[INFO] fetching crate syncbuf 0.2.0...
[INFO] testing syncbuf-0.2.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate syncbuf 0.2.0 into /workspace/builds/worker-6-tc1/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-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate syncbuf 0.2.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9726f7fab73ce211512554074cd2e41c27fa8578df45c654eb2432296b99a776
[INFO] running `Command { std: "docker" "start" "-a" "9726f7fab73ce211512554074cd2e41c27fa8578df45c654eb2432296b99a776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9726f7fab73ce211512554074cd2e41c27fa8578df45c654eb2432296b99a776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9726f7fab73ce211512554074cd2e41c27fa8578df45c654eb2432296b99a776", kill_on_drop: false }`
[INFO] [stdout] 9726f7fab73ce211512554074cd2e41c27fa8578df45c654eb2432296b99a776
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aac4af7ae57dbdce2c1c2f4775d983ff8740d8d5ae31990903c0927ab13199e8
[INFO] running `Command { std: "docker" "start" "-a" "aac4af7ae57dbdce2c1c2f4775d983ff8740d8d5ae31990903c0927ab13199e8", 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 0.14s
[INFO] running `Command { std: "docker" "inspect" "aac4af7ae57dbdce2c1c2f4775d983ff8740d8d5ae31990903c0927ab13199e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aac4af7ae57dbdce2c1c2f4775d983ff8740d8d5ae31990903c0927ab13199e8", kill_on_drop: false }`
[INFO] [stdout] aac4af7ae57dbdce2c1c2f4775d983ff8740d8d5ae31990903c0927ab13199e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31880d6faad92e96a09e5c0eb039c087ec6124c85d9cb058dee9882ab0d2e7d7
[INFO] running `Command { std: "docker" "start" "-a" "31880d6faad92e96a09e5c0eb039c087ec6124c85d9cb058dee9882ab0d2e7d7", 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 0.63s
[INFO] running `Command { std: "docker" "inspect" "31880d6faad92e96a09e5c0eb039c087ec6124c85d9cb058dee9882ab0d2e7d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31880d6faad92e96a09e5c0eb039c087ec6124c85d9cb058dee9882ab0d2e7d7", kill_on_drop: false }`
[INFO] [stdout] 31880d6faad92e96a09e5c0eb039c087ec6124c85d9cb058dee9882ab0d2e7d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d9754147e9c82a82d7e376a12dc3f21f639b70aa443180beb3075a833f27ffc9
[INFO] running `Command { std: "docker" "start" "-a" "d9754147e9c82a82d7e376a12dc3f21f639b70aa443180beb3075a833f27ffc9", 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-454fb0d76a68d9ab)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test syncbuf::tests::from_vec ... ok
[INFO] [stdout] test syncbuf::tests::into_vec ... ok
[INFO] [stdout] test syncbuf::tests::refs_not_invalidated ... ok
[INFO] [stdout] test synclist::tests::refs_not_invalidated ... ok
[INFO] [stdout] test synclist::tests::simple ... ok
[INFO] [stdout] test syncbuf::tests::index - should panic ... 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] [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 37.73s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests syncbuf
[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 0.45s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d9754147e9c82a82d7e376a12dc3f21f639b70aa443180beb3075a833f27ffc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9754147e9c82a82d7e376a12dc3f21f639b70aa443180beb3075a833f27ffc9", kill_on_drop: false }`
[INFO] [stdout] d9754147e9c82a82d7e376a12dc3f21f639b70aa443180beb3075a833f27ffc9