[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 try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-2/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"` [INFO] [stdout] b66840e62f110ad845c003f09616f0aab765f6ca5df4407ade27a27a835a32ab [INFO] running `"docker" "start" "-a" "b66840e62f110ad845c003f09616f0aab765f6ca5df4407ade27a27a835a32ab"` [INFO] [stderr] Compiling crossbeam-utils v0.3.2 [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 1.16s [INFO] running `"docker" "inspect" "b66840e62f110ad845c003f09616f0aab765f6ca5df4407ade27a27a835a32ab"` [INFO] running `"docker" "rm" "-f" "b66840e62f110ad845c003f09616f0aab765f6ca5df4407ade27a27a835a32ab"` [INFO] [stdout] b66840e62f110ad845c003f09616f0aab765f6ca5df4407ade27a27a835a32ab [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-2/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"` [INFO] [stdout] 66a1d56584046bb00e8382f97f2524a3bf39a3722a8ba0e4f0a4b04a5f5e3cf0 [INFO] running `"docker" "start" "-a" "66a1d56584046bb00e8382f97f2524a3bf39a3722a8ba0e4f0a4b04a5f5e3cf0"` [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 3.20s [INFO] running `"docker" "inspect" "66a1d56584046bb00e8382f97f2524a3bf39a3722a8ba0e4f0a4b04a5f5e3cf0"` [INFO] running `"docker" "rm" "-f" "66a1d56584046bb00e8382f97f2524a3bf39a3722a8ba0e4f0a4b04a5f5e3cf0"` [INFO] [stdout] 66a1d56584046bb00e8382f97f2524a3bf39a3722a8ba0e4f0a4b04a5f5e3cf0 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-2/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"` [INFO] [stdout] 910a56423056da2048cafe5743d89c668bf403d35cb443f62ec4a2cf8f0bc573 [INFO] running `"docker" "start" "-a" "910a56423056da2048cafe5743d89c668bf403d35cb443f62ec4a2cf8f0bc573"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/crater/target/debug/deps/memcached-eb8a5f7b01341794 [INFO] [stdout] [INFO] [stdout] running 17 tests [INFO] [stdout] test loan_map::tests::delete_value ... 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::double_insert_updates_value ... ok [INFO] [stdout] test loan_map::tests::insert_then_get ... ok [INFO] [stdout] test loan_map::tests::version_table_values_dont_interfere ... ok [INFO] [stdout] test loan_map::tests::version_table_overflow_overwrites_old_values ... ok [INFO] [stdout] test tests::existing_key_returns_some_value ... 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_update_single_key ... ok [INFO] [stdout] test tests::bench_access_32_32 ... 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: 0x55ee2ec964e3 - std[698b411d1b74fcff]::sys::unix::backtrace::tracing::imp::unwind_backtrace [INFO] [stdout] at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39 [INFO] [stdout] 1: 0x55ee2ec9216b - std[698b411d1b74fcff]::sys_common::backtrace::_print [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:70 [INFO] [stdout] 2: 0x55ee2ec95116 - std[698b411d1b74fcff]::panicking::default_hook::{closure#1} [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:58 [INFO] [stdout] at src/libstd/panicking.rs:200 [INFO] [stdout] 3: 0x55ee2ec94e17 - std[698b411d1b74fcff]::panicking::default_hook [INFO] [stdout] at src/libstd/panicking.rs:209 [INFO] [stdout] 4: 0x55ee2ec95820 - std[698b411d1b74fcff]::panicking::rust_panic_with_hook [INFO] [stdout] at src/libstd/panicking.rs:478 [INFO] [stdout] 5: 0x55ee2ec953a1 - std[698b411d1b74fcff]::panicking::continue_panic_fmt [INFO] [stdout] at src/libstd/panicking.rs:385 [INFO] [stdout] 6: 0x55ee2ec95285 - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:312 [INFO] [stdout] 7: 0x55ee2ecab6cc - core[b849d6d0cd70c3a8]::panicking::panic_fmt [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 8: 0x55ee2ec06c62 - core[b849d6d0cd70c3a8]::result::unwrap_failed:: [INFO] [stdout] at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libcore/macros.rs:16 [INFO] [stdout] 9: 0x55ee2ec0b1e6 - >::unwrap [INFO] [stdout] at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libcore/result.rs:798 [INFO] [stdout] 10: 0x55ee2ebf92ca - memcached[f7e61d6a1f17eb7d]::loan_map::tests::concurrent_puts [INFO] [stdout] at src/loan_map.rs:455 [INFO] [stdout] 11: 0x55ee2ebf91a9 - memcached[f7e61d6a1f17eb7d]::loan_map::tests::concurrent_puts::{closure#0} [INFO] [stdout] at src/loan_map.rs:441 [INFO] [stdout] 12: 0x55ee2ec128ed - >::call_once [INFO] [stdout] at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libcore/ops/function.rs:231 [INFO] [stdout] 13: 0x55ee2ec2f4de - >::call_box [INFO] [stdout] at src/libtest/lib.rs:1474 [INFO] [stdout] at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libcore/ops/function.rs:231 [INFO] [stdout] at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/liballoc/boxed.rs:734 [INFO] [stdout] 14: 0x55ee2ec98ae9 - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:92 [INFO] [stdout] 15: 0x55ee2ec49b67 - test[ea847f4bd1b1afc4]::run_test::run_test_inner::{closure#0} [INFO] [stdout] at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panicking.rs:276 [INFO] [stdout] at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panic.rs:388 [INFO] [stdout] at src/libtest/lib.rs:1429 [INFO] [stdout] 16: 0x55ee2ec24d74 - std[698b411d1b74fcff]::sys_common::backtrace::__rust_begin_short_backtrace:: [INFO] [stdout] at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/sys_common/backtrace.rs:135 [INFO] [stdout] 17: 0x55ee2ec24894 - std[698b411d1b74fcff]::panicking::try::do_call::::spawn_unchecked::{closure#0}::{closure#0}>, ()> [INFO] [stdout] at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/thread/mod.rs:469 [INFO] [stdout] at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panic.rs:309 [INFO] [stdout] at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panicking.rs:297 [INFO] [stdout] 18: 0x55ee2ec98ae9 - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:92 [INFO] [stdout] 19: 0x55ee2ec2f21c - <::spawn_unchecked::{closure#0} as alloc[f4750af829db9b76]::boxed::FnBox<()>>::call_box [INFO] [stdout] at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panicking.rs:276 [INFO] [stdout] at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panic.rs:388 [INFO] [stdout] at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/thread/mod.rs:468 [INFO] [stdout] at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/liballoc/boxed.rs:734 [INFO] [stdout] 20: 0x55ee2ec9820d - ::new::thread_start [INFO] [stdout] at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/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: 0x7fe8dd1c4493 - start_thread [INFO] [stdout] 22: 0x7fe8dcceface - __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" "910a56423056da2048cafe5743d89c668bf403d35cb443f62ec4a2cf8f0bc573"` [INFO] running `"docker" "rm" "-f" "910a56423056da2048cafe5743d89c668bf403d35cb443f62ec4a2cf8f0bc573"` [INFO] [stdout] 910a56423056da2048cafe5743d89c668bf403d35cb443f62ec4a2cf8f0bc573