[INFO] fetching crate async-rwlock 1.3.1...
[INFO] testing async-rwlock-1.3.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate async-rwlock 1.3.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate async-rwlock 1.3.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate async-rwlock 1.3.1
[INFO] tweaked toml for crates.io crate async-rwlock 1.3.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate async-rwlock 1.3.1 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] crate crates.io crate async-rwlock 1.3.1 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded waker-fn v1.2.0
[INFO] [stderr]   Downloaded async-mutex v1.4.0
[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] 61da9c7a8f563fa3aa563b95e1c371a8e343ae46c9ebafd2b0fc4cf37e59a277
[INFO] running `Command { std: "docker" "start" "-a" "61da9c7a8f563fa3aa563b95e1c371a8e343ae46c9ebafd2b0fc4cf37e59a277", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61da9c7a8f563fa3aa563b95e1c371a8e343ae46c9ebafd2b0fc4cf37e59a277", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61da9c7a8f563fa3aa563b95e1c371a8e343ae46c9ebafd2b0fc4cf37e59a277", kill_on_drop: false }`
[INFO] [stdout] 61da9c7a8f563fa3aa563b95e1c371a8e343ae46c9ebafd2b0fc4cf37e59a277
[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] 524cdd9b08b95437092cc956637e4f8c2b02fd86c0de6d2435bb9aaf8045057a
[INFO] running `Command { std: "docker" "start" "-a" "524cdd9b08b95437092cc956637e4f8c2b02fd86c0de6d2435bb9aaf8045057a", kill_on_drop: false }`
[INFO] [stderr]    Compiling event-listener v2.5.3
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling async-rwlock v1.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/lib.rs:347:23
[INFO] [stdout]     |
[INFO] [stdout] 347 |         if self.state.compare_and_swap(0, WRITER_BIT, Ordering::AcqRel) == 0 {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/lib.rs:551:14
[INFO] [stdout]     |
[INFO] [stdout] 551 |             .compare_and_swap(ONE_READER, WRITER_BIT, Ordering::AcqRel)
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "524cdd9b08b95437092cc956637e4f8c2b02fd86c0de6d2435bb9aaf8045057a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "524cdd9b08b95437092cc956637e4f8c2b02fd86c0de6d2435bb9aaf8045057a", kill_on_drop: false }`
[INFO] [stdout] 524cdd9b08b95437092cc956637e4f8c2b02fd86c0de6d2435bb9aaf8045057a
[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] 4d79b62c30ec9d0bb4b99a2105cd9847da0a0d3164d67c7cb3ca026eb98ae700
[INFO] running `Command { std: "docker" "start" "-a" "4d79b62c30ec9d0bb4b99a2105cd9847da0a0d3164d67c7cb3ca026eb98ae700", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling waker-fn v1.2.0
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/lib.rs:347:23
[INFO] [stdout]     |
[INFO] [stdout] 347 |         if self.state.compare_and_swap(0, WRITER_BIT, Ordering::AcqRel) == 0 {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/lib.rs:551:14
[INFO] [stdout]     |
[INFO] [stdout] 551 |             .compare_and_swap(ONE_READER, WRITER_BIT, Ordering::AcqRel)
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling futures-lite v1.13.0
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling async-channel v1.9.0
[INFO] [stderr]    Compiling async-rwlock v1.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/lib.rs:347:23
[INFO] [stdout]     |
[INFO] [stdout] 347 |         if self.state.compare_and_swap(0, WRITER_BIT, Ordering::AcqRel) == 0 {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/lib.rs:551:14
[INFO] [stdout]     |
[INFO] [stdout] 551 |             .compare_and_swap(ONE_READER, WRITER_BIT, Ordering::AcqRel)
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused pinned boxed `Future` trait object that must be used
[INFO] [stdout]    --> tests/std.rs:91:9
[INFO] [stdout]     |
[INFO] [stdout]  91 | /         spawn(async move {
[INFO] [stdout]  92 | |             for _ in 0..M {
[INFO] [stdout]  93 | |                 if fastrand::u32(..N) == 0 {
[INFO] [stdout]  94 | |                     drop(rw.write().await);
[INFO] [stdout] ...   |
[INFO] [stdout]  99 | |             tx.send(()).await.unwrap();
[INFO] [stdout] 100 | |         });
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused pinned boxed `Future` trait object that must be used
[INFO] [stdout]    --> tests/std.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 | /     spawn({
[INFO] [stdout] 117 | |         let lock = lock.clone();
[INFO] [stdout] 118 | |         async move {
[INFO] [stdout] 119 | |             let mut lock = lock.write().await;
[INFO] [stdout] ...   |
[INFO] [stdout] 128 | |     });
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "4d79b62c30ec9d0bb4b99a2105cd9847da0a0d3164d67c7cb3ca026eb98ae700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d79b62c30ec9d0bb4b99a2105cd9847da0a0d3164d67c7cb3ca026eb98ae700", kill_on_drop: false }`
[INFO] [stdout] 4d79b62c30ec9d0bb4b99a2105cd9847da0a0d3164d67c7cb3ca026eb98ae700
[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] 6cce927907749200a884b1013da7a4b605ebe1d5a181e4477f4445b76f15f765
[INFO] running `Command { std: "docker" "start" "-a" "6cce927907749200a884b1013da7a4b605ebe1d5a181e4477f4445b76f15f765", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]    --> src/lib.rs:347:23
[INFO] [stderr]     |
[INFO] [stderr] 347 |         if self.state.compare_and_swap(0, WRITER_BIT, Ordering::AcqRel) == 0 {
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]    --> src/lib.rs:551:14
[INFO] [stderr]     |
[INFO] [stderr] 551 |             .compare_and_swap(ONE_READER, WRITER_BIT, Ordering::AcqRel)
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `async-rwlock` (lib) generated 2 warnings
[INFO] [stderr] warning: unused pinned boxed `Future` trait object that must be used
[INFO] [stderr]    --> tests/std.rs:91:9
[INFO] [stderr]     |
[INFO] [stderr]  91 | /         spawn(async move {
[INFO] [stderr]  92 | |             for _ in 0..M {
[INFO] [stderr]  93 | |                 if fastrand::u32(..N) == 0 {
[INFO] [stderr]  94 | |                     drop(rw.write().await);
[INFO] [stderr] ...   |
[INFO] [stderr]  99 | |             tx.send(()).await.unwrap();
[INFO] [stderr] 100 | |         });
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: futures do nothing unless you `.await` or poll them
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused pinned boxed `Future` trait object that must be used
[INFO] [stderr]    --> tests/std.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 116 | /     spawn({
[INFO] [stderr] 117 | |         let lock = lock.clone();
[INFO] [stderr] 118 | |         async move {
[INFO] [stderr] 119 | |             let mut lock = lock.write().await;
[INFO] [stderr] ...   |
[INFO] [stderr] 128 | |     });
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: futures do nothing unless you `.await` or poll them
[INFO] [stderr] 
[INFO] [stderr] warning: `async-rwlock` (test "std") generated 2 warnings
[INFO] [stderr] warning: `async-rwlock` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/async_rwlock-93a798713cd5b784)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/std.rs (/opt/rustwide/target/debug/deps/std-eb81e4fbe859a1ac)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test into_inner ... ok
[INFO] [stdout] test smoke ... ok
[INFO] [stdout] test get_mut ... ok
[INFO] [stdout] test into_inner_and_drop ... ok
[INFO] [stdout] test try_write ... ok
[INFO] [stdout] test writer_and_readers ... ok
[INFO] [stdout] test contention ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/upgradable.rs (/opt/rustwide/target/debug/deps/upgradable-816a1c9e88058b61)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test not_upgrade ... ok
[INFO] [stdout] test upgrade ... ok
[INFO] [stdout] test upgradable_with_concurrent_writer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests async_rwlock
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test src/lib.rs - RwLock<T>::new (line 76) ... ok
[INFO] [stdout] test src/lib.rs - RwLock<T>::try_upgradable_read (line 224) ... ok
[INFO] [stdout] test src/lib.rs - RwLock<T>::try_write (line 331) ... ok
[INFO] [stdout] test src/lib.rs - RwLock<T>::try_read (line 114) ... ok
[INFO] [stdout] test src/lib.rs - RwLock<T>::read (line 163) ... ok
[INFO] [stdout] test src/lib.rs - RwLock<T>::write (line 360) ... ok
[INFO] [stdout] test src/lib.rs - RwLockUpgradableReadGuard<'a,T>::try_upgrade (line 529) ... ok
[INFO] [stdout] test src/lib.rs - RwLock<T>::get_mut (line 400) ... ok
[INFO] [stdout] test src/lib.rs - RwLockWriteGuard<'a,T>::downgrade (line 649) ... ok
[INFO] [stdout] test src/lib.rs - RwLockWriteGuard<'a,T>::downgrade_to_upgradable (line 683) ... ok
[INFO] [stdout] test src/lib.rs - RwLock<T>::upgradable_read (line 280) ... ok
[INFO] [stdout] test src/lib.rs - RwLock (line 26) ... ok
[INFO] [stdout] test src/lib.rs - RwLock<T>::into_inner (line 95) ... ok
[INFO] [stdout] test src/lib.rs - RwLockUpgradableReadGuard<'a,T>::downgrade (line 500) ... ok
[INFO] [stdout] test src/lib.rs - RwLockUpgradableReadGuard<'a,T>::upgrade (line 564) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6cce927907749200a884b1013da7a4b605ebe1d5a181e4477f4445b76f15f765", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cce927907749200a884b1013da7a4b605ebe1d5a181e4477f4445b76f15f765", kill_on_drop: false }`
[INFO] [stdout] 6cce927907749200a884b1013da7a4b605ebe1d5a181e4477f4445b76f15f765
