[INFO] updating cached repository https://github.com/SonicFrog/furry-bassoon [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 03bc7cd0bce6dd1aeb5033b42ff0bbde83d54fa5 [INFO] testing SonicFrog/furry-bassoon against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSonicFrog%2Ffurry-bassoon" "/workspace/builds/worker-2/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/SonicFrog/furry-bassoon on toolchain 28742a1146f10a4f09369baad027a464acb7a766 [INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "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-2/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" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 33adf9efc32a794c85e0558d27989da5f19d871720c9718f963becb86bce4434 [INFO] running `"docker" "start" "-a" "33adf9efc32a794c85e0558d27989da5f19d871720c9718f963becb86bce4434"` [INFO] [stderr] Compiling stable_deref_trait v1.0.0 [INFO] [stderr] Compiling rand_core v0.1.0-pre.0 [INFO] [stderr] Compiling crossbeam-utils v0.3.2 [INFO] [stderr] Compiling owning_ref v0.3.3 [INFO] [stderr] Compiling rand v0.5.0-pre.0 [INFO] [stderr] Compiling memcached v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: field is never read: `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 read: `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 { [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(&self, f: F) -> RwLockReadGuard> [INFO] [stderr] 42 | | where [INFO] [stderr] 43 | | F: Fn(&Bucket) -> 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 { [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(&self, f: F) -> RwLockWriteGuard> [INFO] [stderr] 68 | | where [INFO] [stderr] 69 | | F: Fn(&Bucket) -> 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 { [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>> { [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 { [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 read: `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 read: `buckets` [INFO] [stderr] --> src/loan_map.rs:168:5 [INFO] [stderr] | [INFO] [stderr] 168 | buckets: Vec>, [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 { [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(&self, key: &K, matches: F) -> RwLockReadGuard> [INFO] [stderr] 193 | | where F: Fn(&Bucket) -> 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(&self, key: &K, matches: F) -> RwLockWriteGuard> [INFO] [stderr] 199 | | where F: Fn(&Bucket) -> 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> { [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> { [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 { [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> { [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> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `LoanMap` [INFO] [stderr] --> src/loan_map.rs:283:12 [INFO] [stderr] | [INFO] [stderr] 283 | pub struct LoanMap [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 { [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 { [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> { [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(&self, key: K, f: F) -> Option [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 { [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 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 39 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.86s [INFO] running `"docker" "inspect" "33adf9efc32a794c85e0558d27989da5f19d871720c9718f963becb86bce4434"` [INFO] running `"docker" "rm" "-f" "33adf9efc32a794c85e0558d27989da5f19d871720c9718f963becb86bce4434"` [INFO] [stdout] 33adf9efc32a794c85e0558d27989da5f19d871720c9718f963becb86bce4434 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"` [INFO] [stdout] 7f092ec4cf74a115e2cb9298c263f1942ada537b8c93d2698e3016c02c51b39e [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "7f092ec4cf74a115e2cb9298c263f1942ada537b8c93d2698e3016c02c51b39e"` [INFO] [stderr] Compiling 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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 read: `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 { [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> { [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 { [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> { [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(&self, key: K, f: F) -> Option [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: 14 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.01s [INFO] running `"docker" "inspect" "7f092ec4cf74a115e2cb9298c263f1942ada537b8c93d2698e3016c02c51b39e"` [INFO] running `"docker" "rm" "-f" "7f092ec4cf74a115e2cb9298c263f1942ada537b8c93d2698e3016c02c51b39e"` [INFO] [stdout] 7f092ec4cf74a115e2cb9298c263f1942ada537b8c93d2698e3016c02c51b39e [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 2c64a0f5536a3d8b0de4e130b622da0b8d5aee7e9dabfadca968bc040a8a4dd2 [INFO] running `"docker" "start" "-a" "2c64a0f5536a3d8b0de4e130b622da0b8d5aee7e9dabfadca968bc040a8a4dd2"` [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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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 read: `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 { [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> { [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 { [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> { [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(&self, key: K, f: F) -> Option [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: 14 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.14s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/memcached-7557ef66e4724e7c [INFO] [stdout] [INFO] [stdout] running 17 tests [INFO] [stdout] test tests::non_existent_key_is_none ... ok [INFO] [stdout] test tests::remove_test ... ok [INFO] [stdout] test loan_map::tests::version_table_values_dont_interfere ... ok [INFO] [stdout] test tests::existing_key_returns_some_value ... ok [INFO] [stdout] test loan_map::tests::version_table_update_single_key ... ok [INFO] [stdout] test tests::bench_access_32_32 ... ok [INFO] [stdout] test loan_map::tests::version_table_overflow_overwrites_old_values ... ok [INFO] [stdout] test loan_map::tests::insert_then_remove ... ok [INFO] [stdout] test loan_map::tests::get_inexistent_value ... ok [INFO] [stdout] test loan_map::tests::insert_then_get ... ok [INFO] [stdout] test loan_map::tests::delete_value ... ok [INFO] [stdout] test loan_map::tests::double_insert_updates_value ... ok [INFO] [stdout] test loan_map::tests::version_table_multi_version_multi_key ... ok [INFO] [stdout] test loan_map::tests::bench_access_u32_key_u32_value ... ok [INFO] [stdout] test loan_map::tests::concurrent_puts ... FAILED [INFO] [stdout] test loan_map::tests::bench_huge_values ... ok [INFO] [stdout] test loan_map::tests::bench_access_string_key_string_value ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- loan_map::tests::concurrent_puts stdout ---- [INFO] [stdout] thread 'loan_map::tests::concurrent_puts' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/loan_map.rs:455:61 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55dd547a16c4 - backtrace::backtrace::libunwind::trace::hbb4ce8c04526962e [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stdout] 1: 0x55dd547a16c4 - backtrace::backtrace::trace_unsynchronized::h79251c088e7be038 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x55dd547a16c4 - std::sys_common::backtrace::_print_fmt::h6b0ea30a9223acae [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stdout] 3: 0x55dd547a16c4 - ::fmt::h4d51ef07ce58e54b [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stdout] 4: 0x55dd547ca43c - core::fmt::write::he16b9c1345d8565e [INFO] [stdout] at src/libcore/fmt/mod.rs:1069 [INFO] [stdout] 5: 0x55dd54728815 - std::io::Write::write_fmt::hc31efe493f037457 [INFO] [stdout] at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libstd/io/mod.rs:1504 [INFO] [stdout] 6: 0x55dd5479bb41 - std::io::impls::>::write_fmt::hfcb1ff6c5b834381 [INFO] [stdout] at src/libstd/io/impls.rs:156 [INFO] [stdout] 7: 0x55dd547a3fb5 - std::sys_common::backtrace::_print::h9288fa7d9f6629cb [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stdout] 8: 0x55dd547a3fb5 - std::sys_common::backtrace::print::h82e606e62781d8af [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stdout] 9: 0x55dd547a3fb5 - std::panicking::default_hook::{{closure}}::h1fe350ecbf7604e4 [INFO] [stdout] at src/libstd/panicking.rs:198 [INFO] [stdout] 10: 0x55dd547a3c9b - std::panicking::default_hook::h1b8b42953fdc841d [INFO] [stdout] at src/libstd/panicking.rs:215 [INFO] [stdout] 11: 0x55dd547a4612 - std::panicking::rust_panic_with_hook::he73826f4bb75a21e [INFO] [stdout] at src/libstd/panicking.rs:511 [INFO] [stdout] 12: 0x55dd547a41fb - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:419 [INFO] [stdout] 13: 0x55dd547c8e61 - core::panicking::panic_fmt::hc8f9a0b2af5fb585 [INFO] [stdout] at src/libcore/panicking.rs:111 [INFO] [stdout] 14: 0x55dd547c8c83 - core::option::expect_none_failed::ha34d57526cca3063 [INFO] [stdout] at src/libcore/option.rs:1268 [INFO] [stdout] 15: 0x55dd5471598b - core::result::Result::unwrap::hcf94f426a5dd4d95 [INFO] [stdout] at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libcore/result.rs:1005 [INFO] [stdout] 16: 0x55dd5470084d - memcached::loan_map::tests::concurrent_puts::hce42157d9ee041e6 [INFO] [stdout] at src/loan_map.rs:455 [INFO] [stdout] 17: 0x55dd5470072a - memcached::loan_map::tests::concurrent_puts::{{closure}}::ha4ce6ec9b0f65b64 [INFO] [stdout] at src/loan_map.rs:441 [INFO] [stdout] 18: 0x55dd547195fe - core::ops::function::FnOnce::call_once::hb2140ca5401f3cc7 [INFO] [stdout] at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libcore/ops/function.rs:232 [INFO] [stdout] 19: 0x55dd5473470f - as core::ops::function::FnOnce>::call_once::he1ba1da20629a2d8 [INFO] [stdout] at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/liballoc/boxed.rs:1008 [INFO] [stdout] 20: 0x55dd5475077e - as core::ops::function::FnOnce<()>>::call_once::hf94927858761de4a [INFO] [stdout] at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libstd/panic.rs:318 [INFO] [stdout] 21: 0x55dd5475077e - std::panicking::try::do_call::h1585003392664d93 [INFO] [stdout] at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libstd/panicking.rs:331 [INFO] [stdout] 22: 0x55dd5475077e - std::panicking::try::h43d950f958a74468 [INFO] [stdout] at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libstd/panicking.rs:274 [INFO] [stdout] 23: 0x55dd5475077e - std::panic::catch_unwind::hb5284de2977ddeea [INFO] [stdout] at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libstd/panic.rs:394 [INFO] [stdout] 24: 0x55dd5475077e - test::run_test_in_process::had39bb305b26a3ae [INFO] [stdout] at src/libtest/lib.rs:541 [INFO] [stdout] 25: 0x55dd5475077e - test::run_test::run_test_inner::{{closure}}::h12b1756b854ada1a [INFO] [stdout] at src/libtest/lib.rs:450 [INFO] [stdout] 26: 0x55dd54727cc6 - std::sys_common::backtrace::__rust_begin_short_backtrace::hec04b80bece92bf9 [INFO] [stdout] at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libstd/sys_common/backtrace.rs:130 [INFO] [stdout] 27: 0x55dd5472cfe5 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::heca431434c1ac418 [INFO] [stdout] at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libstd/thread/mod.rs:475 [INFO] [stdout] 28: 0x55dd5472cfe5 - as core::ops::function::FnOnce<()>>::call_once::he2457d582c032747 [INFO] [stdout] at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libstd/panic.rs:318 [INFO] [stdout] 29: 0x55dd5472cfe5 - std::panicking::try::do_call::hbcd49dc3823e8b28 [INFO] [stdout] at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libstd/panicking.rs:331 [INFO] [stdout] 30: 0x55dd5472cfe5 - std::panicking::try::h1ba95c07dd8d422b [INFO] [stdout] at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libstd/panicking.rs:274 [INFO] [stdout] 31: 0x55dd5472cfe5 - std::panic::catch_unwind::h95854794ba9eee4c [INFO] [stdout] at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libstd/panic.rs:394 [INFO] [stdout] 32: 0x55dd5472cfe5 - std::thread::Builder::spawn_unchecked::{{closure}}::h4e297b8574092d6e [INFO] [stdout] at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libstd/thread/mod.rs:474 [INFO] [stdout] 33: 0x55dd5472cfe5 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h1b855aad7f5ac67e [INFO] [stdout] at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libcore/ops/function.rs:232 [INFO] [stdout] 34: 0x55dd547979ff - as core::ops::function::FnOnce>::call_once::h48069b269ca48108 [INFO] [stdout] at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/liballoc/boxed.rs:1008 [INFO] [stdout] 35: 0x55dd547aae83 - as core::ops::function::FnOnce>::call_once::heff660b32cd3afd8 [INFO] [stdout] at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/liballoc/boxed.rs:1008 [INFO] [stdout] 36: 0x55dd547aae83 - std::sys::unix::thread::Thread::new::thread_start::ha538939ed1e2e958 [INFO] [stdout] at src/libstd/sys/unix/thread.rs:87 [INFO] [stdout] 37: 0x7fabd529a6db - start_thread [INFO] [stdout] 38: 0x7fabd4dab88f - __clone [INFO] [stdout] 39: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] loan_map::tests::concurrent_puts [INFO] [stdout] [INFO] [stdout] test result: FAILED. 16 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--bin memcached' [INFO] running `"docker" "inspect" "2c64a0f5536a3d8b0de4e130b622da0b8d5aee7e9dabfadca968bc040a8a4dd2"` [INFO] running `"docker" "rm" "-f" "2c64a0f5536a3d8b0de4e130b622da0b8d5aee7e9dabfadca968bc040a8a4dd2"` [INFO] [stdout] 2c64a0f5536a3d8b0de4e130b622da0b8d5aee7e9dabfadca968bc040a8a4dd2