[INFO] fetching crate mles-webproxy 0.8.8...
[INFO] testing mles-webproxy-0.8.8 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate mles-webproxy 0.8.8 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate mles-webproxy 0.8.8
[INFO] finished tweaking crates.io crate mles-webproxy 0.8.8
[INFO] tweaked toml for crates.io crate mles-webproxy 0.8.8 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mles-webproxy 0.8.8 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mles-webproxy 0.8.8 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" "+1.100.0-beta.1" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4d4f604c82990c28a1ac55caeab13229e233ad70d5654a8ecd0f88c7a4d13467
[INFO] running `Command { std: "docker" "start" "4d4f604c82990c28a1ac55caeab13229e233ad70d5654a8ecd0f88c7a4d13467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d4f604c82990c28a1ac55caeab13229e233ad70d5654a8ecd0f88c7a4d13467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4d4f604c82990c28a1ac55caeab13229e233ad70d5654a8ecd0f88c7a4d13467" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d4f604c82990c28a1ac55caeab13229e233ad70d5654a8ecd0f88c7a4d13467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4d4f604c82990c28a1ac55caeab13229e233ad70d5654a8ecd0f88c7a4d13467" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] error[E0277]: the trait bound `!: From<()>` is not satisfied
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/warp-0.1.23/src/test.rs:502:30
[INFO] [stdout]      |
[INFO] [stdout]  502 |                     .forward(tx.sink_map_err(|_| ()))
[INFO] [stdout]      |                      ------- ^^^^^^^^^^^^^^^^^^^^^^^ the trait `From<()>` is not implemented for `!`
[INFO] [stdout]      |                      |
[INFO] [stdout]      |                      required by a bound introduced by this call
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 <https://github.com/rust-lang/rust/issues/148922> for more information)
[INFO] [stdout]      = help: you might have intended to use the type `()` here instead
[INFO] [stdout] note: the method call chain might not have had the expected associated types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/warp-0.1.23/src/test.rs:502:33
[INFO] [stdout]      |
[INFO] [stdout]  502 |                     .forward(tx.sink_map_err(|_| ()))
[INFO] [stdout]      |                              -- ^^^^^^^^^^^^^^^^^^^^ `Sink::SinkError` is `()` here
[INFO] [stdout]      |                              |
[INFO] [stdout]      |                              this expression has type `SplitSink<WebSocket>`
[INFO] [stdout] note: required by a bound in `futures::Stream::forward`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-0.1.31/src/stream/mod.rs:1068:28
[INFO] [stdout]      |
[INFO] [stdout]  184 | pub trait Stream {
[INFO] [stdout] ...
[INFO] [stdout] 1066 |     fn forward<S>(self, sink: S) -> Forward<Self, S>
[INFO] [stdout] 1067 |         where S: Sink<SinkItem = Self::Item>,
[INFO] [stdout] 1068 |               Self::Error: From<S::SinkError>,
[INFO] [stdout]      |                            ^^^^^^^^^^^^^^^^^^ required by this bound in `Stream::forward`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `!: From<()>` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/warp-0.1.23/src/test.rs:498:29
[INFO] [stdout]     |
[INFO] [stdout] 498 |                   let write = wr_rx
[INFO] [stdout]     |  _____________________________^
[INFO] [stdout] 499 | |                     .map_err(|()| {
[INFO] [stdout] 500 | |                         unreachable!("mpsc::Receiver doesn't error");
[INFO] [stdout] 501 | |                     })
[INFO] [stdout] 502 | |                     .forward(tx.sink_map_err(|_| ()))
[INFO] [stdout] 503 | |                     .map(|_| ());
[INFO] [stdout]     | |________________________________^ the trait `From<()>` is not implemented for `!`
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `futures::Future` is conditionally implemented for `Forward<T, U>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-0.1.31/src/stream/forward.rs:78:1
[INFO] [stdout]     |
[INFO] [stdout]  78 | / impl<T, U> Future for Forward<T, U>
[INFO] [stdout]  79 | |     where U: Sink<SinkItem=T::Item>,
[INFO] [stdout]  80 | |           T: Stream,
[INFO] [stdout]  81 | |           T::Error: From<U::SinkError>,
[INFO] [stdout]     | |_____________________------------------^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       unsatisfied requirement introduced here: `<MapErr<_, {closure@...}> as Stream>::Error: From<_>`
[INFO] [stdout]     = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 <https://github.com/rust-lang/rust/issues/148922> for more information)
[INFO] [stdout]     = help: you might have intended to use the type `()` here instead
[INFO] [stdout]     = note: required for `Forward<MapErr<UnboundedReceiver<Message>, {closure@...}>, _>` to implement `futures::Future`
[INFO] [stdout]     = note: the full name for the type has been written to '/opt/rustwide/target/debug/build/warp/019b09b0eea318a8/out/warp-019b09b0eea318a8.long-type-13759500722313454783.txt'
[INFO] [stdout]     = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `!: From<()>` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/warp-0.1.23/src/test.rs:503:22
[INFO] [stdout]     |
[INFO] [stdout] 503 |                     .map(|_| ());
[INFO] [stdout]     |                      ^^^ the trait `From<()>` is not implemented for `!`
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `futures::Future` is conditionally implemented for `Forward<T, U>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-0.1.31/src/stream/forward.rs:78:1
[INFO] [stdout]     |
[INFO] [stdout]  78 | / impl<T, U> Future for Forward<T, U>
[INFO] [stdout]  79 | |     where U: Sink<SinkItem=T::Item>,
[INFO] [stdout]  80 | |           T: Stream,
[INFO] [stdout]  81 | |           T::Error: From<U::SinkError>,
[INFO] [stdout]     | |_____________________------------------^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       unsatisfied requirement introduced here: `<MapErr<_, {closure@...}> as Stream>::Error: From<_>`
[INFO] [stdout]     = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 <https://github.com/rust-lang/rust/issues/148922> for more information)
[INFO] [stdout]     = help: you might have intended to use the type `()` here instead
[INFO] [stdout]     = note: required for `Forward<MapErr<UnboundedReceiver<Message>, {closure@...}>, _>` to implement `futures::Future`
[INFO] [stdout]     = note: the full name for the type has been written to '/opt/rustwide/target/debug/build/warp/019b09b0eea318a8/out/warp-019b09b0eea318a8.long-type-13759500722313454783.txt'
[INFO] [stdout]     = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `!: From<()>` is not satisfied
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/warp-0.1.23/src/test.rs:510:30
[INFO] [stdout]      |
[INFO] [stdout]  510 |                     .forward(rd_tx.sink_map_err(|_| ()))
[INFO] [stdout]      |                      ------- ^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `From<()>` is not implemented for `!`
[INFO] [stdout]      |                      |
[INFO] [stdout]      |                      required by a bound introduced by this call
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 <https://github.com/rust-lang/rust/issues/148922> for more information)
[INFO] [stdout]      = help: you might have intended to use the type `()` here instead
[INFO] [stdout] note: the method call chain might not have had the expected associated types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/warp-0.1.23/src/test.rs:510:36
[INFO] [stdout]      |
[INFO] [stdout]  510 |                     .forward(rd_tx.sink_map_err(|_| ()))
[INFO] [stdout]      |                              ----- ^^^^^^^^^^^^^^^^^^^^ `Sink::SinkError` is `()` here
[INFO] [stdout]      |                              |
[INFO] [stdout]      |                              this expression has type `UnboundedSender<Result<Message, Error>>`
[INFO] [stdout] note: required by a bound in `futures::Stream::forward`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-0.1.31/src/stream/mod.rs:1068:28
[INFO] [stdout]      |
[INFO] [stdout]  184 | pub trait Stream {
[INFO] [stdout] ...
[INFO] [stdout] 1066 |     fn forward<S>(self, sink: S) -> Forward<Self, S>
[INFO] [stdout] 1067 |         where S: Sink<SinkItem = Self::Item>,
[INFO] [stdout] 1068 |               Self::Error: From<S::SinkError>,
[INFO] [stdout]      |                            ^^^^^^^^^^^^^^^^^^ required by this bound in `Stream::forward`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `!: From<()>` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/warp-0.1.23/src/test.rs:505:28
[INFO] [stdout]     |
[INFO] [stdout] 505 |                   let read = rx
[INFO] [stdout]     |  ____________________________^
[INFO] [stdout] 506 | |                     .take_while(|m| {
[INFO] [stdout] 507 | |                         futures::future::ok(!m.is_close())
[INFO] [stdout] 508 | |                     })
[INFO] [stdout] 509 | |                     .then(|result| Ok(result))
[INFO] [stdout] 510 | |                     .forward(rd_tx.sink_map_err(|_| ()))
[INFO] [stdout] 511 | |                     .map(|_| ());
[INFO] [stdout]     | |________________________________^ the trait `From<()>` is not implemented for `!`
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `futures::Future` is conditionally implemented for `Forward<T, U>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-0.1.31/src/stream/forward.rs:78:1
[INFO] [stdout]     |
[INFO] [stdout]  78 | / impl<T, U> Future for Forward<T, U>
[INFO] [stdout]  79 | |     where U: Sink<SinkItem=T::Item>,
[INFO] [stdout]  80 | |           T: Stream,
[INFO] [stdout]  81 | |           T::Error: From<U::SinkError>,
[INFO] [stdout]     | |_____________________------------------^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       unsatisfied requirement introduced here: `<Then<_, {closure@...}, _> as Stream>::Error: From<_>`
[INFO] [stdout]     = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 <https://github.com/rust-lang/rust/issues/148922> for more information)
[INFO] [stdout]     = help: you might have intended to use the type `()` here instead
[INFO] [stdout]     = note: required for `Forward<Then<TakeWhile<_, {closure@...}, _>, {closure@...}, _>, _>` to implement `futures::Future`
[INFO] [stdout]     = note: the full name for the type has been written to '/opt/rustwide/target/debug/build/warp/019b09b0eea318a8/out/warp-019b09b0eea318a8.long-type-14025890831248231222.txt'
[INFO] [stdout]     = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `!: From<()>` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/warp-0.1.23/src/test.rs:511:22
[INFO] [stdout]     |
[INFO] [stdout] 511 |                     .map(|_| ());
[INFO] [stdout]     |                      ^^^ the trait `From<()>` is not implemented for `!`
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `futures::Future` is conditionally implemented for `Forward<T, U>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-0.1.31/src/stream/forward.rs:78:1
[INFO] [stdout]     |
[INFO] [stdout]  78 | / impl<T, U> Future for Forward<T, U>
[INFO] [stdout]  79 | |     where U: Sink<SinkItem=T::Item>,
[INFO] [stdout]  80 | |           T: Stream,
[INFO] [stdout]  81 | |           T::Error: From<U::SinkError>,
[INFO] [stdout]     | |_____________________------------------^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       unsatisfied requirement introduced here: `<Then<_, {closure@...}, _> as Stream>::Error: From<_>`
[INFO] [stdout]     = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 <https://github.com/rust-lang/rust/issues/148922> for more information)
[INFO] [stdout]     = help: you might have intended to use the type `()` here instead
[INFO] [stdout]     = note: required for `Forward<Then<TakeWhile<_, {closure@...}, _>, {closure@...}, _>, _>` to implement `futures::Future`
[INFO] [stdout]     = note: the full name for the type has been written to '/opt/rustwide/target/debug/build/warp/019b09b0eea318a8/out/warp-019b09b0eea318a8.long-type-14025890831248231222.txt'
[INFO] [stdout]     = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `!: From<()>` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/warp-0.1.23/src/test.rs:513:35
[INFO] [stdout]     |
[INFO] [stdout] 513 |                 rt.block_on(write.join(read)).expect("websocket forward");
[INFO] [stdout]     |                                   ^^^^ the trait `From<()>` is not implemented for `!`
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `futures::Future` is conditionally implemented for `futures::future::Map<A, F>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-0.1.31/src/future/map.rs:22:1
[INFO] [stdout]     |
[INFO] [stdout]  22 | / impl<U, A, F> Future for Map<A, F>
[INFO] [stdout]  23 | |     where A: Future,
[INFO] [stdout]  24 | |           F: FnOnce(A::Item) -> U,
[INFO] [stdout]     | |_________________________________-^
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   unsatisfied requirement introduced here: `<{closure@test.rs:511:26} as FnOnce<(_,)>>::Output == _`
[INFO] [stdout]     = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 <https://github.com/rust-lang/rust/issues/148922> for more information)
[INFO] [stdout]     = help: you might have intended to use the type `()` here instead
[INFO] [stdout]     = note: required for `Forward<Then<TakeWhile<_, {closure@...}, _>, {closure@...}, _>, _>` to implement `futures::Future`
[INFO] [stdout]     = note: 1 redundant requirement hidden
[INFO] [stdout]     = note: required for `Map<Forward<Then<_, {closure@...}, _>, _>, {closure@...}>` to implement `futures::Future`
[INFO] [stdout] note: required by a bound in `futures::future::Join`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-0.1.31/src/future/join.rs:17:25
[INFO] [stdout]     |
[INFO] [stdout]  17 |                     $($B: Future<Error=A::Error>),*
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Join`
[INFO] [stdout] ...
[INFO] [stdout] 117 | / generate! {
[INFO] [stdout] 118 | |     /// Future for the `join` combinator, waiting for two futures to
[INFO] [stdout] 119 | |     /// complete.
[INFO] [stdout] 120 | |     ///
[INFO] [stdout] 121 | |     /// This is created by the `Future::join` method.
[INFO] [stdout] 122 | |     (Join, new, <A, B>),
[INFO] [stdout] ...   |
[INFO] [stdout] 140 | |     (Join5, new5, <A, B, C, D, E>),
[INFO] [stdout] 141 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     = note: the full name for the type has been written to '/opt/rustwide/target/debug/build/warp/019b09b0eea318a8/out/warp-019b09b0eea318a8.long-type-11461683892320539628.txt'
[INFO] [stdout]     = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout]     = note: this error originates in the macro `generate` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `warp` (lib) due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "4d4f604c82990c28a1ac55caeab13229e233ad70d5654a8ecd0f88c7a4d13467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d4f604c82990c28a1ac55caeab13229e233ad70d5654a8ecd0f88c7a4d13467", kill_on_drop: false }`
[INFO] [stdout] 4d4f604c82990c28a1ac55caeab13229e233ad70d5654a8ecd0f88c7a4d13467
