[INFO] fetching crate logmap 0.2.0...
[INFO] checking logmap-0.2.0 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate logmap 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate logmap 0.2.0 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate logmap 0.2.0
[INFO] finished tweaking crates.io crate logmap 0.2.0
[INFO] tweaked toml for crates.io crate logmap 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 54e8db552fe1af003cd25af98caf6dc793a931c4a764cc5dcc4a56d51225288d
[INFO] running `"docker" "start" "-a" "54e8db552fe1af003cd25af98caf6dc793a931c4a764cc5dcc4a56d51225288d"`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking abox v0.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]     Checking logmap v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `update`
[INFO] [stderr]    --> src/logmap.rs:228:5
[INFO] [stderr]     |
[INFO] [stderr] 228 |     fn update(&self, key: K, value: V) -> Option<V> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `key`
[INFO] [stderr]    --> src/logmap.rs:332:5
[INFO] [stderr]     |
[INFO] [stderr] 332 |     fn key(&self) -> Option<&K> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `key_matches`
[INFO] [stderr]    --> src/logmap.rs:356:5
[INFO] [stderr]     |
[INFO] [stderr] 356 | /     fn key_matches(&self, key: &K) -> bool
[INFO] [stderr] 357 | |         where
[INFO] [stderr] 358 | |         K: PartialEq,
[INFO] [stderr] 359 | |     {
[INFO] [stderr] ...   |
[INFO] [stderr] 364 | |         }
[INFO] [stderr] 365 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get`
[INFO] [stderr]    --> src/optimap.rs:147:5
[INFO] [stderr]     |
[INFO] [stderr] 147 |     fn get(&self, key: &K) -> Option<Arc<BucketEntry<K, V>>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `value`
[INFO] [stderr]    --> src/optimap.rs:252:5
[INFO] [stderr]     |
[INFO] [stderr] 252 |     fn value(self) -> V {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking core_affinity v0.5.10
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/optimap.rs:574:13
[INFO] [stderr]     |
[INFO] [stderr] 574 |         for mut workload in &mut workloads {
[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/optimap.rs:575:17
[INFO] [stderr]     |
[INFO] [stderr] 575 |             let mut slice = Arc::get_mut(workload).unwrap().as_mut_slice();
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `key`
[INFO] [stderr]    --> src/logmap.rs:332:5
[INFO] [stderr]     |
[INFO] [stderr] 332 |     fn key(&self) -> Option<&K> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `key_matches`
[INFO] [stderr]    --> src/logmap.rs:356:5
[INFO] [stderr]     |
[INFO] [stderr] 356 | /     fn key_matches(&self, key: &K) -> bool
[INFO] [stderr] 357 | |         where
[INFO] [stderr] 358 | |         K: PartialEq,
[INFO] [stderr] 359 | |     {
[INFO] [stderr] ...   |
[INFO] [stderr] 364 | |         }
[INFO] [stderr] 365 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `value`
[INFO] [stderr]    --> src/optimap.rs:252:5
[INFO] [stderr]     |
[INFO] [stderr] 252 |     fn value(self) -> V {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.78s
[INFO] running `"docker" "inspect" "54e8db552fe1af003cd25af98caf6dc793a931c4a764cc5dcc4a56d51225288d"`
[INFO] running `"docker" "rm" "-f" "54e8db552fe1af003cd25af98caf6dc793a931c4a764cc5dcc4a56d51225288d"`
[INFO] [stdout] 54e8db552fe1af003cd25af98caf6dc793a931c4a764cc5dcc4a56d51225288d