[INFO] updating cached repository SonicFrog/furry-bassoon [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/SonicFrog/furry-bassoon [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/SonicFrog/furry-bassoon" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/SonicFrog/furry-bassoon"` [INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/SonicFrog/furry-bassoon'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/SonicFrog/furry-bassoon" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/SonicFrog/furry-bassoon"` [INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/SonicFrog/furry-bassoon'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 03bc7cd0bce6dd1aeb5033b42ff0bbde83d54fa5 [INFO] sha for GitHub repo SonicFrog/furry-bassoon: 03bc7cd0bce6dd1aeb5033b42ff0bbde83d54fa5 [INFO] validating manifest of SonicFrog/furry-bassoon on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of SonicFrog/furry-bassoon on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing SonicFrog/furry-bassoon [INFO] finished frobbing SonicFrog/furry-bassoon [INFO] frobbed toml for SonicFrog/furry-bassoon written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/SonicFrog/furry-bassoon/Cargo.toml [INFO] started frobbing SonicFrog/furry-bassoon [INFO] finished frobbing SonicFrog/furry-bassoon [INFO] frobbed toml for SonicFrog/furry-bassoon written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/SonicFrog/furry-bassoon/Cargo.toml [INFO] crate SonicFrog/furry-bassoon has a lockfile. skipping [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing SonicFrog/furry-bassoon against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/SonicFrog/furry-bassoon:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"` [INFO] [stdout] 35421da3539d09370660ade8e8508e6851218e01033a4d221637522b2651cfaa [INFO] running `"docker" "start" "-a" "35421da3539d09370660ade8e8508e6851218e01033a4d221637522b2651cfaa"` [INFO] [stderr] Compiling rand_core v0.1.0-pre.0 [INFO] [stderr] Compiling crossbeam-utils v0.3.2 [INFO] [stderr] Compiling rand v0.5.0-pre.0 [INFO] [stderr] Compiling memcached v0.1.0 (/opt/crater/workdir) [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: struct is never constructed: `VersionTable` [INFO] [stderr] --> src/loan_map.rs:17:1 [INFO] [stderr] | [INFO] [stderr] 17 | struct VersionTable { [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: enum is never used: `Bucket` [INFO] [stderr] --> src/loan_map.rs:113:1 [INFO] [stderr] | [INFO] [stderr] 113 | enum Bucket { [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: struct is never constructed: `Table` [INFO] [stderr] --> src/loan_map.rs:163:1 [INFO] [stderr] | [INFO] [stderr] 163 | / struct Table [INFO] [stderr] 164 | | where [INFO] [stderr] 165 | | K: PartialEq + Hash, [INFO] [stderr] 166 | | { [INFO] [stderr] 167 | | hash_builder: RandomState, [INFO] [stderr] 168 | | buckets: Vec>, [INFO] [stderr] 169 | | } [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: `ReadGuard` [INFO] [stderr] --> src/loan_map.rs:244:1 [INFO] [stderr] | [INFO] [stderr] 244 | pub struct ReadGuard<'a, K: 'a + PartialEq + Hash, V: 'a> { [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 [INFO] [stderr] 284 | | where [INFO] [stderr] 285 | | K: PartialEq + Hash, [INFO] [stderr] 286 | | { [INFO] [stderr] 287 | | table: RwLock>, [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 { [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] Finished dev [unoptimized + debuginfo] target(s) in 4.35s [INFO] running `"docker" "inspect" "35421da3539d09370660ade8e8508e6851218e01033a4d221637522b2651cfaa"` [INFO] running `"docker" "rm" "-f" "35421da3539d09370660ade8e8508e6851218e01033a4d221637522b2651cfaa"` [INFO] [stdout] 35421da3539d09370660ade8e8508e6851218e01033a4d221637522b2651cfaa [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/SonicFrog/furry-bassoon:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"` [INFO] [stdout] 2b8243248e1628cfaaf934b32970fc0719e359382efa52748037cfb8ab510147 [INFO] running `"docker" "start" "-a" "2b8243248e1628cfaaf934b32970fc0719e359382efa52748037cfb8ab510147"` [INFO] [stderr] Compiling memcached v0.1.0 (/opt/crater/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: 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 { [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] Finished dev [unoptimized + debuginfo] target(s) in 2.73s [INFO] running `"docker" "inspect" "2b8243248e1628cfaaf934b32970fc0719e359382efa52748037cfb8ab510147"` [INFO] running `"docker" "rm" "-f" "2b8243248e1628cfaaf934b32970fc0719e359382efa52748037cfb8ab510147"` [INFO] [stdout] 2b8243248e1628cfaaf934b32970fc0719e359382efa52748037cfb8ab510147 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/SonicFrog/furry-bassoon:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"` [INFO] [stdout] bea44a8b2e6d9ea5288be96f135f7157f880dd732ad56cf30532816f64806dfc [INFO] running `"docker" "start" "-a" "bea44a8b2e6d9ea5288be96f135f7157f880dd732ad56cf30532816f64806dfc"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/memcached-d82253bee45c5c42 [INFO] [stdout] [INFO] [stdout] running 17 tests [INFO] [stdout] test loan_map::tests::double_insert_updates_value ... ok [INFO] [stdout] test loan_map::tests::get_inexistent_value ... ok [INFO] [stdout] test loan_map::tests::delete_value ... ok [INFO] [stdout] test loan_map::tests::insert_then_get ... ok [INFO] [stdout] test loan_map::tests::insert_then_remove ... ok [INFO] [stdout] test loan_map::tests::version_table_values_dont_interfere ... ok [INFO] [stdout] test loan_map::tests::version_table_update_single_key ... ok [INFO] [stdout] test tests::existing_key_returns_some_value ... ok [INFO] [stdout] test tests::bench_access_32_32 ... ok [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_overflow_overwrites_old_values ... 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/libcore/result.rs:997:5 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5648e032f5e3 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::hb587d2734f1dc7c5 [INFO] [stdout] at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39 [INFO] [stdout] 1: 0x5648e032b28b - std::sys_common::backtrace::_print::he39717f7cfbd122d [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:70 [INFO] [stdout] 2: 0x5648e032e246 - std::panicking::default_hook::{{closure}}::hb7f1ae5149814e5e [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:58 [INFO] [stdout] at src/libstd/panicking.rs:200 [INFO] [stdout] 3: 0x5648e032df47 - std::panicking::default_hook::hc2b73d8ffc772b35 [INFO] [stdout] at src/libstd/panicking.rs:209 [INFO] [stdout] 4: 0x5648e032e950 - std::panicking::rust_panic_with_hook::h625072734a147d22 [INFO] [stdout] at src/libstd/panicking.rs:478 [INFO] [stdout] 5: 0x5648e032e4d1 - std::panicking::continue_panic_fmt::h3d3b66f689c3e04e [INFO] [stdout] at src/libstd/panicking.rs:385 [INFO] [stdout] 6: 0x5648e032e3b5 - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:312 [INFO] [stdout] 7: 0x5648e0340d0c - core::panicking::panic_fmt::h3dc182ff7fefc0c0 [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 8: 0x5648e02a2912 - core::result::unwrap_failed::h21cc37f2bbf47184 [INFO] [stdout] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libcore/macros.rs:16 [INFO] [stdout] 9: 0x5648e02a09b6 - >::unwrap::h74a95855f2530f26 [INFO] [stdout] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libcore/result.rs:798 [INFO] [stdout] 10: 0x5648e0291eba - memcached::loan_map::tests::concurrent_puts::h9e7d63dd30d5b3b7 [INFO] [stdout] at src/loan_map.rs:455 [INFO] [stdout] 11: 0x5648e0291d99 - memcached::loan_map::tests::concurrent_puts::{{closure}}::h8bbb21a3545063fc [INFO] [stdout] at src/loan_map.rs:441 [INFO] [stdout] 12: 0x5648e02a7c3d - core::ops::function::FnOnce::call_once::h24422828ab8faf8d [INFO] [stdout] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libcore/ops/function.rs:231 [INFO] [stdout] 13: 0x5648e02c57fe - >::call_box::h6b39ff82621fe3f5 [INFO] [stdout] at src/libtest/lib.rs:1474 [INFO] [stdout] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libcore/ops/function.rs:231 [INFO] [stdout] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/liballoc/boxed.rs:734 [INFO] [stdout] 14: 0x5648e0331ba9 - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:92 [INFO] [stdout] 15: 0x5648e02e2c27 - test::run_test::run_test_inner::{{closure}}::h57942e399d1cc807 [INFO] [stdout] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libstd/panicking.rs:276 [INFO] [stdout] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libstd/panic.rs:388 [INFO] [stdout] at src/libtest/lib.rs:1429 [INFO] [stdout] 16: 0x5648e02be244 - std::sys_common::backtrace::__rust_begin_short_backtrace::h85c77ad9ddf8fba3 [INFO] [stdout] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libstd/sys_common/backtrace.rs:135 [INFO] [stdout] 17: 0x5648e02be914 - std::panicking::try::do_call::hf5b2072d080453d1 [INFO] [stdout] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libstd/thread/mod.rs:469 [INFO] [stdout] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libstd/panic.rs:309 [INFO] [stdout] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libstd/panicking.rs:297 [INFO] [stdout] 18: 0x5648e0331ba9 - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:92 [INFO] [stdout] 19: 0x5648e02c5a7c - >::call_box::hf0a5ea81172c4bf3 [INFO] [stdout] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libstd/panicking.rs:276 [INFO] [stdout] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libstd/panic.rs:388 [INFO] [stdout] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libstd/thread/mod.rs:468 [INFO] [stdout] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/liballoc/boxed.rs:734 [INFO] [stdout] 20: 0x5648e03312cd - std::sys::unix::thread::Thread::new::thread_start::h60ff5f253b4125d5 [INFO] [stdout] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/liballoc/boxed.rs:744 [INFO] [stdout] at src/libstd/sys_common/thread.rs:14 [INFO] [stdout] at src/libstd/sys/unix/thread.rs:81 [INFO] [stdout] 21: 0x7fbcc2ed1493 - start_thread [INFO] [stdout] 22: 0x7fbcc29fcace - __clone [INFO] [stdout] 23: 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" "bea44a8b2e6d9ea5288be96f135f7157f880dd732ad56cf30532816f64806dfc"` [INFO] running `"docker" "rm" "-f" "bea44a8b2e6d9ea5288be96f135f7157f880dd732ad56cf30532816f64806dfc"` [INFO] [stdout] bea44a8b2e6d9ea5288be96f135f7157f880dd732ad56cf30532816f64806dfc