[INFO] cloning repository AlexKhomich/skype_audio_fix [INFO] running `"git" "clone" "--bare" "git://github.com/AlexKhomich/skype_audio_fix.git" "work/cache/sources/gh/AlexKhomich/skype_audio_fix"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/AlexKhomich/skype_audio_fix'... [INFO] running `"git" "clone" "work/cache/sources/gh/AlexKhomich/skype_audio_fix" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/AlexKhomich/skype_audio_fix"` [INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/AlexKhomich/skype_audio_fix'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/AlexKhomich/skype_audio_fix" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/AlexKhomich/skype_audio_fix"` [INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/AlexKhomich/skype_audio_fix'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 5c7be8f6c6e2d902baa8b88cf50ed8a2e3d19e45 [INFO] sha for GitHub repo AlexKhomich/skype_audio_fix: 5c7be8f6c6e2d902baa8b88cf50ed8a2e3d19e45 [INFO] validating manifest of AlexKhomich/skype_audio_fix on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of AlexKhomich/skype_audio_fix on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing AlexKhomich/skype_audio_fix [INFO] finished frobbing AlexKhomich/skype_audio_fix [INFO] frobbed toml for AlexKhomich/skype_audio_fix written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/AlexKhomich/skype_audio_fix/Cargo.toml [INFO] started frobbing AlexKhomich/skype_audio_fix [INFO] finished frobbing AlexKhomich/skype_audio_fix [INFO] frobbed toml for AlexKhomich/skype_audio_fix written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/AlexKhomich/skype_audio_fix/Cargo.toml [INFO] crate AlexKhomich/skype_audio_fix already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing AlexKhomich/skype_audio_fix against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"` [INFO] [stdout] d273bb97a15970747733f0a995616460cd8f3e7ec91ff34f46970dbf75a45b52 [INFO] running `"docker" "start" "-a" "d273bb97a15970747733f0a995616460cd8f3e7ec91ff34f46970dbf75a45b52"` [INFO] [stderr] Compiling skype_audio_fix v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `filename_test` [INFO] [stderr] --> src/main.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let filename_test = "/mnt/dev/test.txt"; [INFO] [stderr] | ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_filename_test` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `buffer` is never read [INFO] [stderr] --> src/main.rs:23:21 [INFO] [stderr] | [INFO] [stderr] 23 | let mut buffer: String = String::new(); [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:20:13 [INFO] [stderr] | [INFO] [stderr] 20 | let mut reader = BufReader::new(file_source); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:39:17 [INFO] [stderr] | [INFO] [stderr] 39 | writer.write(replaced.as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:40:17 [INFO] [stderr] | [INFO] [stderr] 40 | writer.write(new_line.as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:43:17 [INFO] [stderr] | [INFO] [stderr] 43 | writer.write(item.as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:44:17 [INFO] [stderr] | [INFO] [stderr] 44 | writer.write(new_line.as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.01s [INFO] running `"docker" "inspect" "d273bb97a15970747733f0a995616460cd8f3e7ec91ff34f46970dbf75a45b52"` [INFO] running `"docker" "rm" "-f" "d273bb97a15970747733f0a995616460cd8f3e7ec91ff34f46970dbf75a45b52"` [INFO] [stdout] d273bb97a15970747733f0a995616460cd8f3e7ec91ff34f46970dbf75a45b52 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"` [INFO] [stdout] 45117dd13db443acc2e1db1bcda5c35d33f8ca61f144e38e7d640e9073908905 [INFO] running `"docker" "start" "-a" "45117dd13db443acc2e1db1bcda5c35d33f8ca61f144e38e7d640e9073908905"` [INFO] [stderr] Compiling skype_audio_fix v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `filename_test` [INFO] [stderr] --> src/main.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let filename_test = "/mnt/dev/test.txt"; [INFO] [stderr] | ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_filename_test` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `buffer` is never read [INFO] [stderr] --> src/main.rs:23:21 [INFO] [stderr] | [INFO] [stderr] 23 | let mut buffer: String = String::new(); [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:20:13 [INFO] [stderr] | [INFO] [stderr] 20 | let mut reader = BufReader::new(file_source); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:39:17 [INFO] [stderr] | [INFO] [stderr] 39 | writer.write(replaced.as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:40:17 [INFO] [stderr] | [INFO] [stderr] 40 | writer.write(new_line.as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:43:17 [INFO] [stderr] | [INFO] [stderr] 43 | writer.write(item.as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:44:17 [INFO] [stderr] | [INFO] [stderr] 44 | writer.write(new_line.as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.65s [INFO] running `"docker" "inspect" "45117dd13db443acc2e1db1bcda5c35d33f8ca61f144e38e7d640e9073908905"` [INFO] running `"docker" "rm" "-f" "45117dd13db443acc2e1db1bcda5c35d33f8ca61f144e38e7d640e9073908905"` [INFO] [stdout] 45117dd13db443acc2e1db1bcda5c35d33f8ca61f144e38e7d640e9073908905 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"` [INFO] [stdout] 98571477e79e1979ad58f6d66c80d593d443515d8c6f88de538939b6e249b342 [INFO] running `"docker" "start" "-a" "98571477e79e1979ad58f6d66c80d593d443515d8c6f88de538939b6e249b342"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/crater/target/debug/deps/skype_audio_fix-e8133f10339acac7 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "98571477e79e1979ad58f6d66c80d593d443515d8c6f88de538939b6e249b342"` [INFO] running `"docker" "rm" "-f" "98571477e79e1979ad58f6d66c80d593d443515d8c6f88de538939b6e249b342"` [INFO] [stdout] 98571477e79e1979ad58f6d66c80d593d443515d8c6f88de538939b6e249b342