[INFO] cloning repository https://github.com/avwhite/dws
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/avwhite/dws" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Favwhite%2Fdws"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Favwhite%2Fdws'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dc4e71dec784acf6eddfe86d9cd4239fbc3e590c
[INFO] checking avwhite/dws against master#783139bd8fc3b94fac9a1bf81bba2c506e8221b6 for pr-72644
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Favwhite%2Fdws" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/avwhite/dws on toolchain 783139bd8fc3b94fac9a1bf81bba2c506e8221b6
[INFO] running `"/workspace/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/avwhite/dws
[INFO] finished tweaking git repo https://github.com/avwhite/dws
[INFO] tweaked toml for git repo https://github.com/avwhite/dws written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/avwhite/dws already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bd6b46dfeed4c1e870bf1f56e95e36c19ee10edc32dca2a12abe0abeabf62499
[INFO] running `"docker" "start" "-a" "bd6b46dfeed4c1e870bf1f56e95e36c19ee10edc32dca2a12abe0abeabf62499"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking sample v0.10.0
[INFO] [stderr]     Checking libloading v0.4.3
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]     Checking jack-sys v0.2.0
[INFO] [stderr]     Checking jack v0.6.2
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking dws v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/main.rs:47:26
[INFO] [stderr]    |
[INFO] [stderr] 47 |             while let Ok(f) = rx.try_recv() {
[INFO] [stderr]    |                          ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]   --> src/main.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let d = 10.0;
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `h`
[INFO] [stderr]   --> src/main.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let h = 20.0;
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/main.rs:47:26
[INFO] [stderr]    |
[INFO] [stderr] 47 |             while let Ok(f) = rx.try_recv() {
[INFO] [stderr]    |                          ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]   --> src/main.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let d = 10.0;
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `h`
[INFO] [stderr]   --> src/main.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let h = 20.0;
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Echo`
[INFO] [stderr]   --> src/effects.rs:30:12
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub struct Echo<T>
[INFO] [stderr]    |            ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/effects.rs:38:12
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn new(d : f32, h: f32, sample_rate: usize, capacity: usize) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_params`
[INFO] [stderr]   --> src/effects.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn set_params(self: &mut Self, params: EchoParameters)
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `tick`
[INFO] [stderr]   --> src/effects.rs:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn tick(self : &mut Self, in_frame: T) -> T {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Echo`
[INFO] [stderr]   --> src/effects.rs:30:12
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub struct Echo<T>
[INFO] [stderr]    |            ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/effects.rs:38:12
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn new(d : f32, h: f32, sample_rate: usize, capacity: usize) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_params`
[INFO] [stderr]   --> src/effects.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn set_params(self: &mut Self, params: EchoParameters)
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `tick`
[INFO] [stderr]   --> src/effects.rs:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn tick(self : &mut Self, in_frame: T) -> T {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.53s
[INFO] running `"docker" "inspect" "bd6b46dfeed4c1e870bf1f56e95e36c19ee10edc32dca2a12abe0abeabf62499"`
[INFO] running `"docker" "rm" "-f" "bd6b46dfeed4c1e870bf1f56e95e36c19ee10edc32dca2a12abe0abeabf62499"`
[INFO] [stdout] bd6b46dfeed4c1e870bf1f56e95e36c19ee10edc32dca2a12abe0abeabf62499