[INFO] fetching crate buf_read_write 0.5.0...
[INFO] testing buf_read_write-0.5.0 against beta-2026-03-05 for beta-1.95-1
[INFO] extracting crate buf_read_write 0.5.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate buf_read_write 0.5.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate buf_read_write 0.5.0
[INFO] tweaked toml for crates.io crate buf_read_write 0.5.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate buf_read_write 0.5.0 on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate buf_read_write 0.5.0 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-2026-03-05" "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-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47c8f8242b4c19a62dbb12905058d5cb0562c8028912bda4847deea8ada0c03f
[INFO] running `Command { std: "docker" "start" "-a" "47c8f8242b4c19a62dbb12905058d5cb0562c8028912bda4847deea8ada0c03f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47c8f8242b4c19a62dbb12905058d5cb0562c8028912bda4847deea8ada0c03f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47c8f8242b4c19a62dbb12905058d5cb0562c8028912bda4847deea8ada0c03f", kill_on_drop: false }`
[INFO] [stdout] 47c8f8242b4c19a62dbb12905058d5cb0562c8028912bda4847deea8ada0c03f
[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-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7dd245eaef50162fb0c1d92fe80c328807829cc478cdf574a398364072e7c12b
[INFO] running `Command { std: "docker" "start" "-a" "7dd245eaef50162fb0c1d92fe80c328807829cc478cdf574a398364072e7c12b", kill_on_drop: false }`
[INFO] [stderr]    Compiling buf_read_write v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "7dd245eaef50162fb0c1d92fe80c328807829cc478cdf574a398364072e7c12b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dd245eaef50162fb0c1d92fe80c328807829cc478cdf574a398364072e7c12b", kill_on_drop: false }`
[INFO] [stdout] 7dd245eaef50162fb0c1d92fe80c328807829cc478cdf574a398364072e7c12b
[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-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 071e55a96740340b82b008e0809102f62ba29ef80219177212c28ea21839456c
[INFO] running `Command { std: "docker" "start" "-a" "071e55a96740340b82b008e0809102f62ba29ef80219177212c28ea21839456c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.133
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling mutants v0.0.3
[INFO] [stderr]    Compiling is-terminal v0.4.13
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling serde_derive v1.0.216
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling serde v1.0.216
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling buf_read_write v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 20.24s
[INFO] running `Command { std: "docker" "inspect" "071e55a96740340b82b008e0809102f62ba29ef80219177212c28ea21839456c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "071e55a96740340b82b008e0809102f62ba29ef80219177212c28ea21839456c", kill_on_drop: false }`
[INFO] [stdout] 071e55a96740340b82b008e0809102f62ba29ef80219177212c28ea21839456c
[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-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7bb20da6af5727b7877590f171bfcadd3a782c2dd3724f2e1492674296f471c8
[INFO] running `Command { std: "docker" "start" "-a" "7bb20da6af5727b7877590f171bfcadd3a782c2dd3724f2e1492674296f471c8", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/buf_read_write-672b8f61e3f1dd6e)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test tests::can_seek_far_beyond_end ... ok
[INFO] [stdout] test tests::can_seek_and_write_just_beyond_end ... ok
[INFO] [stdout] test tests::big_read_followed_by_small_write_doesnt_write_everything ... ok
[INFO] [stdout] test tests::drop_implies_flush ... ok
[INFO] [stdout] test tests::exhaustive_regress ... ok
[INFO] [stdout] test tests::can_write_beyond_end ... ok
[INFO] [stdout] test tests::reads_are_buffered ... ok
[INFO] [stdout] test tests::writes_are_buffered ... ok
[INFO] [stdout] test tests::test_dirty_buffer_beyond_u64_max ... ok
[INFO] [stdout] test tests::test_extreme_size_handling ... ok
[INFO] [stdout] test tests::writes_are_buffered_after_seek ... ok
[INFO] [stdout] test tests::reading_does_not_cause_writes ... ok
[INFO] [stdout] test tests::stream_position_is_reloaded ... ok
[INFO] [stdout] test tests::seek_plus_read_will_still_use_buffer ... ok
[INFO] [stdout] test tests::regression ... ok
[INFO] [stdout] test tests::exhaustive ... 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/buf_read_write-672b8f61e3f1dd6e` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "7bb20da6af5727b7877590f171bfcadd3a782c2dd3724f2e1492674296f471c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bb20da6af5727b7877590f171bfcadd3a782c2dd3724f2e1492674296f471c8", kill_on_drop: false }`
[INFO] [stdout] 7bb20da6af5727b7877590f171bfcadd3a782c2dd3724f2e1492674296f471c8
