[INFO] fetching crate tapes 0.0.1...
[INFO] testing tapes-0.0.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate tapes 0.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate tapes 0.0.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tapes 0.0.1
[INFO] tweaked toml for crates.io crate tapes 0.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tapes 0.0.1 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 tapes 0.0.1 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 07595cef002b1aed6486af3721cb75483ccb36730ddf7755351563633ad5a744
[INFO] running `Command { std: "docker" "start" "-a" "07595cef002b1aed6486af3721cb75483ccb36730ddf7755351563633ad5a744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07595cef002b1aed6486af3721cb75483ccb36730ddf7755351563633ad5a744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07595cef002b1aed6486af3721cb75483ccb36730ddf7755351563633ad5a744", kill_on_drop: false }`
[INFO] [stdout] 07595cef002b1aed6486af3721cb75483ccb36730ddf7755351563633ad5a744
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ac1463525cd3e4d8ffa46b2ba7094111116b28a590f7918d59f4a38f60322c8d
[INFO] running `Command { std: "docker" "start" "-a" "ac1463525cd3e4d8ffa46b2ba7094111116b28a590f7918d59f4a38f60322c8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling memmap2 v0.9.9
[INFO] [stderr]    Compiling rcu-ring v0.0.1
[INFO] [stderr]    Compiling bytemuck v1.24.0
[INFO] [stderr]    Compiling tapes v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning[E0133]: call to unsafe function `std::slice::from_raw_parts_mut` is unsafe and requires unsafe block
[INFO] [stdout]   --> src/metadata.rs:93:21
[INFO] [stdout]    |
[INFO] [stdout] 93 |         let slice = slice::from_raw_parts_mut(memory.mut_ptr(), expected_len);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] note: an unsafe function restricts its caller, but its body is safe by default
[INFO] [stdout]   --> src/metadata.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 | /     pub(crate) unsafe fn open(
[INFO] [stdout] 85 | |         metadata_open_options: M::OpenOption,
[INFO] [stdout] 86 | |         tables: usize,
[INFO] [stdout] 87 | |         metadata_ring_len: usize,
[INFO] [stdout] 88 | |     ) -> io::Result<Self> {
[INFO] [stdout]    | |_________________________^
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout]    = note: `#[warn(unsafe_op_in_unsafe_fn)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0133`.
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "ac1463525cd3e4d8ffa46b2ba7094111116b28a590f7918d59f4a38f60322c8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac1463525cd3e4d8ffa46b2ba7094111116b28a590f7918d59f4a38f60322c8d", kill_on_drop: false }`
[INFO] [stdout] ac1463525cd3e4d8ffa46b2ba7094111116b28a590f7918d59f4a38f60322c8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 6f7f9f38b8a441e99b48b1539a9883671f2b8c23c2a2a4de09d5474c47b5cacb
[INFO] running `Command { std: "docker" "start" "-a" "6f7f9f38b8a441e99b48b1539a9883671f2b8c23c2a2a4de09d5474c47b5cacb", kill_on_drop: false }`
[INFO] [stderr]    Compiling tapes v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning[E0133]: call to unsafe function `std::slice::from_raw_parts_mut` is unsafe and requires unsafe block
[INFO] [stdout]   --> src/metadata.rs:93:21
[INFO] [stdout]    |
[INFO] [stdout] 93 |         let slice = slice::from_raw_parts_mut(memory.mut_ptr(), expected_len);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] note: an unsafe function restricts its caller, but its body is safe by default
[INFO] [stdout]   --> src/metadata.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 | /     pub(crate) unsafe fn open(
[INFO] [stdout] 85 | |         metadata_open_options: M::OpenOption,
[INFO] [stdout] 86 | |         tables: usize,
[INFO] [stdout] 87 | |         metadata_ring_len: usize,
[INFO] [stdout] 88 | |     ) -> io::Result<Self> {
[INFO] [stdout]    | |_________________________^
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout]    = note: `#[warn(unsafe_op_in_unsafe_fn)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0133`.
[INFO] [stdout] 
[INFO] [stdout] warning[E0133]: call to unsafe function `std::slice::from_raw_parts_mut` is unsafe and requires unsafe block
[INFO] [stdout]   --> src/metadata.rs:93:21
[INFO] [stdout]    |
[INFO] [stdout] 93 |         let slice = slice::from_raw_parts_mut(memory.mut_ptr(), expected_len);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] note: an unsafe function restricts its caller, but its body is safe by default
[INFO] [stdout]   --> src/metadata.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 | /     pub(crate) unsafe fn open(
[INFO] [stdout] 85 | |         metadata_open_options: M::OpenOption,
[INFO] [stdout] 86 | |         tables: usize,
[INFO] [stdout] 87 | |         metadata_ring_len: usize,
[INFO] [stdout] 88 | |     ) -> io::Result<Self> {
[INFO] [stdout]    | |_________________________^
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout]    = note: `#[warn(unsafe_op_in_unsafe_fn)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0133`.
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "6f7f9f38b8a441e99b48b1539a9883671f2b8c23c2a2a4de09d5474c47b5cacb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f7f9f38b8a441e99b48b1539a9883671f2b8c23c2a2a4de09d5474c47b5cacb", kill_on_drop: false }`
[INFO] [stdout] 6f7f9f38b8a441e99b48b1539a9883671f2b8c23c2a2a4de09d5474c47b5cacb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] eb0f9db25dea7885696b3ac47cf2b5d976907359bec3516954c07e5e7dad7e54
[INFO] running `Command { std: "docker" "start" "-a" "eb0f9db25dea7885696b3ac47cf2b5d976907359bec3516954c07e5e7dad7e54", kill_on_drop: false }`
[INFO] [stderr] warning[E0133]: call to unsafe function `std::slice::from_raw_parts_mut` is unsafe and requires unsafe block
[INFO] [stderr]   --> src/metadata.rs:93:21
[INFO] [stderr]    |
[INFO] [stderr] 93 |         let slice = slice::from_raw_parts_mut(memory.mut_ptr(), expected_len);
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stderr]    |
[INFO] [stderr]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stderr] note: an unsafe function restricts its caller, but its body is safe by default
[INFO] [stderr]   --> src/metadata.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 84 | /     pub(crate) unsafe fn open(
[INFO] [stderr] 85 | |         metadata_open_options: M::OpenOption,
[INFO] [stderr] 86 | |         tables: usize,
[INFO] [stderr] 87 | |         metadata_ring_len: usize,
[INFO] [stderr] 88 | |     ) -> io::Result<Self> {
[INFO] [stderr]    | |_________________________^
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stderr]    = note: `#[warn(unsafe_op_in_unsafe_fn)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0133`.
[INFO] [stderr] warning: `tapes` (lib) generated 1 warning (run `cargo fix --lib -p tapes` to apply 1 suggestion)
[INFO] [stderr] warning: `tapes` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tapes-877fc7167cfda68e)
[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.rs (/opt/rustwide/target/debug/deps/simple-f72e4976413f0202)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tapes
[INFO] [stdout] running 1 test
[INFO] [stdout] test write_read ... 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] [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" "eb0f9db25dea7885696b3ac47cf2b5d976907359bec3516954c07e5e7dad7e54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb0f9db25dea7885696b3ac47cf2b5d976907359bec3516954c07e5e7dad7e54", kill_on_drop: false }`
[INFO] [stdout] eb0f9db25dea7885696b3ac47cf2b5d976907359bec3516954c07e5e7dad7e54
