[INFO] fetching crate futures-test 0.3.8...
[INFO] testing futures-test-0.3.8 against 1.49.0 for beta-1.50-1
[INFO] extracting crate futures-test 0.3.8 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate futures-test 0.3.8 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-test 0.3.8
[INFO] finished tweaking crates.io crate futures-test 0.3.8
[INFO] tweaked toml for crates.io crate futures-test 0.3.8 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 153a4fcd35c0c7ebef4801d79a9409a7d1c041f8886a9a1e1ecdb0539e822471
[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" "153a4fcd35c0c7ebef4801d79a9409a7d1c041f8886a9a1e1ecdb0539e822471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "153a4fcd35c0c7ebef4801d79a9409a7d1c041f8886a9a1e1ecdb0539e822471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "153a4fcd35c0c7ebef4801d79a9409a7d1c041f8886a9a1e1ecdb0539e822471", kill_on_drop: false }`
[INFO] [stdout] 153a4fcd35c0c7ebef4801d79a9409a7d1c041f8886a9a1e1ecdb0539e822471
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 97b67ae4bc063d8e732ba27c9cf06c17dded4b0198660f0555c53fe23a48bc54
[INFO] running `Command { std: "docker" "start" "-a" "97b67ae4bc063d8e732ba27c9cf06c17dded4b0198660f0555c53fe23a48bc54", kill_on_drop: false }`
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling futures-test v0.3.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.01s
[INFO] running `Command { std: "docker" "inspect" "97b67ae4bc063d8e732ba27c9cf06c17dded4b0198660f0555c53fe23a48bc54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97b67ae4bc063d8e732ba27c9cf06c17dded4b0198660f0555c53fe23a48bc54", kill_on_drop: false }`
[INFO] [stdout] 97b67ae4bc063d8e732ba27c9cf06c17dded4b0198660f0555c53fe23a48bc54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fb9036378ff410efc6f09ad28b8fc482eac96104a64d77ff7169b3f216a75f0
[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" "7fb9036378ff410efc6f09ad28b8fc482eac96104a64d77ff7169b3f216a75f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling futures-test v0.3.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "7fb9036378ff410efc6f09ad28b8fc482eac96104a64d77ff7169b3f216a75f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fb9036378ff410efc6f09ad28b8fc482eac96104a64d77ff7169b3f216a75f0", kill_on_drop: false }`
[INFO] [stdout] 7fb9036378ff410efc6f09ad28b8fc482eac96104a64d77ff7169b3f216a75f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1bdc15024f24412ae2dc99162e497461146eddb480d95f13a5e6fb664bf62d7c
[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" "1bdc15024f24412ae2dc99162e497461146eddb480d95f13a5e6fb664bf62d7c", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 4 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/futures_test-3bcffdd9abf9a110
[INFO] [stdout] test assert_unmoved::tests::assert_send_sync ... ok
[INFO] [stdout] test assert_unmoved::tests::dont_panic_when_not_polled ... ok
[INFO] [stdout] test assert_unmoved::tests::dont_double_panic ... ok
[INFO] [stdout] test task::panic_waker::tests::issue_2091_cross_thread_segfault ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests futures-test
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test src/assert.rs - assert_stream_pending (line 11) ... ok
[INFO] [stdout] test src/io/read/mod.rs - io::read::AsyncReadTestExt::limited (line 95) ... ok
[INFO] [stdout] test src/assert.rs - assert_stream_done (line 89) ... ok
[INFO] [stdout] test src/future/mod.rs - future::FutureTestExt::pending_once (line 34) ... ok
[INFO] [stdout] test src/io/read/mod.rs - io::read::AsyncReadTestExt::interleave_pending (line 61) ... ok
[INFO] [stdout] test src/assert.rs - assert_stream_next (line 47) ... ok
[INFO] [stdout] test src/io/write/mod.rs - io::write::AsyncWriteTestExt::track_closed (line 121) ... ok
[INFO] [stdout] test src/io/write/mod.rs - io::write::AsyncWriteTestExt::interleave_pending_write (line 32) ... ok
[INFO] [stdout] test src/io/write/mod.rs - io::write::AsyncWriteTestExt::track_closed (line 105) ... ok
[INFO] [stdout] test src/io/read/mod.rs - io::read::AsyncReadTestExt::interleave_pending (line 31) ... ok
[INFO] [stdout] test src/future/mod.rs - future::FutureTestExt::interleave_pending (line 85) ... ok
[INFO] [stdout] test src/io/write/mod.rs - io::write::AsyncWriteTestExt::limited_write (line 72) ... ok
[INFO] [stdout] test src/sink/mod.rs - sink::SinkTestExt::track_closed (line 39) ... ok
[INFO] [stdout] test src/future/mod.rs - future::FutureTestExt::run_in_background (line 60) ... ok
[INFO] [stdout] test src/task/context.rs - task::context::noop_context (line 24) ... ok
[INFO] [stdout] test src/task/context.rs - task::context::panic_context (line 9) ... ok
[INFO] [stdout] test src/sink/mod.rs - sink::SinkTestExt::track_closed (line 61) ... ok
[INFO] [stdout] test src/task/panic_waker.rs - task::panic_waker::panic_waker (line 34) ... ok
[INFO] [stdout] test src/task/panic_waker.rs - task::panic_waker::panic_waker_ref (line 50) ... ok
[INFO] [stdout] test src/task/panic_spawner.rs - task::panic_spawner::PanicSpawner (line 8) ... ok
[INFO] [stdout] test src/task/wake_counter.rs - task::wake_counter::new_count_waker (line 44) ... ok
[INFO] [stdout] test src/stream/mod.rs - stream::StreamTestExt::interleave_pending (line 30) ... ok
[INFO] [stdout] test src/task/noop_spawner.rs - task::noop_spawner::noop_spawner_mut (line 43) ... ok
[INFO] [stdout] test src/task/record_spawner.rs - task::record_spawner::RecordSpawner (line 9) ... ok
[INFO] [stdout] test src/task/noop_spawner.rs - task::noop_spawner::NoopSpawner (line 8) ... ok
[INFO] [stdout] test src/task/panic_spawner.rs - task::panic_spawner::panic_spawner_mut (line 44) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1bdc15024f24412ae2dc99162e497461146eddb480d95f13a5e6fb664bf62d7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bdc15024f24412ae2dc99162e497461146eddb480d95f13a5e6fb664bf62d7c", kill_on_drop: false }`
[INFO] [stdout] 1bdc15024f24412ae2dc99162e497461146eddb480d95f13a5e6fb664bf62d7c