[INFO] fetching crate disk-mpmc 0.4.2...
[INFO] testing disk-mpmc-0.4.2 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate disk-mpmc 0.4.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate disk-mpmc 0.4.2
[INFO] finished tweaking crates.io crate disk-mpmc 0.4.2
[INFO] tweaked toml for crates.io crate disk-mpmc 0.4.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate disk-mpmc 0.4.2 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 42 packages to latest compatible versions
[INFO] [stderr]       Adding const-str v0.5.7 (available: v1.0.0)
[INFO] [stderr]       Adding mmapcell v0.1.2 (available: v0.2.2)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[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-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8d0fe5d08db9ab5a2ffb20806f83a333f660d7cdc9c2595dd6832de56989d33
[INFO] running `Command { std: "docker" "start" "-a" "f8d0fe5d08db9ab5a2ffb20806f83a333f660d7cdc9c2595dd6832de56989d33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8d0fe5d08db9ab5a2ffb20806f83a333f660d7cdc9c2595dd6832de56989d33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8d0fe5d08db9ab5a2ffb20806f83a333f660d7cdc9c2595dd6832de56989d33", kill_on_drop: false }`
[INFO] [stdout] f8d0fe5d08db9ab5a2ffb20806f83a333f660d7cdc9c2595dd6832de56989d33
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad0e8556ac8eba1ec3f01ed0a328e72f11489ee0d0bf5fd4ddbcd72fe4e8b404
[INFO] running `Command { std: "docker" "start" "-a" "ad0e8556ac8eba1ec3f01ed0a328e72f11489ee0d0bf5fd4ddbcd72fe4e8b404", kill_on_drop: false }`
[INFO] [stderr]    Compiling const-str v0.5.7
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling memmap2 v0.9.9
[INFO] [stderr]    Compiling linux-futex v1.0.0
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling mmapcell v0.1.2
[INFO] [stderr]    Compiling disk-mpmc v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/manager.rs:44:46
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn load_total_page_count<P: AsRef<Path>>(path: P) {}
[INFO] [stdout]    |                                              ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `load_total_page_count` is never used
[INFO] [stdout]   --> src/manager.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl DataPagesManager {
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn load_total_page_count<P: AsRef<Path>>(path: P) {}
[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 10.26s
[INFO] running `Command { std: "docker" "inspect" "ad0e8556ac8eba1ec3f01ed0a328e72f11489ee0d0bf5fd4ddbcd72fe4e8b404", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad0e8556ac8eba1ec3f01ed0a328e72f11489ee0d0bf5fd4ddbcd72fe4e8b404", kill_on_drop: false }`
[INFO] [stdout] ad0e8556ac8eba1ec3f01ed0a328e72f11489ee0d0bf5fd4ddbcd72fe4e8b404
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81366bd9f4ef3cf53a458fcb99b103d532bb360c0c0f6db2cfb877714b9a6eef
[INFO] running `Command { std: "docker" "start" "-a" "81366bd9f4ef3cf53a458fcb99b103d532bb360c0c0f6db2cfb877714b9a6eef", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling nu-ansi-term v0.50.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling disk-mpmc v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/manager.rs:44:46
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn load_total_page_count<P: AsRef<Path>>(path: P) {}
[INFO] [stdout]    |                                              ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `load_total_page_count` is never used
[INFO] [stdout]   --> src/manager.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl DataPagesManager {
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn load_total_page_count<P: AsRef<Path>>(path: P) {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tracing-subscriber v0.3.22
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/manager.rs:44:46
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn load_total_page_count<P: AsRef<Path>>(path: P) {}
[INFO] [stdout]    |                                              ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `load_total_page_count` is never used
[INFO] [stdout]   --> src/manager.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl DataPagesManager {
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn load_total_page_count<P: AsRef<Path>>(path: P) {}
[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 6.70s
[INFO] running `Command { std: "docker" "inspect" "81366bd9f4ef3cf53a458fcb99b103d532bb360c0c0f6db2cfb877714b9a6eef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81366bd9f4ef3cf53a458fcb99b103d532bb360c0c0f6db2cfb877714b9a6eef", kill_on_drop: false }`
[INFO] [stdout] 81366bd9f4ef3cf53a458fcb99b103d532bb360c0c0f6db2cfb877714b9a6eef
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a794ba7a2df384178be572e2339a8bfae4537d2f7a7715587df3b301424c1e69
[INFO] running `Command { std: "docker" "start" "-a" "a794ba7a2df384178be572e2339a8bfae4537d2f7a7715587df3b301424c1e69", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/manager.rs:44:46
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn load_total_page_count<P: AsRef<Path>>(path: P) {}
[INFO] [stderr]    |                                              ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `load_total_page_count` is never used
[INFO] [stderr]   --> src/manager.rs:44:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | impl DataPagesManager {
[INFO] [stderr]    | --------------------- associated function in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 44 |     fn load_total_page_count<P: AsRef<Path>>(path: P) {}
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `disk-mpmc` (lib) generated 2 warnings (run `cargo fix --lib -p disk-mpmc` to apply 1 suggestion)
[INFO] [stderr] warning: `disk-mpmc` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/disk_mpmc-77f0783bf77348a8)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test::spsc_test ... FAILED
[INFO] [stdout] test test::sequential_test ... FAILED
[INFO] [stdout] test test::two_topics ... FAILED
[INFO] [stdout] test datapage::test::simple_test ... 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/disk_mpmc-77f0783bf77348a8` (signal: 7, SIGBUS: access to undefined memory)
[INFO] running `Command { std: "docker" "inspect" "a794ba7a2df384178be572e2339a8bfae4537d2f7a7715587df3b301424c1e69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a794ba7a2df384178be572e2339a8bfae4537d2f7a7715587df3b301424c1e69", kill_on_drop: false }`
[INFO] [stdout] a794ba7a2df384178be572e2339a8bfae4537d2f7a7715587df3b301424c1e69
