[INFO] cloning repository https://github.com/catunlock/file2wav
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/catunlock/file2wav" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcatunlock%2Ffile2wav", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcatunlock%2Ffile2wav'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 38bd5bc88db45c1fb45675abedfb9df7e539d249
[INFO] checking catunlock/file2wav against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcatunlock%2Ffile2wav" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/catunlock/file2wav on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/catunlock/file2wav
[INFO] finished tweaking git repo https://github.com/catunlock/file2wav
[INFO] tweaked toml for git repo https://github.com/catunlock/file2wav written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/catunlock/file2wav already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6180361dffc6d845dad55ed61c435131039e3a742318d7730dedf6efb9d4f62a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6180361dffc6d845dad55ed61c435131039e3a742318d7730dedf6efb9d4f62a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6180361dffc6d845dad55ed61c435131039e3a742318d7730dedf6efb9d4f62a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6180361dffc6d845dad55ed61c435131039e3a742318d7730dedf6efb9d4f62a", kill_on_drop: false }`
[INFO] [stdout] 6180361dffc6d845dad55ed61c435131039e3a742318d7730dedf6efb9d4f62a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cd70936062948e2f796c2cbad968a00ec98f82a2d448466d6991009fc80ce87
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4cd70936062948e2f796c2cbad968a00ec98f82a2d448466d6991009fc80ce87", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking pix2wav v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `skip`
[INFO] [stdout]   --> src/main.rs:37:82
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn insert(input_wav: &str, hide_file: &str, output_wav: &str, bits_per_byte: u8, skip: usize) -> usize {
[INFO] [stdout]    |                                                                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_skip`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `skip`
[INFO] [stdout]   --> src/main.rs:82:48
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn recover(input_wav: &str, bits_per_byte: u8, skip: usize, samples_used: usize) -> Vec<u8> {
[INFO] [stdout]    |                                                ^^^^ help: if this is intentional, prefix it with an underscore: `_skip`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `samples_used`
[INFO] [stdout]   --> src/main.rs:82:61
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn recover(input_wav: &str, bits_per_byte: u8, skip: usize, samples_used: usize) -> Vec<u8> {
[INFO] [stdout]    |                                                             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_samples_used`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `skip`
[INFO] [stdout]   --> src/main.rs:37:82
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn insert(input_wav: &str, hide_file: &str, output_wav: &str, bits_per_byte: u8, skip: usize) -> usize {
[INFO] [stdout]    |                                                                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_skip`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `skip`
[INFO] [stdout]   --> src/main.rs:82:48
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn recover(input_wav: &str, bits_per_byte: u8, skip: usize, samples_used: usize) -> Vec<u8> {
[INFO] [stdout]    |                                                ^^^^ help: if this is intentional, prefix it with an underscore: `_skip`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `samples_used`
[INFO] [stdout]   --> src/main.rs:82:61
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn recover(input_wav: &str, bits_per_byte: u8, skip: usize, samples_used: usize) -> Vec<u8> {
[INFO] [stdout]    |                                                             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_samples_used`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         writer.write_sample(audio_samples[audio_samples.len() -1]);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         writer.write_sample(audio_samples[audio_samples.len() -1]);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.75s
[INFO] running `Command { std: "docker" "inspect" "4cd70936062948e2f796c2cbad968a00ec98f82a2d448466d6991009fc80ce87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cd70936062948e2f796c2cbad968a00ec98f82a2d448466d6991009fc80ce87", kill_on_drop: false }`
[INFO] [stdout] 4cd70936062948e2f796c2cbad968a00ec98f82a2d448466d6991009fc80ce87