Nov 28 05:04:04.993 INFO checking gannonchan/var_study against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 05:04:04.994 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 05:04:05.442 INFO [stdout] 4729482eb8dcca273532f37477b201ced93ad96ded1e949752f93cfff4b78153
Nov 28 05:04:05.446 INFO running `"docker" "start" "-a" "4729482eb8dcca273532f37477b201ced93ad96ded1e949752f93cfff4b78153"`
Nov 28 05:04:06.664 INFO [stderr] usermod: no changes
Nov 28 05:04:06.711 INFO [stderr]     Checking var_study v0.1.0 (/source)
Nov 28 05:04:07.278 INFO [stderr] warning: unused variable: `first_name`
Nov 28 05:04:07.278 INFO [stderr]   --> src/main.rs:23:9
Nov 28 05:04:07.278 INFO [stderr]    |
Nov 28 05:04:07.278 INFO [stderr] 23 |     let first_name = String::from("0");
Nov 28 05:04:07.278 INFO [stderr]    |         ^^^^^^^^^^ help: consider using `_first_name` instead
Nov 28 05:04:07.278 INFO [stderr]    |
Nov 28 05:04:07.278 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 05:04:07.280 INFO [stderr] 
Nov 28 05:04:07.281 INFO [stderr] warning: unused variable: `last_name`
Nov 28 05:04:07.281 INFO [stderr]   --> src/main.rs:24:9
Nov 28 05:04:07.281 INFO [stderr]    |
Nov 28 05:04:07.281 INFO [stderr] 24 |     let last_name = String::from("张三");
Nov 28 05:04:07.282 INFO [stderr]    |         ^^^^^^^^^ help: consider using `_last_name` instead
Nov 28 05:04:07.282 INFO [stderr] 
Nov 28 05:04:07.282 INFO [stderr] warning: unused variable: `f`
Nov 28 05:04:07.283 INFO [stderr]   --> src/main.rs:73:9
Nov 28 05:04:07.283 INFO [stderr]    |
Nov 28 05:04:07.283 INFO [stderr] 73 |     let f = match f {   //使用match判断打开文件是否出现错误
Nov 28 05:04:07.283 INFO [stderr]    |         ^ help: consider using `_f` instead
Nov 28 05:04:07.284 INFO [stderr] 
Nov 28 05:04:07.284 INFO [stderr] warning: unused variable: `f`
Nov 28 05:04:07.284 INFO [stderr]   --> src/main.rs:95:9
Nov 28 05:04:07.284 INFO [stderr]    |
Nov 28 05:04:07.285 INFO [stderr] 95 |     let f = File::open("d:\\hello.txt").unwrap();
Nov 28 05:04:07.285 INFO [stderr]    |         ^ help: consider using `_f` instead
Nov 28 05:04:07.285 INFO [stderr] 
Nov 28 05:04:07.286 INFO [stderr] warning: unused variable: `f`
Nov 28 05:04:07.286 INFO [stderr]   --> src/main.rs:97:9
Nov 28 05:04:07.286 INFO [stderr]    |
Nov 28 05:04:07.286 INFO [stderr] 97 |     let f = File::open("d:\\hello.txt").expect("打开文件发生错误！");
Nov 28 05:04:07.287 INFO [stderr]    |         ^ help: consider using `_f` instead
Nov 28 05:04:07.287 INFO [stderr] 
Nov 28 05:04:07.466 INFO [stderr] warning: unused variable: `first_name`
Nov 28 05:04:07.466 INFO [stderr]   --> src/main.rs:23:9
Nov 28 05:04:07.466 INFO [stderr]    |
Nov 28 05:04:07.467 INFO [stderr] 23 |     let first_name = String::from("0");
Nov 28 05:04:07.467 INFO [stderr]    |         ^^^^^^^^^^ help: consider using `_first_name` instead
Nov 28 05:04:07.467 INFO [stderr]    |
Nov 28 05:04:07.467 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 05:04:07.467 INFO [stderr] 
Nov 28 05:04:07.467 INFO [stderr] warning: unused variable: `last_name`
Nov 28 05:04:07.467 INFO [stderr]   --> src/main.rs:24:9
Nov 28 05:04:07.467 INFO [stderr]    |
Nov 28 05:04:07.467 INFO [stderr] 24 |     let last_name = String::from("张三");
Nov 28 05:04:07.467 INFO [stderr]    |         ^^^^^^^^^ help: consider using `_last_name` instead
Nov 28 05:04:07.467 INFO [stderr] 
Nov 28 05:04:07.467 INFO [stderr] warning: unused variable: `f`
Nov 28 05:04:07.467 INFO [stderr]   --> src/main.rs:73:9
Nov 28 05:04:07.467 INFO [stderr]    |
Nov 28 05:04:07.467 INFO [stderr] 73 |     let f = match f {   //使用match判断打开文件是否出现错误
Nov 28 05:04:07.467 INFO [stderr]    |         ^ help: consider using `_f` instead
Nov 28 05:04:07.467 INFO [stderr] 
Nov 28 05:04:07.467 INFO [stderr] warning: unused variable: `f`
Nov 28 05:04:07.467 INFO [stderr]   --> src/main.rs:95:9
Nov 28 05:04:07.467 INFO [stderr]    |
Nov 28 05:04:07.467 INFO [stderr] 95 |     let f = File::open("d:\\hello.txt").unwrap();
Nov 28 05:04:07.467 INFO [stderr]    |         ^ help: consider using `_f` instead
Nov 28 05:04:07.467 INFO [stderr] 
Nov 28 05:04:07.467 INFO [stderr] warning: unused variable: `f`
Nov 28 05:04:07.467 INFO [stderr]   --> src/main.rs:97:9
Nov 28 05:04:07.467 INFO [stderr]    |
Nov 28 05:04:07.467 INFO [stderr] 97 |     let f = File::open("d:\\hello.txt").expect("打开文件发生错误！");
Nov 28 05:04:07.467 INFO [stderr]    |         ^ help: consider using `_f` instead
Nov 28 05:04:07.467 INFO [stderr] 
Nov 28 05:04:07.560 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
Nov 28 05:04:07.568 INFO [stderr] su: No module specific data is present
Nov 28 05:04:08.637 INFO running `"docker" "inspect" "4729482eb8dcca273532f37477b201ced93ad96ded1e949752f93cfff4b78153"`
Nov 28 05:04:08.886 INFO running `"docker" "rm" "-f" "4729482eb8dcca273532f37477b201ced93ad96ded1e949752f93cfff4b78153"`
Nov 28 05:04:09.264 INFO [stdout] 4729482eb8dcca273532f37477b201ced93ad96ded1e949752f93cfff4b78153