Dec 17 15:00:04.899 INFO checking sourcepirate/L-voice-changer against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 15:00:04.899 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/sourcepirate/L-voice-changer:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 15:00:05.353 INFO [stdout] f8df03e74b8f09286b9e72d49d3accd5a465172636b42080f95b499d5b21869a
Dec 17 15:00:05.355 INFO running `"docker" "start" "-a" "f8df03e74b8f09286b9e72d49d3accd5a465172636b42080f95b499d5b21869a"`
Dec 17 15:00:08.068 INFO [stderr]     Checking clap v2.31.2
Dec 17 15:00:08.068 INFO [stderr]     Checking regex v0.2.10
Dec 17 15:00:11.420 INFO [stderr]     Checking env_logger v0.5.6
Dec 17 15:00:13.252 INFO [stderr]     Checking lvoice v0.1.0 (/opt/crater/workdir)
Dec 17 15:00:13.484 INFO [stderr] warning: unused import: `File`
Dec 17 15:00:13.484 INFO [stderr]  --> src/temp.rs:1:15
Dec 17 15:00:13.484 INFO [stderr]   |
Dec 17 15:00:13.484 INFO [stderr] 1 | use std::fs::{File, remove_file};
Dec 17 15:00:13.484 INFO [stderr]   |               ^^^^
Dec 17 15:00:13.484 INFO [stderr]   |
Dec 17 15:00:13.484 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 15:00:13.484 INFO [stderr] 
Dec 17 15:00:13.530 INFO [stderr] warning: unused import: `File`
Dec 17 15:00:13.530 INFO [stderr]  --> src/temp.rs:1:15
Dec 17 15:00:13.530 INFO [stderr]   |
Dec 17 15:00:13.530 INFO [stderr] 1 | use std::fs::{File, remove_file};
Dec 17 15:00:13.530 INFO [stderr]   |               ^^^^
Dec 17 15:00:13.530 INFO [stderr]   |
Dec 17 15:00:13.530 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 15:00:13.530 INFO [stderr] 
Dec 17 15:00:13.591 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 15:00:13.591 INFO [stderr]   --> src/temp.rs:37:9
Dec 17 15:00:13.591 INFO [stderr]    |
Dec 17 15:00:13.591 INFO [stderr] 37 |         remove_file(self.path.as_str());
Dec 17 15:00:13.591 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:00:13.591 INFO [stderr]    |
Dec 17 15:00:13.592 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 15:00:13.592 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 15:00:13.592 INFO [stderr] 
Dec 17 15:00:13.592 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 15:00:13.592 INFO [stderr]   --> src/main.rs:48:5
Dec 17 15:00:13.592 INFO [stderr]    |
Dec 17 15:00:13.592 INFO [stderr] 48 |     lowpass_file.create(input_path.to_str().unwrap());
Dec 17 15:00:13.592 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:00:13.592 INFO [stderr]    |
Dec 17 15:00:13.592 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 15:00:13.592 INFO [stderr] 
Dec 17 15:00:13.592 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 15:00:13.592 INFO [stderr]   --> src/main.rs:49:5
Dec 17 15:00:13.592 INFO [stderr]    |
Dec 17 15:00:13.592 INFO [stderr] 49 |     highpass_file.create(input_path.to_str().unwrap());
Dec 17 15:00:13.592 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:00:13.592 INFO [stderr]    |
Dec 17 15:00:13.592 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 15:00:13.592 INFO [stderr] 
Dec 17 15:00:13.684 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 15:00:13.684 INFO [stderr]   --> src/temp.rs:37:9
Dec 17 15:00:13.684 INFO [stderr]    |
Dec 17 15:00:13.684 INFO [stderr] 37 |         remove_file(self.path.as_str());
Dec 17 15:00:13.684 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:00:13.684 INFO [stderr]    |
Dec 17 15:00:13.684 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 15:00:13.684 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 15:00:13.684 INFO [stderr] 
Dec 17 15:00:13.684 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 15:00:13.684 INFO [stderr]   --> src/main.rs:48:5
Dec 17 15:00:13.684 INFO [stderr]    |
Dec 17 15:00:13.684 INFO [stderr] 48 |     lowpass_file.create(input_path.to_str().unwrap());
Dec 17 15:00:13.684 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:00:13.684 INFO [stderr]    |
Dec 17 15:00:13.684 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 15:00:13.684 INFO [stderr] 
Dec 17 15:00:13.684 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 15:00:13.684 INFO [stderr]   --> src/main.rs:49:5
Dec 17 15:00:13.684 INFO [stderr]    |
Dec 17 15:00:13.684 INFO [stderr] 49 |     highpass_file.create(input_path.to_str().unwrap());
Dec 17 15:00:13.684 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:00:13.684 INFO [stderr]    |
Dec 17 15:00:13.684 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 15:00:13.684 INFO [stderr] 
Dec 17 15:00:13.720 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.75s
Dec 17 15:00:14.823 INFO running `"docker" "inspect" "f8df03e74b8f09286b9e72d49d3accd5a465172636b42080f95b499d5b21869a"`
Dec 17 15:00:15.056 INFO running `"docker" "rm" "-f" "f8df03e74b8f09286b9e72d49d3accd5a465172636b42080f95b499d5b21869a"`
Dec 17 15:00:15.381 INFO [stdout] f8df03e74b8f09286b9e72d49d3accd5a465172636b42080f95b499d5b21869a