[INFO] cloning repository https://github.com/OmeletWithoutEgg/clust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/OmeletWithoutEgg/clust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOmeletWithoutEgg%2Fclust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOmeletWithoutEgg%2Fclust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9943392786044161b3823b5979811def5590ca20
[INFO] checking OmeletWithoutEgg/clust against master#377656d3dd3f9c23a9c8713e163f4365a5261a84 for pr-146470-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOmeletWithoutEgg%2Fclust" "/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/OmeletWithoutEgg/clust
[INFO] finished tweaking git repo https://github.com/OmeletWithoutEgg/clust
[INFO] tweaked toml for git repo https://github.com/OmeletWithoutEgg/clust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/OmeletWithoutEgg/clust on toolchain 377656d3dd3f9c23a9c8713e163f4365a5261a84
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+377656d3dd3f9c23a9c8713e163f4365a5261a84" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/OmeletWithoutEgg/clust 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" "+377656d3dd3f9c23a9c8713e163f4365a5261a84" "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_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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+377656d3dd3f9c23a9c8713e163f4365a5261a84" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11eb72647e888e78666c045e964f9271ceecb2e6fa1c7cad675706699d1a246f
[INFO] running `Command { std: "docker" "start" "-a" "11eb72647e888e78666c045e964f9271ceecb2e6fa1c7cad675706699d1a246f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11eb72647e888e78666c045e964f9271ceecb2e6fa1c7cad675706699d1a246f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11eb72647e888e78666c045e964f9271ceecb2e6fa1c7cad675706699d1a246f", kill_on_drop: false }`
[INFO] [stdout] 11eb72647e888e78666c045e964f9271ceecb2e6fa1c7cad675706699d1a246f
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+377656d3dd3f9c23a9c8713e163f4365a5261a84" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c5a27122a7e97d00877893165529af052e9758278f2a6f97d43b555e40c556b
[INFO] running `Command { std: "docker" "start" "-a" "9c5a27122a7e97d00877893165529af052e9758278f2a6f97d43b555e40c556b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
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[INFO] [stderr]     Checking rustc-demangle v0.1.26
[INFO] [stderr]    Compiling anyhow v1.0.99
[INFO] [stderr]    Compiling impl-tools v0.10.3
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[INFO] [stderr]    Compiling thiserror-impl v2.0.16
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[INFO] [stderr]    Compiling clap_derive v4.5.47
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[INFO] [stderr]     Checking zstd v0.13.3
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[INFO] [stderr]     Checking thiserror v2.0.16
[INFO] [stderr]     Checking thiserror v1.0.69
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[INFO] [stderr]     Checking common_traits v0.11.3
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[INFO] [stderr]     Checking clap v4.5.47
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[INFO] [stderr]     Checking clust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `assert_invariant` is never used
[INFO] [stdout]    --> src/main.rs:137:8
[INFO] [stdout]     |
[INFO] [stdout]  72 | impl Dsu {
[INFO] [stdout]     | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 137 |     fn assert_invariant(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `assert_invariant` is never used
[INFO] [stdout]    --> src/main.rs:137:8
[INFO] [stdout]     |
[INFO] [stdout]  72 | impl Dsu {
[INFO] [stdout]     | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 137 |     fn assert_invariant(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |             self.tree_index.update(index, weight);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 33 |             let _ = self.tree_index.update(index, weight);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |             self.tree_index.update(index, weight);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 33 |             let _ = self.tree_index.update(index, weight);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |             self.tree_index.update(index, 0);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 45 |             let _ = self.tree_index.update(index, 0);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |             self.tree_index.update(index, 0);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 45 |             let _ = self.tree_index.update(index, 0);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 55.03s
[INFO] running `Command { std: "docker" "inspect" "9c5a27122a7e97d00877893165529af052e9758278f2a6f97d43b555e40c556b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c5a27122a7e97d00877893165529af052e9758278f2a6f97d43b555e40c556b", kill_on_drop: false }`
[INFO] [stdout] 9c5a27122a7e97d00877893165529af052e9758278f2a6f97d43b555e40c556b
