[INFO] fetching crate union-find 0.4.3...
[INFO] testing union-find-0.4.3 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate union-find 0.4.3 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate union-find 0.4.3
[INFO] finished tweaking crates.io crate union-find 0.4.3
[INFO] tweaked toml for crates.io crate union-find 0.4.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate union-find 0.4.3 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 72 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.5.1 (available: v0.7.0)
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] b104ec89c55d3f0ec6ed28a185da5f47e9dda76b884de70473e408dc850cc9b2
[INFO] running `Command { std: "docker" "start" "-a" "b104ec89c55d3f0ec6ed28a185da5f47e9dda76b884de70473e408dc850cc9b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b104ec89c55d3f0ec6ed28a185da5f47e9dda76b884de70473e408dc850cc9b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b104ec89c55d3f0ec6ed28a185da5f47e9dda76b884de70473e408dc850cc9b2", kill_on_drop: false }`
[INFO] [stdout] b104ec89c55d3f0ec6ed28a185da5f47e9dda76b884de70473e408dc850cc9b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e71e8d006912417d9554507e78a694ebdbe9f8cdf99e5d8fb33fc6f7ab764c86
[INFO] running `Command { std: "docker" "start" "-a" "e71e8d006912417d9554507e78a694ebdbe9f8cdf99e5d8fb33fc6f7ab764c86", kill_on_drop: false }`
[INFO] [stderr]    Compiling union-find v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "e71e8d006912417d9554507e78a694ebdbe9f8cdf99e5d8fb33fc6f7ab764c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e71e8d006912417d9554507e78a694ebdbe9f8cdf99e5d8fb33fc6f7ab764c86", kill_on_drop: false }`
[INFO] [stdout] e71e8d006912417d9554507e78a694ebdbe9f8cdf99e5d8fb33fc6f7ab764c86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] cfea6623c5c1d6d6ad1cbde39ceb773f9ba577437024e8eeb310decc2a5334ac
[INFO] running `Command { std: "docker" "start" "-a" "cfea6623c5c1d6d6ad1cbde39ceb773f9ba577437024e8eeb310decc2a5334ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling half v2.6.0
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling clap_builder v4.5.48
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling is-terminal v0.4.16
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling clap v4.5.48
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling union-find v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 24.78s
[INFO] running `Command { std: "docker" "inspect" "cfea6623c5c1d6d6ad1cbde39ceb773f9ba577437024e8eeb310decc2a5334ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfea6623c5c1d6d6ad1cbde39ceb773f9ba577437024e8eeb310decc2a5334ac", kill_on_drop: false }`
[INFO] [stdout] cfea6623c5c1d6d6ad1cbde39ceb773f9ba577437024e8eeb310decc2a5334ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 5b263d75fe91785b5e24ccea57b22de2ce4d7bdebd634ec150a59d1750a003f2
[INFO] running `Command { std: "docker" "start" "-a" "5b263d75fe91785b5e24ccea57b22de2ce4d7bdebd634ec150a59d1750a003f2", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/union_find-71d4ef0d53fdcd01)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::quick_union::union_find ... ok
[INFO] [stdout] test tests::quick_find::union_find ... 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] [stderr]    Doc-tests union_find
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 19) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5b263d75fe91785b5e24ccea57b22de2ce4d7bdebd634ec150a59d1750a003f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b263d75fe91785b5e24ccea57b22de2ce4d7bdebd634ec150a59d1750a003f2", kill_on_drop: false }`
[INFO] [stdout] 5b263d75fe91785b5e24ccea57b22de2ce4d7bdebd634ec150a59d1750a003f2