[INFO] fetching crate rbuffer 0.1.2...
[INFO] testing rbuffer-0.1.2 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rbuffer 0.1.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate rbuffer 0.1.2
[INFO] finished tweaking crates.io crate rbuffer 0.1.2
[INFO] tweaked toml for crates.io crate rbuffer 0.1.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rbuffer 0.1.2 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 rbuffer 0.1.2 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 86e0f254d9c98555cffd53c437e345f49161600c9436984352df9cc41dc9afa6
[INFO] running `Command { std: "docker" "start" "-a" "86e0f254d9c98555cffd53c437e345f49161600c9436984352df9cc41dc9afa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86e0f254d9c98555cffd53c437e345f49161600c9436984352df9cc41dc9afa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86e0f254d9c98555cffd53c437e345f49161600c9436984352df9cc41dc9afa6", kill_on_drop: false }`
[INFO] [stdout] 86e0f254d9c98555cffd53c437e345f49161600c9436984352df9cc41dc9afa6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 1961473655d3e146be68dcbbfee99d4a045b55c16ef80e275649b3ecd688f746
[INFO] running `Command { std: "docker" "start" "-a" "1961473655d3e146be68dcbbfee99d4a045b55c16ef80e275649b3ecd688f746", kill_on_drop: false }`
[INFO] [stderr]    Compiling rbuffer v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "1961473655d3e146be68dcbbfee99d4a045b55c16ef80e275649b3ecd688f746", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1961473655d3e146be68dcbbfee99d4a045b55c16ef80e275649b3ecd688f746", kill_on_drop: false }`
[INFO] [stdout] 1961473655d3e146be68dcbbfee99d4a045b55c16ef80e275649b3ecd688f746
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6dc49a934a0bc29af5b1e17d3a7a56914b0bd28e1521f867b87a7b5317f7fa2f
[INFO] running `Command { std: "docker" "start" "-a" "6dc49a934a0bc29af5b1e17d3a7a56914b0bd28e1521f867b87a7b5317f7fa2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling libc v0.2.182
[INFO] [stderr]    Compiling zerocopy v0.8.39
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling cc v1.2.56
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling itoa v1.0.17
[INFO] [stderr]    Compiling syn v2.0.116
[INFO] [stderr]    Compiling regex-syntax v0.8.9
[INFO] [stderr]    Compiling anstyle v1.0.13
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling clap_lex v1.0.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling clap_builder v4.5.59
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling alloca v0.4.0
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling criterion-plot v0.8.2
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling clap v4.5.59
[INFO] [stderr]    Compiling page_size v0.6.0
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling core_affinity v0.8.3
[INFO] [stderr]    Compiling zerocopy-derive v0.8.39
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling criterion v0.8.2
[INFO] [stderr]    Compiling rbuffer v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 57.41s
[INFO] running `Command { std: "docker" "inspect" "6dc49a934a0bc29af5b1e17d3a7a56914b0bd28e1521f867b87a7b5317f7fa2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dc49a934a0bc29af5b1e17d3a7a56914b0bd28e1521f867b87a7b5317f7fa2f", kill_on_drop: false }`
[INFO] [stdout] 6dc49a934a0bc29af5b1e17d3a7a56914b0bd28e1521f867b87a7b5317f7fa2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 9edd04b0c00de88efc9d64c3978a69a786ba90e2f4591169a35777cfd1128e8c
[INFO] running `Command { std: "docker" "start" "-a" "9edd04b0c00de88efc9d64c3978a69a786ba90e2f4591169a35777cfd1128e8c", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rbuffer-c86a78411023f098)
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test mpsc_rbuffer::producer::tests::rapid_producer_handle_churn ... ok
[INFO] [stdout] test mpsc_rbuffer::consumer::tests::push_until_full_then_pop_until_empty ... ok
[INFO] [stdout] test mpsc_rbuffer::consumer::tests::single_producer_single_consumer_basic_flow ... ok
[INFO] [stdout] test mpsc_rbuffer::rbuffer::tests::drop_with_remaining_elements_drops_exactly_once ... ok
[INFO] [stdout] test mpsc_rbuffer::producer::tests::blocked_push_completes_after_consumer_makes_space ... ok
[INFO] [stdout] test mpsc_rbuffer::rbuffer::tests::repeated_create_destroy_cycles_drop_all_values_once ... ok
[INFO] [stdout] test spsc_rbuffer::consumer::tests::dropping_producer_does_not_invalidate_consumer ... ok
[INFO] [stdout] test spsc_rbuffer::consumer::tests::read_from_empty_is_idempotent_and_keeps_internal_state ... ok
[INFO] [stdout] test spsc_rbuffer::producer::tests::free_space_refreshes_after_consumer_makes_room_from_full ... ok
[INFO] [stdout] test spsc_rbuffer::producer::tests::producer_capacity_and_free_space_without_consumer_progress ... ok
[INFO] [stdout] test spsc_rbuffer::producer::tests::producer_wraparound_preserves_fifo_across_many_cycles ... ok
[INFO] [stdout] test spsc_rbuffer::producer::tests::push_blocks_until_consumer_makes_space ... ok
[INFO] [stdout] test spsc_rbuffer::producer::tests::try_push_when_full_returns_original_value_and_preserves_indices ... ok
[INFO] [stdout] test mpsc_rbuffer::rbuffer::tests::new_panics_for_one_size - should panic ... ok
[INFO] [stdout] test mpsc_rbuffer::rbuffer::tests::new_panics_for_non_power_of_two_sizes - should panic ... ok
[INFO] [stdout] test mpsc_rbuffer::rbuffer::tests::new_panics_for_zero_size - should panic ... ok
[INFO] [stdout] test spsc_rbuffer::rbuffer::tests::new_panics_for_non_power_of_two_sizes - should panic ... ok
[INFO] [stdout] test spsc_rbuffer::rbuffer::tests::new_panics_for_one_size - should panic ... ok
[INFO] [stdout] test mpsc_rbuffer::rbuffer::tests::slot_reuse_across_many_cycles_large_capacity ... ok
[INFO] [stdout] test spsc_rbuffer::rbuffer::tests::panic_unwind_still_cleans_buffered_values ... ok
[INFO] [stdout] test spsc_rbuffer::rbuffer::tests::partially_read_values_are_not_double_dropped ... ok
[INFO] [stdout] test spsc_rbuffer::rbuffer::tests::sequential_resplit_stress_preserves_split_invariant ... ok
[INFO] [stdout] test spsc_rbuffer::rbuffer::tests::unread_values_are_dropped_exactly_once_on_buffer_drop ... ok
[INFO] [stdout] test spsc_rbuffer::rbuffer::tests::split_starts_from_current_live_indices_not_zero ... ok
[INFO] [stdout] test mpsc_rbuffer::rbuffer::tests::multi_producer_high_contention_no_loss_no_duplicates ... ok
[INFO] [stdout] test mpsc_rbuffer::rbuffer::tests::multi_producer_stress_repeated_runs ... ok
[INFO] [stderr]    Doc-tests rbuffer
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 15.43s
[INFO] [stdout] 
[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" "9edd04b0c00de88efc9d64c3978a69a786ba90e2f4591169a35777cfd1128e8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9edd04b0c00de88efc9d64c3978a69a786ba90e2f4591169a35777cfd1128e8c", kill_on_drop: false }`
[INFO] [stdout] 9edd04b0c00de88efc9d64c3978a69a786ba90e2f4591169a35777cfd1128e8c
