[INFO] cloning repository https://github.com/willchet/Warning-Logger
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/willchet/Warning-Logger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillchet%2FWarning-Logger", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillchet%2FWarning-Logger'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 20c29a18c202db230e7d12a186f5c9d583909f46
[INFO] checking willchet/Warning-Logger against try#b6bca0d7327839b5e3f7a7779947cb9113d08917+rustflags=-Zstrict-projection-item-bounds for 150662-leaf
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillchet%2FWarning-Logger" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/willchet/Warning-Logger
[INFO] finished tweaking git repo https://github.com/willchet/Warning-Logger
[INFO] tweaked toml for git repo https://github.com/willchet/Warning-Logger written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/willchet/Warning-Logger on toolchain b6bca0d7327839b5e3f7a7779947cb9113d08917
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/willchet/Warning-Logger already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66794f95f680ed6f81883df7abfbed00c94d750206b9434a3e91ba36adcb094d
[INFO] running `Command { std: "docker" "start" "-a" "66794f95f680ed6f81883df7abfbed00c94d750206b9434a3e91ba36adcb094d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66794f95f680ed6f81883df7abfbed00c94d750206b9434a3e91ba36adcb094d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66794f95f680ed6f81883df7abfbed00c94d750206b9434a3e91ba36adcb094d", kill_on_drop: false }`
[INFO] [stdout] 66794f95f680ed6f81883df7abfbed00c94d750206b9434a3e91ba36adcb094d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Zstrict-projection-item-bounds" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b41a6acd7d96edc4fcfa4830b06bedc280fda3010cd1b3179192ce07f87c00b
[INFO] running `Command { std: "docker" "start" "-a" "2b41a6acd7d96edc4fcfa4830b06bedc280fda3010cd1b3179192ce07f87c00b", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.97
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking rayon-core v1.12.1
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking warning_logger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iter_intersperse, let_chains)]
[INFO] [stdout]   |                              ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `T` cannot be sent between threads safely
[INFO] [stdout]    --> src/lib.rs:427:58
[INFO] [stdout]     |
[INFO] [stdout] 427 | impl<I, T, E> SendErrors for I where I: ParallelIterator<Item = Result<T, E>> {}
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^^^ `T` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout] note: required because it appears within the type `Result<T, E>`
[INFO] [stdout]    --> /rustc/b6bca0d7327839b5e3f7a7779947cb9113d08917/library/core/src/result.rs:557:9
[INFO] [stdout] help: consider further restricting type parameter `T` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 427 | impl<I, T, E> SendErrors for I where I: ParallelIterator<Item = Result<T, E>>, T: std::marker::Send {}
[INFO] [stdout]     |                                                                              ++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `E` cannot be sent between threads safely
[INFO] [stdout]    --> src/lib.rs:427:58
[INFO] [stdout]     |
[INFO] [stdout] 427 | impl<I, T, E> SendErrors for I where I: ParallelIterator<Item = Result<T, E>> {}
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^^^ `E` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout] note: required because it appears within the type `Result<T, E>`
[INFO] [stdout]    --> /rustc/b6bca0d7327839b5e3f7a7779947cb9113d08917/library/core/src/result.rs:557:9
[INFO] [stdout] help: consider further restricting type parameter `E` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 427 | impl<I, T, E> SendErrors for I where I: ParallelIterator<Item = Result<T, E>>, E: std::marker::Send {}
[INFO] [stdout]     |                                                                              ++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `T` cannot be sent between threads safely
[INFO] [stdout]    --> src/lib.rs:501:60
[INFO] [stdout]     |
[INFO] [stdout] 501 | impl<I, T, W> SendWarnings for I where I: ParallelIterator<Item = Logger<T, W>> {}
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^^^^^ `T` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout] note: required because it appears within the type `Logger<T, W>`
[INFO] [stdout]    --> src/lib.rs:58:12
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub struct Logger<T, W = BasicWarning> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] help: consider further restricting type parameter `T` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 501 | impl<I, T, W> SendWarnings for I where I: ParallelIterator<Item = Logger<T, W>>, T: std::marker::Send {}
[INFO] [stdout]     |                                                                                ++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `W` cannot be sent between threads safely
[INFO] [stdout]    --> src/lib.rs:501:60
[INFO] [stdout]     |
[INFO] [stdout] 501 | impl<I, T, W> SendWarnings for I where I: ParallelIterator<Item = Logger<T, W>> {}
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^^^^^ `W` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout] note: required because it appears within the type `Logger<T, W>`
[INFO] [stdout]    --> src/lib.rs:58:12
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub struct Logger<T, W = BasicWarning> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] help: consider further restricting type parameter `W` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 501 | impl<I, T, W> SendWarnings for I where I: ParallelIterator<Item = Logger<T, W>>, W: std::marker::Send {}
[INFO] [stdout]     |                                                                                ++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `E` cannot be sent between threads safely
[INFO] [stdout]    --> src/lib.rs:372:40
[INFO] [stdout]     |
[INFO] [stdout] 372 |         Self: Sized + ParallelIterator<Item = Result<T, E>>,
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^ `E` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout] note: required because it appears within the type `Result<T, E>`
[INFO] [stdout]    --> /rustc/b6bca0d7327839b5e3f7a7779947cb9113d08917/library/core/src/result.rs:557:9
[INFO] [stdout] help: consider further restricting type parameter `E` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 374 |         E: Display + std::marker::Send,
[INFO] [stdout]     |                    +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `E` cannot be sent between threads safely
[INFO] [stdout]    --> src/lib.rs:392:40
[INFO] [stdout]     |
[INFO] [stdout] 392 |         Self: Sized + ParallelIterator<Item = Result<T, E>>,
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^ `E` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout] note: required because it appears within the type `Result<T, E>`
[INFO] [stdout]    --> /rustc/b6bca0d7327839b5e3f7a7779947cb9113d08917/library/core/src/result.rs:557:9
[INFO] [stdout] help: consider further restricting type parameter `E` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 393 |         T: Sync + Send, E: std::marker::Send
[INFO] [stdout]     |                         ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `E` cannot be sent between threads safely
[INFO] [stdout]    --> src/lib.rs:411:40
[INFO] [stdout]     |
[INFO] [stdout] 411 |         Self: Sized + ParallelIterator<Item = Result<T, E>>,
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^ `E` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout] note: required because it appears within the type `Result<T, E>`
[INFO] [stdout]    --> /rustc/b6bca0d7327839b5e3f7a7779947cb9113d08917/library/core/src/result.rs:557:9
[INFO] [stdout] help: consider further restricting type parameter `E` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 412 |         E: Display + std::marker::Send,
[INFO] [stdout]     |                    +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `W` cannot be sent between threads safely
[INFO] [stdout]    --> src/lib.rs:479:40
[INFO] [stdout]     |
[INFO] [stdout] 479 |         Self: Sized + ParallelIterator<Item = Logger<T, W>>,
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^ `W` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout] note: required because it appears within the type `Logger<T, W>`
[INFO] [stdout]    --> src/lib.rs:58:12
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub struct Logger<T, W = BasicWarning> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] help: consider further restricting type parameter `W` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 481 |         W: Warning + std::marker::Send,
[INFO] [stdout]     |                    +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `W` cannot be sent between threads safely
[INFO] [stdout]    --> src/lib.rs:495:40
[INFO] [stdout]     |
[INFO] [stdout] 495 |         Self: Sized + ParallelIterator<Item = Logger<T, W>>,
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^ `W` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout] note: required because it appears within the type `Logger<T, W>`
[INFO] [stdout]    --> src/lib.rs:58:12
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub struct Logger<T, W = BasicWarning> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] help: consider further restricting type parameter `W` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 489 |     fn send_warnings_with_context<T: Send, W: Warning + std::marker::Send, C: Display>(
[INFO] [stdout]     |                                                       +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iter_intersperse, let_chains)]
[INFO] [stdout]   |                              ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `T` cannot be sent between threads safely
[INFO] [stdout]    --> src/lib.rs:427:58
[INFO] [stdout]     |
[INFO] [stdout] 427 | impl<I, T, E> SendErrors for I where I: ParallelIterator<Item = Result<T, E>> {}
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^^^ `T` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout] note: required because it appears within the type `Result<T, E>`
[INFO] [stdout]    --> /rustc/b6bca0d7327839b5e3f7a7779947cb9113d08917/library/core/src/result.rs:557:9
[INFO] [stdout] help: consider further restricting type parameter `T` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 427 | impl<I, T, E> SendErrors for I where I: ParallelIterator<Item = Result<T, E>>, T: std::marker::Send {}
[INFO] [stdout]     |                                                                              ++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `E` cannot be sent between threads safely
[INFO] [stdout]    --> src/lib.rs:427:58
[INFO] [stdout]     |
[INFO] [stdout] 427 | impl<I, T, E> SendErrors for I where I: ParallelIterator<Item = Result<T, E>> {}
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^^^ `E` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout] note: required because it appears within the type `Result<T, E>`
[INFO] [stdout]    --> /rustc/b6bca0d7327839b5e3f7a7779947cb9113d08917/library/core/src/result.rs:557:9
[INFO] [stdout] help: consider further restricting type parameter `E` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 427 | impl<I, T, E> SendErrors for I where I: ParallelIterator<Item = Result<T, E>>, E: std::marker::Send {}
[INFO] [stdout]     |                                                                              ++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `T` cannot be sent between threads safely
[INFO] [stdout]    --> src/lib.rs:501:60
[INFO] [stdout]     |
[INFO] [stdout] 501 | impl<I, T, W> SendWarnings for I where I: ParallelIterator<Item = Logger<T, W>> {}
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^^^^^ `T` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout] note: required because it appears within the type `Logger<T, W>`
[INFO] [stdout]    --> src/lib.rs:58:12
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub struct Logger<T, W = BasicWarning> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] help: consider further restricting type parameter `T` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 501 | impl<I, T, W> SendWarnings for I where I: ParallelIterator<Item = Logger<T, W>>, T: std::marker::Send {}
[INFO] [stdout]     |                                                                                ++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `W` cannot be sent between threads safely
[INFO] [stdout]    --> src/lib.rs:501:60
[INFO] [stdout]     |
[INFO] [stdout] 501 | impl<I, T, W> SendWarnings for I where I: ParallelIterator<Item = Logger<T, W>> {}
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^^^^^ `W` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout] note: required because it appears within the type `Logger<T, W>`
[INFO] [stdout]    --> src/lib.rs:58:12
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub struct Logger<T, W = BasicWarning> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] help: consider further restricting type parameter `W` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 501 | impl<I, T, W> SendWarnings for I where I: ParallelIterator<Item = Logger<T, W>>, W: std::marker::Send {}
[INFO] [stdout]     |                                                                                ++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `E` cannot be sent between threads safely
[INFO] [stdout]    --> src/lib.rs:372:40
[INFO] [stdout]     |
[INFO] [stdout] 372 |         Self: Sized + ParallelIterator<Item = Result<T, E>>,
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^ `E` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout] note: required because it appears within the type `Result<T, E>`
[INFO] [stdout]    --> /rustc/b6bca0d7327839b5e3f7a7779947cb9113d08917/library/core/src/result.rs:557:9
[INFO] [stdout] help: consider further restricting type parameter `E` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 374 |         E: Display + std::marker::Send,
[INFO] [stdout]     |                    +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `E` cannot be sent between threads safely
[INFO] [stdout]    --> src/lib.rs:392:40
[INFO] [stdout]     |
[INFO] [stdout] 392 |         Self: Sized + ParallelIterator<Item = Result<T, E>>,
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^ `E` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout] note: required because it appears within the type `Result<T, E>`
[INFO] [stdout]    --> /rustc/b6bca0d7327839b5e3f7a7779947cb9113d08917/library/core/src/result.rs:557:9
[INFO] [stdout] help: consider further restricting type parameter `E` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 393 |         T: Sync + Send, E: std::marker::Send
[INFO] [stdout]     |                         ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `E` cannot be sent between threads safely
[INFO] [stdout]    --> src/lib.rs:411:40
[INFO] [stdout]     |
[INFO] [stdout] 411 |         Self: Sized + ParallelIterator<Item = Result<T, E>>,
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^ `E` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout] note: required because it appears within the type `Result<T, E>`
[INFO] [stdout]    --> /rustc/b6bca0d7327839b5e3f7a7779947cb9113d08917/library/core/src/result.rs:557:9
[INFO] [stdout] help: consider further restricting type parameter `E` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 412 |         E: Display + std::marker::Send,
[INFO] [stdout]     |                    +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `W` cannot be sent between threads safely
[INFO] [stdout]    --> src/lib.rs:479:40
[INFO] [stdout]     |
[INFO] [stdout] 479 |         Self: Sized + ParallelIterator<Item = Logger<T, W>>,
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^ `W` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout] note: required because it appears within the type `Logger<T, W>`
[INFO] [stdout]    --> src/lib.rs:58:12
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub struct Logger<T, W = BasicWarning> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] help: consider further restricting type parameter `W` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 481 |         W: Warning + std::marker::Send,
[INFO] [stdout]     |                    +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `W` cannot be sent between threads safely
[INFO] [stdout]    --> src/lib.rs:495:40
[INFO] [stdout]     |
[INFO] [stdout] 495 |         Self: Sized + ParallelIterator<Item = Logger<T, W>>,
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^ `W` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout] note: required because it appears within the type `Logger<T, W>`
[INFO] [stdout]    --> src/lib.rs:58:12
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub struct Logger<T, W = BasicWarning> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] help: consider further restricting type parameter `W` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 489 |     fn send_warnings_with_context<T: Send, W: Warning + std::marker::Send, C: Display>(
[INFO] [stdout]     |                                                       +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `warning_logger` (lib) due to 9 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `warning_logger` (lib test) due to 9 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "2b41a6acd7d96edc4fcfa4830b06bedc280fda3010cd1b3179192ce07f87c00b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b41a6acd7d96edc4fcfa4830b06bedc280fda3010cd1b3179192ce07f87c00b", kill_on_drop: false }`
[INFO] [stdout] 2b41a6acd7d96edc4fcfa4830b06bedc280fda3010cd1b3179192ce07f87c00b