[INFO] fetching crate tree-node 0.0.1...
[INFO] testing tree-node-0.0.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate tree-node 0.0.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate tree-node 0.0.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tree-node 0.0.1
[INFO] tweaked toml for crates.io crate tree-node 0.0.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tree-node 0.0.1 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] 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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c69137abc6f5692ffce33fa7777438955f582365f2e3db668c370bc6cc5ca3f7
[INFO] running `Command { std: "docker" "start" "-a" "c69137abc6f5692ffce33fa7777438955f582365f2e3db668c370bc6cc5ca3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c69137abc6f5692ffce33fa7777438955f582365f2e3db668c370bc6cc5ca3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c69137abc6f5692ffce33fa7777438955f582365f2e3db668c370bc6cc5ca3f7", kill_on_drop: false }`
[INFO] [stdout] c69137abc6f5692ffce33fa7777438955f582365f2e3db668c370bc6cc5ca3f7
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75a65188909a91b6dbf26ddf21f278c8594d06efb675e2be7a6897f7875a6028
[INFO] running `Command { std: "docker" "start" "-a" "75a65188909a91b6dbf26ddf21f278c8594d06efb675e2be7a6897f7875a6028", kill_on_drop: false }`
[INFO] [stderr]    Compiling tree-node v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "75a65188909a91b6dbf26ddf21f278c8594d06efb675e2be7a6897f7875a6028", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75a65188909a91b6dbf26ddf21f278c8594d06efb675e2be7a6897f7875a6028", kill_on_drop: false }`
[INFO] [stdout] 75a65188909a91b6dbf26ddf21f278c8594d06efb675e2be7a6897f7875a6028
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad02ea2027604aab295ac50cee45f4a196cd2eb4b08ec7a6e482167d83fa7bea
[INFO] running `Command { std: "docker" "start" "-a" "ad02ea2027604aab295ac50cee45f4a196cd2eb4b08ec7a6e482167d83fa7bea", kill_on_drop: false }`
[INFO] [stderr]    Compiling tree-node v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "ad02ea2027604aab295ac50cee45f4a196cd2eb4b08ec7a6e482167d83fa7bea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad02ea2027604aab295ac50cee45f4a196cd2eb4b08ec7a6e482167d83fa7bea", kill_on_drop: false }`
[INFO] [stdout] ad02ea2027604aab295ac50cee45f4a196cd2eb4b08ec7a6e482167d83fa7bea
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c91fa713ddb4db418f0436fdf82d789850661667d5ad47c0b41dbd504daa1be6
[INFO] running `Command { std: "docker" "start" "-a" "c91fa713ddb4db418f0436fdf82d789850661667d5ad47c0b41dbd504daa1be6", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tree_node-a09c4d4572532048)
[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 tests/mod.rs (/opt/rustwide/target/debug/deps/mod-c6a212b422e5d933)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_tree ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tree_node
[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" "c91fa713ddb4db418f0436fdf82d789850661667d5ad47c0b41dbd504daa1be6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c91fa713ddb4db418f0436fdf82d789850661667d5ad47c0b41dbd504daa1be6", kill_on_drop: false }`
[INFO] [stdout] c91fa713ddb4db418f0436fdf82d789850661667d5ad47c0b41dbd504daa1be6