[INFO] fetching crate trie-root 0.18.0...
[INFO] testing trie-root-0.18.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate trie-root 0.18.0 into /workspace/builds/worker-4-tc1/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-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate trie-root 0.18.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44335d067f852e0b2900adf6aafa434ce1324b3335529233a4a579b1ffb2c153
[INFO] running `Command { std: "docker" "start" "-a" "44335d067f852e0b2900adf6aafa434ce1324b3335529233a4a579b1ffb2c153", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44335d067f852e0b2900adf6aafa434ce1324b3335529233a4a579b1ffb2c153", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44335d067f852e0b2900adf6aafa434ce1324b3335529233a4a579b1ffb2c153", kill_on_drop: false }`
[INFO] [stdout] 44335d067f852e0b2900adf6aafa434ce1324b3335529233a4a579b1ffb2c153
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5982ac8d115d88fc87dd134b25bc16f46351208a3e657e2d98598c4d3c31847f
[INFO] running `Command { std: "docker" "start" "-a" "5982ac8d115d88fc87dd134b25bc16f46351208a3e657e2d98598c4d3c31847f", 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 0.23s
[INFO] running `Command { std: "docker" "inspect" "5982ac8d115d88fc87dd134b25bc16f46351208a3e657e2d98598c4d3c31847f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5982ac8d115d88fc87dd134b25bc16f46351208a3e657e2d98598c4d3c31847f", kill_on_drop: false }`
[INFO] [stdout] 5982ac8d115d88fc87dd134b25bc16f46351208a3e657e2d98598c4d3c31847f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94ab01253eeb7af558f8d444ae33f44dee49e1707935b3c1955543662f9bf6f6
[INFO] running `Command { std: "docker" "start" "-a" "94ab01253eeb7af558f8d444ae33f44dee49e1707935b3c1955543662f9bf6f6", 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 0.53s
[INFO] running `Command { std: "docker" "inspect" "94ab01253eeb7af558f8d444ae33f44dee49e1707935b3c1955543662f9bf6f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94ab01253eeb7af558f8d444ae33f44dee49e1707935b3c1955543662f9bf6f6", kill_on_drop: false }`
[INFO] [stdout] 94ab01253eeb7af558f8d444ae33f44dee49e1707935b3c1955543662f9bf6f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2d47981703522f83d0c4641ff7fe8baeef95b32f44e199340cff23f876b42745
[INFO] running `Command { std: "docker" "start" "-a" "2d47981703522f83d0c4641ff7fe8baeef95b32f44e199340cff23f876b42745", 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-5001c1c8d53e2a5a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests trie_root
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "2d47981703522f83d0c4641ff7fe8baeef95b32f44e199340cff23f876b42745", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d47981703522f83d0c4641ff7fe8baeef95b32f44e199340cff23f876b42745", kill_on_drop: false }`
[INFO] [stdout] 2d47981703522f83d0c4641ff7fe8baeef95b32f44e199340cff23f876b42745