[INFO] fetching crate r2u2_core 4.1.0...
[INFO] testing r2u2_core-4.1.0 against 1.95.0 for beta-1.96-2
[INFO] extracting crate r2u2_core 4.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] removed /workspace/builds/worker-2-tc1/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-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate r2u2_core 4.1.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded verus_builtin v0.0.0-2025-08-12-1837
[INFO] [stderr]   Downloaded nb v0.1.3
[INFO] [stderr]   Downloaded nb v1.1.0
[INFO] [stderr]   Downloaded const_env_impl v0.1.2
[INFO] [stderr]   Downloaded volatile-register v0.2.2
[INFO] [stderr]   Downloaded cortex-m-semihosting v0.5.0
[INFO] [stderr]   Downloaded libc-print v0.1.23
[INFO] [stderr]   Downloaded const_env v0.1.2
[INFO] [stderr]   Downloaded bitfield v0.13.2
[INFO] [stderr]   Downloaded embedded-hal v0.2.7
[INFO] [stderr]   Downloaded bare-metal v0.2.5
[INFO] [stderr]   Downloaded vcell v0.1.3
[INFO] [stderr]   Downloaded verus_prettyplease v0.0.0-2025-08-12-1837
[INFO] [stderr]   Downloaded verus_builtin_macros v0.0.0-2025-08-12-1837
[INFO] [stderr]   Downloaded verus_state_machines_macros v0.0.0-2025-08-12-1837
[INFO] [stderr]   Downloaded cortex-m v0.7.7
[INFO] [stderr]   Downloaded vstd v0.0.0-2025-08-12-1837
[INFO] [stderr]   Downloaded syn v2.0.108
[INFO] [stderr]   Downloaded verus_syn v0.0.0-2025-08-12-1837
[INFO] [stderr]   Downloaded fixedstr v0.5.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6fa11c90e5041cd82ae318a8e1249982b34ea3b22f1bca9bf9cd7bfd2e62381
[INFO] running `Command { std: "docker" "start" "-a" "e6fa11c90e5041cd82ae318a8e1249982b34ea3b22f1bca9bf9cd7bfd2e62381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6fa11c90e5041cd82ae318a8e1249982b34ea3b22f1bca9bf9cd7bfd2e62381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6fa11c90e5041cd82ae318a8e1249982b34ea3b22f1bca9bf9cd7bfd2e62381", kill_on_drop: false }`
[INFO] [stdout] e6fa11c90e5041cd82ae318a8e1249982b34ea3b22f1bca9bf9cd7bfd2e62381
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88ac22cecae7c552b08f88854b017010835a44027b2bdfd58e0a85433b87f42a
[INFO] running `Command { std: "docker" "start" "-a" "88ac22cecae7c552b08f88854b017010835a44027b2bdfd58e0a85433b87f42a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling verus_prettyplease v0.0.0-2025-08-12-1837
[INFO] [stderr]    Compiling syn v1.0.109
[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 const_env_impl v0.1.2
[INFO] [stderr]    Compiling const_env v0.1.2
[INFO] [stderr]    Compiling synstructure v0.13.2
[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 34.59s
[INFO] running `Command { std: "docker" "inspect" "88ac22cecae7c552b08f88854b017010835a44027b2bdfd58e0a85433b87f42a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88ac22cecae7c552b08f88854b017010835a44027b2bdfd58e0a85433b87f42a", kill_on_drop: false }`
[INFO] [stdout] 88ac22cecae7c552b08f88854b017010835a44027b2bdfd58e0a85433b87f42a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 817a56c3fe0855b46fa6fbdf4a46bf09e920af5896ed2ba6f1078f84a9173a62
[INFO] running `Command { std: "docker" "start" "-a" "817a56c3fe0855b46fa6fbdf4a46bf09e920af5896ed2ba6f1078f84a9173a62", 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 0.56s
[INFO] running `Command { std: "docker" "inspect" "817a56c3fe0855b46fa6fbdf4a46bf09e920af5896ed2ba6f1078f84a9173a62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "817a56c3fe0855b46fa6fbdf4a46bf09e920af5896ed2ba6f1078f84a9173a62", kill_on_drop: false }`
[INFO] [stdout] 817a56c3fe0855b46fa6fbdf4a46bf09e920af5896ed2ba6f1078f84a9173a62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b2086761b018c437b22f31fd61ca8ebd323bc071dcf7893cde949b726defeb30
[INFO] running `Command { std: "docker" "start" "-a" "b2086761b018c437b22f31fd61ca8ebd323bc071dcf7893cde949b726defeb30", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/r2u2_core-81299f044f6a45bc)
[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" "b2086761b018c437b22f31fd61ca8ebd323bc071dcf7893cde949b726defeb30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2086761b018c437b22f31fd61ca8ebd323bc071dcf7893cde949b726defeb30", kill_on_drop: false }`
[INFO] [stdout] b2086761b018c437b22f31fd61ca8ebd323bc071dcf7893cde949b726defeb30
