[INFO] updating cached repository https://github.com/dhatch/cache-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 244b5258f6389f1b17755dbbb99de8c07c5c24b5
[INFO] checking dhatch/cache-rust against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhatch%2Fcache-rust" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dhatch/cache-rust on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/dhatch/cache-rust
[INFO] removed workspace from git repo https://github.com/dhatch/cache-rust
[INFO] finished tweaking git repo https://github.com/dhatch/cache-rust
[INFO] tweaked toml for git repo https://github.com/dhatch/cache-rust written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/dhatch/cache-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] aa2796a41f0c5d15499202d1360d4a4d4ad87500bcbc98bfebc52dede3a604fd
[INFO] running `"docker" "start" "-a" "aa2796a41f0c5d15499202d1360d4a4d4ad87500bcbc98bfebc52dede3a604fd"`
[INFO] [stderr]     Checking cache v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/cache.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/cache.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | intrusive_adapter!(CacheValueAdapter<K, V> = Arc<CacheValue<K, V>>: CacheValue<K, V> { link: LinkedListLink });
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/cache.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/cache.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | intrusive_adapter!(CacheValueAdapter<K, V> = Arc<CacheValue<K, V>>: CacheValue<K, V> { link: LinkedListLink });
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k2`
[INFO] [stderr]    --> src/cache.rs:246:13
[INFO] [stderr]     |
[INFO] [stderr] 246 |         let k2 = "key2";
[INFO] [stderr]     |             ^^ help: consider prefixing with an underscore: `_k2`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cache.rs:220:13
[INFO] [stderr]     |
[INFO] [stderr] 220 |         let mut cache: LRUCache<&str, u64> = LRUCache::new(10);
[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 `cacheA` should have a snake case name
[INFO] [stderr]   --> benches/bench_main.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let cacheA = Arc::clone(&cache);
[INFO] [stderr]    |             ^^^^^^ help: convert the identifier to snake case: `cache_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `cacheB` should have a snake case name
[INFO] [stderr]   --> benches/bench_main.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let cacheB = Arc::clone(&cache);
[INFO] [stderr]    |             ^^^^^^ help: convert the identifier to snake case: `cache_b`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.67s
[INFO] running `"docker" "inspect" "aa2796a41f0c5d15499202d1360d4a4d4ad87500bcbc98bfebc52dede3a604fd"`
[INFO] running `"docker" "rm" "-f" "aa2796a41f0c5d15499202d1360d4a4d4ad87500bcbc98bfebc52dede3a604fd"`
[INFO] [stdout] aa2796a41f0c5d15499202d1360d4a4d4ad87500bcbc98bfebc52dede3a604fd