[INFO] updating cached repository AlexKhomich/skype_audio_fix [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/AlexKhomich/skype_audio_fix [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/AlexKhomich/skype_audio_fix" "work/ex/beta-1.37-6/sources/1.36.0/gh/AlexKhomich/skype_audio_fix"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/AlexKhomich/skype_audio_fix'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/AlexKhomich/skype_audio_fix" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AlexKhomich/skype_audio_fix"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of AlexKhomich/skype_audio_fix on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "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/beta-1.37-6/sources/1.36.0/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/beta-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing AlexKhomich/skype_audio_fix against beta-2019-07-23 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"` [INFO] [stdout] 71c21d372a9ab9c1c6868cd6536afee4b7cb3c4a54e5bc5dddff04ba30fa4206 [INFO] running `"docker" "start" "-a" "71c21d372a9ab9c1c6868cd6536afee4b7cb3c4a54e5bc5dddff04ba30fa4206"` [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 0.96s [INFO] running `"docker" "inspect" "71c21d372a9ab9c1c6868cd6536afee4b7cb3c4a54e5bc5dddff04ba30fa4206"` [INFO] running `"docker" "rm" "-f" "71c21d372a9ab9c1c6868cd6536afee4b7cb3c4a54e5bc5dddff04ba30fa4206"` [INFO] [stdout] 71c21d372a9ab9c1c6868cd6536afee4b7cb3c4a54e5bc5dddff04ba30fa4206 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"` [INFO] [stdout] 131336cb0ae6655fa39c8720c64c5ac2e8556df0caf814ff0302283cfc5d2576 [INFO] running `"docker" "start" "-a" "131336cb0ae6655fa39c8720c64c5ac2e8556df0caf814ff0302283cfc5d2576"` [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 0.42s [INFO] running `"docker" "inspect" "131336cb0ae6655fa39c8720c64c5ac2e8556df0caf814ff0302283cfc5d2576"` [INFO] running `"docker" "rm" "-f" "131336cb0ae6655fa39c8720c64c5ac2e8556df0caf814ff0302283cfc5d2576"` [INFO] [stdout] 131336cb0ae6655fa39c8720c64c5ac2e8556df0caf814ff0302283cfc5d2576 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen"` [INFO] [stdout] 329235daa3662bd1912e3803403e2e7535df3df272c84c683a69865d37aedfa0 [INFO] running `"docker" "start" "-a" "329235daa3662bd1912e3803403e2e7535df3df272c84c683a69865d37aedfa0"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/crater/target/debug/deps/skype_audio_fix-e7c0bbb4fad5e23a [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" "329235daa3662bd1912e3803403e2e7535df3df272c84c683a69865d37aedfa0"` [INFO] running `"docker" "rm" "-f" "329235daa3662bd1912e3803403e2e7535df3df272c84c683a69865d37aedfa0"` [INFO] [stdout] 329235daa3662bd1912e3803403e2e7535df3df272c84c683a69865d37aedfa0