Dec 04 18:21:24.356 INFO checking gannonchan/var_study against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 18:21:24.356 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 18:21:25.017 INFO [stdout] 9b633fb1f57168fb0d41263c5d45b93c889276da2734e2373834dfb5fc2bf9c8
Dec 04 18:21:25.019 INFO running `"docker" "start" "-a" "9b633fb1f57168fb0d41263c5d45b93c889276da2734e2373834dfb5fc2bf9c8"`
Dec 04 18:21:26.258 INFO [stderr] usermod: no changes
Dec 04 18:21:26.303 INFO [stderr]     Checking var_study v0.1.0 (/source)
Dec 04 18:21:26.795 INFO [stderr] warning: unused variable: `first_name`
Dec 04 18:21:26.795 INFO [stderr]   --> src/main.rs:23:9
Dec 04 18:21:26.795 INFO [stderr]    |
Dec 04 18:21:26.795 INFO [stderr] 23 |     let first_name = String::from("0");
Dec 04 18:21:26.795 INFO [stderr]    |         ^^^^^^^^^^ help: consider using `_first_name` instead
Dec 04 18:21:26.795 INFO [stderr]    |
Dec 04 18:21:26.795 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 18:21:26.795 INFO [stderr] 
Dec 04 18:21:26.795 INFO [stderr] warning: unused variable: `last_name`
Dec 04 18:21:26.795 INFO [stderr]   --> src/main.rs:24:9
Dec 04 18:21:26.795 INFO [stderr]    |
Dec 04 18:21:26.795 INFO [stderr] 24 |     let last_name = String::from("张三");
Dec 04 18:21:26.795 INFO [stderr]    |         ^^^^^^^^^ help: consider using `_last_name` instead
Dec 04 18:21:26.795 INFO [stderr] 
Dec 04 18:21:26.795 INFO [stderr] warning: unused variable: `f`
Dec 04 18:21:26.795 INFO [stderr]   --> src/main.rs:73:9
Dec 04 18:21:26.795 INFO [stderr]    |
Dec 04 18:21:26.795 INFO [stderr] 73 |     let f = match f {   //使用match判断打开文件是否出现错误
Dec 04 18:21:26.795 INFO [stderr]    |         ^ help: consider using `_f` instead
Dec 04 18:21:26.795 INFO [stderr] 
Dec 04 18:21:26.795 INFO [stderr] warning: unused variable: `f`
Dec 04 18:21:26.795 INFO [stderr]   --> src/main.rs:95:9
Dec 04 18:21:26.795 INFO [stderr]    |
Dec 04 18:21:26.795 INFO [stderr] 95 |     let f = File::open("d:\\hello.txt").unwrap();
Dec 04 18:21:26.795 INFO [stderr]    |         ^ help: consider using `_f` instead
Dec 04 18:21:26.795 INFO [stderr] 
Dec 04 18:21:26.795 INFO [stderr] warning: unused variable: `f`
Dec 04 18:21:26.795 INFO [stderr]   --> src/main.rs:97:9
Dec 04 18:21:26.795 INFO [stderr]    |
Dec 04 18:21:26.795 INFO [stderr] 97 |     let f = File::open("d:\\hello.txt").expect("打开文件发生错误！");
Dec 04 18:21:26.795 INFO [stderr]    |         ^ help: consider using `_f` instead
Dec 04 18:21:26.795 INFO [stderr] 
Dec 04 18:21:26.919 INFO [stderr] warning: unused variable: `first_name`
Dec 04 18:21:26.919 INFO [stderr]   --> src/main.rs:23:9
Dec 04 18:21:26.919 INFO [stderr]    |
Dec 04 18:21:26.919 INFO [stderr] 23 |     let first_name = String::from("0");
Dec 04 18:21:26.919 INFO [stderr]    |         ^^^^^^^^^^ help: consider using `_first_name` instead
Dec 04 18:21:26.919 INFO [stderr]    |
Dec 04 18:21:26.919 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 18:21:26.919 INFO [stderr] 
Dec 04 18:21:26.919 INFO [stderr] warning: unused variable: `last_name`
Dec 04 18:21:26.919 INFO [stderr]   --> src/main.rs:24:9
Dec 04 18:21:26.919 INFO [stderr]    |
Dec 04 18:21:26.919 INFO [stderr] 24 |     let last_name = String::from("张三");
Dec 04 18:21:26.919 INFO [stderr]    |         ^^^^^^^^^ help: consider using `_last_name` instead
Dec 04 18:21:26.919 INFO [stderr] 
Dec 04 18:21:26.919 INFO [stderr] warning: unused variable: `f`
Dec 04 18:21:26.919 INFO [stderr]   --> src/main.rs:73:9
Dec 04 18:21:26.919 INFO [stderr]    |
Dec 04 18:21:26.919 INFO [stderr] 73 |     let f = match f {   //使用match判断打开文件是否出现错误
Dec 04 18:21:26.919 INFO [stderr]    |         ^ help: consider using `_f` instead
Dec 04 18:21:26.919 INFO [stderr] 
Dec 04 18:21:26.919 INFO [stderr] warning: unused variable: `f`
Dec 04 18:21:26.919 INFO [stderr]   --> src/main.rs:95:9
Dec 04 18:21:26.919 INFO [stderr]    |
Dec 04 18:21:26.919 INFO [stderr] 95 |     let f = File::open("d:\\hello.txt").unwrap();
Dec 04 18:21:26.919 INFO [stderr]    |         ^ help: consider using `_f` instead
Dec 04 18:21:26.919 INFO [stderr] 
Dec 04 18:21:26.919 INFO [stderr] warning: unused variable: `f`
Dec 04 18:21:26.919 INFO [stderr]   --> src/main.rs:97:9
Dec 04 18:21:26.919 INFO [stderr]    |
Dec 04 18:21:26.919 INFO [stderr] 97 |     let f = File::open("d:\\hello.txt").expect("打开文件发生错误！");
Dec 04 18:21:26.919 INFO [stderr]    |         ^ help: consider using `_f` instead
Dec 04 18:21:26.919 INFO [stderr] 
Dec 04 18:21:26.973 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
Dec 04 18:21:26.973 INFO [stderr] su: No module specific data is present
Dec 04 18:21:27.456 INFO running `"docker" "inspect" "9b633fb1f57168fb0d41263c5d45b93c889276da2734e2373834dfb5fc2bf9c8"`
Dec 04 18:21:27.817 INFO running `"docker" "rm" "-f" "9b633fb1f57168fb0d41263c5d45b93c889276da2734e2373834dfb5fc2bf9c8"`
Dec 04 18:21:28.115 INFO [stdout] 9b633fb1f57168fb0d41263c5d45b93c889276da2734e2373834dfb5fc2bf9c8