[INFO] fetching crate immutable-avl 1.0.0...
[INFO] testing immutable-avl-1.0.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate immutable-avl 1.0.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate immutable-avl 1.0.0
[INFO] finished tweaking crates.io crate immutable-avl 1.0.0
[INFO] tweaked toml for crates.io crate immutable-avl 1.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate immutable-avl 1.0.0 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] 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 60be423617103307bc43b35d2f543d13684576d7d70110fb60ab2a06cccd0367
[INFO] running `Command { std: "docker" "start" "-a" "60be423617103307bc43b35d2f543d13684576d7d70110fb60ab2a06cccd0367", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60be423617103307bc43b35d2f543d13684576d7d70110fb60ab2a06cccd0367", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60be423617103307bc43b35d2f543d13684576d7d70110fb60ab2a06cccd0367", kill_on_drop: false }`
[INFO] [stdout] 60be423617103307bc43b35d2f543d13684576d7d70110fb60ab2a06cccd0367
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] df18b105cf10424e8cdfaeadec647dc3caecb1da64e948ab49a5d93a70cc8867
[INFO] running `Command { std: "docker" "start" "-a" "df18b105cf10424e8cdfaeadec647dc3caecb1da64e948ab49a5d93a70cc8867", kill_on_drop: false }`
[INFO] [stderr]    Compiling immutable-avl v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "df18b105cf10424e8cdfaeadec647dc3caecb1da64e948ab49a5d93a70cc8867", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df18b105cf10424e8cdfaeadec647dc3caecb1da64e948ab49a5d93a70cc8867", kill_on_drop: false }`
[INFO] [stdout] df18b105cf10424e8cdfaeadec647dc3caecb1da64e948ab49a5d93a70cc8867
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] badecfd1d494dac51169cdf77417d9f3ce23ae9d1b4604e04f9d9ca3591cf4cb
[INFO] running `Command { std: "docker" "start" "-a" "badecfd1d494dac51169cdf77417d9f3ce23ae9d1b4604e04f9d9ca3591cf4cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling immutable-avl v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "badecfd1d494dac51169cdf77417d9f3ce23ae9d1b4604e04f9d9ca3591cf4cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "badecfd1d494dac51169cdf77417d9f3ce23ae9d1b4604e04f9d9ca3591cf4cb", kill_on_drop: false }`
[INFO] [stdout] badecfd1d494dac51169cdf77417d9f3ce23ae9d1b4604e04f9d9ca3591cf4cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 31e587956cb07d0cba445ef8b0221df91e47a44e51d866a193d873c9f005d9e4
[INFO] running `Command { std: "docker" "start" "-a" "31e587956cb07d0cba445ef8b0221df91e47a44e51d866a193d873c9f005d9e4", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/immutable_avl-6e42bf640b1f1e20)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test avl::tests::test_tree_node ... ok
[INFO] [stdout] test tests::test ... ok
[INFO] [stdout] test avl::tests::test_avl_tree ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests immutable_avl
[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" "31e587956cb07d0cba445ef8b0221df91e47a44e51d866a193d873c9f005d9e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31e587956cb07d0cba445ef8b0221df91e47a44e51d866a193d873c9f005d9e4", kill_on_drop: false }`
[INFO] [stdout] 31e587956cb07d0cba445ef8b0221df91e47a44e51d866a193d873c9f005d9e4