[INFO] fetching crate parallel-stream 2.1.2...
[INFO] testing parallel-stream-2.1.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate parallel-stream 2.1.2 into /workspace/builds/worker-41/source
[INFO] validating manifest of crates.io crate parallel-stream 2.1.2 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate parallel-stream 2.1.2
[INFO] finished tweaking crates.io crate parallel-stream 2.1.2
[INFO] tweaked toml for crates.io crate parallel-stream 2.1.2 written to /workspace/builds/worker-41/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af0206df2f26ed3bf920c752c6ada1a45c84c0702b95e1750634f2ef183c31b7
[INFO] running `Command { std: "docker" "start" "-a" "af0206df2f26ed3bf920c752c6ada1a45c84c0702b95e1750634f2ef183c31b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af0206df2f26ed3bf920c752c6ada1a45c84c0702b95e1750634f2ef183c31b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af0206df2f26ed3bf920c752c6ada1a45c84c0702b95e1750634f2ef183c31b7", kill_on_drop: false }`
[INFO] [stdout] af0206df2f26ed3bf920c752c6ada1a45c84c0702b95e1750634f2ef183c31b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 769a2e88cc98b9641e1b97290db146aa53b2ad6a8dc64c41c4f1ab645f5c0753
[INFO] running `Command { std: "docker" "start" "-a" "769a2e88cc98b9641e1b97290db146aa53b2ad6a8dc64c41c4f1ab645f5c0753", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling futures-io v0.3.17
[INFO] [stderr]    Compiling fastrand v1.5.0
[INFO] [stderr]    Compiling signal-hook v0.3.10
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.7
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling async-lock v2.4.0
[INFO] [stderr]    Compiling socket2 v0.4.1
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling async-channel v1.6.1
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling polling v2.1.0
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling async-global-executor v2.0.2
[INFO] [stderr]    Compiling async-process v1.2.0
[INFO] [stderr]    Compiling async-std v1.10.0
[INFO] [stderr]    Compiling parallel-stream v2.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `async_std::sync::Receiver`, `async_std::sync::Sender`
[INFO] [stdout]  --> src/par_stream/for_each.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use async_std::sync::{self, Receiver, Sender};
[INFO] [stdout]   |                             ^^^^^^^^  ^^^^^^ no `Sender` in `sync`
[INFO] [stdout]   |                             |
[INFO] [stdout]   |                             no `Receiver` in `sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `async_std::sync::Receiver`
[INFO] [stdout]  --> src/par_stream/map.rs:3:29
[INFO] [stdout]   |
[INFO] [stdout] 3 | use async_std::sync::{self, Receiver};
[INFO] [stdout]   |                             ^^^^^^^^ no `Receiver` in `sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `channel` in module `sync`
[INFO] [stdout]   --> src/par_stream/for_each.rs:35:68
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let (sender, receiver): (Sender<()>, Receiver<()>) = sync::channel(1);
[INFO] [stdout]    |                                                                    ^^^^^^^ not found in `sync`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::sync::mpsc::channel;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `channel` in module `sync`
[INFO] [stdout]   --> src/par_stream/map.rs:29:40
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let (sender, receiver) = sync::channel(1);
[INFO] [stdout]    |                                        ^^^^^^^ not found in `sync`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 2  | use std::sync::mpsc::channel;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0392]: parameter `T` is never used
[INFO] [stdout]   --> src/par_stream/map.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub struct Map<T> {
[INFO] [stdout]    |                    ^ unused parameter
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
[INFO] [stdout]    = help: if you intended `T` to be a const parameter, use `const T: usize` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0392, E0425, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0392`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `parallel-stream` due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "769a2e88cc98b9641e1b97290db146aa53b2ad6a8dc64c41c4f1ab645f5c0753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "769a2e88cc98b9641e1b97290db146aa53b2ad6a8dc64c41c4f1ab645f5c0753", kill_on_drop: false }`
[INFO] [stdout] 769a2e88cc98b9641e1b97290db146aa53b2ad6a8dc64c41c4f1ab645f5c0753