Dec 05 09:14:25.703 INFO checking pem-iterator-0.2.0 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 09:14:25.703 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 09:14:26.247 INFO [stdout] af8e1cdd724cf81505bb84470e23ccffe9266279e733dac8218ebe6fb774c387
Dec 05 09:14:26.249 INFO running `"docker" "start" "-a" "af8e1cdd724cf81505bb84470e23ccffe9266279e733dac8218ebe6fb774c387"`
Dec 05 09:14:27.335 INFO [stderr] usermod: no changes
Dec 05 09:14:27.479 INFO [stderr]     Checking pem-iterator v0.2.0 (/source)
Dec 05 09:14:27.511 INFO [stderr]     Checking pem v0.4.1
Dec 05 09:14:35.051 INFO [stderr] warning: variable does not need to be mutable
Dec 05 09:14:35.051 INFO [stderr]    --> benches/bench.rs:201:9
Dec 05 09:14:35.051 INFO [stderr]     |
Dec 05 09:14:35.051 INFO [stderr] 201 |     let mut label_buf = String::new();
Dec 05 09:14:35.051 INFO [stderr]     |         ----^^^^^^^^^
Dec 05 09:14:35.051 INFO [stderr]     |         |
Dec 05 09:14:35.051 INFO [stderr]     |         help: remove this `mut`
Dec 05 09:14:35.051 INFO [stderr]     |
Dec 05 09:14:35.051 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 09:14:35.051 INFO [stderr] 
Dec 05 09:14:35.051 INFO [stderr] warning: variable does not need to be mutable
Dec 05 09:14:35.051 INFO [stderr]    --> benches/bench.rs:242:9
Dec 05 09:14:35.051 INFO [stderr]     |
Dec 05 09:14:35.051 INFO [stderr] 242 |     let mut label_buf = String::new();
Dec 05 09:14:35.051 INFO [stderr]     |         ----^^^^^^^^^
Dec 05 09:14:35.051 INFO [stderr]     |         |
Dec 05 09:14:35.051 INFO [stderr]     |         help: remove this `mut`
Dec 05 09:14:35.051 INFO [stderr] 
Dec 05 09:14:35.051 INFO [stderr] warning: variable does not need to be mutable
Dec 05 09:14:35.051 INFO [stderr]    --> benches/bench.rs:285:9
Dec 05 09:14:35.051 INFO [stderr]     |
Dec 05 09:14:35.051 INFO [stderr] 285 |     let mut label_buf = String::new();
Dec 05 09:14:35.051 INFO [stderr]     |         ----^^^^^^^^^
Dec 05 09:14:35.051 INFO [stderr]     |         |
Dec 05 09:14:35.051 INFO [stderr]     |         help: remove this `mut`
Dec 05 09:14:35.051 INFO [stderr] 
Dec 05 09:14:35.051 INFO [stderr] warning: variable does not need to be mutable
Dec 05 09:14:35.051 INFO [stderr]    --> benches/bench.rs:326:9
Dec 05 09:14:35.051 INFO [stderr]     |
Dec 05 09:14:35.051 INFO [stderr] 326 |     let mut label_buf = String::new();
Dec 05 09:14:35.051 INFO [stderr]     |         ----^^^^^^^^^
Dec 05 09:14:35.051 INFO [stderr]     |         |
Dec 05 09:14:35.051 INFO [stderr]     |         help: remove this `mut`
Dec 05 09:14:35.051 INFO [stderr] 
Dec 05 09:14:35.115 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.75s
Dec 05 09:14:35.124 INFO [stderr] su: No module specific data is present
Dec 05 09:14:36.129 INFO running `"docker" "inspect" "af8e1cdd724cf81505bb84470e23ccffe9266279e733dac8218ebe6fb774c387"`
Dec 05 09:14:36.533 INFO running `"docker" "rm" "-f" "af8e1cdd724cf81505bb84470e23ccffe9266279e733dac8218ebe6fb774c387"`
Dec 05 09:14:36.851 INFO [stdout] af8e1cdd724cf81505bb84470e23ccffe9266279e733dac8218ebe6fb774c387