Dec 18 13:50:26.964 INFO checking msgp-abi-0.1.1 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 13:50:26.965 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/msgp-abi/0.1.1:/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 18 13:50:27.228 INFO [stdout] b2b0a31a18eec5017c43accf14770a5e3af3988f0fba8d7f186bc4a7e1cbe983
Dec 18 13:50:27.232 INFO running `"docker" "start" "-a" "b2b0a31a18eec5017c43accf14770a5e3af3988f0fba8d7f186bc4a7e1cbe983"`
Dec 18 13:50:28.080 INFO [stderr]     Checking msgp v0.1.1
Dec 18 13:50:28.444 INFO [stderr]     Checking msgp-abi v0.1.1 (/opt/crater/workdir)
Dec 18 13:50:28.752 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:50:28.752 INFO [stderr]   --> src/lib.rs:68:9
Dec 18 13:50:28.752 INFO [stderr]    |
Dec 18 13:50:28.752 INFO [stderr] 68 |     let mut decoder = unsafe { &mut *ptr };
Dec 18 13:50:28.752 INFO [stderr]    |         ----^^^^^^^
Dec 18 13:50:28.752 INFO [stderr]    |         |
Dec 18 13:50:28.753 INFO [stderr]    |         help: remove this `mut`
Dec 18 13:50:28.753 INFO [stderr]    |
Dec 18 13:50:28.753 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 13:50:28.753 INFO [stderr] 
Dec 18 13:50:28.753 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:50:28.753 INFO [stderr]   --> src/lib.rs:81:9
Dec 18 13:50:28.753 INFO [stderr]    |
Dec 18 13:50:28.753 INFO [stderr] 81 |     let mut decoder = unsafe { &mut *ptr };
Dec 18 13:50:28.753 INFO [stderr]    |         ----^^^^^^^
Dec 18 13:50:28.753 INFO [stderr]    |         |
Dec 18 13:50:28.753 INFO [stderr]    |         help: remove this `mut`
Dec 18 13:50:28.753 INFO [stderr] 
Dec 18 13:50:28.956 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:50:28.956 INFO [stderr]   --> src/lib.rs:68:9
Dec 18 13:50:28.956 INFO [stderr]    |
Dec 18 13:50:28.956 INFO [stderr] 68 |     let mut decoder = unsafe { &mut *ptr };
Dec 18 13:50:28.956 INFO [stderr]    |         ----^^^^^^^
Dec 18 13:50:28.956 INFO [stderr]    |         |
Dec 18 13:50:28.956 INFO [stderr]    |         help: remove this `mut`
Dec 18 13:50:28.956 INFO [stderr]    |
Dec 18 13:50:28.956 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 13:50:28.956 INFO [stderr] 
Dec 18 13:50:28.956 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:50:28.956 INFO [stderr]   --> src/lib.rs:81:9
Dec 18 13:50:28.956 INFO [stderr]    |
Dec 18 13:50:28.956 INFO [stderr] 81 |     let mut decoder = unsafe { &mut *ptr };
Dec 18 13:50:28.956 INFO [stderr]    |         ----^^^^^^^
Dec 18 13:50:28.956 INFO [stderr]    |         |
Dec 18 13:50:28.956 INFO [stderr]    |         help: remove this `mut`
Dec 18 13:50:28.956 INFO [stderr] 
Dec 18 13:50:29.001 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
Dec 18 13:50:29.640 INFO running `"docker" "inspect" "b2b0a31a18eec5017c43accf14770a5e3af3988f0fba8d7f186bc4a7e1cbe983"`
Dec 18 13:50:30.004 INFO running `"docker" "rm" "-f" "b2b0a31a18eec5017c43accf14770a5e3af3988f0fba8d7f186bc4a7e1cbe983"`
Dec 18 13:50:30.375 INFO [stdout] b2b0a31a18eec5017c43accf14770a5e3af3988f0fba8d7f186bc4a7e1cbe983