[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] building catunlock/file2wav against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcatunlock%2Ffile2wav" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/catunlock/file2wav on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2d7ef64f5a49a7d4eee1e3e14e5be81de6e5f028ca457b2edec3f69f9246289
[INFO] running `Command { std: "docker" "start" "-a" "d2d7ef64f5a49a7d4eee1e3e14e5be81de6e5f028ca457b2edec3f69f9246289", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2d7ef64f5a49a7d4eee1e3e14e5be81de6e5f028ca457b2edec3f69f9246289", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2d7ef64f5a49a7d4eee1e3e14e5be81de6e5f028ca457b2edec3f69f9246289", kill_on_drop: false }`
[INFO] [stdout] d2d7ef64f5a49a7d4eee1e3e14e5be81de6e5f028ca457b2edec3f69f9246289
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a7cde976ed0b86c4a0c6b6377f04d960b7d29fe702ce2a9f33ff746a25b01f7
[INFO] running `Command { std: "docker" "start" "-a" "0a7cde976ed0b86c4a0c6b6377f04d960b7d29fe702ce2a9f33ff746a25b01f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling hound v3.4.0
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling 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 `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: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let _ = writer.write_sample(audio_samples[audio_samples.len() -1]);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.03s
[INFO] running `Command { std: "docker" "inspect" "0a7cde976ed0b86c4a0c6b6377f04d960b7d29fe702ce2a9f33ff746a25b01f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a7cde976ed0b86c4a0c6b6377f04d960b7d29fe702ce2a9f33ff746a25b01f7", kill_on_drop: false }`
[INFO] [stdout] 0a7cde976ed0b86c4a0c6b6377f04d960b7d29fe702ce2a9f33ff746a25b01f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bdebc55838f303ba554699ab11a65fb1ec03ab4c2bcd2e8577678d3e50aca5d3
[INFO] running `Command { std: "docker" "start" "-a" "bdebc55838f303ba554699ab11a65fb1ec03ab4c2bcd2e8577678d3e50aca5d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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 `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: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let _ = writer.write_sample(audio_samples[audio_samples.len() -1]);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "bdebc55838f303ba554699ab11a65fb1ec03ab4c2bcd2e8577678d3e50aca5d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdebc55838f303ba554699ab11a65fb1ec03ab4c2bcd2e8577678d3e50aca5d3", kill_on_drop: false }`
[INFO] [stdout] bdebc55838f303ba554699ab11a65fb1ec03ab4c2bcd2e8577678d3e50aca5d3