | /     pub fn upsert<F>(&self, key: K, f: F) -> Option<V>
[INFO] [stderr] 320 | |     where
[INFO] [stderr] 321 | |         F: FnOnce(&V) -> V,
[INFO] [stderr] 322 | |     {
[INFO] [stderr] ...   |
[INFO] [stderr] 330 | |         mem::replace(&mut *bucket, Bucket::Contains(key, new_val)).value()
[INFO] [stderr] 331 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `put`
[INFO] [stderr]    --> src/loan_map.rs:333:5
[INFO] [stderr]     |
[INFO] [stderr] 333 |     pub fn put(&self, key: K, val: V) -> Option<V> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `remove`
[INFO] [stderr]    --> src/loan_map.rs:340:5
[INFO] [stderr]     |
[INFO] [stderr] 340 |     pub fn remove(&self, key: K) -> Option<V> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `hasher`
[INFO] [stderr]   --> src/map.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     hasher: DefaultHasher,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `remove`
[INFO] [stderr]   --> src/loan_map.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn remove(&self, key: K) -> Option<V> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_free`
[INFO] [stderr]    --> src/loan_map.rs:120:5
[INFO] [stderr]     |
[INFO] [stderr] 120 |     fn is_free(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `key`
[INFO] [stderr]    --> src/loan_map.rs:135:5
[INFO] [stderr]     |
[INFO] [stderr] 135 |     fn key(&self) -> Option<&K> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `lookup_or_free`
[INFO] [stderr]    --> src/loan_map.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 |     fn lookup_or_free(&self, key: &K) -> RwLockWriteGuard<Bucket<K, V>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `remove`
[INFO] [stderr]    --> src/loan_map.rs:222:5
[INFO] [stderr]     |
[INFO] [stderr] 222 |     fn remove(&self, key: K) -> Option<V> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `lookup_mut`
[INFO] [stderr]    --> src/loan_map.rs:233:5
[INFO] [stderr]     |
[INFO] [stderr] 233 |     fn lookup_mut(&self, key: &K) -> RwLockWriteGuard<Bucket<K, V>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `upsert`
[INFO] [stderr]    --> src/loan_map.rs:319:5
[INFO] [stderr]     |
[INFO] [stderr] 319 | /     pub fn upsert<F>(&self, key: K, f: F) -> Option<V>
[INFO] [stderr] 320 | |     where
[INFO] [stderr] 321 | |         F: FnOnce(&V) -> V,
[INFO] [stderr] 322 | |     {
[INFO] [stderr] ...   |
[INFO] [stderr] 330 | |         mem::replace(&mut *bucket, Bucket::Contains(key, new_val)).value()
[INFO] [stderr] 331 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.35s
[INFO] running `"docker" "inspect" "416f77eb1159061c1218f0e575043527adc6d158ab73fd43d6e235518be521c3"`
[INFO] running `"docker" "rm" "-f" "416f77eb1159061c1218f0e575043527adc6d158ab73fd43d6e235518be521c3"`
[INFO] [stdout] 416f77eb1159061c1218f0e575043527adc6d158ab73fd43d6e235518be521c3