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[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TPC-TiKV/raft-engine-bench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTPC-TiKV%2Fraft-engine-bench", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab81229c3d8439ec260d40dc78dbb5eede3c3e5f
[INFO] checking TPC-TiKV/raft-engine-bench against try#42d1facfffa1a5357d6d62815f7be91f8ad69ed8 for pr-95474
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTPC-TiKV%2Fraft-engine-bench" "/workspace/builds/worker-3/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TPC-TiKV/raft-engine-bench on toolchain 42d1facfffa1a5357d6d62815f7be91f8ad69ed8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+42d1facfffa1a5357d6d62815f7be91f8ad69ed8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
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[INFO] started tweaking git repo https://github.com/TPC-TiKV/raft-engine-bench
[INFO] finished tweaking git repo https://github.com/TPC-TiKV/raft-engine-bench
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[INFO] crate git repo https://github.com/TPC-TiKV/raft-engine-bench already has a lockfile, it will not be regenerated
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+42d1facfffa1a5357d6d62815f7be91f8ad69ed8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused imports: `collections::VecDeque`, `mem`
[INFO] [stdout]  --> async-version/src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::VecDeque, mem, sync::Arc, thread, time::Duration};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Receiver`, `TryRecvError`
[INFO] [stdout]  --> async-version/src/main.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crossbeam_channel::{Receiver, Sender, TryRecvError};
[INFO] [stdout]   |                         ^^^^^^^^          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `LocalExecutorPoolBuilder`
[INFO] [stdout]  --> async-version/src/main.rs:5:37
[INFO] [stdout]   |
[INFO] [stdout] 5 | use glommio::{LocalExecutorBuilder, LocalExecutorPoolBuilder, Placement};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `collections::VecDeque`, `mem`
[INFO] [stdout]  --> async-version/src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::VecDeque, mem, sync::Arc, thread, time::Duration};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Receiver`, `TryRecvError`
[INFO] [stdout]  --> async-version/src/main.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crossbeam_channel::{Receiver, Sender, TryRecvError};
[INFO] [stdout]   |                         ^^^^^^^^          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `LocalExecutorPoolBuilder`
[INFO] [stdout]  --> async-version/src/main.rs:5:37
[INFO] [stdout]   |
[INFO] [stdout] 5 | use glommio::{LocalExecutorBuilder, LocalExecutorPoolBuilder, Placement};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handles`
[INFO] [stdout]   --> async-version/src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let handles: Vec<_> = (0..4)
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handles`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handles`
[INFO] [stdout]   --> async-version/src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let handles: Vec<_> = (0..4)
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handles`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.61s
[INFO] running `Command { std: "docker" "inspect" "91c8576399ba9607d8702099b2151c7ce38b75afce28ce3e05f7bf57f6d915b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91c8576399ba9607d8702099b2151c7ce38b75afce28ce3e05f7bf57f6d915b8", kill_on_drop: false }`
[INFO] [stdout] 91c8576399ba9607d8702099b2151c7ce38b75afce28ce3e05f7bf57f6d915b8