[INFO] fetching crate qudit-circuit 0.2.1...
[INFO] checking qudit-circuit-0.2.1 against try#b10dae361a61486cfbdcd3aae3877ee17e00d192 for pr-153912
[INFO] extracting crate qudit-circuit 0.2.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate qudit-circuit 0.2.1
[INFO] finished tweaking crates.io crate qudit-circuit 0.2.1
[INFO] tweaked toml for crates.io crate qudit-circuit 0.2.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate qudit-circuit 0.2.1 on toolchain b10dae361a61486cfbdcd3aae3877ee17e00d192
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b10dae361a61486cfbdcd3aae3877ee17e00d192" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate qudit-circuit 0.2.1 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" "+b10dae361a61486cfbdcd3aae3877ee17e00d192" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 102700695d13f94d46571c52475f55b73925548bf499872519521d92b2d8d910
[INFO] running `Command { std: "docker" "start" "-a" "102700695d13f94d46571c52475f55b73925548bf499872519521d92b2d8d910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "102700695d13f94d46571c52475f55b73925548bf499872519521d92b2d8d910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "102700695d13f94d46571c52475f55b73925548bf499872519521d92b2d8d910", kill_on_drop: false }`
[INFO] [stdout] 102700695d13f94d46571c52475f55b73925548bf499872519521d92b2d8d910
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+b10dae361a61486cfbdcd3aae3877ee17e00d192" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9bcaac10df17c0346e72e75162d43be5ab5a16d21dfea8d355ac752aaa7351d
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[INFO] [stdout] warning: method `name` is never used
[INFO] [stdout]    --> src/operation/set.rs:195:12
[INFO] [stdout]     |
[INFO] [stdout]  32 | impl OperationSet {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 195 |     pub fn name(&self, op_code: OpCode) -> String {
[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 `name` is never used
[INFO] [stdout]    --> src/operation/set.rs:195:12
[INFO] [stdout]     |
[INFO] [stdout]  32 | impl OperationSet {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 195 |     pub fn name(&self, op_code: OpCode) -> String {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 46s
[INFO] running `Command { std: "docker" "inspect" "f9bcaac10df17c0346e72e75162d43be5ab5a16d21dfea8d355ac752aaa7351d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9bcaac10df17c0346e72e75162d43be5ab5a16d21dfea8d355ac752aaa7351d", kill_on_drop: false }`
[INFO] [stdout] f9bcaac10df17c0346e72e75162d43be5ab5a16d21dfea8d355ac752aaa7351d