[INFO] fetching crate trie-root 0.18.0...
[INFO] testing trie-root-0.18.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate trie-root 0.18.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate trie-root 0.18.0
[INFO] finished tweaking crates.io crate trie-root 0.18.0
[INFO] tweaked toml for crates.io crate trie-root 0.18.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate trie-root 0.18.0 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 1 package to latest compatible version
[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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ca81bdfd86cea17bbceb5e03077275fa0d3045291ffc516fde6d33f5e3a59fc4
[INFO] running `Command { std: "docker" "start" "-a" "ca81bdfd86cea17bbceb5e03077275fa0d3045291ffc516fde6d33f5e3a59fc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca81bdfd86cea17bbceb5e03077275fa0d3045291ffc516fde6d33f5e3a59fc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca81bdfd86cea17bbceb5e03077275fa0d3045291ffc516fde6d33f5e3a59fc4", kill_on_drop: false }`
[INFO] [stdout] ca81bdfd86cea17bbceb5e03077275fa0d3045291ffc516fde6d33f5e3a59fc4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e296482153aa2a49ebe2fdc530e824bfcb9bfe43425a0bc83ee6fb0f82f46940
[INFO] running `Command { std: "docker" "start" "-a" "e296482153aa2a49ebe2fdc530e824bfcb9bfe43425a0bc83ee6fb0f82f46940", kill_on_drop: false }`
[INFO] [stderr]    Compiling hash-db v0.16.0
[INFO] [stderr]    Compiling trie-root v0.18.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `VecDeque`
[INFO] [stdout]   --> src/lib.rs:28:27
[INFO] [stdout]    |
[INFO] [stdout] 28 |         collections::{BTreeMap, VecDeque},
[INFO] [stdout]    |                                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "e296482153aa2a49ebe2fdc530e824bfcb9bfe43425a0bc83ee6fb0f82f46940", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e296482153aa2a49ebe2fdc530e824bfcb9bfe43425a0bc83ee6fb0f82f46940", kill_on_drop: false }`
[INFO] [stdout] e296482153aa2a49ebe2fdc530e824bfcb9bfe43425a0bc83ee6fb0f82f46940
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 44c437eceec1939e064ee6d20fd5028a806f6ba42a3f4f510a70dacbc0a1c17f
[INFO] running `Command { std: "docker" "start" "-a" "44c437eceec1939e064ee6d20fd5028a806f6ba42a3f4f510a70dacbc0a1c17f", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `VecDeque`
[INFO] [stdout]   --> src/lib.rs:28:27
[INFO] [stdout]    |
[INFO] [stdout] 28 |         collections::{BTreeMap, VecDeque},
[INFO] [stdout]    |                                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling trie-root v0.18.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `VecDeque`
[INFO] [stdout]   --> src/lib.rs:28:27
[INFO] [stdout]    |
[INFO] [stdout] 28 |         collections::{BTreeMap, VecDeque},
[INFO] [stdout]    |                                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "44c437eceec1939e064ee6d20fd5028a806f6ba42a3f4f510a70dacbc0a1c17f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44c437eceec1939e064ee6d20fd5028a806f6ba42a3f4f510a70dacbc0a1c17f", kill_on_drop: false }`
[INFO] [stdout] 44c437eceec1939e064ee6d20fd5028a806f6ba42a3f4f510a70dacbc0a1c17f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d2849e10ca23570a780f0cf0f08b1e1244dee045722a1717b0f70f974d9e5b8b
[INFO] running `Command { std: "docker" "start" "-a" "d2849e10ca23570a780f0cf0f08b1e1244dee045722a1717b0f70f974d9e5b8b", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `VecDeque`
[INFO] [stderr]   --> src/lib.rs:28:27
[INFO] [stderr]    |
[INFO] [stderr] 28 |         collections::{BTreeMap, VecDeque},
[INFO] [stderr]    |                                 ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `trie-root` (lib) generated 1 warning (run `cargo fix --lib -p trie-root` to apply 1 suggestion)
[INFO] [stderr] warning: `trie-root` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/trie_root-249f8310d1d3ea63)
[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 trie_root
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - sec_trie_root (line 250) ... ignored
[INFO] [stdout] test src/lib.rs - trie_root (line 108) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d2849e10ca23570a780f0cf0f08b1e1244dee045722a1717b0f70f974d9e5b8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2849e10ca23570a780f0cf0f08b1e1244dee045722a1717b0f70f974d9e5b8b", kill_on_drop: false }`
[INFO] [stdout] d2849e10ca23570a780f0cf0f08b1e1244dee045722a1717b0f70f974d9e5b8b