Dec 18 15:13:37.791 INFO checking hdlc-0.2.4 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 15:13:37.791 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/hdlc/0.2.4:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 15:13:37.987 INFO [stdout] 01d993a27c0e4809a2987b132507e27a3ff5d7ebe57c7255c3d29a94f2f140a6
Dec 18 15:13:37.990 INFO running `"docker" "start" "-a" "01d993a27c0e4809a2987b132507e27a3ff5d7ebe57c7255c3d29a94f2f140a6"`
Dec 18 15:13:38.792 INFO [stderr]     Checking hdlc v0.2.4 (/opt/crater/workdir)
Dec 18 15:13:39.688 INFO [stderr] warning: unused import: `decode_slice`
Dec 18 15:13:39.688 INFO [stderr]  --> benches/bench.rs:5:20
Dec 18 15:13:39.688 INFO [stderr]   |
Dec 18 15:13:39.688 INFO [stderr] 5 | use hdlc::{decode, decode_slice, encode, SpecialChars};
Dec 18 15:13:39.688 INFO [stderr]   |                    ^^^^^^^^^^^^
Dec 18 15:13:39.688 INFO [stderr]   |
Dec 18 15:13:39.688 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 15:13:39.688 INFO [stderr] 
Dec 18 15:13:39.762 INFO [stderr] warning: struct is never constructed: `MyBox`
Dec 18 15:13:39.762 INFO [stderr]   --> benches/bench.rs:10:1
Dec 18 15:13:39.762 INFO [stderr]    |
Dec 18 15:13:39.762 INFO [stderr] 10 | struct MyBox<'a, T: 'a>(&'a mut T);
Dec 18 15:13:39.762 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:13:39.762 INFO [stderr]    |
Dec 18 15:13:39.762 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 15:13:39.762 INFO [stderr] 
Dec 18 15:13:39.762 INFO [stderr] warning: method is never used: `new`
Dec 18 15:13:39.762 INFO [stderr]   --> benches/bench.rs:38:5
Dec 18 15:13:39.762 INFO [stderr]    |
Dec 18 15:13:39.762 INFO [stderr] 38 |     fn new(x: &'a mut T) -> MyBox<'a, T> {
Dec 18 15:13:39.762 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:13:39.762 INFO [stderr] 
Dec 18 15:13:39.877 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
Dec 18 15:13:40.215 INFO running `"docker" "inspect" "01d993a27c0e4809a2987b132507e27a3ff5d7ebe57c7255c3d29a94f2f140a6"`
Dec 18 15:13:40.332 INFO running `"docker" "rm" "-f" "01d993a27c0e4809a2987b132507e27a3ff5d7ebe57c7255c3d29a94f2f140a6"`
Dec 18 15:13:40.541 INFO [stdout] 01d993a27c0e4809a2987b132507e27a3ff5d7ebe57c7255c3d29a94f2f140a6