[INFO] crate channel-async 0.3.0-alpha.8 is already in cache
[INFO] checking channel-async-0.3.0-alpha.8 against try#8d67a66581ea5498d7ac03b8f88a478d8ec75cf0 for pr-64564
[INFO] extracting crate channel-async 0.3.0-alpha.8 into work/builds/worker-5/source
[INFO] validating manifest of crates.io crate channel-async 0.3.0-alpha.8 on toolchain 8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt" "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 work/builds/worker-5/source/Cargo.toml
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6ba4c09ef3ca198223b5f1ea6a909006d2c2aa504c82ff9d10c449e6ac110839
[INFO] running `"docker" "start" "-a" "6ba4c09ef3ca198223b5f1ea6a909006d2c2aa504c82ff9d10c449e6ac110839"`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling pin-project-internal v0.4.0-alpha.11
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]    Compiling tracing-attributes v0.1.4
[INFO] [stderr]    Compiling tokio-macros v0.2.0-alpha.5
[INFO] [stderr]    Compiling futures-select-macro-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-join-macro-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking rayon-core v1.6.0
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking csv v1.1.1
[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 criterion v0.2.11
[INFO] [stderr]     Checking tokio-codec v0.2.0-alpha.5
[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-net v0.2.0-alpha.5
[INFO] [stderr]     Checking tokio-fs v0.2.0-alpha.5
[INFO] [stderr]     Checking channel-async v0.3.0-alpha.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tokio v0.2.0-alpha.5
[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] warning: unreachable expression
[INFO] [stderr]   --> src/sender.rs:18:64
[INFO] [stderr]    |
[INFO] [stderr] 18 |       pub async fn send(&self, msg: T) -> Result<(), (T, Error)> {
[INFO] [stderr]    |  ________________________________________________________________^
[INFO] [stderr] 19 | |         let mut msg = msg;
[INFO] [stderr] 20 | |         loop {
[INFO] [stderr] 21 | |             match self.inner.try_send(msg) {
[INFO] [stderr] ...  |
[INFO] [stderr] 31 | |         }
[INFO] [stderr] 32 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[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" "6ba4c09ef3ca198223b5f1ea6a909006d2c2aa504c82ff9d10c449e6ac110839"`
[INFO] running `"docker" "rm" "-f" "6ba4c09ef3ca198223b5f1ea6a909006d2c2aa504c82ff9d10c449e6ac110839"`
[INFO] [stdout] 6ba4c09ef3ca198223b5f1ea6a909006d2c2aa504c82ff9d10c449e6ac110839