Dec 05 00:53:26.692 INFO checking NotLeet/rust-file-manipulation against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 00:53:26.692 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 05 00:53:27.174 INFO [stdout] 0039517b5f308c31f7845531342448d41fd8183b2fc58e52bdacda2ba0e8af07
Dec 05 00:53:27.176 INFO running `"docker" "start" "-a" "0039517b5f308c31f7845531342448d41fd8183b2fc58e52bdacda2ba0e8af07"`
Dec 05 00:53:28.791 INFO [stderr] usermod: no changes
Dec 05 00:53:28.851 INFO [stderr]     Checking read_file v0.1.0 (/source)
Dec 05 00:53:29.395 INFO [stderr] warning: unused variable: `expr`
Dec 05 00:53:29.402 INFO [stderr]   --> src/main.rs:20:12
Dec 05 00:53:29.403 INFO [stderr]    |
Dec 05 00:53:29.403 INFO [stderr] 20 |         Ok(expr) => {
Dec 05 00:53:29.403 INFO [stderr]    |            ^^^^ help: consider using `_expr` instead
Dec 05 00:53:29.403 INFO [stderr]    |
Dec 05 00:53:29.403 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 00:53:29.403 INFO [stderr] 
Dec 05 00:53:29.403 INFO [stderr] warning: unused variable: `err`
Dec 05 00:53:29.403 INFO [stderr]   --> src/main.rs:26:13
Dec 05 00:53:29.403 INFO [stderr]    |
Dec 05 00:53:29.403 INFO [stderr] 26 |         Err(err) => {
Dec 05 00:53:29.403 INFO [stderr]    |             ^^^ help: consider using `_err` instead
Dec 05 00:53:29.403 INFO [stderr] 
Dec 05 00:53:29.403 INFO [stderr] warning: unused variable: `file_path`
Dec 05 00:53:29.403 INFO [stderr]   --> src/main.rs:81:20
Dec 05 00:53:29.403 INFO [stderr]    |
Dec 05 00:53:29.403 INFO [stderr] 81 | fn get_file_number(file_path: &PathBuf) -> i32 {
Dec 05 00:53:29.403 INFO [stderr]    |                    ^^^^^^^^^ help: consider using `_file_path` instead
Dec 05 00:53:29.403 INFO [stderr] 
Dec 05 00:53:29.427 INFO [stderr] warning: function is never used: `get_file_number`
Dec 05 00:53:29.427 INFO [stderr]   --> src/main.rs:81:1
Dec 05 00:53:29.427 INFO [stderr]    |
Dec 05 00:53:29.427 INFO [stderr] 81 | fn get_file_number(file_path: &PathBuf) -> i32 {
Dec 05 00:53:29.427 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:53:29.427 INFO [stderr]    |
Dec 05 00:53:29.427 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 00:53:29.427 INFO [stderr] 
Dec 05 00:53:29.619 INFO [stderr] warning: unused variable: `expr`
Dec 05 00:53:29.619 INFO [stderr]   --> src/main.rs:20:12
Dec 05 00:53:29.619 INFO [stderr]    |
Dec 05 00:53:29.619 INFO [stderr] 20 |         Ok(expr) => {
Dec 05 00:53:29.619 INFO [stderr]    |            ^^^^ help: consider using `_expr` instead
Dec 05 00:53:29.619 INFO [stderr]    |
Dec 05 00:53:29.619 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 00:53:29.619 INFO [stderr] 
Dec 05 00:53:29.619 INFO [stderr] warning: unused variable: `err`
Dec 05 00:53:29.619 INFO [stderr]   --> src/main.rs:26:13
Dec 05 00:53:29.619 INFO [stderr]    |
Dec 05 00:53:29.619 INFO [stderr] 26 |         Err(err) => {
Dec 05 00:53:29.619 INFO [stderr]    |             ^^^ help: consider using `_err` instead
Dec 05 00:53:29.619 INFO [stderr] 
Dec 05 00:53:29.619 INFO [stderr] warning: unused variable: `file_path`
Dec 05 00:53:29.619 INFO [stderr]   --> src/main.rs:81:20
Dec 05 00:53:29.619 INFO [stderr]    |
Dec 05 00:53:29.619 INFO [stderr] 81 | fn get_file_number(file_path: &PathBuf) -> i32 {
Dec 05 00:53:29.619 INFO [stderr]    |                    ^^^^^^^^^ help: consider using `_file_path` instead
Dec 05 00:53:29.619 INFO [stderr] 
Dec 05 00:53:29.635 INFO [stderr] warning: function is never used: `get_file_number`
Dec 05 00:53:29.635 INFO [stderr]   --> src/main.rs:81:1
Dec 05 00:53:29.635 INFO [stderr]    |
Dec 05 00:53:29.635 INFO [stderr] 81 | fn get_file_number(file_path: &PathBuf) -> i32 {
Dec 05 00:53:29.635 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:53:29.636 INFO [stderr]    |
Dec 05 00:53:29.636 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 00:53:29.636 INFO [stderr] 
Dec 05 00:53:29.683 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
Dec 05 00:53:29.687 INFO [stderr] su: No module specific data is present
Dec 05 00:53:30.363 INFO running `"docker" "inspect" "0039517b5f308c31f7845531342448d41fd8183b2fc58e52bdacda2ba0e8af07"`
Dec 05 00:53:30.716 INFO running `"docker" "rm" "-f" "0039517b5f308c31f7845531342448d41fd8183b2fc58e52bdacda2ba0e8af07"`
Dec 05 00:53:30.939 INFO [stdout] 0039517b5f308c31f7845531342448d41fd8183b2fc58e52bdacda2ba0e8af07