[INFO] cloning repository https://github.com/VanjaRo/rusty-monkey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/VanjaRo/rusty-monkey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVanjaRo%2Frusty-monkey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVanjaRo%2Frusty-monkey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ced804e4570df6144618f263e3545e2d3f0301b
[INFO] checking VanjaRo/rusty-monkey against master#51ff895062ba60a7cba53f57af928c3fb7b0f2f4 for pr-146167
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVanjaRo%2Frusty-monkey" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/VanjaRo/rusty-monkey
[INFO] finished tweaking git repo https://github.com/VanjaRo/rusty-monkey
[INFO] tweaked toml for git repo https://github.com/VanjaRo/rusty-monkey written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/VanjaRo/rusty-monkey on toolchain 51ff895062ba60a7cba53f57af928c3fb7b0f2f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+51ff895062ba60a7cba53f57af928c3fb7b0f2f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/VanjaRo/rusty-monkey 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" "+51ff895062ba60a7cba53f57af928c3fb7b0f2f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+51ff895062ba60a7cba53f57af928c3fb7b0f2f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> tests/extension.rs:296:9
[INFO] [stdout]     |
[INFO] [stdout] 296 |     use super::*;
[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 import: `wasm_bindgen::JsCast`
[INFO] [stdout]    --> tests/extension.rs:297:9
[INFO] [stdout]     |
[INFO] [stdout] 297 |     use wasm_bindgen::JsCast;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Document`, `Element`, `MutationObserverInit`, and `MutationObserver`
[INFO] [stdout]    --> tests/extension.rs:299:19
[INFO] [stdout]     |
[INFO] [stdout] 299 |     use web_sys::{Document, Element, MutationObserver, MutationObserverInit};
[INFO] [stdout]     |                   ^^^^^^^^  ^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> tests/extension.rs:296:9
[INFO] [stdout]     |
[INFO] [stdout] 296 |     use super::*;
[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 import: `wasm_bindgen::JsCast`
[INFO] [stdout]    --> tests/extension.rs:297:9
[INFO] [stdout]     |
[INFO] [stdout] 297 |     use wasm_bindgen::JsCast;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Document`, `Element`, `MutationObserverInit`, and `MutationObserver`
[INFO] [stdout]    --> tests/extension.rs:299:19
[INFO] [stdout]     |
[INFO] [stdout] 299 |     use web_sys::{Document, Element, MutationObserver, MutationObserverInit};
[INFO] [stdout]     |                   ^^^^^^^^  ^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_insignificant_element_detection` is never used
[INFO] [stdout]    --> tests/extension.rs:303:8
[INFO] [stdout]     |
[INFO] [stdout] 303 |     fn test_insignificant_element_detection() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_significant_element_detection` is never used
[INFO] [stdout]    --> tests/extension.rs:318:8
[INFO] [stdout]     |
[INFO] [stdout] 318 |     fn test_significant_element_detection() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_debounce_mechanism` is never used
[INFO] [stdout]    --> tests/extension.rs:333:14
[INFO] [stdout]     |
[INFO] [stdout] 333 |     async fn test_debounce_mechanism() {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_early_exit_optimization` is never used
[INFO] [stdout]    --> tests/extension.rs:356:8
[INFO] [stdout]     |
[INFO] [stdout] 356 |     fn test_early_exit_optimization() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_mutation_batching` is never used
[INFO] [stdout]    --> tests/extension.rs:368:8
[INFO] [stdout]     |
[INFO] [stdout] 368 |     fn test_mutation_batching() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_insignificant_element_detection` is never used
[INFO] [stdout]    --> tests/extension.rs:303:8
[INFO] [stdout]     |
[INFO] [stdout] 303 |     fn test_insignificant_element_detection() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_significant_element_detection` is never used
[INFO] [stdout]    --> tests/extension.rs:318:8
[INFO] [stdout]     |
[INFO] [stdout] 318 |     fn test_significant_element_detection() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_debounce_mechanism` is never used
[INFO] [stdout]    --> tests/extension.rs:333:14
[INFO] [stdout]     |
[INFO] [stdout] 333 |     async fn test_debounce_mechanism() {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_early_exit_optimization` is never used
[INFO] [stdout]    --> tests/extension.rs:356:8
[INFO] [stdout]     |
[INFO] [stdout] 356 |     fn test_early_exit_optimization() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_mutation_batching` is never used
[INFO] [stdout]    --> tests/extension.rs:368:8
[INFO] [stdout]     |
[INFO] [stdout] 368 |     fn test_mutation_batching() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 13s
[INFO] running `Command { std: "docker" "inspect" "d7fab7abaf2cc964c1322d40116d8a527715b1bd096ca5e711e58c065650bdb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7fab7abaf2cc964c1322d40116d8a527715b1bd096ca5e711e58c065650bdb7", kill_on_drop: false }`
[INFO] [stdout] d7fab7abaf2cc964c1322d40116d8a527715b1bd096ca5e711e58c065650bdb7