[INFO] fetching crate n_best 0.1.0...
[INFO] testing n_best-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate n_best 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate n_best 0.1.0
[INFO] finished tweaking crates.io crate n_best 0.1.0
[INFO] tweaked toml for crates.io crate n_best 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate n_best 0.1.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-2025-10-28" "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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec21009feab4dff95d5d99087c299548eb979604b59cebedd4dcb2e034b2fe2a
[INFO] running `Command { std: "docker" "start" "-a" "ec21009feab4dff95d5d99087c299548eb979604b59cebedd4dcb2e034b2fe2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec21009feab4dff95d5d99087c299548eb979604b59cebedd4dcb2e034b2fe2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec21009feab4dff95d5d99087c299548eb979604b59cebedd4dcb2e034b2fe2a", kill_on_drop: false }`
[INFO] [stdout] ec21009feab4dff95d5d99087c299548eb979604b59cebedd4dcb2e034b2fe2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3887dbafba8ccbb50572ec5a32bd197ed22b9c5e31043b025e4995d2462824c
[INFO] running `Command { std: "docker" "start" "-a" "f3887dbafba8ccbb50572ec5a32bd197ed22b9c5e31043b025e4995d2462824c", kill_on_drop: false }`
[INFO] [stderr]    Compiling ord_by v0.1.1
[INFO] [stderr]    Compiling n_best v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "f3887dbafba8ccbb50572ec5a32bd197ed22b9c5e31043b025e4995d2462824c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3887dbafba8ccbb50572ec5a32bd197ed22b9c5e31043b025e4995d2462824c", kill_on_drop: false }`
[INFO] [stdout] f3887dbafba8ccbb50572ec5a32bd197ed22b9c5e31043b025e4995d2462824c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d00d5dbc0bec5333fcc060c6ab50224b941eb6468caceff66506838ab101b9d7
[INFO] running `Command { std: "docker" "start" "-a" "d00d5dbc0bec5333fcc060c6ab50224b941eb6468caceff66506838ab101b9d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling n_best v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "d00d5dbc0bec5333fcc060c6ab50224b941eb6468caceff66506838ab101b9d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d00d5dbc0bec5333fcc060c6ab50224b941eb6468caceff66506838ab101b9d7", kill_on_drop: false }`
[INFO] [stdout] d00d5dbc0bec5333fcc060c6ab50224b941eb6468caceff66506838ab101b9d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 71270d4e24659e6e86468fff98a6335cd0fde510d56d93f4e0e6620aaa624da0
[INFO] running `Command { std: "docker" "start" "-a" "71270d4e24659e6e86468fff98a6335cd0fde510d56d93f4e0e6620aaa624da0", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/n_best-8fa9d3285fbc8c25)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_ord ... ok
[INFO] [stderr]    Doc-tests n_best
[INFO] [stdout] test test_cmp_fn ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.40s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "71270d4e24659e6e86468fff98a6335cd0fde510d56d93f4e0e6620aaa624da0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71270d4e24659e6e86468fff98a6335cd0fde510d56d93f4e0e6620aaa624da0", kill_on_drop: false }`
[INFO] [stdout] 71270d4e24659e6e86468fff98a6335cd0fde510d56d93f4e0e6620aaa624da0