[INFO] fetching crate tree-graphviz 0.2.0...
[INFO] testing tree-graphviz-0.2.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate tree-graphviz 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate tree-graphviz 0.2.0
[INFO] finished tweaking crates.io crate tree-graphviz 0.2.0
[INFO] tweaked toml for crates.io crate tree-graphviz 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tree-graphviz 0.2.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 884679a192877ef2a14654abb680b96a54856e906e78191b5d9ccdee7e1ccbeb
[INFO] running `Command { std: "docker" "start" "-a" "884679a192877ef2a14654abb680b96a54856e906e78191b5d9ccdee7e1ccbeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "884679a192877ef2a14654abb680b96a54856e906e78191b5d9ccdee7e1ccbeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "884679a192877ef2a14654abb680b96a54856e906e78191b5d9ccdee7e1ccbeb", kill_on_drop: false }`
[INFO] [stdout] 884679a192877ef2a14654abb680b96a54856e906e78191b5d9ccdee7e1ccbeb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb9be6558b6154b716eabdbe258c1fe76d5a2e990d88bd0a7d086a257911e93f
[INFO] running `Command { std: "docker" "start" "-a" "eb9be6558b6154b716eabdbe258c1fe76d5a2e990d88bd0a7d086a257911e93f", kill_on_drop: false }`
[INFO] [stderr]    Compiling tree-graphviz v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "eb9be6558b6154b716eabdbe258c1fe76d5a2e990d88bd0a7d086a257911e93f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb9be6558b6154b716eabdbe258c1fe76d5a2e990d88bd0a7d086a257911e93f", kill_on_drop: false }`
[INFO] [stdout] eb9be6558b6154b716eabdbe258c1fe76d5a2e990d88bd0a7d086a257911e93f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3bca9148eae6cdf3830918edf91eec3168e8e15eef75d9e256f2d000aa31b28c
[INFO] running `Command { std: "docker" "start" "-a" "3bca9148eae6cdf3830918edf91eec3168e8e15eef75d9e256f2d000aa31b28c", kill_on_drop: false }`
[INFO] [stderr]    Compiling tree-graphviz v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "3bca9148eae6cdf3830918edf91eec3168e8e15eef75d9e256f2d000aa31b28c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bca9148eae6cdf3830918edf91eec3168e8e15eef75d9e256f2d000aa31b28c", kill_on_drop: false }`
[INFO] [stdout] 3bca9148eae6cdf3830918edf91eec3168e8e15eef75d9e256f2d000aa31b28c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3f5aa8d893d2cc6d7b35462473a92b32cde962a06f7885617dc960516e7f9754
[INFO] running `Command { std: "docker" "start" "-a" "3f5aa8d893d2cc6d7b35462473a92b32cde962a06f7885617dc960516e7f9754", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tree_graphviz-ebf99103e0ddc22d)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests tree_graphviz
[INFO] [stdout] test tests::sync_correctness ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "3f5aa8d893d2cc6d7b35462473a92b32cde962a06f7885617dc960516e7f9754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f5aa8d893d2cc6d7b35462473a92b32cde962a06f7885617dc960516e7f9754", kill_on_drop: false }`
[INFO] [stdout] 3f5aa8d893d2cc6d7b35462473a92b32cde962a06f7885617dc960516e7f9754