Dec 18 08:40:46.121 INFO checking AlexKhomich/skype_audio_fix against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 08:40:46.121 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/AlexKhomich/skype_audio_fix:/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 18 08:40:46.603 INFO [stdout] 0913acd2fea9d18eff232059dcdcbb5cbe54ca37c30d1a71ca89540f914c91f0
Dec 18 08:40:46.605 INFO running `"docker" "start" "-a" "0913acd2fea9d18eff232059dcdcbb5cbe54ca37c30d1a71ca89540f914c91f0"`
Dec 18 08:40:47.676 INFO [stderr]     Checking skype_audio_fix v0.1.0 (/opt/crater/workdir)
Dec 18 08:40:48.080 INFO [stderr] warning: unused variable: `filename_test`
Dec 18 08:40:48.080 INFO [stderr]  --> src/main.rs:9:9
Dec 18 08:40:48.080 INFO [stderr]   |
Dec 18 08:40:48.080 INFO [stderr] 9 |     let filename_test = "/mnt/dev/test.txt";
Dec 18 08:40:48.080 INFO [stderr]   |         ^^^^^^^^^^^^^ help: consider using `_filename_test` instead
Dec 18 08:40:48.080 INFO [stderr]   |
Dec 18 08:40:48.080 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 08:40:48.080 INFO [stderr] 
Dec 18 08:40:48.080 INFO [stderr] warning: value assigned to `buffer` is never read
Dec 18 08:40:48.080 INFO [stderr]   --> src/main.rs:23:21
Dec 18 08:40:48.080 INFO [stderr]    |
Dec 18 08:40:48.080 INFO [stderr] 23 |             let mut buffer: String = String::new();
Dec 18 08:40:48.080 INFO [stderr]    |                     ^^^^^^
Dec 18 08:40:48.080 INFO [stderr]    |
Dec 18 08:40:48.080 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 18 08:40:48.080 INFO [stderr] 
Dec 18 08:40:48.083 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:40:48.083 INFO [stderr]   --> src/main.rs:20:13
Dec 18 08:40:48.083 INFO [stderr]    |
Dec 18 08:40:48.083 INFO [stderr] 20 |         let mut reader = BufReader::new(file_source);
Dec 18 08:40:48.083 INFO [stderr]    |             ----^^^^^^
Dec 18 08:40:48.083 INFO [stderr]    |             |
Dec 18 08:40:48.083 INFO [stderr]    |             help: remove this `mut`
Dec 18 08:40:48.083 INFO [stderr]    |
Dec 18 08:40:48.083 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 08:40:48.083 INFO [stderr] 
Dec 18 08:40:48.092 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:40:48.092 INFO [stderr]   --> src/main.rs:39:17
Dec 18 08:40:48.092 INFO [stderr]    |
Dec 18 08:40:48.092 INFO [stderr] 39 |                 writer.write(replaced.as_bytes());
Dec 18 08:40:48.092 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:40:48.092 INFO [stderr]    |
Dec 18 08:40:48.092 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 08:40:48.092 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:40:48.092 INFO [stderr] 
Dec 18 08:40:48.092 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:40:48.092 INFO [stderr]   --> src/main.rs:40:17
Dec 18 08:40:48.092 INFO [stderr]    |
Dec 18 08:40:48.092 INFO [stderr] 40 |                 writer.write(new_line.as_bytes());
Dec 18 08:40:48.092 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:40:48.092 INFO [stderr]    |
Dec 18 08:40:48.092 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:40:48.092 INFO [stderr] 
Dec 18 08:40:48.092 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:40:48.092 INFO [stderr]   --> src/main.rs:43:17
Dec 18 08:40:48.092 INFO [stderr]    |
Dec 18 08:40:48.092 INFO [stderr] 43 |                 writer.write(item.as_bytes());
Dec 18 08:40:48.092 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:40:48.092 INFO [stderr]    |
Dec 18 08:40:48.092 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:40:48.092 INFO [stderr] 
Dec 18 08:40:48.093 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:40:48.093 INFO [stderr]   --> src/main.rs:44:17
Dec 18 08:40:48.093 INFO [stderr]    |
Dec 18 08:40:48.093 INFO [stderr] 44 |                 writer.write(new_line.as_bytes());
Dec 18 08:40:48.093 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:40:48.093 INFO [stderr]    |
Dec 18 08:40:48.093 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:40:48.093 INFO [stderr] 
Dec 18 08:40:48.136 INFO [stderr] warning: unused variable: `filename_test`
Dec 18 08:40:48.136 INFO [stderr]  --> src/main.rs:9:9
Dec 18 08:40:48.136 INFO [stderr]   |
Dec 18 08:40:48.136 INFO [stderr] 9 |     let filename_test = "/mnt/dev/test.txt";
Dec 18 08:40:48.136 INFO [stderr]   |         ^^^^^^^^^^^^^ help: consider using `_filename_test` instead
Dec 18 08:40:48.136 INFO [stderr]   |
Dec 18 08:40:48.136 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 08:40:48.136 INFO [stderr] 
Dec 18 08:40:48.136 INFO [stderr] warning: value assigned to `buffer` is never read
Dec 18 08:40:48.136 INFO [stderr]   --> src/main.rs:23:21
Dec 18 08:40:48.136 INFO [stderr]    |
Dec 18 08:40:48.136 INFO [stderr] 23 |             let mut buffer: String = String::new();
Dec 18 08:40:48.136 INFO [stderr]    |                     ^^^^^^
Dec 18 08:40:48.136 INFO [stderr]    |
Dec 18 08:40:48.136 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 18 08:40:48.136 INFO [stderr] 
Dec 18 08:40:48.140 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:40:48.140 INFO [stderr]   --> src/main.rs:20:13
Dec 18 08:40:48.140 INFO [stderr]    |
Dec 18 08:40:48.140 INFO [stderr] 20 |         let mut reader = BufReader::new(file_source);
Dec 18 08:40:48.140 INFO [stderr]    |             ----^^^^^^
Dec 18 08:40:48.140 INFO [stderr]    |             |
Dec 18 08:40:48.140 INFO [stderr]    |             help: remove this `mut`
Dec 18 08:40:48.140 INFO [stderr]    |
Dec 18 08:40:48.140 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 08:40:48.140 INFO [stderr] 
Dec 18 08:40:48.147 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:40:48.147 INFO [stderr]   --> src/main.rs:39:17
Dec 18 08:40:48.147 INFO [stderr]    |
Dec 18 08:40:48.147 INFO [stderr] 39 |                 writer.write(replaced.as_bytes());
Dec 18 08:40:48.147 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:40:48.147 INFO [stderr]    |
Dec 18 08:40:48.147 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 08:40:48.147 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:40:48.147 INFO [stderr] 
Dec 18 08:40:48.147 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:40:48.147 INFO [stderr]   --> src/main.rs:40:17
Dec 18 08:40:48.147 INFO [stderr]    |
Dec 18 08:40:48.147 INFO [stderr] 40 |                 writer.write(new_line.as_bytes());
Dec 18 08:40:48.147 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:40:48.147 INFO [stderr]    |
Dec 18 08:40:48.147 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:40:48.148 INFO [stderr] 
Dec 18 08:40:48.148 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:40:48.148 INFO [stderr]   --> src/main.rs:43:17
Dec 18 08:40:48.148 INFO [stderr]    |
Dec 18 08:40:48.148 INFO [stderr] 43 |                 writer.write(item.as_bytes());
Dec 18 08:40:48.148 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:40:48.148 INFO [stderr]    |
Dec 18 08:40:48.148 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:40:48.148 INFO [stderr] 
Dec 18 08:40:48.148 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:40:48.148 INFO [stderr]   --> src/main.rs:44:17
Dec 18 08:40:48.148 INFO [stderr]    |
Dec 18 08:40:48.148 INFO [stderr] 44 |                 writer.write(new_line.as_bytes());
Dec 18 08:40:48.148 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:40:48.148 INFO [stderr]    |
Dec 18 08:40:48.148 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:40:48.148 INFO [stderr] 
Dec 18 08:40:48.160 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
Dec 18 08:40:48.458 INFO running `"docker" "inspect" "0913acd2fea9d18eff232059dcdcbb5cbe54ca37c30d1a71ca89540f914c91f0"`
Dec 18 08:40:48.608 INFO running `"docker" "rm" "-f" "0913acd2fea9d18eff232059dcdcbb5cbe54ca37c30d1a71ca89540f914c91f0"`
Dec 18 08:40:48.754 INFO [stdout] 0913acd2fea9d18eff232059dcdcbb5cbe54ca37c30d1a71ca89540f914c91f0