Dec 04 06:39:18.352 INFO checking yatendernitk/rust-codes against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 06:39:18.352 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 04 06:39:18.744 INFO [stdout] a64121d5924952b53eacf67951d8170bc0ccb1f74a8ddb2346576c978f3fd671
Dec 04 06:39:18.746 INFO running `"docker" "start" "-a" "a64121d5924952b53eacf67951d8170bc0ccb1f74a8ddb2346576c978f3fd671"`
Dec 04 06:39:20.062 INFO [stderr] usermod: no changes
Dec 04 06:39:20.191 INFO [stderr]     Checking libc v0.2.32
Dec 04 06:39:21.271 INFO [stderr]     Checking rand v0.3.17
Dec 04 06:39:22.611 INFO [stderr]     Checking hello v0.0.1 (/source)
Dec 04 06:39:22.811 INFO [stderr] warning: variable does not need to be mutable
Dec 04 06:39:22.811 INFO [stderr]   --> src/main.rs:46:9
Dec 04 06:39:22.811 INFO [stderr]    |
Dec 04 06:39:22.811 INFO [stderr] 46 |     let mut guess: u32 = match guess.trim().parse() {
Dec 04 06:39:22.811 INFO [stderr]    |         ----^^^^^
Dec 04 06:39:22.811 INFO [stderr]    |         |
Dec 04 06:39:22.811 INFO [stderr]    |         help: remove this `mut`
Dec 04 06:39:22.811 INFO [stderr]    |
Dec 04 06:39:22.811 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 06:39:22.811 INFO [stderr] 
Dec 04 06:39:22.811 INFO [stderr] warning: function is never used: `guessing`
Dec 04 06:39:22.811 INFO [stderr]   --> src/main.rs:34:1
Dec 04 06:39:22.811 INFO [stderr]    |
Dec 04 06:39:22.811 INFO [stderr] 34 | fn guessing() {
Dec 04 06:39:22.811 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 04 06:39:22.811 INFO [stderr]    |
Dec 04 06:39:22.823 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 06:39:22.823 INFO [stderr] 
Dec 04 06:39:22.871 INFO [stderr] warning: variable does not need to be mutable
Dec 04 06:39:22.871 INFO [stderr]   --> src/main.rs:46:9
Dec 04 06:39:22.871 INFO [stderr]    |
Dec 04 06:39:22.871 INFO [stderr] 46 |     let mut guess: u32 = match guess.trim().parse() {
Dec 04 06:39:22.871 INFO [stderr]    |         ----^^^^^
Dec 04 06:39:22.871 INFO [stderr]    |         |
Dec 04 06:39:22.871 INFO [stderr]    |         help: remove this `mut`
Dec 04 06:39:22.871 INFO [stderr]    |
Dec 04 06:39:22.871 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 06:39:22.871 INFO [stderr] 
Dec 04 06:39:22.871 INFO [stderr] warning: function is never used: `guessing`
Dec 04 06:39:22.871 INFO [stderr]   --> src/main.rs:34:1
Dec 04 06:39:22.871 INFO [stderr]    |
Dec 04 06:39:22.871 INFO [stderr] 34 | fn guessing() {
Dec 04 06:39:22.871 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 04 06:39:22.871 INFO [stderr]    |
Dec 04 06:39:22.871 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 06:39:22.871 INFO [stderr] 
Dec 04 06:39:22.910 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.80s
Dec 04 06:39:22.915 INFO [stderr] su: No module specific data is present
Dec 04 06:39:24.043 INFO running `"docker" "inspect" "a64121d5924952b53eacf67951d8170bc0ccb1f74a8ddb2346576c978f3fd671"`
Dec 04 06:39:24.385 INFO running `"docker" "rm" "-f" "a64121d5924952b53eacf67951d8170bc0ccb1f74a8ddb2346576c978f3fd671"`
Dec 04 06:39:24.679 INFO [stdout] a64121d5924952b53eacf67951d8170bc0ccb1f74a8ddb2346576c978f3fd671