[INFO] updating cached repository https://github.com/SonicFrog/furry-bassoon [INFO] running `Command { std: "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", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 03bc7cd0bce6dd1aeb5033b42ff0bbde83d54fa5 [INFO] testing SonicFrog/furry-bassoon against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSonicFrog%2Ffurry-bassoon" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/SonicFrog/furry-bassoon on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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-7/source/Cargo.toml [INFO] crate git repo https://github.com/SonicFrog/furry-bassoon already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 11c14daa458ac09e88368fbebe6f473429ddfefa5277d4f974f9c3a6eab7976b [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "11c14daa458ac09e88368fbebe6f473429ddfefa5277d4f974f9c3a6eab7976b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "11c14daa458ac09e88368fbebe6f473429ddfefa5277d4f974f9c3a6eab7976b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "11c14daa458ac09e88368fbebe6f473429ddfefa5277d4f974f9c3a6eab7976b", kill_on_drop: false }` [INFO] [stdout] 11c14daa458ac09e88368fbebe6f473429ddfefa5277d4f974f9c3a6eab7976b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 208d35b89d059072f184ce21877bb681bc78484c5957c1b2bfd06c50216aa4a2 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "208d35b89d059072f184ce21877bb681bc78484c5957c1b2bfd06c50216aa4a2", kill_on_drop: false }` [INFO] [stderr] Compiling rand_core v0.1.0-pre.0 [INFO] [stderr] Compiling cfg-if v0.1.2 [INFO] [stderr] Compiling owning_ref v0.3.3 [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/rustwide/workdir) [INFO] [stdout] warning: field is never read: `hasher` [INFO] [stdout] --> src/map.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | hasher: DefaultHasher, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `remove` [INFO] [stdout] --> src/map.rs:79:12 [INFO] [stdout] | [INFO] [stdout] 79 | pub fn remove(&self, key: &K) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `DEFAULT_TABLE_CAPACITY` [INFO] [stdout] --> src/loan_map.rs:14:1 [INFO] [stdout] | [INFO] [stdout] 14 | const DEFAULT_TABLE_CAPACITY: usize = 128; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `DEFAULT_BUCKET_CAPACITY` [INFO] [stdout] --> src/loan_map.rs:15:1 [INFO] [stdout] | [INFO] [stdout] 15 | const DEFAULT_BUCKET_CAPACITY: usize = 128; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `head` [INFO] [stdout] --> src/loan_map.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | head: AtomicUsize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `with_capacity` [INFO] [stdout] --> src/loan_map.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | fn with_capacity(cap: usize) -> VersionTable { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `current_head` [INFO] [stdout] --> src/loan_map.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | fn current_head(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `next_head` [INFO] [stdout] --> src/loan_map.rs:37:8 [INFO] [stdout] | [INFO] [stdout] 37 | fn next_head(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `scan` [INFO] [stdout] --> src/loan_map.rs:41:8 [INFO] [stdout] | [INFO] [stdout] 41 | fn scan(&self, f: F) -> RwLockReadGuard> [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `remove` [INFO] [stdout] --> src/loan_map.rs:59:8 [INFO] [stdout] | [INFO] [stdout] 59 | fn remove(&self, key: K) -> Option { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `scan_mut` [INFO] [stdout] --> src/loan_map.rs:67:8 [INFO] [stdout] | [INFO] [stdout] 67 | fn scan_mut(&self, f: F) -> RwLockWriteGuard> [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `update` [INFO] [stdout] --> src/loan_map.rs:85:8 [INFO] [stdout] | [INFO] [stdout] 85 | fn update(&self, key: K, value: V) -> Option { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `newest` [INFO] [stdout] --> src/loan_map.rs:92:8 [INFO] [stdout] | [INFO] [stdout] 92 | fn newest(&self, key: &K) -> Option>> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Empty` [INFO] [stdout] --> src/loan_map.rs:114:5 [INFO] [stdout] | [INFO] [stdout] 114 | Empty, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Removed` [INFO] [stdout] --> src/loan_map.rs:115:5 [INFO] [stdout] | [INFO] [stdout] 115 | Removed(K), [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Contains` [INFO] [stdout] --> src/loan_map.rs:116:5 [INFO] [stdout] | [INFO] [stdout] 116 | Contains(K, V), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `is_free` [INFO] [stdout] --> src/loan_map.rs:120:8 [INFO] [stdout] | [INFO] [stdout] 120 | fn is_free(&self) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `value` [INFO] [stdout] --> src/loan_map.rs:127:8 [INFO] [stdout] | [INFO] [stdout] 127 | fn value(self) -> Option { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `key` [INFO] [stdout] --> src/loan_map.rs:135:8 [INFO] [stdout] | [INFO] [stdout] 135 | fn key(&self) -> Option<&K> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `value_ref` [INFO] [stdout] --> src/loan_map.rs:143:8 [INFO] [stdout] | [INFO] [stdout] 143 | fn value_ref(&self) -> Result<&V, ()> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `key_matches` [INFO] [stdout] --> src/loan_map.rs:151:8 [INFO] [stdout] | [INFO] [stdout] 151 | fn key_matches(&self, key: &K) -> bool [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `hash_builder` [INFO] [stdout] --> src/loan_map.rs:167:5 [INFO] [stdout] | [INFO] [stdout] 167 | hash_builder: RandomState, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `buckets` [INFO] [stdout] --> src/loan_map.rs:168:5 [INFO] [stdout] | [INFO] [stdout] 168 | buckets: Vec>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `with_capacity` [INFO] [stdout] --> src/loan_map.rs:175:8 [INFO] [stdout] | [INFO] [stdout] 175 | fn with_capacity(cap: usize, bucket_size: usize) -> Table { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `hash` [INFO] [stdout] --> src/loan_map.rs:185:8 [INFO] [stdout] | [INFO] [stdout] 185 | fn hash(&self, key: &K) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `scan` [INFO] [stdout] --> src/loan_map.rs:192:8 [INFO] [stdout] | [INFO] [stdout] 192 | fn scan(&self, key: &K, matches: F) -> RwLockReadGuard> [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `scan_mut` [INFO] [stdout] --> src/loan_map.rs:198:8 [INFO] [stdout] | [INFO] [stdout] 198 | fn scan_mut(&self, key: &K, matches: F) -> RwLockWriteGuard> [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `lookup` [INFO] [stdout] --> src/loan_map.rs:204:8 [INFO] [stdout] | [INFO] [stdout] 204 | fn lookup(&self, key: &K) -> RwLockReadGuard> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `lookup_or_free` [INFO] [stdout] --> src/loan_map.rs:212:8 [INFO] [stdout] | [INFO] [stdout] 212 | fn lookup_or_free(&self, key: &K) -> RwLockWriteGuard> { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `remove` [INFO] [stdout] --> src/loan_map.rs:222:8 [INFO] [stdout] | [INFO] [stdout] 222 | fn remove(&self, key: K) -> Option { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `lookup_or_free_mut` [INFO] [stdout] --> src/loan_map.rs:226:8 [INFO] [stdout] | [INFO] [stdout] 226 | fn lookup_or_free_mut(&self, key: &K) -> RwLockWriteGuard> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `lookup_mut` [INFO] [stdout] --> src/loan_map.rs:233:8 [INFO] [stdout] | [INFO] [stdout] 233 | fn lookup_mut(&self, key: &K) -> RwLockWriteGuard> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `LoanMap` [INFO] [stdout] --> src/loan_map.rs:283:12 [INFO] [stdout] | [INFO] [stdout] 283 | pub struct LoanMap [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/loan_map.rs:295:12 [INFO] [stdout] | [INFO] [stdout] 295 | pub fn new() -> LoanMap { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `with_capacity` [INFO] [stdout] --> src/loan_map.rs:301:12 [INFO] [stdout] | [INFO] [stdout] 301 | pub fn with_capacity(cap: usize, bucket_size: usize) -> LoanMap { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get` [INFO] [stdout] --> src/loan_map.rs:307:12 [INFO] [stdout] | [INFO] [stdout] 307 | pub fn get(&self, key: &K) -> Option> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `upsert` [INFO] [stdout] --> src/loan_map.rs:319:12 [INFO] [stdout] | [INFO] [stdout] 319 | pub fn upsert(&self, key: K, f: F) -> Option [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `put` [INFO] [stdout] --> src/loan_map.rs:333:12 [INFO] [stdout] | [INFO] [stdout] 333 | pub fn put(&self, key: K, val: V) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `remove` [INFO] [stdout] --> src/loan_map.rs:340:12 [INFO] [stdout] | [INFO] [stdout] 340 | pub fn remove(&self, key: K) -> Option { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 39 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.34s [INFO] running `Command { std: "docker" "inspect" "208d35b89d059072f184ce21877bb681bc78484c5957c1b2bfd06c50216aa4a2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "208d35b89d059072f184ce21877bb681bc78484c5957c1b2bfd06c50216aa4a2", kill_on_drop: false }` [INFO] [stdout] 208d35b89d059072f184ce21877bb681bc78484c5957c1b2bfd06c50216aa4a2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] afad1024aaa4231114213b6fb228d55dab91eb7bd3694669235a8f25bed92749 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "afad1024aaa4231114213b6fb228d55dab91eb7bd3694669235a8f25bed92749", kill_on_drop: false }` [INFO] [stderr] Compiling memcached v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `AtomicI64`, `Ordering` [INFO] [stdout] --> src/loan_map.rs:358:29 [INFO] [stdout] | [INFO] [stdout] 358 | use std::sync::atomic::{AtomicI64, Ordering}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `keys` [INFO] [stdout] --> src/loan_map.rs:617:13 [INFO] [stdout] | [INFO] [stdout] 617 | let keys = gen_rand_strings(size * 2, size); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_keys` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `values` [INFO] [stdout] --> src/loan_map.rs:618:13 [INFO] [stdout] | [INFO] [stdout] 618 | let values = gen_rand_strings(size * 2, size); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_values` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/loan_map.rs:641:19 [INFO] [stdout] | [INFO] [stdout] 641 | for (key, value) in kv1 { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/loan_map.rs:492:33 [INFO] [stdout] | [INFO] [stdout] 492 | ... let mut elapsed; [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/loan_map.rs:474:37 [INFO] [stdout] | [INFO] [stdout] 474 | ... let mut start; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `hasher` [INFO] [stdout] --> src/map.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | hasher: DefaultHasher, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `remove` [INFO] [stdout] --> src/loan_map.rs:59:8 [INFO] [stdout] | [INFO] [stdout] 59 | fn remove(&self, key: K) -> Option { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `is_free` [INFO] [stdout] --> src/loan_map.rs:120:8 [INFO] [stdout] | [INFO] [stdout] 120 | fn is_free(&self) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `key` [INFO] [stdout] --> src/loan_map.rs:135:8 [INFO] [stdout] | [INFO] [stdout] 135 | fn key(&self) -> Option<&K> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `lookup_or_free` [INFO] [stdout] --> src/loan_map.rs:212:8 [INFO] [stdout] | [INFO] [stdout] 212 | fn lookup_or_free(&self, key: &K) -> RwLockWriteGuard> { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `remove` [INFO] [stdout] --> src/loan_map.rs:222:8 [INFO] [stdout] | [INFO] [stdout] 222 | fn remove(&self, key: K) -> Option { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `lookup_mut` [INFO] [stdout] --> src/loan_map.rs:233:8 [INFO] [stdout] | [INFO] [stdout] 233 | fn lookup_mut(&self, key: &K) -> RwLockWriteGuard> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `upsert` [INFO] [stdout] --> src/loan_map.rs:319:12 [INFO] [stdout] | [INFO] [stdout] 319 | pub fn upsert(&self, key: K, f: F) -> Option [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.62s [INFO] running `Command { std: "docker" "inspect" "afad1024aaa4231114213b6fb228d55dab91eb7bd3694669235a8f25bed92749", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "afad1024aaa4231114213b6fb228d55dab91eb7bd3694669235a8f25bed92749", kill_on_drop: false }` [INFO] [stdout] afad1024aaa4231114213b6fb228d55dab91eb7bd3694669235a8f25bed92749 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 8dd55a491dbb0fbc9f670b330e9cb2917422c6c4f7abad55e2e856b8a4b53248 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "8dd55a491dbb0fbc9f670b330e9cb2917422c6c4f7abad55e2e856b8a4b53248", kill_on_drop: false }` [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: associated function is never used: `remove` [INFO] [stderr] --> src/loan_map.rs:59:8 [INFO] [stderr] | [INFO] [stderr] 59 | fn remove(&self, key: K) -> Option { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `is_free` [INFO] [stderr] --> src/loan_map.rs:120:8 [INFO] [stderr] | [INFO] [stderr] 120 | fn is_free(&self) -> bool { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `key` [INFO] [stderr] --> src/loan_map.rs:135:8 [INFO] [stderr] | [INFO] [stderr] 135 | fn key(&self) -> Option<&K> { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `lookup_or_free` [INFO] [stderr] --> src/loan_map.rs:212:8 [INFO] [stderr] | [INFO] [stderr] 212 | fn lookup_or_free(&self, key: &K) -> RwLockWriteGuard> { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `remove` [INFO] [stderr] --> src/loan_map.rs:222:8 [INFO] [stderr] | [INFO] [stderr] 222 | fn remove(&self, key: K) -> Option { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `lookup_mut` [INFO] [stderr] --> src/loan_map.rs:233:8 [INFO] [stderr] | [INFO] [stderr] 233 | fn lookup_mut(&self, key: &K) -> RwLockWriteGuard> { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `upsert` [INFO] [stderr] --> src/loan_map.rs:319:12 [INFO] [stderr] | [INFO] [stderr] 319 | pub fn upsert(&self, key: K, f: F) -> Option [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 14 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/memcached-62bc39e99a164d72 [INFO] [stdout] [INFO] [stdout] running 17 tests [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_values_dont_interfere ... 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::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::version_table_multi_version_multi_key ... ok [INFO] [stdout] test loan_map::tests::insert_then_remove ... 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:455:87 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x556a83d9ab35 - backtrace::backtrace::libunwind::trace::hea89dfbbfe67f40d [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stdout] 1: 0x556a83d9ab35 - backtrace::backtrace::trace_unsynchronized::h0513dd713d7644d4 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x556a83d9ab35 - std::sys_common::backtrace::_print_fmt::h040abae64e4a24a9 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stdout] 3: 0x556a83d9ab35 - ::fmt::hb4bdb37c3c335733 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stdout] 4: 0x556a83dc290c - core::fmt::write::h540ac4a6a1232abc [INFO] [stdout] at src/libcore/fmt/mod.rs:1076 [INFO] [stdout] 5: 0x556a83d24165 - std::io::Write::write_fmt::h4be0daababb55bba [INFO] [stdout] at /rustc/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/src/libstd/io/mod.rs:1539 [INFO] [stdout] 6: 0x556a83d95061 - std::io::impls::>::write_fmt::h83c1e1aa73f374f5 [INFO] [stdout] at src/libstd/io/impls.rs:176 [INFO] [stdout] 7: 0x556a83d9d2b0 - std::sys_common::backtrace::_print::hb55cc635eaf1882e [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stdout] 8: 0x556a83d9d2b0 - std::sys_common::backtrace::print::h2b2218fa55714084 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stdout] 9: 0x556a83d9d2b0 - std::panicking::default_hook::{{closure}}::h578517c025765cf3 [INFO] [stdout] at src/libstd/panicking.rs:198 [INFO] [stdout] 10: 0x556a83d9cfaa - std::panicking::default_hook::h4cafc94c2fc640fb [INFO] [stdout] at src/libstd/panicking.rs:214 [INFO] [stdout] 11: 0x556a83d9d8f3 - std::panicking::rust_panic_with_hook::h3eeb5001beeca5c3 [INFO] [stdout] at src/libstd/panicking.rs:526 [INFO] [stdout] 12: 0x556a83d9d4eb - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:437 [INFO] [stdout] 13: 0x556a83dc12a1 - core::panicking::panic_fmt::h78830ea6a34e7206 [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 14: 0x556a83dc10c3 - core::option::expect_none_failed::hf79bbb5ca7e09e08 [INFO] [stdout] at src/libcore/option.rs:1269 [INFO] [stdout] 15: 0x556a83d16c8b - core::result::Result::unwrap::h83b8e39a38c8d121 [INFO] [stdout] at /rustc/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/src/libcore/result.rs:1005 [INFO] [stdout] 16: 0x556a83d0185d - memcached::loan_map::tests::concurrent_puts::h5777a86fe51a545b [INFO] [stdout] at src/loan_map.rs:455 [INFO] [stdout] 17: 0x556a83d0173a - memcached::loan_map::tests::concurrent_puts::{{closure}}::h61bb97db29e566b6 [INFO] [stdout] at src/loan_map.rs:441 [INFO] [stdout] 18: 0x556a83cfaf5e - core::ops::function::FnOnce::call_once::h4653785ecd5850d6 [INFO] [stdout] at /rustc/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/src/libcore/ops/function.rs:233 [INFO] [stdout] 19: 0x556a83d4b8cc - as core::ops::function::FnOnce>::call_once::h8340ba6798e0c4ff [INFO] [stdout] at /rustc/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/src/liballoc/boxed.rs:1081 [INFO] [stdout] 20: 0x556a83d4b8cc - as core::ops::function::FnOnce<()>>::call_once::h5590e98676605094 [INFO] [stdout] at /rustc/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/src/libstd/panic.rs:318 [INFO] [stdout] 21: 0x556a83d4b8cc - std::panicking::try::do_call::hd8680a2dbb0ed3c4 [INFO] [stdout] at /rustc/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/src/libstd/panicking.rs:348 [INFO] [stdout] 22: 0x556a83d4b8cc - std::panicking::try::h46b4de2d705e7a8d [INFO] [stdout] at /rustc/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/src/libstd/panicking.rs:325 [INFO] [stdout] 23: 0x556a83d4b8cc - std::panic::catch_unwind::h059b3f06991e0a9c [INFO] [stdout] at /rustc/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/src/libstd/panic.rs:394 [INFO] [stdout] 24: 0x556a83d4b8cc - test::run_test_in_process::h5ae08a65430494a4 [INFO] [stdout] at src/libtest/lib.rs:541 [INFO] [stdout] 25: 0x556a83d4b8cc - test::run_test::run_test_inner::{{closure}}::h4b36073838376ae8 [INFO] [stdout] at src/libtest/lib.rs:450 [INFO] [stdout] 26: 0x556a83d23656 - std::sys_common::backtrace::__rust_begin_short_backtrace::h0169d0be588b8bf0 [INFO] [stdout] at /rustc/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/src/libstd/sys_common/backtrace.rs:130 [INFO] [stdout] 27: 0x556a83d28645 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h71bfc37e887d3973 [INFO] [stdout] at /rustc/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/src/libstd/thread/mod.rs:475 [INFO] [stdout] 28: 0x556a83d28645 - as core::ops::function::FnOnce<()>>::call_once::h36c65072907dc180 [INFO] [stdout] at /rustc/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/src/libstd/panic.rs:318 [INFO] [stdout] 29: 0x556a83d28645 - std::panicking::try::do_call::h4e0f426e17cd216c [INFO] [stdout] at /rustc/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/src/libstd/panicking.rs:348 [INFO] [stdout] 30: 0x556a83d28645 - std::panicking::try::hd05e4ef6b4303d29 [INFO] [stdout] at /rustc/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/src/libstd/panicking.rs:325 [INFO] [stdout] 31: 0x556a83d28645 - std::panic::catch_unwind::h19a1127ec729c5dd [INFO] [stdout] at /rustc/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/src/libstd/panic.rs:394 [INFO] [stdout] 32: 0x556a83d28645 - std::thread::Builder::spawn_unchecked::{{closure}}::h011300735f06b1e2 [INFO] [stdout] at /rustc/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/src/libstd/thread/mod.rs:474 [INFO] [stdout] 33: 0x556a83d28645 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h1e3c55f31f1d122e [INFO] [stdout] at /rustc/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/src/libcore/ops/function.rs:233 [INFO] [stdout] 34: 0x556a83da3b2a - as core::ops::function::FnOnce>::call_once::hc0e15d78a519721e [INFO] [stdout] at /rustc/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/src/liballoc/boxed.rs:1081 [INFO] [stdout] 35: 0x556a83da3b2a - as core::ops::function::FnOnce>::call_once::h211da8fffb09f192 [INFO] [stdout] at /rustc/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/src/liballoc/boxed.rs:1081 [INFO] [stdout] 36: 0x556a83da3b2a - std::sys::unix::thread::Thread::new::thread_start::h29594ddebf23e421 [INFO] [stdout] at src/libstd/sys/unix/thread.rs:87 [INFO] [stdout] 37: 0x7fc8b56ff609 - start_thread [INFO] [stdout] 38: 0x7fc8b560b103 - __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 `Command { std: "docker" "inspect" "8dd55a491dbb0fbc9f670b330e9cb2917422c6c4f7abad55e2e856b8a4b53248", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8dd55a491dbb0fbc9f670b330e9cb2917422c6c4f7abad55e2e856b8a4b53248", kill_on_drop: false }` [INFO] [stdout] 8dd55a491dbb0fbc9f670b330e9cb2917422c6c4f7abad55e2e856b8a4b53248