Nov 28 05:04:06.649 INFO checking gannonchan/var_study against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 05:04:06.649 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-7/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 05:04:07.117 INFO [stdout] ea8d9c1c0517d4d6d9d8bd78a5d5c44b41033621df1ab9eff53dde4eb6e0391d
Nov 28 05:04:07.120 INFO running `"docker" "start" "-a" "ea8d9c1c0517d4d6d9d8bd78a5d5c44b41033621df1ab9eff53dde4eb6e0391d"`
Nov 28 05:04:08.877 INFO [stderr] usermod: no changes
Nov 28 05:04:08.952 INFO [stderr]     Checking var_study v0.1.0 (/source)
Nov 28 05:04:09.641 INFO [stderr] warning: unused variable: `first_name`
Nov 28 05:04:09.641 INFO [stderr]   --> src/main.rs:23:9
Nov 28 05:04:09.641 INFO [stderr]    |
Nov 28 05:04:09.642 INFO [stderr] 23 |     let first_name = String::from("0");
Nov 28 05:04:09.642 INFO [stderr]    |         ^^^^^^^^^^ help: consider using `_first_name` instead
Nov 28 05:04:09.642 INFO [stderr]    |
Nov 28 05:04:09.642 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 05:04:09.643 INFO [stderr] 
Nov 28 05:04:09.643 INFO [stderr] warning: unused variable: `last_name`
Nov 28 05:04:09.643 INFO [stderr]   --> src/main.rs:24:9
Nov 28 05:04:09.644 INFO [stderr]    |
Nov 28 05:04:09.644 INFO [stderr] 24 |     let last_name = String::from("张三");
Nov 28 05:04:09.644 INFO [stderr]    |         ^^^^^^^^^ help: consider using `_last_name` instead
Nov 28 05:04:09.644 INFO [stderr] 
Nov 28 05:04:09.645 INFO [stderr] warning: unused variable: `f`
Nov 28 05:04:09.645 INFO [stderr]   --> src/main.rs:73:9
Nov 28 05:04:09.645 INFO [stderr]    |
Nov 28 05:04:09.646 INFO [stderr] 73 |     let f = match f {   //使用match判断打开文件是否出现错误
Nov 28 05:04:09.646 INFO [stderr]    |         ^ help: consider using `_f` instead
Nov 28 05:04:09.646 INFO [stderr] 
Nov 28 05:04:09.647 INFO [stderr] warning: unused variable: `f`
Nov 28 05:04:09.647 INFO [stderr]   --> src/main.rs:95:9
Nov 28 05:04:09.647 INFO [stderr]    |
Nov 28 05:04:09.648 INFO [stderr] 95 |     let f = File::open("d:\\hello.txt").unwrap();
Nov 28 05:04:09.648 INFO [stderr]    |         ^ help: consider using `_f` instead
Nov 28 05:04:09.652 INFO [stderr] 
Nov 28 05:04:09.652 INFO [stderr] warning: unused variable: `f`
Nov 28 05:04:09.652 INFO [stderr]   --> src/main.rs:97:9
Nov 28 05:04:09.652 INFO [stderr]    |
Nov 28 05:04:09.652 INFO [stderr] 97 |     let f = File::open("d:\\hello.txt").expect("打开文件发生错误！");
Nov 28 05:04:09.652 INFO [stderr]    |         ^ help: consider using `_f` instead
Nov 28 05:04:09.686 INFO [stderr] 
Nov 28 05:04:09.770 INFO [stderr] warning: unused variable: `first_name`
Nov 28 05:04:09.770 INFO [stderr]   --> src/main.rs:23:9
Nov 28 05:04:09.770 INFO [stderr]    |
Nov 28 05:04:09.770 INFO [stderr] 23 |     let first_name = String::from("0");
Nov 28 05:04:09.770 INFO [stderr]    |         ^^^^^^^^^^ help: consider using `_first_name` instead
Nov 28 05:04:09.770 INFO [stderr]    |
Nov 28 05:04:09.770 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 05:04:09.770 INFO [stderr] 
Nov 28 05:04:09.770 INFO [stderr] warning: unused variable: `last_name`
Nov 28 05:04:09.771 INFO [stderr]   --> src/main.rs:24:9
Nov 28 05:04:09.771 INFO [stderr]    |
Nov 28 05:04:09.771 INFO [stderr] 24 |     let last_name = String::from("张三");
Nov 28 05:04:09.771 INFO [stderr]    |         ^^^^^^^^^ help: consider using `_last_name` instead
Nov 28 05:04:09.771 INFO [stderr] 
Nov 28 05:04:09.771 INFO [stderr] warning: unused variable: `f`
Nov 28 05:04:09.771 INFO [stderr]   --> src/main.rs:73:9
Nov 28 05:04:09.771 INFO [stderr]    |
Nov 28 05:04:09.771 INFO [stderr] 73 |     let f = match f {   //使用match判断打开文件是否出现错误
Nov 28 05:04:09.771 INFO [stderr]    |         ^ help: consider using `_f` instead
Nov 28 05:04:09.771 INFO [stderr] 
Nov 28 05:04:09.771 INFO [stderr] warning: unused variable: `f`
Nov 28 05:04:09.771 INFO [stderr]   --> src/main.rs:95:9
Nov 28 05:04:09.771 INFO [stderr]    |
Nov 28 05:04:09.771 INFO [stderr] 95 |     let f = File::open("d:\\hello.txt").unwrap();
Nov 28 05:04:09.771 INFO [stderr]    |         ^ help: consider using `_f` instead
Nov 28 05:04:09.771 INFO [stderr] 
Nov 28 05:04:09.771 INFO [stderr] warning: unused variable: `f`
Nov 28 05:04:09.771 INFO [stderr]   --> src/main.rs:97:9
Nov 28 05:04:09.771 INFO [stderr]    |
Nov 28 05:04:09.771 INFO [stderr] 97 |     let f = File::open("d:\\hello.txt").expect("打开文件发生错误！");
Nov 28 05:04:09.771 INFO [stderr]    |         ^ help: consider using `_f` instead
Nov 28 05:04:09.771 INFO [stderr] 
Nov 28 05:04:09.876 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
Nov 28 05:04:09.878 INFO [stderr] su: No module specific data is present
Nov 28 05:04:10.731 INFO running `"docker" "inspect" "ea8d9c1c0517d4d6d9d8bd78a5d5c44b41033621df1ab9eff53dde4eb6e0391d"`
Nov 28 05:04:11.009 INFO running `"docker" "rm" "-f" "ea8d9c1c0517d4d6d9d8bd78a5d5c44b41033621df1ab9eff53dde4eb6e0391d"`
Nov 28 05:04:11.357 INFO [stdout] ea8d9c1c0517d4d6d9d8bd78a5d5c44b41033621df1ab9eff53dde4eb6e0391d