[INFO] fetching crate beat-detector 0.0.0...
[INFO] checking beat-detector-0.0.0 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate beat-detector 0.0.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate beat-detector 0.0.0 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate beat-detector 0.0.0
[INFO] finished tweaking crates.io crate beat-detector 0.0.0
[INFO] tweaked toml for crates.io crate beat-detector 0.0.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b52424ca8ca0b06651afb7cedf2cb7093f6b804ac1c9eb27337f4cb347bb5480
[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" "b52424ca8ca0b06651afb7cedf2cb7093f6b804ac1c9eb27337f4cb347bb5480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b52424ca8ca0b06651afb7cedf2cb7093f6b804ac1c9eb27337f4cb347bb5480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b52424ca8ca0b06651afb7cedf2cb7093f6b804ac1c9eb27337f4cb347bb5480", kill_on_drop: false }`
[INFO] [stdout] b52424ca8ca0b06651afb7cedf2cb7093f6b804ac1c9eb27337f4cb347bb5480
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 51e656a8ec845cdb4e698bbb02b0aa50b7ba5dd631107a223793ca30b8877951
[INFO] running `Command { std: "docker" "start" "-a" "51e656a8ec845cdb4e698bbb02b0aa50b7ba5dd631107a223793ca30b8877951", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking lowpass-filter v0.2.4
[INFO] [stderr]     Checking beat-detector v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `lpf`, `spectrum`
[INFO] [stdout]  --> src/lib.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::strategies::{lpf, spectrum};
[INFO] [stdout]   |                         ^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Strategy`
[INFO] [stdout]  --> src/strategies/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::Strategy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/lib.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |             _ => panic!("Unknown Strategy")
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/strategies/lpf.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(sampling_rate: u32, window_length: u16) -> Self {
[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: `new`
[INFO] [stdout]   --> src/strategies/mod.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn new(sampling_rate: u32, window_length: u16) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `window_length`
[INFO] [stdout]   --> src/strategies/mod.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn window_length(&self) -> u16 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `detector`
[INFO] [stdout]   --> src/lib.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn detector(&self, sampling_rate: u32, window_length: u16) -> impl Strategy {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[INFO] [stderr]     Checking slice-deque v0.3.0
[INFO] [stderr]     Checking minimp3 v0.5.1
[INFO] [stdout] warning: unused imports: `lpf`, `spectrum`
[INFO] [stdout]  --> src/lib.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::strategies::{lpf, spectrum};
[INFO] [stdout]   |                         ^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Strategy`
[INFO] [stdout]  --> src/strategies/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::Strategy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/lib.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |             _ => panic!("Unknown Strategy")
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `window_length`
[INFO] [stdout]   --> src/strategies/mod.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn window_length(&self) -> u16 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.32s
[INFO] running `Command { std: "docker" "inspect" "51e656a8ec845cdb4e698bbb02b0aa50b7ba5dd631107a223793ca30b8877951", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51e656a8ec845cdb4e698bbb02b0aa50b7ba5dd631107a223793ca30b8877951", kill_on_drop: false }`
[INFO] [stdout] 51e656a8ec845cdb4e698bbb02b0aa50b7ba5dd631107a223793ca30b8877951