[INFO] cloning repository https://github.com/rviso/eslint-plugin-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rviso/eslint-plugin-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frviso%2Feslint-plugin-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frviso%2Feslint-plugin-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cc58e20d2c07cac8f89ba07dd7c8aa41f83b4363
[INFO] checking rviso/eslint-plugin-rust against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frviso%2Feslint-plugin-rust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rviso/eslint-plugin-rust
[INFO] finished tweaking git repo https://github.com/rviso/eslint-plugin-rust
[INFO] tweaked toml for git repo https://github.com/rviso/eslint-plugin-rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rviso/eslint-plugin-rust on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rviso/eslint-plugin-rust 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf1fa25dae36fcba847845680f34965efc96e236e447d0c569abe298f4ac4561
[INFO] running `Command { std: "docker" "start" "-a" "cf1fa25dae36fcba847845680f34965efc96e236e447d0c569abe298f4ac4561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf1fa25dae36fcba847845680f34965efc96e236e447d0c569abe298f4ac4561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf1fa25dae36fcba847845680f34965efc96e236e447d0c569abe298f4ac4561", kill_on_drop: false }`
[INFO] [stdout] cf1fa25dae36fcba847845680f34965efc96e236e447d0c569abe298f4ac4561
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b051f136d641a64b3aa936c30f31032254a766c9d801d9b934c15a10edfbaac
[INFO] running `Command { std: "docker" "start" "-a" "8b051f136d641a64b3aa936c30f31032254a766c9d801d9b934c15a10edfbaac", kill_on_drop: false }`
[INFO] [stderr]     Checking clippy_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `unused_variable`
[INFO] [stdout]  --> src/main.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 |   let unused_variable = 42; // 这是一个未使用的变量，clippy 会对其发出警告
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unused_variable`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]  --> src/main.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 |   let a: &str = "hello"; // 这是一个不推荐的类型声明，clippy 会建议改进
[INFO] [stdout]   |       ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unused_variable`
[INFO] [stdout]  --> src/main.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 |   let unused_variable = 42; // 这是一个未使用的变量，clippy 会对其发出警告
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unused_variable`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]  --> src/main.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 |   let a: &str = "hello"; // 这是一个不推荐的类型声明，clippy 会建议改进
[INFO] [stdout]   |       ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "8b051f136d641a64b3aa936c30f31032254a766c9d801d9b934c15a10edfbaac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b051f136d641a64b3aa936c30f31032254a766c9d801d9b934c15a10edfbaac", kill_on_drop: false }`
[INFO] [stdout] 8b051f136d641a64b3aa936c30f31032254a766c9d801d9b934c15a10edfbaac