[INFO] fetching crate ipc_ring 0.2.1... [INFO] testing ipc_ring-0.2.1 against beta-2026-04-21 for beta-1.96-1 [INFO] extracting crate ipc_ring 0.2.1 into /workspace/builds/worker-1-tc2/source [INFO] started tweaking crates.io crate ipc_ring 0.2.1 [INFO] removed 0 missing examples [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate ipc_ring 0.2.1 [INFO] tweaked toml for crates.io crate ipc_ring 0.2.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate ipc_ring 0.2.1 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 ipc_ring 0.2.1 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] b97835f7d1908472308a12720b6cc31104303bd70e01b02495c5685c972809c8 [INFO] running `Command { std: "docker" "start" "-a" "b97835f7d1908472308a12720b6cc31104303bd70e01b02495c5685c972809c8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b97835f7d1908472308a12720b6cc31104303bd70e01b02495c5685c972809c8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b97835f7d1908472308a12720b6cc31104303bd70e01b02495c5685c972809c8", kill_on_drop: false }` [INFO] [stdout] b97835f7d1908472308a12720b6cc31104303bd70e01b02495c5685c972809c8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 46b65d77ccaee5cde2d4025d4f0958e9acf90277b672d5b5479193f57ec736a0 [INFO] running `Command { std: "docker" "start" "-a" "46b65d77ccaee5cde2d4025d4f0958e9acf90277b672d5b5479193f57ec736a0", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.101 [INFO] [stderr] Compiling anstyle-query v1.1.4 [INFO] [stderr] Compiling libc v0.2.175 [INFO] [stderr] Compiling heck v0.5.0 [INFO] [stderr] Compiling anyhow v1.0.99 [INFO] [stderr] Compiling strsim v0.11.1 [INFO] [stderr] Compiling anstream v0.6.20 [INFO] [stderr] Compiling clap_builder v4.5.47 [INFO] [stderr] Compiling quote v1.0.40 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling memmap2 v0.9.8 [INFO] [stderr] Compiling clap_derive v4.5.47 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling thiserror v1.0.69 [INFO] [stderr] Compiling clap v4.5.47 [INFO] [stderr] Compiling ipc_ring v0.2.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.52s [INFO] running `Command { std: "docker" "inspect" "46b65d77ccaee5cde2d4025d4f0958e9acf90277b672d5b5479193f57ec736a0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "46b65d77ccaee5cde2d4025d4f0958e9acf90277b672d5b5479193f57ec736a0", kill_on_drop: false }` [INFO] [stdout] 46b65d77ccaee5cde2d4025d4f0958e9acf90277b672d5b5479193f57ec736a0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] b4f0606835481773aefd5d82414cb977be1e448c2ed91c91cd9e93f02c2bbebf [INFO] running `Command { std: "docker" "start" "-a" "b4f0606835481773aefd5d82414cb977be1e448c2ed91c91cd9e93f02c2bbebf", kill_on_drop: false }` [INFO] [stderr] Compiling ipc_ring v0.2.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.36s [INFO] running `Command { std: "docker" "inspect" "b4f0606835481773aefd5d82414cb977be1e448c2ed91c91cd9e93f02c2bbebf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b4f0606835481773aefd5d82414cb977be1e448c2ed91c91cd9e93f02c2bbebf", kill_on_drop: false }` [INFO] [stdout] b4f0606835481773aefd5d82414cb977be1e448c2ed91c91cd9e93f02c2bbebf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] e25ccfccad047ec26b36a62200705d7322d120cf2d7922dbbdc37df74818bb9a [INFO] running `Command { std: "docker" "start" "-a" "e25ccfccad047ec26b36a62200705d7322d120cf2d7922dbbdc37df74818bb9a", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ipc_ring-0abbe51db4834df1) [INFO] [stdout] [INFO] [stdout] running 21 tests [INFO] [stdout] test tests::test_fill_buffer ... ok [INFO] [stdout] test tests::test_create_ring ... ok [INFO] [stdout] test tests::test_try_push_full_due_to_wrap_space_check ... ok [INFO] [stdout] test tests::test_basic_push_pop ... ok [INFO] [stdout] test tests::test_wraparound ... ok [INFO] [stdout] test tests::test_try_pop_not_ready_returns_none ... ok [INFO] [stdout] test tests::test_write_payload_padding_wraps_across_end ... ok [INFO] [stdout] test tests::test_write_payload_wraps_data_across_end ... ok [INFO] [stdout] test tests::test_create_existing_ring_fails ... ok [INFO] [stdout] test tests::test_capacity_not_power_of_two_panics - should panic ... ok [INFO] [stdout] test tests::test_message_too_large ... ok [INFO] [stdout] test tests::test_capacity_power_of_two ... ok [INFO] [stdout] test tests::test_empty_pop_returns_none ... ok [INFO] [stdout] test tests::test_multiple_messages ... ok [INFO] [stdout] test tests::test_open_invalid_magic_layout_error ... ok [INFO] [stdout] test tests::test_open_nonexistent_ring_fails ... ok [INFO] [stdout] test tests::test_payload_max_u32_len ... ok [INFO] [stdout] test tests::test_push_propagates_non_full_error ... ok [INFO] [stdout] test tests::test_read_payload_wraps_across_end ... ok [INFO] [stdout] test tests::test_sequence_integrity ... ok [INFO] [stdout] test tests::test_payload_exceeds_max_msg_len ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.19s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/ipc_bench.rs (/opt/rustwide/target/debug/deps/ipc_bench-d3a41b5750197f13) [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] [stderr] Running tests/correctness_test.rs (/opt/rustwide/target/debug/deps/correctness_test-c09ec92d1bebc3b4) [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test test_wrap_marker_path_is_consumed ... ok [INFO] [stdout] test test_streaming_correctness_small_capacity ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.25s [INFO] [stdout] [INFO] [stderr] Running tests/debug_assert_cov.rs (/opt/rustwide/target/debug/deps/debug_assert_cov-f057c514acbc9378) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test test_try_push_hits_debug_assert_line ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running tests/failpoints.rs (/opt/rustwide/target/debug/deps/failpoints-63cb8d21a8838c67) [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] [stderr] Running tests/simple_stream.rs (/opt/rustwide/target/debug/deps/simple_stream-0af5513771dfe83d) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test reader_receives_stream_with_delays ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.01s [INFO] [stdout] [INFO] [stderr] Doc-tests ipc_ring [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" "e25ccfccad047ec26b36a62200705d7322d120cf2d7922dbbdc37df74818bb9a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e25ccfccad047ec26b36a62200705d7322d120cf2d7922dbbdc37df74818bb9a", kill_on_drop: false }` [INFO] [stdout] e25ccfccad047ec26b36a62200705d7322d120cf2d7922dbbdc37df74818bb9a