[INFO] fetching crate tokio-stdout 0.1.0...
[INFO] checking tokio-stdout-0.1.0 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate tokio-stdout 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate tokio-stdout 0.1.0 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tokio-stdout 0.1.0
[INFO] finished tweaking crates.io crate tokio-stdout 0.1.0
[INFO] tweaked toml for crates.io crate tokio-stdout 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-fmt-encoder v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33f4a02153f71203a9412640084c01e00f3b6d903e349dcf5bc9db51e5ad2b58
[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" "33f4a02153f71203a9412640084c01e00f3b6d903e349dcf5bc9db51e5ad2b58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33f4a02153f71203a9412640084c01e00f3b6d903e349dcf5bc9db51e5ad2b58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33f4a02153f71203a9412640084c01e00f3b6d903e349dcf5bc9db51e5ad2b58", kill_on_drop: false }`
[INFO] [stdout] 33f4a02153f71203a9412640084c01e00f3b6d903e349dcf5bc9db51e5ad2b58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b28798ae6240a8197e3f312b24655f6a5fa6f6da98f904167d95866f1569bd2
[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" "7b28798ae6240a8197e3f312b24655f6a5fa6f6da98f904167d95866f1569bd2", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking tokio-timer v0.1.2
[INFO] [stderr]     Checking tokio-fmt-encoder v0.2.0
[INFO] [stderr]     Checking tokio-stdout v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `futures::stream::MapErr` in tuple element 0 that must be used
[INFO] [stdout]   --> examples/timer.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | /     Timer::default()
[INFO] [stdout] 25 | |         .interval(Duration::from_secs(1))
[INFO] [stdout] 26 | |         .map(|()| String::from("hello"))
[INFO] [stdout] 27 | |         .map_err(Error::Timer)
[INFO] [stdout] 28 | |         .forward(spawn_encoder_sink_unbounded(encoder).sink_map_err(Error::Stdout))
[INFO] [stdout] 29 | |         .wait()
[INFO] [stdout] 30 | |         .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 `SinkMapErr` in tuple element 1 that must be used
[INFO] [stdout]   --> examples/timer.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | /     Timer::default()
[INFO] [stdout] 25 | |         .interval(Duration::from_secs(1))
[INFO] [stdout] 26 | |         .map(|()| String::from("hello"))
[INFO] [stdout] 27 | |         .map_err(Error::Timer)
[INFO] [stdout] 28 | |         .forward(spawn_encoder_sink_unbounded(encoder).sink_map_err(Error::Stdout))
[INFO] [stdout] 29 | |         .wait()
[INFO] [stdout] 30 | |         .unwrap();
[INFO] [stdout]    | |__________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: sinks do nothing unless polled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.04s
[INFO] running `Command { std: "docker" "inspect" "7b28798ae6240a8197e3f312b24655f6a5fa6f6da98f904167d95866f1569bd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b28798ae6240a8197e3f312b24655f6a5fa6f6da98f904167d95866f1569bd2", kill_on_drop: false }`
[INFO] [stdout] 7b28798ae6240a8197e3f312b24655f6a5fa6f6da98f904167d95866f1569bd2