[INFO] fetching crate integra8_scheduling 0.0.4-alpha...
[INFO] testing integra8_scheduling-0.0.4-alpha against 1.90.0 for beta-1.91-3
[INFO] extracting crate integra8_scheduling 0.0.4-alpha into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate integra8_scheduling 0.0.4-alpha
[INFO] finished tweaking crates.io crate integra8_scheduling 0.0.4-alpha
[INFO] tweaked toml for crates.io crate integra8_scheduling 0.0.4-alpha written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate integra8_scheduling 0.0.4-alpha on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 94 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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 integra8_async_runtime v0.0.4-alpha
[INFO] [stderr]   Downloaded integra8_components v0.0.4-alpha
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94b5e66fa9e980f9f8ed205dd5d2548b245e50dd8997c6effa89dc0a77cc7ea8
[INFO] running `Command { std: "docker" "start" "-a" "94b5e66fa9e980f9f8ed205dd5d2548b245e50dd8997c6effa89dc0a77cc7ea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94b5e66fa9e980f9f8ed205dd5d2548b245e50dd8997c6effa89dc0a77cc7ea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94b5e66fa9e980f9f8ed205dd5d2548b245e50dd8997c6effa89dc0a77cc7ea8", kill_on_drop: false }`
[INFO] [stdout] 94b5e66fa9e980f9f8ed205dd5d2548b245e50dd8997c6effa89dc0a77cc7ea8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22f3d7b150030d122008b97b2fa6448f17b92d531f58f01540ae3582e84194eb
[INFO] running `Command { std: "docker" "start" "-a" "22f3d7b150030d122008b97b2fa6448f17b92d531f58f01540ae3582e84194eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling integra8_async_runtime v0.0.4-alpha
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling integra8_components v0.0.4-alpha
[INFO] [stderr]    Compiling integra8_scheduling v0.0.4-alpha (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: `Result<(), std::sync::mpmc::SendError<TaskCompleteEvent>>` is not a future
[INFO] [stdout]   --> src/scheduler.rs:54:66
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 let _ = ctx.tx.send(TaskCompleteEvent(ctx.path)).await;
[INFO] [stdout]    |                                                                  ^^^^^ `Result<(), std::sync::mpmc::SendError<TaskCompleteEvent>>` is not a future
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `futures::Future` is not implemented for `Result<(), std::sync::mpmc::SendError<TaskCompleteEvent>>`
[INFO] [stdout]    = note: Result<(), std::sync::mpmc::SendError<TaskCompleteEvent>> must be a future or must implement `IntoFuture` to be awaited
[INFO] [stdout]    = note: required for `Result<(), std::sync::mpmc::SendError<TaskCompleteEvent>>` to implement `std::future::IntoFuture`
[INFO] [stdout] help: remove the `.await`
[INFO] [stdout]    |
[INFO] [stdout] 54 -                 let _ = ctx.tx.send(TaskCompleteEvent(ctx.path)).await;
[INFO] [stdout] 54 +                 let _ = ctx.tx.send(TaskCompleteEvent(ctx.path));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> src/scheduler.rs:34:24
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let (tx, rx) = channel::<TaskCompleteEvent>(actual_max_concurrency);
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ---------------------- unexpected argument of type `usize`
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sync/mpsc.rs:519:8
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 34 -         let (tx, rx) = channel::<TaskCompleteEvent>(actual_max_concurrency);
[INFO] [stdout] 34 +         let (tx, rx) = channel::<TaskCompleteEvent>();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0277.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `integra8_scheduling` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "22f3d7b150030d122008b97b2fa6448f17b92d531f58f01540ae3582e84194eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22f3d7b150030d122008b97b2fa6448f17b92d531f58f01540ae3582e84194eb", kill_on_drop: false }`
[INFO] [stdout] 22f3d7b150030d122008b97b2fa6448f17b92d531f58f01540ae3582e84194eb
