Dec 11 05:43:25.386 INFO checking yatendernitk/rust-codes against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 05:43:25.386 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 11 05:43:25.860 INFO [stdout] e3cdcdcfe6613a495a9db07b421d3586cf2bba1159261e7f483f7cecb552ede8
Dec 11 05:43:25.868 INFO running `"docker" "start" "-a" "e3cdcdcfe6613a495a9db07b421d3586cf2bba1159261e7f483f7cecb552ede8"`
Dec 11 05:43:27.508 INFO [stderr] usermod: no changes
Dec 11 05:43:27.624 INFO [stderr]     Checking libc v0.2.32
Dec 11 05:43:28.768 INFO [stderr]     Checking rand v0.3.17
Dec 11 05:43:30.088 INFO [stderr]     Checking hello v0.0.1 (/source)
Dec 11 05:43:30.284 INFO [stderr] warning: variable does not need to be mutable
Dec 11 05:43:30.284 INFO [stderr]   --> src/main.rs:46:9
Dec 11 05:43:30.284 INFO [stderr]    |
Dec 11 05:43:30.284 INFO [stderr] 46 |     let mut guess: u32 = match guess.trim().parse() {
Dec 11 05:43:30.284 INFO [stderr]    |         ----^^^^^
Dec 11 05:43:30.284 INFO [stderr]    |         |
Dec 11 05:43:30.284 INFO [stderr]    |         help: remove this `mut`
Dec 11 05:43:30.284 INFO [stderr]    |
Dec 11 05:43:30.284 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 05:43:30.284 INFO [stderr] 
Dec 11 05:43:30.284 INFO [stderr] warning: function is never used: `guessing`
Dec 11 05:43:30.284 INFO [stderr]   --> src/main.rs:34:1
Dec 11 05:43:30.284 INFO [stderr]    |
Dec 11 05:43:30.284 INFO [stderr] 34 | fn guessing() {
Dec 11 05:43:30.284 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 11 05:43:30.284 INFO [stderr]    |
Dec 11 05:43:30.284 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 05:43:30.284 INFO [stderr] 
Dec 11 05:43:30.384 INFO [stderr] warning: variable does not need to be mutable
Dec 11 05:43:30.384 INFO [stderr]   --> src/main.rs:46:9
Dec 11 05:43:30.384 INFO [stderr]    |
Dec 11 05:43:30.384 INFO [stderr] 46 |     let mut guess: u32 = match guess.trim().parse() {
Dec 11 05:43:30.384 INFO [stderr]    |         ----^^^^^
Dec 11 05:43:30.384 INFO [stderr]    |         |
Dec 11 05:43:30.384 INFO [stderr]    |         help: remove this `mut`
Dec 11 05:43:30.384 INFO [stderr]    |
Dec 11 05:43:30.384 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 05:43:30.384 INFO [stderr] 
Dec 11 05:43:30.384 INFO [stderr] warning: function is never used: `guessing`
Dec 11 05:43:30.384 INFO [stderr]   --> src/main.rs:34:1
Dec 11 05:43:30.384 INFO [stderr]    |
Dec 11 05:43:30.384 INFO [stderr] 34 | fn guessing() {
Dec 11 05:43:30.384 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 11 05:43:30.384 INFO [stderr]    |
Dec 11 05:43:30.384 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 05:43:30.384 INFO [stderr] 
Dec 11 05:43:30.404 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.87s
Dec 11 05:43:30.412 INFO [stderr] su: No module specific data is present
Dec 11 05:43:31.410 INFO running `"docker" "inspect" "e3cdcdcfe6613a495a9db07b421d3586cf2bba1159261e7f483f7cecb552ede8"`
Dec 11 05:43:31.686 INFO running `"docker" "rm" "-f" "e3cdcdcfe6613a495a9db07b421d3586cf2bba1159261e7f483f7cecb552ede8"`
Dec 11 05:43:32.056 INFO [stdout] e3cdcdcfe6613a495a9db07b421d3586cf2bba1159261e7f483f7cecb552ede8