Dec 19 11:17:48.123 INFO checking padenot/trace-filtering against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 11:17:48.123 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/padenot/trace-filtering:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 11:17:48.557 INFO [stdout] 0754e8c6053fbc20957e4e5fa53a08247ae136f77729e97e5f991fdec90c5f45
Dec 19 11:17:48.579 INFO running `"docker" "start" "-a" "0754e8c6053fbc20957e4e5fa53a08247ae136f77729e97e5f991fdec90c5f45"`
Dec 19 11:17:50.116 INFO [stderr]     Checking trace-filtering v0.1.0 (/opt/crater/workdir)
Dec 19 11:17:50.436 INFO [stderr] warning: unused import: `std::io::Read`
Dec 19 11:17:50.436 INFO [stderr]  --> src/main.rs:7:5
Dec 19 11:17:50.436 INFO [stderr]   |
Dec 19 11:17:50.436 INFO [stderr] 7 | use std::io::Read;
Dec 19 11:17:50.436 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 19 11:17:50.436 INFO [stderr]   |
Dec 19 11:17:50.436 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 11:17:50.436 INFO [stderr] 
Dec 19 11:17:50.560 INFO [stderr] warning: unused import: `std::io::Read`
Dec 19 11:17:50.560 INFO [stderr]  --> src/main.rs:7:5
Dec 19 11:17:50.560 INFO [stderr]   |
Dec 19 11:17:50.560 INFO [stderr] 7 | use std::io::Read;
Dec 19 11:17:50.560 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 19 11:17:50.560 INFO [stderr]   |
Dec 19 11:17:50.560 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 11:17:50.560 INFO [stderr] 
Dec 19 11:17:50.612 INFO [stderr] warning: unused variable: `duration`
Dec 19 11:17:50.612 INFO [stderr]   --> src/main.rs:33:13
Dec 19 11:17:50.612 INFO [stderr]    |
Dec 19 11:17:50.612 INFO [stderr] 33 |     let mut duration = 0;
Dec 19 11:17:50.612 INFO [stderr]    |             ^^^^^^^^ help: consider using `_duration` instead
Dec 19 11:17:50.612 INFO [stderr]    |
Dec 19 11:17:50.612 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 11:17:50.612 INFO [stderr] 
Dec 19 11:17:50.705 INFO [stderr] warning: variable does not need to be mutable
Dec 19 11:17:50.705 INFO [stderr]   --> src/main.rs:27:9
Dec 19 11:17:50.705 INFO [stderr]    |
Dec 19 11:17:50.705 INFO [stderr] 27 |     let mut f = File::open("trace.log.child-1").expect("file not found");
Dec 19 11:17:50.705 INFO [stderr]    |         ----^
Dec 19 11:17:50.705 INFO [stderr]    |         |
Dec 19 11:17:50.705 INFO [stderr]    |         help: remove this `mut`
Dec 19 11:17:50.705 INFO [stderr]    |
Dec 19 11:17:50.705 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 11:17:50.705 INFO [stderr] 
Dec 19 11:17:50.705 INFO [stderr] warning: variable does not need to be mutable
Dec 19 11:17:50.705 INFO [stderr]   --> src/main.rs:33:9
Dec 19 11:17:50.705 INFO [stderr]    |
Dec 19 11:17:50.705 INFO [stderr] 33 |     let mut duration = 0;
Dec 19 11:17:50.705 INFO [stderr]    |         ----^^^^^^^^
Dec 19 11:17:50.705 INFO [stderr]    |         |
Dec 19 11:17:50.705 INFO [stderr]    |         help: remove this `mut`
Dec 19 11:17:50.705 INFO [stderr] 
Dec 19 11:17:50.829 INFO [stderr] warning: unused variable: `duration`
Dec 19 11:17:50.829 INFO [stderr]   --> src/main.rs:33:13
Dec 19 11:17:50.829 INFO [stderr]    |
Dec 19 11:17:50.829 INFO [stderr] 33 |     let mut duration = 0;
Dec 19 11:17:50.829 INFO [stderr]    |             ^^^^^^^^ help: consider using `_duration` instead
Dec 19 11:17:50.829 INFO [stderr]    |
Dec 19 11:17:50.829 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 11:17:50.829 INFO [stderr] 
Dec 19 11:17:50.928 INFO [stderr] warning: variable does not need to be mutable
Dec 19 11:17:50.928 INFO [stderr]   --> src/main.rs:27:9
Dec 19 11:17:50.928 INFO [stderr]    |
Dec 19 11:17:50.928 INFO [stderr] 27 |     let mut f = File::open("trace.log.child-1").expect("file not found");
Dec 19 11:17:50.928 INFO [stderr]    |         ----^
Dec 19 11:17:50.928 INFO [stderr]    |         |
Dec 19 11:17:50.928 INFO [stderr]    |         help: remove this `mut`
Dec 19 11:17:50.928 INFO [stderr]    |
Dec 19 11:17:50.928 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 11:17:50.928 INFO [stderr] 
Dec 19 11:17:50.928 INFO [stderr] warning: variable does not need to be mutable
Dec 19 11:17:50.928 INFO [stderr]   --> src/main.rs:33:9
Dec 19 11:17:50.928 INFO [stderr]    |
Dec 19 11:17:50.928 INFO [stderr] 33 |     let mut duration = 0;
Dec 19 11:17:50.928 INFO [stderr]    |         ----^^^^^^^^
Dec 19 11:17:50.928 INFO [stderr]    |         |
Dec 19 11:17:50.928 INFO [stderr]    |         help: remove this `mut`
Dec 19 11:17:50.928 INFO [stderr] 
Dec 19 11:17:50.964 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
Dec 19 11:17:51.936 INFO running `"docker" "inspect" "0754e8c6053fbc20957e4e5fa53a08247ae136f77729e97e5f991fdec90c5f45"`
Dec 19 11:17:52.316 INFO running `"docker" "rm" "-f" "0754e8c6053fbc20957e4e5fa53a08247ae136f77729e97e5f991fdec90c5f45"`
Dec 19 11:17:52.628 INFO [stdout] 0754e8c6053fbc20957e4e5fa53a08247ae136f77729e97e5f991fdec90c5f45