Dec 05 13:51:26.865 INFO checking file_logger-0.1.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 13:51:26.865 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 05 13:51:27.343 INFO [stdout] 05fb346f35f829041bc662d13c9d4e58f2fe98561b81778310e201d2db650f83
Dec 05 13:51:27.347 INFO running `"docker" "start" "-a" "05fb346f35f829041bc662d13c9d4e58f2fe98561b81778310e201d2db650f83"`
Dec 05 13:51:28.161 INFO [stderr] usermod: no changes
Dec 05 13:51:28.229 INFO [stderr]     Checking file_logger v0.1.0 (/source)
Dec 05 13:51:29.731 INFO [stderr] warning: variable does not need to be mutable
Dec 05 13:51:29.731 INFO [stderr]   --> src/format.rs:71:40
Dec 05 13:51:29.731 INFO [stderr]    |
Dec 05 13:51:29.731 INFO [stderr] 71 |     pub fn format<W: io::Write>(&self, mut w:  &mut W, record: &LogRecord, datetime: &Tm) -> Result<(), Error>{
Dec 05 13:51:29.731 INFO [stderr]    |                                        ----^
Dec 05 13:51:29.731 INFO [stderr]    |                                        |
Dec 05 13:51:29.731 INFO [stderr]    |                                        help: remove this `mut`
Dec 05 13:51:29.731 INFO [stderr]    |
Dec 05 13:51:29.731 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 13:51:29.731 INFO [stderr] 
Dec 05 13:51:30.039 INFO [stderr] warning: variable does not need to be mutable
Dec 05 13:51:30.039 INFO [stderr]   --> src/format.rs:71:40
Dec 05 13:51:30.039 INFO [stderr]    |
Dec 05 13:51:30.039 INFO [stderr] 71 |     pub fn format<W: io::Write>(&self, mut w:  &mut W, record: &LogRecord, datetime: &Tm) -> Result<(), Error>{
Dec 05 13:51:30.039 INFO [stderr]    |                                        ----^
Dec 05 13:51:30.039 INFO [stderr]    |                                        |
Dec 05 13:51:30.039 INFO [stderr]    |                                        help: remove this `mut`
Dec 05 13:51:30.039 INFO [stderr]    |
Dec 05 13:51:30.039 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 13:51:30.040 INFO [stderr] 
Dec 05 13:51:31.575 INFO [stderr] warning: unused import: `OnError`
Dec 05 13:51:31.575 INFO [stderr]  --> src/main.rs:6:40
Dec 05 13:51:31.575 INFO [stderr]   |
Dec 05 13:51:31.575 INFO [stderr] 6 | use self::file_logger::{LoggerBuilder, OnError};
Dec 05 13:51:31.575 INFO [stderr]   |                                        ^^^^^^^
Dec 05 13:51:31.575 INFO [stderr]   |
Dec 05 13:51:31.575 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 13:51:31.575 INFO [stderr] 
Dec 05 13:51:31.601 INFO [stderr] warning: unused variable: `regex`
Dec 05 13:51:31.601 INFO [stderr]  --> src/main.rs:9:9
Dec 05 13:51:31.601 INFO [stderr]   |
Dec 05 13:51:31.601 INFO [stderr] 9 |     let regex = Regex::new("test").unwrap();
Dec 05 13:51:31.601 INFO [stderr]   |         ^^^^^ help: consider using `_regex` instead
Dec 05 13:51:31.601 INFO [stderr]   |
Dec 05 13:51:31.601 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 05 13:51:31.601 INFO [stderr] 
Dec 05 13:51:31.747 INFO [stderr] warning: unused import: `OnError`
Dec 05 13:51:31.747 INFO [stderr]  --> src/main.rs:6:40
Dec 05 13:51:31.747 INFO [stderr]   |
Dec 05 13:51:31.747 INFO [stderr] 6 | use self::file_logger::{LoggerBuilder, OnError};
Dec 05 13:51:31.747 INFO [stderr]   |                                        ^^^^^^^
Dec 05 13:51:31.747 INFO [stderr]   |
Dec 05 13:51:31.747 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 13:51:31.747 INFO [stderr] 
Dec 05 13:51:31.788 INFO [stderr] warning: unused variable: `regex`
Dec 05 13:51:31.788 INFO [stderr]  --> src/main.rs:9:9
Dec 05 13:51:31.788 INFO [stderr]   |
Dec 05 13:51:31.788 INFO [stderr] 9 |     let regex = Regex::new("test").unwrap();
Dec 05 13:51:31.788 INFO [stderr]   |         ^^^^^ help: consider using `_regex` instead
Dec 05 13:51:31.788 INFO [stderr]   |
Dec 05 13:51:31.788 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 05 13:51:31.788 INFO [stderr] 
Dec 05 13:51:31.815 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.61s
Dec 05 13:51:31.815 INFO [stderr] su: No module specific data is present
Dec 05 13:51:32.027 INFO running `"docker" "inspect" "05fb346f35f829041bc662d13c9d4e58f2fe98561b81778310e201d2db650f83"`
Dec 05 13:51:32.089 INFO running `"docker" "rm" "-f" "05fb346f35f829041bc662d13c9d4e58f2fe98561b81778310e201d2db650f83"`
Dec 05 13:51:32.183 INFO [stdout] 05fb346f35f829041bc662d13c9d4e58f2fe98561b81778310e201d2db650f83