[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-1.38-1/sources/1.37.0/gh/AlexKhomich/skype_audio_fix"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/AlexKhomich/skype_audio_fix'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/AlexKhomich/skype_audio_fix" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/AlexKhomich/skype_audio_fix"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of AlexKhomich/skype_audio_fix on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing AlexKhomich/skype_audio_fix against beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "build" "--frozen"` [INFO] [stdout] c30c551caee2f5d7bd742e23c5ba2e360e499407887d2578b15d67cdfc750776 [INFO] running `"docker" "start" "-a" "c30c551caee2f5d7bd742e23c5ba2e360e499407887d2578b15d67cdfc750776"` [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 0.98s [INFO] running `"docker" "inspect" "c30c551caee2f5d7bd742e23c5ba2e360e499407887d2578b15d67cdfc750776"` [INFO] running `"docker" "rm" "-f" "c30c551caee2f5d7bd742e23c5ba2e360e499407887d2578b15d67cdfc750776"` [INFO] [stdout] c30c551caee2f5d7bd742e23c5ba2e360e499407887d2578b15d67cdfc750776 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "test" "--frozen" "--no-run"` [INFO] [stdout] a57acc6ea37ed05d5dcde4be822f22eac0d656366f40ec5b3d201b0193cdd72b [INFO] running `"docker" "start" "-a" "a57acc6ea37ed05d5dcde4be822f22eac0d656366f40ec5b3d201b0193cdd72b"` [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 0.59s [INFO] running `"docker" "inspect" "a57acc6ea37ed05d5dcde4be822f22eac0d656366f40ec5b3d201b0193cdd72b"` [INFO] running `"docker" "rm" "-f" "a57acc6ea37ed05d5dcde4be822f22eac0d656366f40ec5b3d201b0193cdd72b"` [INFO] [stdout] a57acc6ea37ed05d5dcde4be822f22eac0d656366f40ec5b3d201b0193cdd72b [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "test" "--frozen"` [INFO] [stdout] 41bfb9d6b178259cf435b38c08d6f9d8f081b25dde3d2572cb673430ed2957b3 [INFO] running `"docker" "start" "-a" "41bfb9d6b178259cf435b38c08d6f9d8f081b25dde3d2572cb673430ed2957b3"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/crater/target/debug/deps/skype_audio_fix-2cf1d3b30a26dadb [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" "41bfb9d6b178259cf435b38c08d6f9d8f081b25dde3d2572cb673430ed2957b3"` [INFO] running `"docker" "rm" "-f" "41bfb9d6b178259cf435b38c08d6f9d8f081b25dde3d2572cb673430ed2957b3"` [INFO] [stdout] 41bfb9d6b178259cf435b38c08d6f9d8f081b25dde3d2572cb673430ed2957b3