[INFO] fetching crate async_cell 0.1.0...
[INFO] testing async_cell-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate async_cell 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate async_cell 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async_cell 0.1.0
[INFO] finished tweaking crates.io crate async_cell 0.1.0
[INFO] tweaked toml for crates.io crate async_cell 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c0dadfce46362b19ba49808491d3fdb7e0bb297d2cebbb70f50602a67aa359b
[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" "1c0dadfce46362b19ba49808491d3fdb7e0bb297d2cebbb70f50602a67aa359b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c0dadfce46362b19ba49808491d3fdb7e0bb297d2cebbb70f50602a67aa359b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c0dadfce46362b19ba49808491d3fdb7e0bb297d2cebbb70f50602a67aa359b", kill_on_drop: false }`
[INFO] [stdout] 1c0dadfce46362b19ba49808491d3fdb7e0bb297d2cebbb70f50602a67aa359b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b98b70fc008ee8590328bb2f9ae024bd9f719d2235ba6a5cc5c82a7d1413e10f
[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" "b98b70fc008ee8590328bb2f9ae024bd9f719d2235ba6a5cc5c82a7d1413e10f", kill_on_drop: false }`
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling async_cell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.16s
[INFO] running `Command { std: "docker" "inspect" "b98b70fc008ee8590328bb2f9ae024bd9f719d2235ba6a5cc5c82a7d1413e10f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b98b70fc008ee8590328bb2f9ae024bd9f719d2235ba6a5cc5c82a7d1413e10f", kill_on_drop: false }`
[INFO] [stdout] b98b70fc008ee8590328bb2f9ae024bd9f719d2235ba6a5cc5c82a7d1413e10f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce6e760204b329be3c76c4501e51806885e72c7d5ca9593544d7cda69d54af99
[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" "ce6e760204b329be3c76c4501e51806885e72c7d5ca9593544d7cda69d54af99", kill_on_drop: false }`
[INFO] [stderr]    Compiling async_cell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.61s
[INFO] running `Command { std: "docker" "inspect" "ce6e760204b329be3c76c4501e51806885e72c7d5ca9593544d7cda69d54af99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce6e760204b329be3c76c4501e51806885e72c7d5ca9593544d7cda69d54af99", kill_on_drop: false }`
[INFO] [stdout] ce6e760204b329be3c76c4501e51806885e72c7d5ca9593544d7cda69d54af99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ce23a92d5e7b98d976d761bea7298fddf4a57977c1160b91f176159c9b304d79
[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" "ce23a92d5e7b98d976d761bea7298fddf4a57977c1160b91f176159c9b304d79", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/async_cell-a2c546d15754aa0c)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/basic.rs (/opt/rustwide/target/debug/deps/basic-ca52afde5a74382e)
[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] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test or_set ... ok
[INFO] [stdout] test update_changes ... ok
[INFO] [stdout] test update_wakes ... ok
[INFO] [stdout] test notify_wakes ... ok
[INFO] [stdout] test delayed_sequence ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.61s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/perf.rs (/opt/rustwide/target/debug/deps/perf-63c99e992e5ef6f5)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/utils.rs (/opt/rustwide/target/debug/deps/utils-5bfbe8e00fb1f053)
[INFO] [stdout] test size ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests async_cell
[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] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test src/lib.rs - sync::AsyncCell<T>::clear (line 501) ... ok
[INFO] [stdout] test src/lib.rs - (line 54) ... ok
[INFO] [stdout] test src/lib.rs - unsync::AsyncCell<T>::clear (line 542) ... ok
[INFO] [stdout] test src/lib.rs - sync::Take<C>::value (line 502) ... ok
[INFO] [stdout] test src/lib.rs - sync::Get<C>::value (line 502) ... ok
[INFO] [stdout] test src/lib.rs - sync::Get (line 475) ... ok
[INFO] [stdout] test src/lib.rs - unsync::AsyncCell<T>::get (line 548) ... ok
[INFO] [stdout] test src/lib.rs - (line 89) ... ok
[INFO] [stdout] test src/lib.rs - unsync::Get (line 529) ... ok
[INFO] [stdout] test src/lib.rs - (line 28) ... ok
[INFO] [stdout] test src/lib.rs - sync::Take (line 475) ... ok
[INFO] [stdout] test src/lib.rs - sync::AsyncCell<T>::take (line 503) ... ok
[INFO] [stdout] test src/lib.rs - sync::AsyncCell<T>::set (line 507) ... ok
[INFO] [stdout] test src/lib.rs - unsync::Take<C>::value (line 543) ... ok
[INFO] [stdout] test src/lib.rs - unsync::AsyncCell<T>::set (line 548) ... ok
[INFO] [stdout] test src/lib.rs - (line 12) ... ok
[INFO] [stdout] test src/lib.rs - sync::AsyncCell<T>::get (line 507) ... ok
[INFO] [stdout] test src/lib.rs - unsync::AsyncCell<T>::take (line 544) ... ok
[INFO] [stdout] test src/lib.rs - unsync::Take (line 529) ... ok
[INFO] [stdout] test src/lib.rs - unsync::Get<C>::value (line 543) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 6.89s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ce23a92d5e7b98d976d761bea7298fddf4a57977c1160b91f176159c9b304d79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce23a92d5e7b98d976d761bea7298fddf4a57977c1160b91f176159c9b304d79", kill_on_drop: false }`
[INFO] [stdout] ce23a92d5e7b98d976d761bea7298fddf4a57977c1160b91f176159c9b304d79