[INFO] fetching crate tokio-by-hand 0.0.0...
[INFO] checking tokio-by-hand-0.0.0 against beta for pr-78714
[INFO] extracting crate tokio-by-hand 0.0.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate tokio-by-hand 0.0.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tokio-by-hand 0.0.0
[INFO] finished tweaking crates.io crate tokio-by-hand 0.0.0
[INFO] tweaked toml for crates.io crate tokio-by-hand 0.0.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+beta" "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] 821ad74cb99140e5acdcdff03c96f99ff5d0fc1c9654fc13cb9b8ebe78bd7450
[INFO] running `Command { std: "docker" "start" "-a" "821ad74cb99140e5acdcdff03c96f99ff5d0fc1c9654fc13cb9b8ebe78bd7450", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "821ad74cb99140e5acdcdff03c96f99ff5d0fc1c9654fc13cb9b8ebe78bd7450", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "821ad74cb99140e5acdcdff03c96f99ff5d0fc1c9654fc13cb9b8ebe78bd7450", kill_on_drop: false }`
[INFO] [stdout] 821ad74cb99140e5acdcdff03c96f99ff5d0fc1c9654fc13cb9b8ebe78bd7450
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--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] fe039af12e99e9f13d278895847f923514d363b905ee2e9617fbf5fbddd597d1
[INFO] running `Command { std: "docker" "start" "-a" "fe039af12e99e9f13d278895847f923514d363b905ee2e9617fbf5fbddd597d1", kill_on_drop: false }`
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking tokio-by-hand v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stdout]   --> src/standard/instant_series.rs:91:7
[INFO] [stdout]    |
[INFO] [stdout] 91 |       producer.forward(consumer).wait().unwrap();
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: streams do nothing unless polled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stdout]   --> src/standard/delayed_series.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     core.run(producer.forward(consumer)).unwrap();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: streams do nothing unless polled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stdout]   --> src/standard/delayed_series.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     core.run(producer.forward(consumer)).unwrap();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: streams do nothing unless polled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stdout]    --> src/standard/delayed_series.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     core.run(producer.forward(consumer)).unwrap();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: streams do nothing unless polled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stdout]   --> src/standard/buffered.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     core.run(producer.forward(consumer)).unwrap();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: streams do nothing unless polled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stdout]    --> src/extended/instant_series.rs:115:7
[INFO] [stdout]     |
[INFO] [stdout] 115 |       producer.forward(consumer).wait().unwrap();
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: streams do nothing unless polled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stdout]   --> src/extended/delayed_series.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     core.run(producer.forward(consumer)).unwrap();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: streams do nothing unless polled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stdout]    --> src/extended/delayed_series.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 112 |     core.run(producer.forward(consumer)).unwrap();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: streams do nothing unless polled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stdout]    --> src/extended/delayed_series.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 127 |     core.run(producer.forward(consumer)).unwrap();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: streams do nothing unless polled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stdout]   --> src/extended/buffered.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     core.run(producer.forward(consumer)).unwrap();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: streams do nothing unless polled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `futures::stream::Map` in tuple element 0 that must be used
[INFO] [stdout]    --> src/extended/adapter.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 130 | /     stream
[INFO] [stdout] 131 | |       .take(7)
[INFO] [stdout] 132 | |       .inspect(|x| println!("from stream: {:?}", x))
[INFO] [stdout] 133 | |       .map(|x| Outgoing(x.0))
[INFO] [stdout] 134 | |       .forward(sink).wait().unwrap();
[INFO] [stdout]     | |_____________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: streams do nothing unless polled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
[INFO] running `Command { std: "docker" "inspect" "fe039af12e99e9f13d278895847f923514d363b905ee2e9617fbf5fbddd597d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe039af12e99e9f13d278895847f923514d363b905ee2e9617fbf5fbddd597d1", kill_on_drop: false }`
[INFO] [stdout] fe039af12e99e9f13d278895847f923514d363b905ee2e9617fbf5fbddd597d1