[INFO] fetching crate purplesquirrel_core 0.1.0...
[INFO] checking purplesquirrel_core-0.1.0 against try#5ec4d3b0c83717313176eefa7d71e9d36dc83355 for pr-155501
[INFO] extracting crate purplesquirrel_core 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate purplesquirrel_core 0.1.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate purplesquirrel_core 0.1.0
[INFO] tweaked toml for crates.io crate purplesquirrel_core 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate purplesquirrel_core 0.1.0 on toolchain 5ec4d3b0c83717313176eefa7d71e9d36dc83355
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate purplesquirrel_core 0.1.0 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" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae30b605f1ff340e08014c1501461ae7430f4c90c2a34edde097ec8b2b7f94f9
[INFO] running `Command { std: "docker" "start" "-a" "ae30b605f1ff340e08014c1501461ae7430f4c90c2a34edde097ec8b2b7f94f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae30b605f1ff340e08014c1501461ae7430f4c90c2a34edde097ec8b2b7f94f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae30b605f1ff340e08014c1501461ae7430f4c90c2a34edde097ec8b2b7f94f9", kill_on_drop: false }`
[INFO] [stdout] ae30b605f1ff340e08014c1501461ae7430f4c90c2a34edde097ec8b2b7f94f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a60fb4e92a891de1f711c996001a46e4ce4227269968f37090436d824b7b9d3a
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[INFO] [stdout] warning: unused import: `NewsletterState`
[INFO] [stdout]  --> examples/send_newsletter.rs:5:46
[INFO] [stdout]   |
[INFO] [stdout] 5 | use purplesquirrel_core::types::{Newsletter, NewsletterState};
[INFO] [stdout]   |                                              ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sample_rate`
[INFO] [stdout]    --> tests/frequency_integration.rs:232:46
[INFO] [stdout]     |
[INFO] [stdout] 232 |         fn fingerprint_hash(samples: &[f32], sample_rate: u32) -> u64 {
[INFO] [stdout]     |                                              ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sample_rate`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sample_rate`
[INFO] [stdout]    --> tests/frequency_integration.rs:405:47
[INFO] [stdout]     |
[INFO] [stdout] 405 |         fn extract_signature(samples: &[f32], sample_rate: u32) -> Vec<f32> {
[INFO] [stdout]     |                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sample_rate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 38s
[INFO] running `Command { std: "docker" "inspect" "a60fb4e92a891de1f711c996001a46e4ce4227269968f37090436d824b7b9d3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a60fb4e92a891de1f711c996001a46e4ce4227269968f37090436d824b7b9d3a", kill_on_drop: false }`
[INFO] [stdout] a60fb4e92a891de1f711c996001a46e4ce4227269968f37090436d824b7b9d3a