Dec 17 11:30:19.607 INFO checking yatendernitk/rust-codes against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 11:30:19.607 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/yatendernitk/rust-codes:/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 11:30:20.142 INFO [stdout] dfa4996a75b01832cf96d1587fca3fe65997348e291cc9d4ef6c78887a24d37a
Dec 17 11:30:20.144 INFO running `"docker" "start" "-a" "dfa4996a75b01832cf96d1587fca3fe65997348e291cc9d4ef6c78887a24d37a"`
Dec 17 11:30:22.846 INFO [stderr]     Checking libc v0.2.32
Dec 17 11:30:24.089 INFO [stderr]     Checking rand v0.3.17
Dec 17 11:30:25.741 INFO [stderr]     Checking hello v0.0.1 (/opt/crater/workdir)
Dec 17 11:30:25.960 INFO [stderr] warning: variable does not need to be mutable
Dec 17 11:30:25.960 INFO [stderr]   --> src/main.rs:46:9
Dec 17 11:30:25.960 INFO [stderr]    |
Dec 17 11:30:25.960 INFO [stderr] 46 |     let mut guess: u32 = match guess.trim().parse() {
Dec 17 11:30:25.960 INFO [stderr]    |         ----^^^^^
Dec 17 11:30:25.960 INFO [stderr]    |         |
Dec 17 11:30:25.960 INFO [stderr]    |         help: remove this `mut`
Dec 17 11:30:25.960 INFO [stderr]    |
Dec 17 11:30:25.960 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 11:30:25.960 INFO [stderr] 
Dec 17 11:30:25.960 INFO [stderr] warning: function is never used: `guessing`
Dec 17 11:30:25.960 INFO [stderr]   --> src/main.rs:34:1
Dec 17 11:30:25.960 INFO [stderr]    |
Dec 17 11:30:25.960 INFO [stderr] 34 | fn guessing() {
Dec 17 11:30:25.960 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 17 11:30:25.960 INFO [stderr]    |
Dec 17 11:30:25.960 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 11:30:25.960 INFO [stderr] 
Dec 17 11:30:25.963 INFO [stderr] warning: variable does not need to be mutable
Dec 17 11:30:25.963 INFO [stderr]   --> src/main.rs:46:9
Dec 17 11:30:25.963 INFO [stderr]    |
Dec 17 11:30:25.963 INFO [stderr] 46 |     let mut guess: u32 = match guess.trim().parse() {
Dec 17 11:30:25.963 INFO [stderr]    |         ----^^^^^
Dec 17 11:30:25.963 INFO [stderr]    |         |
Dec 17 11:30:25.963 INFO [stderr]    |         help: remove this `mut`
Dec 17 11:30:25.963 INFO [stderr]    |
Dec 17 11:30:25.963 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 11:30:25.963 INFO [stderr] 
Dec 17 11:30:25.963 INFO [stderr] warning: function is never used: `guessing`
Dec 17 11:30:25.963 INFO [stderr]   --> src/main.rs:34:1
Dec 17 11:30:25.963 INFO [stderr]    |
Dec 17 11:30:25.963 INFO [stderr] 34 | fn guessing() {
Dec 17 11:30:25.963 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 17 11:30:25.963 INFO [stderr]    |
Dec 17 11:30:25.963 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 11:30:25.963 INFO [stderr] 
Dec 17 11:30:25.993 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.23s
Dec 17 11:30:27.192 INFO running `"docker" "inspect" "dfa4996a75b01832cf96d1587fca3fe65997348e291cc9d4ef6c78887a24d37a"`
Dec 17 11:30:27.546 INFO running `"docker" "rm" "-f" "dfa4996a75b01832cf96d1587fca3fe65997348e291cc9d4ef6c78887a24d37a"`
Dec 17 11:30:27.849 INFO [stdout] dfa4996a75b01832cf96d1587fca3fe65997348e291cc9d4ef6c78887a24d37a