Dec 17 16:15:55.061 INFO checking s3rvac/yabir against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 16:15:55.061 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/s3rvac/yabir:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 16:15:55.552 INFO [stdout] 18c6cf856971af4111076106f7a9d5302417b60aaf519ab560ca358406802a1e
Dec 17 16:15:55.557 INFO running `"docker" "start" "-a" "18c6cf856971af4111076106f7a9d5302417b60aaf519ab560ca358406802a1e"`
Dec 17 16:15:57.192 INFO [stderr]     Checking yabir v0.1.0 (/opt/crater/workdir)
Dec 17 16:15:57.782 INFO [stderr] warning: variable does not need to be mutable
Dec 17 16:15:57.782 INFO [stderr]    --> src/runner.rs:112:30
Dec 17 16:15:57.782 INFO [stderr]     |
Dec 17 16:15:57.782 INFO [stderr] 112 |     fn read_value(&mut self, mut input: &mut std::io::Read) -> Result<(), String> {
Dec 17 16:15:57.782 INFO [stderr]     |                              ----^^^^^
Dec 17 16:15:57.782 INFO [stderr]     |                              |
Dec 17 16:15:57.782 INFO [stderr]     |                              help: remove this `mut`
Dec 17 16:15:57.782 INFO [stderr]     |
Dec 17 16:15:57.782 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 16:15:57.782 INFO [stderr] 
Dec 17 16:15:57.784 INFO [stderr] warning: variable does not need to be mutable
Dec 17 16:15:57.784 INFO [stderr]    --> src/runner.rs:136:31
Dec 17 16:15:57.784 INFO [stderr]     |
Dec 17 16:15:57.784 INFO [stderr] 136 |     fn write_value(&mut self, mut output: &mut std::io::Write) -> Result<(), String> {
Dec 17 16:15:57.784 INFO [stderr]     |                               ----^^^^^^
Dec 17 16:15:57.784 INFO [stderr]     |                               |
Dec 17 16:15:57.784 INFO [stderr]     |                               help: remove this `mut`
Dec 17 16:15:57.784 INFO [stderr] 
Dec 17 16:15:57.973 INFO [stderr] warning: variable does not need to be mutable
Dec 17 16:15:57.973 INFO [stderr]    --> src/runner.rs:112:30
Dec 17 16:15:57.973 INFO [stderr]     |
Dec 17 16:15:57.973 INFO [stderr] 112 |     fn read_value(&mut self, mut input: &mut std::io::Read) -> Result<(), String> {
Dec 17 16:15:57.973 INFO [stderr]     |                              ----^^^^^
Dec 17 16:15:57.974 INFO [stderr]     |                              |
Dec 17 16:15:57.974 INFO [stderr]     |                              help: remove this `mut`
Dec 17 16:15:57.974 INFO [stderr]     |
Dec 17 16:15:57.974 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 16:15:57.974 INFO [stderr] 
Dec 17 16:15:57.976 INFO [stderr] warning: variable does not need to be mutable
Dec 17 16:15:57.976 INFO [stderr]    --> src/runner.rs:136:31
Dec 17 16:15:57.976 INFO [stderr]     |
Dec 17 16:15:57.976 INFO [stderr] 136 |     fn write_value(&mut self, mut output: &mut std::io::Write) -> Result<(), String> {
Dec 17 16:15:57.976 INFO [stderr]     |                               ----^^^^^^
Dec 17 16:15:57.976 INFO [stderr]     |                               |
Dec 17 16:15:57.976 INFO [stderr]     |                               help: remove this `mut`
Dec 17 16:15:57.976 INFO [stderr] 
Dec 17 16:15:58.044 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
Dec 17 16:15:59.108 INFO running `"docker" "inspect" "18c6cf856971af4111076106f7a9d5302417b60aaf519ab560ca358406802a1e"`
Dec 17 16:15:59.358 INFO running `"docker" "rm" "-f" "18c6cf856971af4111076106f7a9d5302417b60aaf519ab560ca358406802a1e"`
Dec 17 16:15:59.676 INFO [stdout] 18c6cf856971af4111076106f7a9d5302417b60aaf519ab560ca358406802a1e