[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] testing lethuzulu/rust-wc-tool against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flethuzulu%2Frust-wc-tool" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-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-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lethuzulu/rust-wc-tool on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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_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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07cf71b3f651e8da3dd8055bfa760a9c606a6f976efdf99904e734428f983c32
[INFO] running `Command { std: "docker" "start" "-a" "07cf71b3f651e8da3dd8055bfa760a9c606a6f976efdf99904e734428f983c32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07cf71b3f651e8da3dd8055bfa760a9c606a6f976efdf99904e734428f983c32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07cf71b3f651e8da3dd8055bfa760a9c606a6f976efdf99904e734428f983c32", kill_on_drop: false }`
[INFO] [stdout] 07cf71b3f651e8da3dd8055bfa760a9c606a6f976efdf99904e734428f983c32
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b4af6aabd485395a34a61d3f40509ce502effaf4becbf6672232fd80d115d74
[INFO] running `Command { std: "docker" "start" "-a" "7b4af6aabd485395a34a61d3f40509ce502effaf4becbf6672232fd80d115d74", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling anstyle-query v1.1.1
[INFO] [stderr]    Compiling anstyle v1.0.8
[INFO] [stderr]    Compiling colorchoice v1.0.2
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling clap_lex v0.7.2
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling anstyle-parse v0.2.5
[INFO] [stderr]    Compiling anstream v0.6.15
[INFO] [stderr]    Compiling clap_builder v4.5.11
[INFO] [stderr]    Compiling clap v4.5.11
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.00s
[INFO] running `Command { std: "docker" "inspect" "7b4af6aabd485395a34a61d3f40509ce502effaf4becbf6672232fd80d115d74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b4af6aabd485395a34a61d3f40509ce502effaf4becbf6672232fd80d115d74", kill_on_drop: false }`
[INFO] [stdout] 7b4af6aabd485395a34a61d3f40509ce502effaf4becbf6672232fd80d115d74
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93af3c48552f6d47849d2a872551e755edf0d58d636f1c7cec294ce41483e308
[INFO] running `Command { std: "docker" "start" "-a" "93af3c48552f6d47849d2a872551e755edf0d58d636f1c7cec294ce41483e308", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "93af3c48552f6d47849d2a872551e755edf0d58d636f1c7cec294ce41483e308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93af3c48552f6d47849d2a872551e755edf0d58d636f1c7cec294ce41483e308", kill_on_drop: false }`
[INFO] [stdout] 93af3c48552f6d47849d2a872551e755edf0d58d636f1c7cec294ce41483e308
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4345bb19cf63825c168b6ad41b5231ad0ada3a58f77f13e5909826d94012f6c0
[INFO] running `Command { std: "docker" "start" "-a" "4345bb19cf63825c168b6ad41b5231ad0ada3a58f77f13e5909826d94012f6c0", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `num_chars`
[INFO] [stderr]   --> src/main.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let num_chars = temp_string.chars().count();
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_chars`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `russt-wc-tool` (bin "russt-wc-tool" test) generated 1 warning (run `cargo fix --bin "russt-wc-tool" -p russt-wc-tool --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/russt_wc_tool-6c6c8e300437755d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/russt_wc_tool-24459cbdc7690657)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests russt_wc_tool
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4345bb19cf63825c168b6ad41b5231ad0ada3a58f77f13e5909826d94012f6c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4345bb19cf63825c168b6ad41b5231ad0ada3a58f77f13e5909826d94012f6c0", kill_on_drop: false }`
[INFO] [stdout] 4345bb19cf63825c168b6ad41b5231ad0ada3a58f77f13e5909826d94012f6c0
