Nov 28 00:33:30.981 INFO checking miyamofigo/lzw against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 00:33:30.981 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 00:33:31.246 INFO [stdout] dce684a09c549ba61157b2675f1753674c25dceffeb2dd23ffbf25a5bf909387
Nov 28 00:33:31.250 INFO running `"docker" "start" "-a" "dce684a09c549ba61157b2675f1753674c25dceffeb2dd23ffbf25a5bf909387"`
Nov 28 00:33:31.955 INFO [stderr] usermod: no changes
Nov 28 00:33:31.986 INFO [stderr]     Checking lzw v0.1.0 (/source)
Nov 28 00:33:32.240 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:33:32.240 INFO [stderr]    --> src/main.rs:115:9
Nov 28 00:33:32.240 INFO [stderr]     |
Nov 28 00:33:32.240 INFO [stderr] 115 |     let mut comp = compress("hello world");
Nov 28 00:33:32.240 INFO [stderr]     |         ----^^^^
Nov 28 00:33:32.240 INFO [stderr]     |         |
Nov 28 00:33:32.240 INFO [stderr]     |         help: remove this `mut`
Nov 28 00:33:32.240 INFO [stderr]     |
Nov 28 00:33:32.240 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 00:33:32.240 INFO [stderr] 
Nov 28 00:33:32.240 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:33:32.240 INFO [stderr]    --> src/main.rs:119:9
Nov 28 00:33:32.240 INFO [stderr]     |
Nov 28 00:33:32.240 INFO [stderr] 119 |     let mut comp2 = compress("hello worldhello world");
Nov 28 00:33:32.240 INFO [stderr]     |         ----^^^^^
Nov 28 00:33:32.240 INFO [stderr]     |         |
Nov 28 00:33:32.241 INFO [stderr]     |         help: remove this `mut`
Nov 28 00:33:32.241 INFO [stderr] 
Nov 28 00:33:32.312 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:33:32.312 INFO [stderr]    --> src/main.rs:115:9
Nov 28 00:33:32.312 INFO [stderr]     |
Nov 28 00:33:32.312 INFO [stderr] 115 |     let mut comp = compress("hello world");
Nov 28 00:33:32.312 INFO [stderr]     |         ----^^^^
Nov 28 00:33:32.312 INFO [stderr]     |         |
Nov 28 00:33:32.312 INFO [stderr]     |         help: remove this `mut`
Nov 28 00:33:32.312 INFO [stderr]     |
Nov 28 00:33:32.312 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 00:33:32.312 INFO [stderr] 
Nov 28 00:33:32.312 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:33:32.312 INFO [stderr]    --> src/main.rs:119:9
Nov 28 00:33:32.312 INFO [stderr]     |
Nov 28 00:33:32.312 INFO [stderr] 119 |     let mut comp2 = compress("hello worldhello world");
Nov 28 00:33:32.312 INFO [stderr]     |         ----^^^^^
Nov 28 00:33:32.312 INFO [stderr]     |         |
Nov 28 00:33:32.312 INFO [stderr]     |         help: remove this `mut`
Nov 28 00:33:32.312 INFO [stderr] 
Nov 28 00:33:32.330 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
Nov 28 00:33:32.333 INFO [stderr] su: No module specific data is present
Nov 28 00:33:32.831 INFO running `"docker" "inspect" "dce684a09c549ba61157b2675f1753674c25dceffeb2dd23ffbf25a5bf909387"`
Nov 28 00:33:33.096 INFO running `"docker" "rm" "-f" "dce684a09c549ba61157b2675f1753674c25dceffeb2dd23ffbf25a5bf909387"`
Nov 28 00:33:33.504 INFO [stdout] dce684a09c549ba61157b2675f1753674c25dceffeb2dd23ffbf25a5bf909387