[INFO] fetching crate channel-async 0.3.0-alpha.8...
[INFO] checking channel-async-0.3.0-alpha.8 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate channel-async 0.3.0-alpha.8 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate channel-async 0.3.0-alpha.8 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate channel-async 0.3.0-alpha.8
[INFO] finished tweaking crates.io crate channel-async 0.3.0-alpha.8
[INFO] tweaked toml for crates.io crate channel-async 0.3.0-alpha.8 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a7341311e1d28f9b64355c3963155ed28c8859f0faf7a4063c4aa62b809174be
[INFO] running `"docker" "start" "-a" "a7341311e1d28f9b64355c3963155ed28c8859f0faf7a4063c4aa62b809174be"`
[INFO] [stderr]    Compiling pin-project-internal v0.4.0-alpha.11
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling tracing-attributes v0.1.4
[INFO] [stderr]    Compiling tokio-macros v0.2.0-alpha.5
[INFO] [stderr]    Compiling futures-join-macro-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-select-macro-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking tracing-core v0.1.6
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking rayon-core v1.6.0
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking tracing v0.1.9
[INFO] [stderr]     Checking pin-project v0.4.0-alpha.11
[INFO] [stderr]     Checking tokio-io v0.2.0-alpha.5
[INFO] [stderr]     Checking tokio-codec v0.2.0-alpha.5
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Checking tokio-sync v0.2.0-alpha.5
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking tokio-executor v0.2.0-alpha.5
[INFO] [stderr]     Checking tokio-timer v0.3.0-alpha.5
[INFO] [stderr]     Checking tokio-fs v0.2.0-alpha.5
[INFO] [stderr]     Checking tokio-net v0.2.0-alpha.5
[INFO] [stderr]     Checking channel-async v0.3.0-alpha.8 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0425]: cannot find function `sleep` in crate `tokio_timer`
[INFO] [stderr]   --> src/receiver.rs:42:54
[INFO] [stderr]    |
[INFO] [stderr] 42 |                         *pending = Some(tokio_timer::sleep(*delay));
[INFO] [stderr]    |                                                      ^^^^^ not found in `tokio_timer`
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::thread::sleep;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `sleep` in crate `tokio_timer`
[INFO] [stderr]   --> src/sender.rs:26:34
[INFO] [stderr]    |
[INFO] [stderr] 26 |                     tokio_timer::sleep(self.delay).await;
[INFO] [stderr]    |                                  ^^^^^ not found in `tokio_timer`
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::thread::sleep;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `channel-async`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a7341311e1d28f9b64355c3963155ed28c8859f0faf7a4063c4aa62b809174be"`
[INFO] running `"docker" "rm" "-f" "a7341311e1d28f9b64355c3963155ed28c8859f0faf7a4063c4aa62b809174be"`
[INFO] [stdout] a7341311e1d28f9b64355c3963155ed28c8859f0faf7a4063c4aa62b809174be