[INFO] fetching crate r2u2_core 4.1.0...
[INFO] testing r2u2_core-4.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate r2u2_core 4.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] removed /workspace/builds/worker-2-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate r2u2_core 4.1.0
[INFO] finished tweaking crates.io crate r2u2_core 4.1.0
[INFO] tweaked toml for crates.io crate r2u2_core 4.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate r2u2_core 4.1.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate r2u2_core 4.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 070687c2c53d8af93eee5b0aae887f098e439739ee8606f837d6f62c579006ac
[INFO] running `Command { std: "docker" "start" "-a" "070687c2c53d8af93eee5b0aae887f098e439739ee8606f837d6f62c579006ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "070687c2c53d8af93eee5b0aae887f098e439739ee8606f837d6f62c579006ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "070687c2c53d8af93eee5b0aae887f098e439739ee8606f837d6f62c579006ac", kill_on_drop: false }`
[INFO] [stdout] 070687c2c53d8af93eee5b0aae887f098e439739ee8606f837d6f62c579006ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 315ec7c977ec5c2944393f5edc4343646786cf370dae7921f12467a8991fcbfa
[INFO] running `Command { std: "docker" "start" "-a" "315ec7c977ec5c2944393f5edc4343646786cf370dae7921f12467a8991fcbfa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling verus_prettyplease v0.0.0-2025-08-12-1837
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling vstd v0.0.0-2025-08-12-1837
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling verus_builtin v0.0.0-2025-08-12-1837
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling verus_syn v0.0.0-2025-08-12-1837
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling const_env_impl v0.1.2
[INFO] [stderr]    Compiling const_env v0.1.2
[INFO] [stderr]    Compiling verus_state_machines_macros v0.0.0-2025-08-12-1837
[INFO] [stderr]    Compiling verus_builtin_macros v0.0.0-2025-08-12-1837
[INFO] [stderr]    Compiling r2u2_core v4.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.97s
[INFO] running `Command { std: "docker" "inspect" "315ec7c977ec5c2944393f5edc4343646786cf370dae7921f12467a8991fcbfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "315ec7c977ec5c2944393f5edc4343646786cf370dae7921f12467a8991fcbfa", kill_on_drop: false }`
[INFO] [stdout] 315ec7c977ec5c2944393f5edc4343646786cf370dae7921f12467a8991fcbfa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0d35d9a9f3f3e7fed7148042401a43f82e5e333192ec61642aae545f5d376d1
[INFO] running `Command { std: "docker" "start" "-a" "a0d35d9a9f3f3e7fed7148042401a43f82e5e333192ec61642aae545f5d376d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling r2u2_core v4.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "a0d35d9a9f3f3e7fed7148042401a43f82e5e333192ec61642aae545f5d376d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0d35d9a9f3f3e7fed7148042401a43f82e5e333192ec61642aae545f5d376d1", kill_on_drop: false }`
[INFO] [stdout] a0d35d9a9f3f3e7fed7148042401a43f82e5e333192ec61642aae545f5d376d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5836616da48c800bccfde3f18126759fb2660a09c7298dc1650e245989a33dd9
[INFO] running `Command { std: "docker" "start" "-a" "5836616da48c800bccfde3f18126759fb2660a09c7298dc1650e245989a33dd9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/r2u2_core-12599528b1945ec3)
[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" "5836616da48c800bccfde3f18126759fb2660a09c7298dc1650e245989a33dd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5836616da48c800bccfde3f18126759fb2660a09c7298dc1650e245989a33dd9", kill_on_drop: false }`
[INFO] [stdout] 5836616da48c800bccfde3f18126759fb2660a09c7298dc1650e245989a33dd9
