[INFO] cloning repository https://github.com/lethuzulu/rust-wc-tool
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lethuzulu/rust-wc-tool" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flethuzulu%2Frust-wc-tool", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flethuzulu%2Frust-wc-tool'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] df35dc55228a74b18734bb2ce1c408a71ae92f18
[INFO] checking lethuzulu/rust-wc-tool against try#dd2d87b6cc31907ae305875eb6be399783dc0256 for pr-143929
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flethuzulu%2Frust-wc-tool" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lethuzulu/rust-wc-tool
[INFO] finished tweaking git repo https://github.com/lethuzulu/rust-wc-tool
[INFO] tweaked toml for git repo https://github.com/lethuzulu/rust-wc-tool written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lethuzulu/rust-wc-tool on toolchain dd2d87b6cc31907ae305875eb6be399783dc0256
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lethuzulu/rust-wc-tool 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" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap_builder v4.5.11
[INFO] [stderr]   Downloaded clap v4.5.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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_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:e8955075918b6d00525c617f7c34ee2595c70db70b3cf844dc875e4d3604499b" "/opt/rustwide/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b7eb807e83e850d39e15a32975c1e96fce79d99c3d865e7883ddbd6c6d2864c
[INFO] running `Command { std: "docker" "start" "-a" "1b7eb807e83e850d39e15a32975c1e96fce79d99c3d865e7883ddbd6c6d2864c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b7eb807e83e850d39e15a32975c1e96fce79d99c3d865e7883ddbd6c6d2864c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b7eb807e83e850d39e15a32975c1e96fce79d99c3d865e7883ddbd6c6d2864c", kill_on_drop: false }`
[INFO] [stdout] 1b7eb807e83e850d39e15a32975c1e96fce79d99c3d865e7883ddbd6c6d2864c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e8955075918b6d00525c617f7c34ee2595c70db70b3cf844dc875e4d3604499b" "/opt/rustwide/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56ffb0852acbae674a7adb89d8cb6baee779680d78a1a7fb67bc558f5c094b71
[INFO] running `Command { std: "docker" "start" "-a" "56ffb0852acbae674a7adb89d8cb6baee779680d78a1a7fb67bc558f5c094b71", kill_on_drop: false }`
[INFO] [stderr]     Checking anstyle-parse v0.2.5
[INFO] [stderr]     Checking colorchoice v1.0.2
[INFO] [stderr]     Checking anstyle-query v1.1.1
[INFO] [stderr]     Checking anstyle v1.0.8
[INFO] [stderr]     Checking clap_lex v0.7.2
[INFO] [stderr]     Checking anstream v0.6.15
[INFO] [stderr]     Checking clap_builder v4.5.11
[INFO] [stderr]     Checking clap v4.5.11
[INFO] [stderr]     Checking russt-wc-tool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `num_chars`
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let num_chars = temp_string.chars().count();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_chars`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_chars`
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let num_chars = temp_string.chars().count();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_chars`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.32s
[INFO] running `Command { std: "docker" "inspect" "56ffb0852acbae674a7adb89d8cb6baee779680d78a1a7fb67bc558f5c094b71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56ffb0852acbae674a7adb89d8cb6baee779680d78a1a7fb67bc558f5c094b71", kill_on_drop: false }`
[INFO] [stdout] 56ffb0852acbae674a7adb89d8cb6baee779680d78a1a7fb67bc558f5c094b71