[INFO] fetching crate once_spin 0.1.3...
[INFO] testing once_spin-0.1.3 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate once_spin 0.1.3 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate once_spin 0.1.3 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate once_spin 0.1.3
[INFO] finished tweaking crates.io crate once_spin 0.1.3
[INFO] tweaked toml for crates.io crate once_spin 0.1.3 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate once_spin 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da40273c2e56d9ab9388de9e3c261dc44f50325d45d9fd7e29329211e47c84ce
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "da40273c2e56d9ab9388de9e3c261dc44f50325d45d9fd7e29329211e47c84ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da40273c2e56d9ab9388de9e3c261dc44f50325d45d9fd7e29329211e47c84ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da40273c2e56d9ab9388de9e3c261dc44f50325d45d9fd7e29329211e47c84ce", kill_on_drop: false }`
[INFO] [stdout] da40273c2e56d9ab9388de9e3c261dc44f50325d45d9fd7e29329211e47c84ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a7dbfa6d6d76b602fb2cc5c2982bad583c60f3f186734b3144ee63a99ddda19
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9a7dbfa6d6d76b602fb2cc5c2982bad583c60f3f186734b3144ee63a99ddda19", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_spin v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mutex.rs:110:25
[INFO] [stdout]     |
[INFO] [stdout] 110 |         while self.lock.compare_and_swap(false, true, Ordering::Acquire) {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mutex.rs:156:22
[INFO] [stdout]     |
[INFO] [stdout] 156 |         if self.lock.compare_and_swap(false, true, Ordering::Acquire) {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/once.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |                 .compare_and_swap(INCOMPLETE, RUNNING, Ordering::SeqCst);
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "9a7dbfa6d6d76b602fb2cc5c2982bad583c60f3f186734b3144ee63a99ddda19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a7dbfa6d6d76b602fb2cc5c2982bad583c60f3f186734b3144ee63a99ddda19", kill_on_drop: false }`
[INFO] [stdout] 9a7dbfa6d6d76b602fb2cc5c2982bad583c60f3f186734b3144ee63a99ddda19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15aeb896f5a24ee383ea0d512324f84700208a368cf096e6d75d41923a773363
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "15aeb896f5a24ee383ea0d512324f84700208a368cf096e6d75d41923a773363", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mutex.rs:110:25
[INFO] [stdout]     |
[INFO] [stdout] 110 |         while self.lock.compare_and_swap(false, true, Ordering::Acquire) {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling once_spin v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mutex.rs:156:22
[INFO] [stdout]     |
[INFO] [stdout] 156 |         if self.lock.compare_and_swap(false, true, Ordering::Acquire) {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/once.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |                 .compare_and_swap(INCOMPLETE, RUNNING, Ordering::SeqCst);
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mutex.rs:110:25
[INFO] [stdout]     |
[INFO] [stdout] 110 |         while self.lock.compare_and_swap(false, true, Ordering::Acquire) {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mutex.rs:156:22
[INFO] [stdout]     |
[INFO] [stdout] 156 |         if self.lock.compare_and_swap(false, true, Ordering::Acquire) {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/once.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |                 .compare_and_swap(INCOMPLETE, RUNNING, Ordering::SeqCst);
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "15aeb896f5a24ee383ea0d512324f84700208a368cf096e6d75d41923a773363", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15aeb896f5a24ee383ea0d512324f84700208a368cf096e6d75d41923a773363", kill_on_drop: false }`
[INFO] [stdout] 15aeb896f5a24ee383ea0d512324f84700208a368cf096e6d75d41923a773363
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a2e1b01644dff0164f11f1280cc2a8b9876cbfbeae7d1080926f355ddca34d24
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a2e1b01644dff0164f11f1280cc2a8b9876cbfbeae7d1080926f355ddca34d24", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated associated function `core::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]    --> src/mutex.rs:110:25
[INFO] [stderr]     |
[INFO] [stderr] 110 |         while self.lock.compare_and_swap(false, true, Ordering::Acquire) {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]    --> src/mutex.rs:156:22
[INFO] [stderr]     |
[INFO] [stderr] 156 |         if self.lock.compare_and_swap(false, true, Ordering::Acquire) {
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]   --> src/once.rs:87:18
[INFO] [stderr]    |
[INFO] [stderr] 87 |                 .compare_and_swap(INCOMPLETE, RUNNING, Ordering::SeqCst);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]    --> src/mutex.rs:110:25
[INFO] [stderr]     |
[INFO] [stderr] 110 |         while self.lock.compare_and_swap(false, true, Ordering::Acquire) {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]    --> src/mutex.rs:156:22
[INFO] [stderr]     |
[INFO] [stderr] 156 |         if self.lock.compare_and_swap(false, true, Ordering::Acquire) {
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]   --> src/once.rs:87:18
[INFO] [stderr]    |
[INFO] [stderr] 87 |                 .compare_and_swap(INCOMPLETE, RUNNING, Ordering::SeqCst);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/once_spin-78c9a46be8d0eeed
[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 /opt/rustwide/target/debug/deps/barrier-6766c22ad71a0aa4
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_barrier ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mutex-85b7fb96e1c96eca
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test smoke ... ok
[INFO] [stdout] test test_into_inner ... ok
[INFO] [stdout] test test_into_inner_drop ... ok
[INFO] [stdout] test test_mutex_force_lock ... ok
[INFO] [stdout] test test_mutex_unsized ... ok
[INFO] [stdout] test test_mutex_arc_nested ... ok
[INFO] [stdout] test try_lock ... ok
[INFO] [stdout] test lots_and_lots ... ok
[INFO] [stdout] test test_mutex_arc_access_in_unwind ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/once-24099ccaf0d8db2a
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test smoke_once ... ok
[INFO] [stdout] test smoke_once_value ... ok
[INFO] [stdout] test try_get ... ok
[INFO] [stdout] test try_no_wait ... ok
[INFO] [stdout] test wait ... ok
[INFO] [stdout] test stampede_once ... ok
[INFO] [stdout] test panic ... 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 /opt/rustwide/target/debug/deps/rw_lock-7a9f2fdd02b65e64
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test smoke ... ok
[INFO] [stdout] test test_force_read_decrement ... ok
[INFO] [stdout] test test_force_write_unlock ... ok
[INFO] [stdout] test test_into_inner ... ok
[INFO] [stdout] test test_into_inner_drop ... ok
[INFO] [stdout] test test_rw_try_read ... ok
[INFO] [stdout] test test_rwlock_try_write ... ok
[INFO] [stdout] test test_rwlock_unsized ... ok
[INFO] [stdout] test test_upgrade_downgrade ... ok
[INFO] [stdout] test test_rw_arc ... ok
[INFO] [stdout] test test_rw_access_in_unwind ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests once_spin
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test src/once.rs - once::Once<T>::call_once (line 64) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex<T>::new (line 83) ... ok
[INFO] [stdout] test src/once.rs - once::Once (line 20) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::BarrierWaitResult (line 46) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::Barrier::new (line 64) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock<T>::new (line 77) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock<T>::get_mut (line 299) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::BarrierWaitResult::is_leader (line 142) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex (line 19) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex<T>::get_mut (line 173) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock<T>::read (line 152) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex<T>::lock (line 122) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock (line 44) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLockUpgradeableGuard::try_upgrade (line 416) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock<T>::write (line 248) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock<T>::try_read (line 112) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock<T>::try_write (line 220) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex (line 42) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::Barrier (line 9) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::Barrier::wait (line 94) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLockUpgradeableGuard::upgrade (line 433) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLockUpgradeableGuard::downgrade (line 453) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLockWriteGuard::downgrade (line 478) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.88s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a2e1b01644dff0164f11f1280cc2a8b9876cbfbeae7d1080926f355ddca34d24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2e1b01644dff0164f11f1280cc2a8b9876cbfbeae7d1080926f355ddca34d24", kill_on_drop: false }`
[INFO] [stdout] a2e1b01644dff0164f11f1280cc2a8b9876cbfbeae7d1080926f355ddca34d24