Dec 17 13:05:56.082 INFO checking ttakamura/binary-nn-rust against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 13:05:56.083 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/ttakamura/binary-nn-rust:/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 13:05:56.749 INFO [stdout] 10cc54df1e70a8daa4c9d3535c7fbf0e1c7c5c473acec7e82c06886f49a658c3
Dec 17 13:05:56.751 INFO running `"docker" "start" "-a" "10cc54df1e70a8daa4c9d3535c7fbf0e1c7c5c473acec7e82c06886f49a658c3"`
Dec 17 13:05:58.424 INFO [stderr]     Checking serde v0.9.12
Dec 17 13:05:58.430 INFO [stderr]    Compiling syn v0.11.9
Dec 17 13:06:06.337 INFO [stderr]    Compiling serde_codegen_internals v0.14.2
Dec 17 13:06:09.232 INFO [stderr]    Compiling serde_derive v0.9.12
Dec 17 13:06:12.296 INFO [stderr]     Checking bincode v1.0.0-alpha6
Dec 17 13:06:16.148 INFO [stderr]     Checking binary_nn v0.1.0 (/opt/crater/workdir)
Dec 17 13:06:18.849 INFO [stderr] warning: variable does not need to be mutable
Dec 17 13:06:18.849 INFO [stderr]   --> tests/bitmatrix_test.rs:40:9
Dec 17 13:06:18.849 INFO [stderr]    |
Dec 17 13:06:18.849 INFO [stderr] 40 |     let mut x = BitMatrix2::falses((3, 34));
Dec 17 13:06:18.850 INFO [stderr]    |         ----^
Dec 17 13:06:18.850 INFO [stderr]    |         |
Dec 17 13:06:18.850 INFO [stderr]    |         help: remove this `mut`
Dec 17 13:06:18.850 INFO [stderr]    |
Dec 17 13:06:18.850 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 13:06:18.850 INFO [stderr] 
Dec 17 13:06:18.850 INFO [stderr] warning: variable does not need to be mutable
Dec 17 13:06:18.850 INFO [stderr]   --> tests/bitmatrix_test.rs:41:9
Dec 17 13:06:18.850 INFO [stderr]    |
Dec 17 13:06:18.850 INFO [stderr] 41 |     let mut y = BitMatrix2::falses((34, 2));
Dec 17 13:06:18.850 INFO [stderr]    |         ----^
Dec 17 13:06:18.850 INFO [stderr]    |         |
Dec 17 13:06:18.850 INFO [stderr]    |         help: remove this `mut`
Dec 17 13:06:18.850 INFO [stderr] 
Dec 17 13:06:19.092 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.78s
Dec 17 13:06:20.116 INFO running `"docker" "inspect" "10cc54df1e70a8daa4c9d3535c7fbf0e1c7c5c473acec7e82c06886f49a658c3"`
Dec 17 13:06:20.342 INFO running `"docker" "rm" "-f" "10cc54df1e70a8daa4c9d3535c7fbf0e1c7c5c473acec7e82c06886f49a658c3"`
Dec 17 13:06:20.716 INFO [stdout] 10cc54df1e70a8daa4c9d3535c7fbf0e1c7c5c473acec7e82c06886f49a658c3