[INFO] fetching crate once_spin 0.1.3...
[INFO] testing once_spin-0.1.3 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate once_spin 0.1.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate once_spin 0.1.3 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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-3/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82eb0aac7023ffa235f6a84e89261c9f244397a0b3b2692b9c5447b7302b9dbd
[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" "82eb0aac7023ffa235f6a84e89261c9f244397a0b3b2692b9c5447b7302b9dbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82eb0aac7023ffa235f6a84e89261c9f244397a0b3b2692b9c5447b7302b9dbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82eb0aac7023ffa235f6a84e89261c9f244397a0b3b2692b9c5447b7302b9dbd", kill_on_drop: false }`
[INFO] [stdout] 82eb0aac7023ffa235f6a84e89261c9f244397a0b3b2692b9c5447b7302b9dbd
[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=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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", 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] 63349e88a08cda79ddf7cb9f6fb579e41bfc8ee3f11dec5360de89f4ecac6c69
[INFO] running `Command { std: "docker" "start" "-a" "63349e88a08cda79ddf7cb9f6fb579e41bfc8ee3f11dec5360de89f4ecac6c69", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_spin v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "63349e88a08cda79ddf7cb9f6fb579e41bfc8ee3f11dec5360de89f4ecac6c69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63349e88a08cda79ddf7cb9f6fb579e41bfc8ee3f11dec5360de89f4ecac6c69", kill_on_drop: false }`
[INFO] [stdout] 63349e88a08cda79ddf7cb9f6fb579e41bfc8ee3f11dec5360de89f4ecac6c69
[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=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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afd9577cc0fe3822010d60940f38beee99be23633ff13e2c779cc2a8013ced24
[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" "afd9577cc0fe3822010d60940f38beee99be23633ff13e2c779cc2a8013ced24", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_spin v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.37s
[INFO] running `Command { std: "docker" "inspect" "afd9577cc0fe3822010d60940f38beee99be23633ff13e2c779cc2a8013ced24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afd9577cc0fe3822010d60940f38beee99be23633ff13e2c779cc2a8013ced24", kill_on_drop: false }`
[INFO] [stdout] afd9577cc0fe3822010d60940f38beee99be23633ff13e2c779cc2a8013ced24
[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=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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 16fdf1ff2cbe5c9d679972885b79043aa3d2dfec08912f201c4b659068080d4c
[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" "16fdf1ff2cbe5c9d679972885b79043aa3d2dfec08912f201c4b659068080d4c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/once_spin-6d4b9e7af1adac56
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/barrier-9bbc1a402696b3e9
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mutex-39ffcaf692cadd95
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test try_lock ... ok
[INFO] [stdout] test test_into_inner_drop ... ok
[INFO] [stdout] test test_mutex_unsized ... ok
[INFO] [stdout] test test_mutex_force_lock ... ok
[INFO] [stdout] test smoke ... ok
[INFO] [stdout] test test_into_inner ... ok
[INFO] [stdout] test test_mutex_arc_nested ... 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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/once-799694b522553d0d
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test smoke_once ... ok
[INFO] [stdout] test smoke_once_value ... ok
[INFO] [stdout] test wait ... ok
[INFO] [stdout] test try_no_wait ... ok
[INFO] [stdout] test try_get ... ok
[INFO] [stdout] test panic ... ok
[INFO] [stdout] test stampede_once ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rw_lock-aac25ccaf02d949e
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test test_force_read_decrement ... ok
[INFO] [stdout] test test_rwlock_unsized ... ok
[INFO] [stdout] test test_rw_try_read ... ok
[INFO] [stdout] test test_force_write_unlock ... ok
[INFO] [stdout] test test_rwlock_try_write ... ok
[INFO] [stdout] test test_into_inner ... ok
[INFO] [stdout] test smoke ... ok
[INFO] [stdout] test test_into_inner_drop ... ok
[INFO] [stdout] test test_upgrade_downgrade ... ok
[INFO] [stdout] test test_rw_access_in_unwind ... ok
[INFO] [stdout] test test_rw_arc ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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::BarrierWaitResult::is_leader (line 142) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex<T>::lock (line 122) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex (line 19) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock (line 44) ... 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>::get_mut (line 299) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::Barrier::new (line 64) ... 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>::try_read (line 112) ... 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>::try_write (line 220) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock<T>::read (line 152) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex (line 42) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::Barrier::wait (line 94) ... 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::RwLockUpgradeableGuard::downgrade (line 453) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLockUpgradeableGuard::upgrade (line 433) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::Barrier (line 9) ... 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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "16fdf1ff2cbe5c9d679972885b79043aa3d2dfec08912f201c4b659068080d4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16fdf1ff2cbe5c9d679972885b79043aa3d2dfec08912f201c4b659068080d4c", kill_on_drop: false }`
[INFO] [stdout] 16fdf1ff2cbe5c9d679972885b79043aa3d2dfec08912f201c4b659068080d4c