[INFO] fetching crate futures-util 0.3.21...
[INFO] testing futures-util-0.3.21 against 1.60.0 for beta-1.61-1
[INFO] extracting crate futures-util 0.3.21 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate futures-util 0.3.21 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-util 0.3.21
[INFO] finished tweaking crates.io crate futures-util 0.3.21
[INFO] tweaked toml for crates.io crate futures-util 0.3.21 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65d5dc7b673739a1b8670ce854f2cfc88401c77d9c519d230c6de4753800d455
[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" "65d5dc7b673739a1b8670ce854f2cfc88401c77d9c519d230c6de4753800d455", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65d5dc7b673739a1b8670ce854f2cfc88401c77d9c519d230c6de4753800d455", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65d5dc7b673739a1b8670ce854f2cfc88401c77d9c519d230c6de4753800d455", kill_on_drop: false }`
[INFO] [stdout] 65d5dc7b673739a1b8670ce854f2cfc88401c77d9c519d230c6de4753800d455
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 447f8c23bc7a8c8476dd66a118c21caac0e8b202ee213566eb5ff2508d5a714d
[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" "447f8c23bc7a8c8476dd66a118c21caac0e8b202ee213566eb5ff2508d5a714d", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-util v0.3.21 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.82s
[INFO] running `Command { std: "docker" "inspect" "447f8c23bc7a8c8476dd66a118c21caac0e8b202ee213566eb5ff2508d5a714d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "447f8c23bc7a8c8476dd66a118c21caac0e8b202ee213566eb5ff2508d5a714d", kill_on_drop: false }`
[INFO] [stdout] 447f8c23bc7a8c8476dd66a118c21caac0e8b202ee213566eb5ff2508d5a714d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--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] 7fdc2868c322b99c21d8f712b59701b821e006b7f499ea16ae0f5f8eb05b4e15
[INFO] running `Command { std: "docker" "start" "-a" "7fdc2868c322b99c21d8f712b59701b821e006b7f499ea16ae0f5f8eb05b4e15", kill_on_drop: false }`
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling futures-util v0.3.21 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.60s
[INFO] running `Command { std: "docker" "inspect" "7fdc2868c322b99c21d8f712b59701b821e006b7f499ea16ae0f5f8eb05b4e15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fdc2868c322b99c21d8f712b59701b821e006b7f499ea16ae0f5f8eb05b4e15", kill_on_drop: false }`
[INFO] [stdout] 7fdc2868c322b99c21d8f712b59701b821e006b7f499ea16ae0f5f8eb05b4e15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", 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] 395c046a10e8f091b96b763fee21d6eccfc5e0cc7f154e0c9d1e878d6d4da4ad
[INFO] running `Command { std: "docker" "start" "-a" "395c046a10e8f091b96b763fee21d6eccfc5e0cc7f154e0c9d1e878d6d4da4ad", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/futures_util-02b55fdb16e3b23b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test lock::mutex::test_mutex_guard_debug_not_recurse ... 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 futures-util
[INFO] [stdout] 
[INFO] [stdout] running 149 tests
[INFO] [stdout] test src/async_await/select_mod.rs - async_await::select_mod::select (line 435) ... FAILED
[INFO] [stdout] test src/async_await/select_mod.rs - async_await::select_mod::select (line 358) ... FAILED
[INFO] [stdout] test src/async_await/select_mod.rs - async_await::select_mod::select_biased (line 343) ... FAILED
[INFO] [stdout] test src/async_await/select_mod.rs - async_await::select_mod::select (line 376) ... FAILED
[INFO] [stdout] test src/async_await/select_mod.rs - async_await::select_mod::select_biased (line 376) ... FAILED
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name futures_util --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-e4d3a2040637810a.rlib --extern futures_macro=/opt/rustwide/target/debug/deps/libfutures_macro-addc48fdda745dba.so --extern futures_task=/opt/rustwide/target/debug/deps/libfutures_task-ecde0fd8afc76364.rlib --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-af1036b065dc2912.rlib --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-df3b5486dcc1aa86.rlib --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-6c669315cfadfec5.rlib --extern slab=/opt/rustwide/target/debug/deps/libslab-ae59c7b6e0d36368.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-692a6d5d0824e0f6.rlib -C embed-bitcode=no --cfg 'feature="alloc"' --cfg 'feature="async-await"' --cfg 'feature="async-await-macro"' --cfg 'feature="default"' --cfg 'feature="futures-macro"' --cfg 'feature="slab"' --cfg 'feature="std"' --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "395c046a10e8f091b96b763fee21d6eccfc5e0cc7f154e0c9d1e878d6d4da4ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "395c046a10e8f091b96b763fee21d6eccfc5e0cc7f154e0c9d1e878d6d4da4ad", kill_on_drop: false }`
[INFO] [stdout] 395c046a10e8f091b96b763fee21d6eccfc5e0cc7f154e0c9d1e878d6d4da4ad