[INFO] fetching crate async-lock 2.3.0...
[INFO] testing async-lock-2.3.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate async-lock 2.3.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate async-lock 2.3.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-lock 2.3.0
[INFO] finished tweaking crates.io crate async-lock 2.3.0
[INFO] tweaked toml for crates.io crate async-lock 2.3.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 362a29e6b2ba0bd90e3c4dc38fdd18db780a73493a395f165039c5f5f63670d0
[INFO] running `Command { std: "docker" "start" "-a" "362a29e6b2ba0bd90e3c4dc38fdd18db780a73493a395f165039c5f5f63670d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "362a29e6b2ba0bd90e3c4dc38fdd18db780a73493a395f165039c5f5f63670d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "362a29e6b2ba0bd90e3c4dc38fdd18db780a73493a395f165039c5f5f63670d0", kill_on_drop: false }`
[INFO] [stdout] 362a29e6b2ba0bd90e3c4dc38fdd18db780a73493a395f165039c5f5f63670d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8605af1a6c2b1548d4eb6a8b75f2b2b9202c9a6196fc895e06a2e9f78a692d3e
[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" "8605af1a6c2b1548d4eb6a8b75f2b2b9202c9a6196fc895e06a2e9f78a692d3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling async-lock v2.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "8605af1a6c2b1548d4eb6a8b75f2b2b9202c9a6196fc895e06a2e9f78a692d3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8605af1a6c2b1548d4eb6a8b75f2b2b9202c9a6196fc895e06a2e9f78a692d3e", kill_on_drop: false }`
[INFO] [stdout] 8605af1a6c2b1548d4eb6a8b75f2b2b9202c9a6196fc895e06a2e9f78a692d3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40a8151a62e4e64f5af0996e3dcb360d724ff4083ea4f0065513dc5ba7831281
[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" "40a8151a62e4e64f5af0996e3dcb360d724ff4083ea4f0065513dc5ba7831281", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-lite v1.11.1
[INFO] [stderr]    Compiling async-lock v2.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.60s
[INFO] running `Command { std: "docker" "inspect" "40a8151a62e4e64f5af0996e3dcb360d724ff4083ea4f0065513dc5ba7831281", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40a8151a62e4e64f5af0996e3dcb360d724ff4083ea4f0065513dc5ba7831281", kill_on_drop: false }`
[INFO] [stdout] 40a8151a62e4e64f5af0996e3dcb360d724ff4083ea4f0065513dc5ba7831281
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bd1500f68a5739c3600aced32415f276614a345d6353827dfc9f361d8db087d4
[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" "bd1500f68a5739c3600aced32415f276614a345d6353827dfc9f361d8db087d4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/async_lock-80c9ebddf3064ced
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/barrier-7492edcb62e5058d
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test smoke ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mutex-5e81b8e5ff68d113
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test into_inner ... ok
[INFO] [stdout] test smoke ... ok
[INFO] [stdout] test get_mut ... ok
[INFO] [stdout] test try_lock ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rwlock-05675bf134004367
[INFO] [stdout] test contention ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test try_write ... ok
[INFO] [stdout] test upgrade ... ok
[INFO] [stdout] test not_upgrade ... ok
[INFO] [stdout] test upgradable_with_concurrent_writer ... ok
[INFO] [stdout] test smoke ... ok
[INFO] [stdout] test into_inner ... ok
[INFO] [stdout] test into_inner_and_drop ... ok
[INFO] [stdout] test get_mut ... ok
[INFO] [stdout] test writer_and_readers ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/semaphore-1f76cb92df8b77e7
[INFO] [stdout] test contention ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test as_mutex ... ok
[INFO] [stdout] test try_acquire ... ok
[INFO] [stdout] test multi_resource ... ok
[INFO] [stderr]    Doc-tests async-lock
[INFO] [stdout] test stress ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 34 tests
[INFO] [stdout] test src/mutex.rs - mutex::Mutex<T>::try_lock_arc (line 277) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::Barrier::new (line 29) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex<T>::into_inner (line 73) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex (line 20) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex<T>::new (line 56) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::BarrierWaitResult::is_leader (line 119) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::MutexGuard::source (line 336) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex<T>::try_lock (line 205) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::BarrierWaitResult (line 101) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::Barrier::wait (line 54) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex<T>::get_mut (line 230) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::MutexGuardArc<T>::source (line 395) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex<T>::lock (line 91) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex<T>::lock_arc (line 251) ... ok
[INFO] [stdout] test src/rwlock.rs - rwlock::RwLock (line 24) ... ok
[INFO] [stdout] test src/rwlock.rs - rwlock::RwLock<T>::into_inner (line 93) ... ok
[INFO] [stdout] test src/rwlock.rs - rwlock::RwLock<T>::new (line 74) ... ok
[INFO] [stdout] test src/rwlock.rs - rwlock::RwLock<T>::get_mut (line 404) ... ok
[INFO] [stdout] test src/rwlock.rs - rwlock::RwLock<T>::try_read (line 112) ... ok
[INFO] [stdout] test src/rwlock.rs - rwlock::RwLock<T>::read (line 161) ... ok
[INFO] [stdout] test src/rwlock.rs - rwlock::RwLockUpgradableReadGuard::upgrade (line 571) ... ok
[INFO] [stdout] test src/semaphore.rs - semaphore::Semaphore::try_acquire_arc (line 106) ... ok
[INFO] [stdout] test src/semaphore.rs - semaphore::Semaphore::new (line 18) ... ok
[INFO] [stdout] test src/rwlock.rs - rwlock::RwLockWriteGuard::downgrade_to_upgradable (line 694) ... ok
[INFO] [stdout] test src/semaphore.rs - semaphore::Semaphore::acquire (line 74) ... ok
[INFO] [stdout] test src/rwlock.rs - rwlock::RwLock<T>::write (line 361) ... ok
[INFO] [stdout] test src/semaphore.rs - semaphore::Semaphore::acquire_arc (line 144) ... ok
[INFO] [stdout] test src/rwlock.rs - rwlock::RwLock<T>::try_write (line 329) ... ok
[INFO] [stdout] test src/rwlock.rs - rwlock::RwLockUpgradableReadGuard::downgrade (line 507) ... ok
[INFO] [stdout] test src/rwlock.rs - rwlock::RwLock<T>::upgradable_read (line 278) ... ok
[INFO] [stdout] test src/semaphore.rs - semaphore::Semaphore::try_acquire (line 37) ... ok
[INFO] [stdout] test src/rwlock.rs - rwlock::RwLockUpgradableReadGuard::try_upgrade (line 536) ... ok
[INFO] [stdout] test src/rwlock.rs - rwlock::RwLock<T>::try_upgradable_read (line 222) ... ok
[INFO] [stdout] test src/rwlock.rs - rwlock::RwLockWriteGuard::downgrade (line 656) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 34 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bd1500f68a5739c3600aced32415f276614a345d6353827dfc9f361d8db087d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd1500f68a5739c3600aced32415f276614a345d6353827dfc9f361d8db087d4", kill_on_drop: false }`
[INFO] [stdout] bd1500f68a5739c3600aced32415f276614a345d6353827dfc9f361d8db087d4
