[INFO] cloning repository https://github.com/parbo/soundfont-deluge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/parbo/soundfont-deluge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparbo%2Fsoundfont-deluge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparbo%2Fsoundfont-deluge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6585d6fb2f125aa1e2dec7ff7b9c00197ffbd491
[INFO] checking parbo/soundfont-deluge against master#0dce3f606e05cffab7361c132a399d3550ab0df8 for pr-78376
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparbo%2Fsoundfont-deluge" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/parbo/soundfont-deluge on toolchain 0dce3f606e05cffab7361c132a399d3550ab0df8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/parbo/soundfont-deluge
[INFO] finished tweaking git repo https://github.com/parbo/soundfont-deluge
[INFO] tweaked toml for git repo https://github.com/parbo/soundfont-deluge written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/parbo/soundfont-deluge already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2562edaef35286899d671bf0d358ed5d58043f6a17a8a3439b9133637664b7b2
[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" "2562edaef35286899d671bf0d358ed5d58043f6a17a8a3439b9133637664b7b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2562edaef35286899d671bf0d358ed5d58043f6a17a8a3439b9133637664b7b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2562edaef35286899d671bf0d358ed5d58043f6a17a8a3439b9133637664b7b2", kill_on_drop: false }`
[INFO] [stdout] 2562edaef35286899d671bf0d358ed5d58043f6a17a8a3439b9133637664b7b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0b844ecf4dfa3c70d12957bf22beb4d8beb0458684ef21e9db3a7335ccc5172
[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" "f0b844ecf4dfa3c70d12957bf22beb4d8beb0458684ef21e9db3a7335ccc5172", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]     Checking xmlwriter v0.1.0
[INFO] [stderr]     Checking riff v1.0.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking riff v0.1.1
[INFO] [stderr]     Checking wav v0.4.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking env_logger v0.8.1
[INFO] [stderr]    Compiling binread_derive v1.1.1
[INFO] [stderr]     Checking binread v1.1.1
[INFO] [stderr]     Checking soundfont-deluge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `low`
[INFO] [stdout]    --> src/main.rs:825:49
[INFO] [stdout]     |
[INFO] [stdout] 825 |                 if let Some(Generator::KeyRange(low, high)) =
[INFO] [stdout]     |                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_low`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `low`
[INFO] [stdout]    --> src/main.rs:825:49
[INFO] [stdout]     |
[INFO] [stdout] 825 |                 if let Some(Generator::KeyRange(low, high)) =
[INFO] [stdout]     |                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_low`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sample_data`
[INFO] [stdout]    --> src/main.rs:395:5
[INFO] [stdout]     |
[INFO] [stdout] 395 |     sample_data: Vec<u8>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump`
[INFO] [stdout]    --> src/main.rs:614:8
[INFO] [stdout]     |
[INFO] [stdout] 614 |     fn dump(&self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `save_samples`
[INFO] [stdout]    --> src/main.rs:946:8
[INFO] [stdout]     |
[INFO] [stdout] 946 |     fn save_samples(&self, folder: &Path) -> std::io::Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sample_data`
[INFO] [stdout]    --> src/main.rs:395:5
[INFO] [stdout]     |
[INFO] [stdout] 395 |     sample_data: Vec<u8>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump`
[INFO] [stdout]    --> src/main.rs:614:8
[INFO] [stdout]     |
[INFO] [stdout] 614 |     fn dump(&self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `save_samples`
[INFO] [stdout]    --> src/main.rs:946:8
[INFO] [stdout]     |
[INFO] [stdout] 946 |     fn save_samples(&self, folder: &Path) -> std::io::Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.77s
[INFO] running `Command { std: "docker" "inspect" "f0b844ecf4dfa3c70d12957bf22beb4d8beb0458684ef21e9db3a7335ccc5172", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0b844ecf4dfa3c70d12957bf22beb4d8beb0458684ef21e9db3a7335ccc5172", kill_on_drop: false }`
[INFO] [stdout] f0b844ecf4dfa3c70d12957bf22beb4d8beb0458684ef21e9db3a7335ccc5172