Dec 05 04:44:09.875 INFO checking variable_size_byte_writer-0.1.5 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 04:44:09.875 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 04:44:10.187 INFO [stdout] 3c15f869416bdfa8c916ef6ece074b5357af3c491b3bc9d3d4dd4e5cdd10ee3d
Dec 05 04:44:10.187 INFO running `"docker" "start" "-a" "3c15f869416bdfa8c916ef6ece074b5357af3c491b3bc9d3d4dd4e5cdd10ee3d"`
Dec 05 04:44:11.034 INFO [stderr] usermod: no changes
Dec 05 04:44:11.157 INFO [stderr]     Checking typenum_loops v0.2.0
Dec 05 04:44:11.723 INFO [stderr]     Checking variable_size_byte_writer v0.1.5 (/source)
Dec 05 04:44:12.911 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:44:12.911 INFO [stderr]   --> benches/benches.rs:11:9
Dec 05 04:44:12.911 INFO [stderr]    |
Dec 05 04:44:12.911 INFO [stderr] 11 |     let mut target = std::io::Cursor::new(vec![]);
Dec 05 04:44:12.911 INFO [stderr]    |         ----^^^^^^
Dec 05 04:44:12.911 INFO [stderr]    |         |
Dec 05 04:44:12.911 INFO [stderr]    |         help: remove this `mut`
Dec 05 04:44:12.911 INFO [stderr]    |
Dec 05 04:44:12.911 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 04:44:12.911 INFO [stderr] 
Dec 05 04:44:12.918 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:44:12.918 INFO [stderr]   --> benches/benches.rs:32:9
Dec 05 04:44:12.918 INFO [stderr]    |
Dec 05 04:44:12.918 INFO [stderr] 32 |     let mut target = std::io::Cursor::new(vec![]);
Dec 05 04:44:12.918 INFO [stderr]    |         ----^^^^^^
Dec 05 04:44:12.918 INFO [stderr]    |         |
Dec 05 04:44:12.918 INFO [stderr]    |         help: remove this `mut`
Dec 05 04:44:12.918 INFO [stderr] 
Dec 05 04:44:12.918 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:44:12.918 INFO [stderr]   --> benches/benches.rs:53:9
Dec 05 04:44:12.918 INFO [stderr]    |
Dec 05 04:44:12.918 INFO [stderr] 53 |     let mut target = std::io::Cursor::new(vec![]);
Dec 05 04:44:12.918 INFO [stderr]    |         ----^^^^^^
Dec 05 04:44:12.918 INFO [stderr]    |         |
Dec 05 04:44:12.918 INFO [stderr]    |         help: remove this `mut`
Dec 05 04:44:12.918 INFO [stderr] 
Dec 05 04:44:12.967 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.90s
Dec 05 04:44:12.970 INFO [stderr] su: No module specific data is present
Dec 05 04:44:13.787 INFO running `"docker" "inspect" "3c15f869416bdfa8c916ef6ece074b5357af3c491b3bc9d3d4dd4e5cdd10ee3d"`
Dec 05 04:44:14.073 INFO running `"docker" "rm" "-f" "3c15f869416bdfa8c916ef6ece074b5357af3c491b3bc9d3d4dd4e5cdd10ee3d"`
Dec 05 04:44:14.371 INFO [stdout] 3c15f869416bdfa8c916ef6ece074b5357af3c491b3bc9d3d4dd4e5cdd10ee3d