[INFO] fetching crate logmap 0.1.0...
[INFO] checking logmap-0.1.0 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate logmap 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate logmap 0.1.0 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate logmap 0.1.0
[INFO] finished tweaking crates.io crate logmap 0.1.0
[INFO] tweaked toml for crates.io crate logmap 0.1.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] 8a25a4815f279a0986ff7cd4d8ce48ede3229fa5623abfa5283aa441e692416a
[INFO] running `"docker" "start" "-a" "8a25a4815f279a0986ff7cd4d8ce48ede3229fa5623abfa5283aa441e692416a"`
[INFO] [stderr]     Checking logmap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `scan`
[INFO] [stderr]   --> src/lib.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 | /     fn scan<F>(&self, f: F) -> RwLockReadGuard<Bucket<K, V>>
[INFO] [stderr] 43 | |         where
[INFO] [stderr] 44 | |         F: Fn(&Bucket<K, V>) -> bool,
[INFO] [stderr] 45 | |     {
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |         self.bucket[start].read().unwrap()
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update`
[INFO] [stderr]    --> src/lib.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     fn update(&self, key: K, value: V) -> Option<V> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_free`
[INFO] [stderr]    --> src/lib.rs:132:5
[INFO] [stderr]     |
[INFO] [stderr] 132 |     fn is_free(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `key`
[INFO] [stderr]    --> src/lib.rs:147:5
[INFO] [stderr]     |
[INFO] [stderr] 147 |     fn key(&self) -> Option<&K> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `key_matches`
[INFO] [stderr]    --> src/lib.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 | /     fn key_matches(&self, key: &K) -> bool
[INFO] [stderr] 164 | |         where
[INFO] [stderr] 165 | |         K: PartialEq,
[INFO] [stderr] 166 | |     {
[INFO] [stderr] ...   |
[INFO] [stderr] 171 | |         }
[INFO] [stderr] 172 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `scan`
[INFO] [stderr]    --> src/lib.rs:203:5
[INFO] [stderr]     |
[INFO] [stderr] 203 | /     fn scan<F>(&self, key: &K, matches: F) -> RwLockReadGuard<Bucket<K, V>>
[INFO] [stderr] 204 | |         where
[INFO] [stderr] 205 | |         F: Fn(&Bucket<K, V>) -> bool,
[INFO] [stderr] 206 | |     {
[INFO] [stderr] 207 | |         self.buckets[self.hash(key)].scan(matches)
[INFO] [stderr] 208 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:515:33
[INFO] [stderr]     |
[INFO] [stderr] 515 | ...                   let mut start;
[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/lib.rs:505:21
[INFO] [stderr]     |
[INFO] [stderr] 505 |                 let mut filename = File::create(format!("{}.csv", idx).to_string()).unwrap();
[INFO] [stderr]     |                     ----^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `scan`
[INFO] [stderr]   --> src/lib.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 | /     fn scan<F>(&self, f: F) -> RwLockReadGuard<Bucket<K, V>>
[INFO] [stderr] 43 | |         where
[INFO] [stderr] 44 | |         F: Fn(&Bucket<K, V>) -> bool,
[INFO] [stderr] 45 | |     {
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |         self.bucket[start].read().unwrap()
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_free`
[INFO] [stderr]    --> src/lib.rs:132:5
[INFO] [stderr]     |
[INFO] [stderr] 132 |     fn is_free(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `key`
[INFO] [stderr]    --> src/lib.rs:147:5
[INFO] [stderr]     |
[INFO] [stderr] 147 |     fn key(&self) -> Option<&K> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `key_matches`
[INFO] [stderr]    --> src/lib.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 | /     fn key_matches(&self, key: &K) -> bool
[INFO] [stderr] 164 | |         where
[INFO] [stderr] 165 | |         K: PartialEq,
[INFO] [stderr] 166 | |     {
[INFO] [stderr] ...   |
[INFO] [stderr] 171 | |         }
[INFO] [stderr] 172 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `scan`
[INFO] [stderr]    --> src/lib.rs:203:5
[INFO] [stderr]     |
[INFO] [stderr] 203 | /     fn scan<F>(&self, key: &K, matches: F) -> RwLockReadGuard<Bucket<K, V>>
[INFO] [stderr] 204 | |         where
[INFO] [stderr] 205 | |         F: Fn(&Bucket<K, V>) -> bool,
[INFO] [stderr] 206 | |     {
[INFO] [stderr] 207 | |         self.buckets[self.hash(key)].scan(matches)
[INFO] [stderr] 208 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `"docker" "inspect" "8a25a4815f279a0986ff7cd4d8ce48ede3229fa5623abfa5283aa441e692416a"`
[INFO] running `"docker" "rm" "-f" "8a25a4815f279a0986ff7cd4d8ce48ede3229fa5623abfa5283aa441e692416a"`
[INFO] [stdout] 8a25a4815f279a0986ff7cd4d8ce48ede3229fa5623abfa5283aa441e692416a