[INFO] fetching crate pb-arena 0.1.3...
[INFO] testing pb-arena-0.1.3 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate pb-arena 0.1.3 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate pb-arena 0.1.3
[INFO] finished tweaking crates.io crate pb-arena 0.1.3
[INFO] tweaked toml for crates.io crate pb-arena 0.1.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pb-arena 0.1.3 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "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-2026-01-20" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f32a974beb7da13b03b9633e83b374c6e1740cfd8bc8b79baccfff863ab9d0e
[INFO] running `Command { std: "docker" "start" "-a" "1f32a974beb7da13b03b9633e83b374c6e1740cfd8bc8b79baccfff863ab9d0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f32a974beb7da13b03b9633e83b374c6e1740cfd8bc8b79baccfff863ab9d0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f32a974beb7da13b03b9633e83b374c6e1740cfd8bc8b79baccfff863ab9d0e", kill_on_drop: false }`
[INFO] [stdout] 1f32a974beb7da13b03b9633e83b374c6e1740cfd8bc8b79baccfff863ab9d0e
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5436125f0e0a1f20bc5289298c9a455f74c5ed5a2c128257aa03390e437573c8
[INFO] running `Command { std: "docker" "start" "-a" "5436125f0e0a1f20bc5289298c9a455f74c5ed5a2c128257aa03390e437573c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling pb-atomic-linked-list v0.1.6
[INFO] [stderr]    Compiling pb-atomic-hash-map v0.1.0
[INFO] [stderr]    Compiling pb-arena v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `prelude::AtomicLinkedList`
[INFO] [stdout]  --> src/sync/mod.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | use pb_atomic_linked_list::{prelude::AtomicLinkedList as _, AtomicLinkedList, AtomicQueue};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next_block` is never used
[INFO] [stdout]    --> src/lib.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 146 | impl ArenaId {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 153 |     fn next_block(&self) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "5436125f0e0a1f20bc5289298c9a455f74c5ed5a2c128257aa03390e437573c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5436125f0e0a1f20bc5289298c9a455f74c5ed5a2c128257aa03390e437573c8", kill_on_drop: false }`
[INFO] [stdout] 5436125f0e0a1f20bc5289298c9a455f74c5ed5a2c128257aa03390e437573c8
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59a1f46b127492847ea711b8075cf8eeee500430f4096e4269c36591b98e90cd
[INFO] running `Command { std: "docker" "start" "-a" "59a1f46b127492847ea711b8075cf8eeee500430f4096e4269c36591b98e90cd", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `prelude::AtomicLinkedList`
[INFO] [stdout]  --> src/sync/mod.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | use pb_atomic_linked_list::{prelude::AtomicLinkedList as _, AtomicLinkedList, AtomicQueue};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next_block` is never used
[INFO] [stdout]    --> src/lib.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 146 | impl ArenaId {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 153 |     fn next_block(&self) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling pb-arena v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `prelude::AtomicLinkedList`
[INFO] [stdout]  --> src/sync/mod.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | use pb_atomic_linked_list::{prelude::AtomicLinkedList as _, AtomicLinkedList, AtomicQueue};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next_block` is never used
[INFO] [stdout]    --> src/lib.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 146 | impl ArenaId {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 153 |     fn next_block(&self) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "59a1f46b127492847ea711b8075cf8eeee500430f4096e4269c36591b98e90cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59a1f46b127492847ea711b8075cf8eeee500430f4096e4269c36591b98e90cd", kill_on_drop: false }`
[INFO] [stdout] 59a1f46b127492847ea711b8075cf8eeee500430f4096e4269c36591b98e90cd
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c4be95449e75233698c78ae4158c29221f2d3778623af4d8cf4dceae8df6c9c4
[INFO] running `Command { std: "docker" "start" "-a" "c4be95449e75233698c78ae4158c29221f2d3778623af4d8cf4dceae8df6c9c4", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `prelude::AtomicLinkedList`
[INFO] [stderr]  --> src/sync/mod.rs:4:29
[INFO] [stderr]   |
[INFO] [stderr] 4 | use pb_atomic_linked_list::{prelude::AtomicLinkedList as _, AtomicLinkedList, AtomicQueue};
[INFO] [stderr]   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `next_block` is never used
[INFO] [stderr]    --> src/lib.rs:153:8
[INFO] [stderr]     |
[INFO] [stderr] 146 | impl ArenaId {
[INFO] [stderr]     | ------------ method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 153 |     fn next_block(&self) -> Self {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `pb-arena` (lib) generated 2 warnings
[INFO] [stderr] warning: `pb-arena` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/pb_arena-5633a7c6a3184c70)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::test_alloc ... ok
[INFO] [stdout] test tests::test_iter ... ok
[INFO] [stdout] test tests::test_cannot_mut_borrow_multiple_times ... ok
[INFO] [stdout] test tests::test_cannot_mut_borrow_if_already_borrowed ... ok
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/pb_arena-5633a7c6a3184c70` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "c4be95449e75233698c78ae4158c29221f2d3778623af4d8cf4dceae8df6c9c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4be95449e75233698c78ae4158c29221f2d3778623af4d8cf4dceae8df6c9c4", kill_on_drop: false }`
[INFO] [stdout] c4be95449e75233698c78ae4158c29221f2d3778623af4d8cf4dceae8df6c9c4
