[INFO] fetching crate syncbuf 0.2.0...
[INFO] testing syncbuf-0.2.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate syncbuf 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate syncbuf 0.2.0
[INFO] finished tweaking crates.io crate syncbuf 0.2.0
[INFO] tweaked toml for crates.io crate syncbuf 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate syncbuf 0.2.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7eb173571d389fe9fa70c915a00b6ca89636789a6cbf0a02aa9339ff61dc64b
[INFO] running `Command { std: "docker" "start" "-a" "e7eb173571d389fe9fa70c915a00b6ca89636789a6cbf0a02aa9339ff61dc64b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7eb173571d389fe9fa70c915a00b6ca89636789a6cbf0a02aa9339ff61dc64b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7eb173571d389fe9fa70c915a00b6ca89636789a6cbf0a02aa9339ff61dc64b", kill_on_drop: false }`
[INFO] [stdout] e7eb173571d389fe9fa70c915a00b6ca89636789a6cbf0a02aa9339ff61dc64b
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfae5100d9330477f84d632af3d227ba5f46adeb5dd0969a16733249f0c9e41a
[INFO] running `Command { std: "docker" "start" "-a" "bfae5100d9330477f84d632af3d227ba5f46adeb5dd0969a16733249f0c9e41a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syncbuf v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]  --> src/syncbuf.rs:6:60
[INFO] [stdout]   |
[INFO] [stdout] 6 | use core::sync::atomic::{AtomicUsize, AtomicPtr, Ordering, spin_loop_hint};
[INFO] [stdout]   |                                                            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]   --> src/syncbuf.rs:90:27
[INFO] [stdout]    |
[INFO] [stdout] 90 |                 Err(_) => spin_loop_hint(),
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]  --> src/synclist.rs:2:49
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::sync::atomic::{AtomicUsize, Ordering, spin_loop_hint};
[INFO] [stdout]   |                                                 ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]   --> src/synclist.rs:92:25
[INFO] [stdout]    |
[INFO] [stdout] 92 |                 None => spin_loop_hint(),
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "bfae5100d9330477f84d632af3d227ba5f46adeb5dd0969a16733249f0c9e41a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfae5100d9330477f84d632af3d227ba5f46adeb5dd0969a16733249f0c9e41a", kill_on_drop: false }`
[INFO] [stdout] bfae5100d9330477f84d632af3d227ba5f46adeb5dd0969a16733249f0c9e41a
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5113c12d5a54a2d6a98f8fbe8ed20096c54bd5cebdf65a535c71e34d8789a19
[INFO] running `Command { std: "docker" "start" "-a" "d5113c12d5a54a2d6a98f8fbe8ed20096c54bd5cebdf65a535c71e34d8789a19", kill_on_drop: false }`
[INFO] [stderr]    Compiling syncbuf v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]  --> src/syncbuf.rs:6:60
[INFO] [stdout]   |
[INFO] [stdout] 6 | use core::sync::atomic::{AtomicUsize, AtomicPtr, Ordering, spin_loop_hint};
[INFO] [stdout]   |                                                            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]   --> src/syncbuf.rs:90:27
[INFO] [stdout]    |
[INFO] [stdout] 90 |                 Err(_) => spin_loop_hint(),
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]  --> src/synclist.rs:2:49
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::sync::atomic::{AtomicUsize, Ordering, spin_loop_hint};
[INFO] [stdout]   |                                                 ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]   --> src/synclist.rs:92:25
[INFO] [stdout]    |
[INFO] [stdout] 92 |                 None => spin_loop_hint(),
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]  --> src/syncbuf.rs:6:60
[INFO] [stdout]   |
[INFO] [stdout] 6 | use core::sync::atomic::{AtomicUsize, AtomicPtr, Ordering, spin_loop_hint};
[INFO] [stdout]   |                                                            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]   --> src/syncbuf.rs:90:27
[INFO] [stdout]    |
[INFO] [stdout] 90 |                 Err(_) => spin_loop_hint(),
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]  --> src/synclist.rs:2:49
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::sync::atomic::{AtomicUsize, Ordering, spin_loop_hint};
[INFO] [stdout]   |                                                 ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]   --> src/synclist.rs:92:25
[INFO] [stdout]    |
[INFO] [stdout] 92 |                 None => spin_loop_hint(),
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "d5113c12d5a54a2d6a98f8fbe8ed20096c54bd5cebdf65a535c71e34d8789a19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5113c12d5a54a2d6a98f8fbe8ed20096c54bd5cebdf65a535c71e34d8789a19", kill_on_drop: false }`
[INFO] [stdout] d5113c12d5a54a2d6a98f8fbe8ed20096c54bd5cebdf65a535c71e34d8789a19
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2ef6522b2271ae52d30c2543d8c78738eaa7502704555e81b189a088b00d6ef4
[INFO] running `Command { std: "docker" "start" "-a" "2ef6522b2271ae52d30c2543d8c78738eaa7502704555e81b189a088b00d6ef4", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stderr]  --> src/syncbuf.rs:6:60
[INFO] [stderr]   |
[INFO] [stderr] 6 | use core::sync::atomic::{AtomicUsize, AtomicPtr, Ordering, spin_loop_hint};
[INFO] [stderr]   |                                                            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stderr]   --> src/syncbuf.rs:90:27
[INFO] [stderr]    |
[INFO] [stderr] 90 |                 Err(_) => spin_loop_hint(),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stderr]  --> src/synclist.rs:2:49
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::sync::atomic::{AtomicUsize, Ordering, spin_loop_hint};
[INFO] [stderr]   |                                                 ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stderr]   --> src/synclist.rs:92:25
[INFO] [stderr]    |
[INFO] [stderr] 92 |                 None => spin_loop_hint(),
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `syncbuf` (lib) generated 4 warnings
[INFO] [stderr] warning: `syncbuf` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/syncbuf-274ff341bf4d35b8)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test syncbuf::tests::into_vec ... ok
[INFO] [stdout] test syncbuf::tests::from_vec ... ok
[INFO] [stdout] test syncbuf::tests::refs_not_invalidated ... ok
[INFO] [stdout] test syncbuf::tests::index - should panic ... ok
[INFO] [stdout] test synclist::tests::simple ... ok
[INFO] [stdout] test synclist::tests::refs_not_invalidated ... ok
[INFO] [stdout] test syncbuf::tests::push ... ok
[INFO] [stdout] test synclist::tests::index_fns ... ok
[INFO] [stdout] test synclist::tests::many_threads ... ok
[INFO] [stderr]    Doc-tests syncbuf
[INFO] [stdout] test syncbuf::tests::many_threads ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 33.21s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/syncbuf.rs - syncbuf::Syncbuf (line 13) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.37s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2ef6522b2271ae52d30c2543d8c78738eaa7502704555e81b189a088b00d6ef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ef6522b2271ae52d30c2543d8c78738eaa7502704555e81b189a088b00d6ef4", kill_on_drop: false }`
[INFO] [stdout] 2ef6522b2271ae52d30c2543d8c78738eaa7502704555e81b189a088b00d6ef4