[INFO] fetching crate combs-ffi 0.2.3...
[INFO] checking combs-ffi-0.2.3 against 3154cc1a3e6424e44f438a95007d043ed5ceaaf6+rustflags=-Znext-solver=coherence for pr-133502-30
[INFO] extracting crate combs-ffi 0.2.3 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate combs-ffi 0.2.3
[INFO] finished tweaking crates.io crate combs-ffi 0.2.3
[INFO] tweaked toml for crates.io crate combs-ffi 0.2.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate combs-ffi 0.2.3 on toolchain 3154cc1a3e6424e44f438a95007d043ed5ceaaf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate combs-ffi 0.2.3 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" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "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-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 89352eb0fcef501dcbe0b5b585f2ad03bea577c470c90b469d8be11de34af446
[INFO] running `Command { std: "docker" "start" "89352eb0fcef501dcbe0b5b585f2ad03bea577c470c90b469d8be11de34af446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89352eb0fcef501dcbe0b5b585f2ad03bea577c470c90b469d8be11de34af446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "89352eb0fcef501dcbe0b5b585f2ad03bea577c470c90b469d8be11de34af446" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89352eb0fcef501dcbe0b5b585f2ad03bea577c470c90b469d8be11de34af446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Znext-solver=coherence" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "89352eb0fcef501dcbe0b5b585f2ad03bea577c470c90b469d8be11de34af446" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `ChatMessageJson`
[INFO] [stdout]   --> src/types.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     ChatMessageJson, ChatRequestJson, EngineConfigJson, EngineMetadataJson, StatsJson,
[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: `SamplingParams`
[INFO] [stdout]   --> src/lib.rs:37:29
[INFO] [stdout]    |
[INFO] [stdout] 37 | use combs_runtime::{Engine, SamplingParams};
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ChatMessageJson`
[INFO] [stdout]   --> src/types.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     ChatMessageJson, ChatRequestJson, EngineConfigJson, EngineMetadataJson, StatsJson,
[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: `SamplingParams`
[INFO] [stdout]   --> src/lib.rs:37:29
[INFO] [stdout]    |
[INFO] [stdout] 37 | use combs_runtime::{Engine, SamplingParams};
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:362:13
[INFO] [stdout]     |
[INFO] [stdout] 362 |         let mut handle_event = |ev: combs_runtime::ToolEvent,
[INFO] [stdout]     |             ----^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:362:13
[INFO] [stdout]     |
[INFO] [stdout] 362 |         let mut handle_event = |ev: combs_runtime::ToolEvent,
[INFO] [stdout]     |             ----^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 04s
[INFO] running `Command { std: "docker" "inspect" "89352eb0fcef501dcbe0b5b585f2ad03bea577c470c90b469d8be11de34af446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89352eb0fcef501dcbe0b5b585f2ad03bea577c470c90b469d8be11de34af446", kill_on_drop: false }`
[INFO] [stdout] 89352eb0fcef501dcbe0b5b585f2ad03bea577c470c90b469d8be11de34af446
