[INFO] fetching crate stf-runner 0.1.0...
[INFO] testing stf-runner-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate stf-runner 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate stf-runner 0.1.0
[INFO] finished tweaking crates.io crate stf-runner 0.1.0
[INFO] tweaked toml for crates.io crate stf-runner 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stf-runner 0.1.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 36d7294c8d228476eca9f879a232a7aafbeb0f08223a3e8b2eb11a9acf0694ca
[INFO] running `Command { std: "docker" "start" "-a" "36d7294c8d228476eca9f879a232a7aafbeb0f08223a3e8b2eb11a9acf0694ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36d7294c8d228476eca9f879a232a7aafbeb0f08223a3e8b2eb11a9acf0694ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36d7294c8d228476eca9f879a232a7aafbeb0f08223a3e8b2eb11a9acf0694ca", kill_on_drop: false }`
[INFO] [stdout] 36d7294c8d228476eca9f879a232a7aafbeb0f08223a3e8b2eb11a9acf0694ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 3a40ee7a2df90c01c197ff4c95b8ee019c63f18251e3752d1e30638e2878c441
[INFO] running `Command { std: "docker" "start" "-a" "3a40ee7a2df90c01c197ff4c95b8ee019c63f18251e3752d1e30638e2878c441", kill_on_drop: false }`
[INFO] [stderr]    Compiling stf-runner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `RED` is never used
[INFO] [stdout]  --> src/lib.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const RED: &str = "\u{001b}[31m";
[INFO] [stdout]   |       ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "3a40ee7a2df90c01c197ff4c95b8ee019c63f18251e3752d1e30638e2878c441", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a40ee7a2df90c01c197ff4c95b8ee019c63f18251e3752d1e30638e2878c441", kill_on_drop: false }`
[INFO] [stdout] 3a40ee7a2df90c01c197ff4c95b8ee019c63f18251e3752d1e30638e2878c441
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] ee5c8cc9d5d4d8c05f2ce95d886921d4f13ffc9b74cde5c3184d72503d57fd77
[INFO] running `Command { std: "docker" "start" "-a" "ee5c8cc9d5d4d8c05f2ce95d886921d4f13ffc9b74cde5c3184d72503d57fd77", kill_on_drop: false }`
[INFO] [stdout] warning: constant `RED` is never used
[INFO] [stdout]  --> src/lib.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const RED: &str = "\u{001b}[31m";
[INFO] [stdout]   |       ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling stf-runner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `RED` is never used
[INFO] [stdout]  --> src/lib.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const RED: &str = "\u{001b}[31m";
[INFO] [stdout]   |       ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "ee5c8cc9d5d4d8c05f2ce95d886921d4f13ffc9b74cde5c3184d72503d57fd77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee5c8cc9d5d4d8c05f2ce95d886921d4f13ffc9b74cde5c3184d72503d57fd77", kill_on_drop: false }`
[INFO] [stdout] ee5c8cc9d5d4d8c05f2ce95d886921d4f13ffc9b74cde5c3184d72503d57fd77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f1bef3fc5e8e82d6dca4896e2966136288c860abb580bb4f7ce9bd66b91989fe
[INFO] running `Command { std: "docker" "start" "-a" "f1bef3fc5e8e82d6dca4896e2966136288c860abb580bb4f7ce9bd66b91989fe", kill_on_drop: false }`
[INFO] [stderr] warning: constant `RED` is never used
[INFO] [stderr]  --> src/lib.rs:3:7
[INFO] [stderr]   |
[INFO] [stderr] 3 | const RED: &str = "\u{001b}[31m";
[INFO] [stderr]   |       ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `stf-runner` (lib) generated 1 warning
[INFO] [stderr] warning: `stf-runner` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stf_runner-66250f5fbb94766a)
[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 stf_runner
[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" "f1bef3fc5e8e82d6dca4896e2966136288c860abb580bb4f7ce9bd66b91989fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1bef3fc5e8e82d6dca4896e2966136288c860abb580bb4f7ce9bd66b91989fe", kill_on_drop: false }`
[INFO] [stdout] f1bef3fc5e8e82d6dca4896e2966136288c860abb580bb4f7ce9bd66b91989fe
