[INFO] fetching crate magic-buffer 0.1.1...
[INFO] testing magic-buffer-0.1.1 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate magic-buffer 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] removed /workspace/builds/worker-0-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate magic-buffer 0.1.1
[INFO] finished tweaking crates.io crate magic-buffer 0.1.1
[INFO] tweaked toml for crates.io crate magic-buffer 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate magic-buffer 0.1.1 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] [stderr]       Adding mach2 v0.4.3 (available: v0.5.0)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] [stderr]       Adding windows-sys v0.48.0 (available: v0.61.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47c056fc966143bf41a21f1f1a6084952b7ee197df56ac82bafc1d67ac847b13
[INFO] running `Command { std: "docker" "start" "-a" "47c056fc966143bf41a21f1f1a6084952b7ee197df56ac82bafc1d67ac847b13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47c056fc966143bf41a21f1f1a6084952b7ee197df56ac82bafc1d67ac847b13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47c056fc966143bf41a21f1f1a6084952b7ee197df56ac82bafc1d67ac847b13", kill_on_drop: false }`
[INFO] [stdout] 47c056fc966143bf41a21f1f1a6084952b7ee197df56ac82bafc1d67ac847b13
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5b77f4e9364a3d911a8893e66df56f02d009206ab5636b74df3ec964fe6f11b
[INFO] running `Command { std: "docker" "start" "-a" "b5b77f4e9364a3d911a8893e66df56f02d009206ab5636b74df3ec964fe6f11b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling magic-buffer v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "b5b77f4e9364a3d911a8893e66df56f02d009206ab5636b74df3ec964fe6f11b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5b77f4e9364a3d911a8893e66df56f02d009206ab5636b74df3ec964fe6f11b", kill_on_drop: false }`
[INFO] [stdout] b5b77f4e9364a3d911a8893e66df56f02d009206ab5636b74df3ec964fe6f11b
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7180a9c3bc4b761bba40f663b77b948da74d5a42b09988dbd352c790a2a0c38a
[INFO] running `Command { std: "docker" "start" "-a" "7180a9c3bc4b761bba40f663b77b948da74d5a42b09988dbd352c790a2a0c38a", kill_on_drop: false }`
[INFO] [stderr]    Compiling magic-buffer v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "7180a9c3bc4b761bba40f663b77b948da74d5a42b09988dbd352c790a2a0c38a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7180a9c3bc4b761bba40f663b77b948da74d5a42b09988dbd352c790a2a0c38a", kill_on_drop: false }`
[INFO] [stdout] 7180a9c3bc4b761bba40f663b77b948da74d5a42b09988dbd352c790a2a0c38a
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 96f01f96de9ef95459855fbfefd500d836db27e2551f203da9e50a25765fb428
[INFO] running `Command { std: "docker" "start" "-a" "96f01f96de9ef95459855fbfefd500d836db27e2551f203da9e50a25765fb428", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/magic_buffer-ffc27474452e93ea)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test tests::allocates_buffer ... ok
[INFO] [stdout] test tests::closed_range ... ok
[INFO] [stdout] test tests::closed_range_mut ... ok
[INFO] [stdout] test tests::deref_mut_as_slice ... ok
[INFO] [stdout] test tests::index_negative ... ok
[INFO] [stdout] test tests::range_to ... ok
[INFO] [stdout] test tests::range_full_mut ... ok
[INFO] [stdout] test tests::range_full ... ok
[INFO] [stdout] test tests::range_to_inclusive ... ok
[INFO] [stdout] test tests::range_from ... ok
[INFO] [stdout] test tests::range_from_mut ... ok
[INFO] [stdout] test tests::deref_as_slice ... ok
[INFO] [stdout] test tests::requires_aligned_len ... ok
[INFO] [stdout] test tests::requires_power_of_two ... ok
[INFO] [stdout] test tests::range_to_inclusive_mut ... ok
[INFO] [stdout] test tests::writes_are_visible_wrap_around ... ok
[INFO] [stdout] test tests::range_to_mut ... ok
[INFO] [stdout] test tests::index_wrap_around ... ok
[INFO] [stderr]    Doc-tests magic_buffer
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - MagicBuffer::new (line 90) ... ok
[INFO] [stdout] test src/lib.rs - MagicBuffer::as_ptr (line 149) ... ok
[INFO] [stdout] test src/lib.rs - (line 50) ... ok
[INFO] [stdout] test src/lib.rs - MagicBuffer (line 69) ... ok
[INFO] [stdout] test src/lib.rs - (line 63) ... ok
[INFO] [stdout] test src/lib.rs - MagicBuffer::as_mut_ptr (line 172) ... ok
[INFO] [stdout] test src/lib.rs - (line 34) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.77s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "96f01f96de9ef95459855fbfefd500d836db27e2551f203da9e50a25765fb428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96f01f96de9ef95459855fbfefd500d836db27e2551f203da9e50a25765fb428", kill_on_drop: false }`
[INFO] [stdout] 96f01f96de9ef95459855fbfefd500d836db27e2551f203da9e50a25765fb428