[INFO] fetching crate syncbuf 0.2.0...
[INFO] testing syncbuf-0.2.0 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate syncbuf 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate syncbuf 0.2.0 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70de3d9a9e2594abea3560375efc951407191154b25eb30ad4b7329d09ae6131
[INFO] running `Command { std: "docker" "start" "-a" "70de3d9a9e2594abea3560375efc951407191154b25eb30ad4b7329d09ae6131", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70de3d9a9e2594abea3560375efc951407191154b25eb30ad4b7329d09ae6131", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70de3d9a9e2594abea3560375efc951407191154b25eb30ad4b7329d09ae6131", kill_on_drop: false }`
[INFO] [stdout] 70de3d9a9e2594abea3560375efc951407191154b25eb30ad4b7329d09ae6131
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01d7c5b593a862ea70f07024d86d1de14040f8960a295b490acbcef4aae23601
[INFO] running `Command { std: "docker" "start" "-a" "01d7c5b593a862ea70f07024d86d1de14040f8960a295b490acbcef4aae23601", 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 [unoptimized + debuginfo] target(s) in 0.28s
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "01d7c5b593a862ea70f07024d86d1de14040f8960a295b490acbcef4aae23601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01d7c5b593a862ea70f07024d86d1de14040f8960a295b490acbcef4aae23601", kill_on_drop: false }`
[INFO] [stdout] 01d7c5b593a862ea70f07024d86d1de14040f8960a295b490acbcef4aae23601
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 465a3c3302b19fff1908d9de6318b6c290b5e8b10b8ea9276038a3e2db2659ab
[INFO] running `Command { std: "docker" "start" "-a" "465a3c3302b19fff1908d9de6318b6c290b5e8b10b8ea9276038a3e2db2659ab", kill_on_drop: false }`
[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] [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: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: 4 warnings emitted
[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] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "465a3c3302b19fff1908d9de6318b6c290b5e8b10b8ea9276038a3e2db2659ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "465a3c3302b19fff1908d9de6318b6c290b5e8b10b8ea9276038a3e2db2659ab", kill_on_drop: false }`
[INFO] [stdout] 465a3c3302b19fff1908d9de6318b6c290b5e8b10b8ea9276038a3e2db2659ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1d0e62f3800cccd3ded4902d3a40467ca3a9da5cb68a605e6c70b5081da064df
[INFO] running `Command { std: "docker" "start" "-a" "1d0e62f3800cccd3ded4902d3a40467ca3a9da5cb68a605e6c70b5081da064df", 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: 4 warnings emitted
[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: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: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/syncbuf-eec7136c34b39ca7)
[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::index - should panic ... ok
[INFO] [stdout] test syncbuf::tests::refs_not_invalidated ... 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] [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 32.58s
[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 0.32s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1d0e62f3800cccd3ded4902d3a40467ca3a9da5cb68a605e6c70b5081da064df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d0e62f3800cccd3ded4902d3a40467ca3a9da5cb68a605e6c70b5081da064df", kill_on_drop: false }`
[INFO] [stdout] 1d0e62f3800cccd3ded4902d3a40467ca3a9da5cb68a605e6c70b5081da064df