[INFO] crate futures-signals 0.3.4 is already in cache
[INFO] extracting crate futures-signals 0.3.4 into work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/futures-signals/0.3.4
[INFO] extracting crate futures-signals 0.3.4 into work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/futures-signals/0.3.4
[INFO] validating manifest of futures-signals-0.3.4 on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of futures-signals-0.3.4 on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing futures-signals-0.3.4
[INFO] finished frobbing futures-signals-0.3.4
[INFO] frobbed toml for futures-signals-0.3.4 written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/futures-signals/0.3.4/Cargo.toml
[INFO] started frobbing futures-signals-0.3.4
[INFO] finished frobbing futures-signals-0.3.4
[INFO] frobbed toml for futures-signals-0.3.4 written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/futures-signals/0.3.4/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking futures-signals-0.3.4 against try#f45cc3094ee337acd688771b9234318046b0572d for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-0/try#f45cc3094ee337acd688771b9234318046b0572d:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/futures-signals/0.3.4:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7c197de30abb6247f4e7e0d1d2a7c7df07952f8738db366571021fd9671641c8
[INFO] running `"docker" "start" "-a" "7c197de30abb6247f4e7e0d1d2a7c7df07952f8738db366571021fd9671641c8"`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking futures-signals v0.3.4 (/opt/crater/workdir)
[INFO] [stderr] error[E0186]: method `wake` has a `self: std::sync::Arc<Self>` declaration in the trait, but not in the impl
[INFO] [stderr]   --> src/signal/broadcaster.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |     fn wake(arc_self: &Arc<Self>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `self: std::sync::Arc<Self>` in impl
[INFO] [stderr]    |
[INFO] [stderr]    = note: `wake` from trait: `fn(std::sync::Arc<Self>)`
[INFO] [stderr] 
[INFO] [stderr] error[E0046]: not all trait items implemented, missing: `wake_by_ref`
[INFO] [stderr]   --> src/signal/broadcaster.rs:74:1
[INFO] [stderr]    |
[INFO] [stderr] 74 | impl ArcWake for BroadcasterNotifier {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `wake_by_ref` in implementation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `wake_by_ref` from trait: `fn(&std::sync::Arc<Self>)`
[INFO] [stderr] 
[INFO] [stderr] error[E0053]: method `poll` has an incompatible type for trait
[INFO] [stderr]    --> src/signal/signal.rs:643:5
[INFO] [stderr]     |
[INFO] [stderr] 643 |     fn poll(self: Pin<&mut Self>, waker: &Waker) -> Poll<Self::Output> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `fn(std::pin::Pin<&mut signal::signal::ForEach<A, B, C>>, &mut std::task::Context<'_>) -> futures_core::Poll<()>`
[INFO] [stderr]                found type `fn(std::pin::Pin<&mut signal::signal::ForEach<A, B, C>>, &std::task::Waker) -> futures_core::Poll<()>`
[INFO] [stderr] 
[INFO] [stderr] error[E0053]: method `poll_next` has an incompatible type for trait
[INFO] [stderr]    --> src/signal/signal.rs:665:5
[INFO] [stderr]     |
[INFO] [stderr] 665 |     fn poll_next(self: Pin<&mut Self>, waker: &Waker) -> Poll<Option<Self::Item>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `fn(std::pin::Pin<&mut signal::signal::SignalStream<A>>, &mut std::task::Context<'_>) -> futures_core::Poll<std::option::Option<<A as signal::signal::Signal>::Item>>`
[INFO] [stderr]                found type `fn(std::pin::Pin<&mut signal::signal::SignalStream<A>>, &std::task::Waker) -> futures_core::Poll<std::option::Option<<A as signal::signal::Signal>::Item>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0053]: method `poll` has an incompatible type for trait
[INFO] [stderr]    --> src/signal/signal.rs:689:5
[INFO] [stderr]     |
[INFO] [stderr] 689 |     fn poll(self: Pin<&mut Self>, waker: &Waker) -> Poll<Self::Output> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `fn(std::pin::Pin<&mut signal::signal::SignalFuture<A>>, &mut std::task::Context<'_>) -> futures_core::Poll<<A as signal::signal::Signal>::Item>`
[INFO] [stderr]                found type `fn(std::pin::Pin<&mut signal::signal::SignalFuture<A>>, &std::task::Waker) -> futures_core::Poll<<A as signal::signal::Signal>::Item>`
[INFO] [stderr] 
[INFO] [stderr] error[E0053]: method `poll` has an incompatible type for trait
[INFO] [stderr]    --> src/signal/signal.rs:860:5
[INFO] [stderr]     |
[INFO] [stderr] 860 |     fn poll(self: Pin<&mut Self>, waker: &Waker) -> Poll<Self::Output> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `fn(std::pin::Pin<&mut signal::signal::WaitFor<A>>, &mut std::task::Context<'_>) -> futures_core::Poll<std::option::Option<<A as signal::signal::Signal>::Item>>`
[INFO] [stderr]                found type `fn(std::pin::Pin<&mut signal::signal::WaitFor<A>>, &std::task::Waker) -> futures_core::Poll<std::option::Option<<A as signal::signal::Signal>::Item>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0053]: method `poll` has an incompatible type for trait
[INFO] [stderr]    --> src/signal_vec.rs:442:5
[INFO] [stderr]     |
[INFO] [stderr] 442 |     fn poll(self: Pin<&mut Self>, waker: &Waker) -> Poll<Self::Output> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `fn(std::pin::Pin<&mut signal_vec::ForEach<A, B, C>>, &mut std::task::Context<'_>) -> futures_core::Poll<()>`
[INFO] [stderr]                found type `fn(std::pin::Pin<&mut signal_vec::ForEach<A, B, C>>, &std::task::Waker) -> futures_core::Poll<()>`
[INFO] [stderr] 
[INFO] [stderr] error[E0053]: method `poll_next` has an incompatible type for trait
[INFO] [stderr]     --> src/signal_vec.rs:1136:5
[INFO] [stderr]      |
[INFO] [stderr] 1136 |     fn poll_next(self: Pin<&mut Self>, waker: &Waker) -> Poll<Option<Self::Item>> {
[INFO] [stderr]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]      |
[INFO] [stderr]      = note: expected type `fn(std::pin::Pin<&mut signal_vec::SignalVecStream<A>>, &mut std::task::Context<'_>) -> futures_core::Poll<std::option::Option<signal_vec::VecDiff<<A as signal_vec::SignalVec>::Item>>>`
[INFO] [stderr]                 found type `fn(std::pin::Pin<&mut signal_vec::SignalVecStream<A>>, &std::task::Waker) -> futures_core::Poll<std::option::Option<signal_vec::VecDiff<<A as signal_vec::SignalVec>::Item>>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0053]: method `poll` has an incompatible type for trait
[INFO] [stderr]   --> src/future.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn poll(self: Pin<&mut Self>, waker: &Waker) -> Poll<Self::Output> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `fn(std::pin::Pin<&mut future::CancelableFuture<A, B>>, &mut std::task::Context<'_>) -> futures_core::Poll<<A as futures_core::Future>::Output>`
[INFO] [stderr]               found type `fn(std::pin::Pin<&mut future::CancelableFuture<A, B>>, &std::task::Waker) -> futures_core::Poll<<A as futures_core::Future>::Output>`
[INFO] [stderr] 
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.16
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/signal/signal.rs:474:69
[INFO] [stderr]     |
[INFO] [stderr] 474 |         match future.as_mut().as_pin_mut().map(|future| future.poll(waker)) {
[INFO] [stderr]     |                                                                     ^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&mut std::task::Context<'_>`
[INFO] [stderr]                found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/signal/signal.rs:521:32
[INFO] [stderr]     |
[INFO] [stderr] 521 |         match stream.poll_next(waker) {
[INFO] [stderr]     |                                ^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&mut std::task::Context<'_>`
[INFO] [stderr]                found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/signal/signal.rs:648:20
[INFO] [stderr]     |
[INFO] [stderr] 648 |         inner.poll(waker)
[INFO] [stderr]     |                    ^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&mut std::task::Context<'_>`
[INFO] [stderr]                found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/signal/signal.rs:817:69
[INFO] [stderr]     |
[INFO] [stderr] 817 |         match future.as_mut().as_pin_mut().map(|future| future.poll(waker)) {
[INFO] [stderr]     |                                                                     ^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&mut std::task::Context<'_>`
[INFO] [stderr]                found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/signal_vec.rs:447:20
[INFO] [stderr]     |
[INFO] [stderr] 447 |         inner.poll(waker)
[INFO] [stderr]     |                    ^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&mut std::task::Context<'_>`
[INFO] [stderr]                found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]     --> src/signal_vec.rs:1664:39
[INFO] [stderr]      |
[INFO] [stderr] 1664 |         if state.future.as_mut().poll(waker).is_ready() {
[INFO] [stderr]      |                                       ^^^^^ types differ in mutability
[INFO] [stderr]      |
[INFO] [stderr]      = note: expected type `&mut std::task::Context<'_>`
[INFO] [stderr]                 found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]     --> src/signal_vec.rs:1836:47
[INFO] [stderr]      |
[INFO] [stderr] 1836 |                 if state.future.as_mut().poll(waker).is_ready() {
[INFO] [stderr]      |                                               ^^^^^ types differ in mutability
[INFO] [stderr]      |
[INFO] [stderr]      = note: expected type `&mut std::task::Context<'_>`
[INFO] [stderr]                 found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]     --> src/signal_vec.rs:2311:43
[INFO] [stderr]      |
[INFO] [stderr] 2311 |             self.receiver.poll_next_unpin(waker)
[INFO] [stderr]      |                                           ^^^^^ types differ in mutability
[INFO] [stderr]      |
[INFO] [stderr]      = note: expected type `&mut std::task::Context<'_>`
[INFO] [stderr]                 found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/future.rs:75:53
[INFO] [stderr]    |
[INFO] [stderr] 75 |             match future.as_pin_mut().unwrap().poll(waker) {
[INFO] [stderr]    |                                                     ^^^^^ types differ in mutability
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `&mut std::task::Context<'_>`
[INFO] [stderr]               found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 18 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0046, E0053, E0186, E0308.
[INFO] [stderr] For more information about an error, try `rustc --explain E0046`.
[INFO] [stderr] error: Could not compile `futures-signals`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0186]: method `wake` has a `self: std::sync::Arc<Self>` declaration in the trait, but not in the impl
[INFO] [stderr]   --> src/signal/broadcaster.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |     fn wake(arc_self: &Arc<Self>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `self: std::sync::Arc<Self>` in impl
[INFO] [stderr]    |
[INFO] [stderr]    = note: `wake` from trait: `fn(std::sync::Arc<Self>)`
[INFO] [stderr] 
[INFO] [stderr] error[E0046]: not all trait items implemented, missing: `wake_by_ref`
[INFO] [stderr]   --> src/signal/broadcaster.rs:74:1
[INFO] [stderr]    |
[INFO] [stderr] 74 | impl ArcWake for BroadcasterNotifier {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `wake_by_ref` in implementation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `wake_by_ref` from trait: `fn(&std::sync::Arc<Self>)`
[INFO] [stderr] 
[INFO] [stderr] error[E0053]: method `poll` has an incompatible type for trait
[INFO] [stderr]    --> src/signal/signal.rs:643:5
[INFO] [stderr]     |
[INFO] [stderr] 643 |     fn poll(self: Pin<&mut Self>, waker: &Waker) -> Poll<Self::Output> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `fn(std::pin::Pin<&mut signal::signal::ForEach<A, B, C>>, &mut std::task::Context<'_>) -> futures_core::Poll<()>`
[INFO] [stderr]                found type `fn(std::pin::Pin<&mut signal::signal::ForEach<A, B, C>>, &std::task::Waker) -> futures_core::Poll<()>`
[INFO] [stderr] 
[INFO] [stderr] error[E0053]: method `poll_next` has an incompatible type for trait
[INFO] [stderr]    --> src/signal/signal.rs:665:5
[INFO] [stderr]     |
[INFO] [stderr] 665 |     fn poll_next(self: Pin<&mut Self>, waker: &Waker) -> Poll<Option<Self::Item>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `fn(std::pin::Pin<&mut signal::signal::SignalStream<A>>, &mut std::task::Context<'_>) -> futures_core::Poll<std::option::Option<<A as signal::signal::Signal>::Item>>`
[INFO] [stderr]                found type `fn(std::pin::Pin<&mut signal::signal::SignalStream<A>>, &std::task::Waker) -> futures_core::Poll<std::option::Option<<A as signal::signal::Signal>::Item>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0053]: method `poll` has an incompatible type for trait
[INFO] [stderr]    --> src/signal/signal.rs:689:5
[INFO] [stderr]     |
[INFO] [stderr] 689 |     fn poll(self: Pin<&mut Self>, waker: &Waker) -> Poll<Self::Output> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `fn(std::pin::Pin<&mut signal::signal::SignalFuture<A>>, &mut std::task::Context<'_>) -> futures_core::Poll<<A as signal::signal::Signal>::Item>`
[INFO] [stderr]                found type `fn(std::pin::Pin<&mut signal::signal::SignalFuture<A>>, &std::task::Waker) -> futures_core::Poll<<A as signal::signal::Signal>::Item>`
[INFO] [stderr] 
[INFO] [stderr] error[E0053]: method `poll` has an incompatible type for trait
[INFO] [stderr]    --> src/signal/signal.rs:860:5
[INFO] [stderr]     |
[INFO] [stderr] 860 |     fn poll(self: Pin<&mut Self>, waker: &Waker) -> Poll<Self::Output> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `fn(std::pin::Pin<&mut signal::signal::WaitFor<A>>, &mut std::task::Context<'_>) -> futures_core::Poll<std::option::Option<<A as signal::signal::Signal>::Item>>`
[INFO] [stderr]                found type `fn(std::pin::Pin<&mut signal::signal::WaitFor<A>>, &std::task::Waker) -> futures_core::Poll<std::option::Option<<A as signal::signal::Signal>::Item>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0053]: method `poll` has an incompatible type for trait
[INFO] [stderr]    --> src/signal_vec.rs:442:5
[INFO] [stderr]     |
[INFO] [stderr] 442 |     fn poll(self: Pin<&mut Self>, waker: &Waker) -> Poll<Self::Output> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `fn(std::pin::Pin<&mut signal_vec::ForEach<A, B, C>>, &mut std::task::Context<'_>) -> futures_core::Poll<()>`
[INFO] [stderr]                found type `fn(std::pin::Pin<&mut signal_vec::ForEach<A, B, C>>, &std::task::Waker) -> futures_core::Poll<()>`
[INFO] [stderr] 
[INFO] [stderr] error[E0053]: method `poll_next` has an incompatible type for trait
[INFO] [stderr]     --> src/signal_vec.rs:1136:5
[INFO] [stderr]      |
[INFO] [stderr] 1136 |     fn poll_next(self: Pin<&mut Self>, waker: &Waker) -> Poll<Option<Self::Item>> {
[INFO] [stderr]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]      |
[INFO] [stderr]      = note: expected type `fn(std::pin::Pin<&mut signal_vec::SignalVecStream<A>>, &mut std::task::Context<'_>) -> futures_core::Poll<std::option::Option<signal_vec::VecDiff<<A as signal_vec::SignalVec>::Item>>>`
[INFO] [stderr]                 found type `fn(std::pin::Pin<&mut signal_vec::SignalVecStream<A>>, &std::task::Waker) -> futures_core::Poll<std::option::Option<signal_vec::VecDiff<<A as signal_vec::SignalVec>::Item>>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0053]: method `poll` has an incompatible type for trait
[INFO] [stderr]   --> src/future.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn poll(self: Pin<&mut Self>, waker: &Waker) -> Poll<Self::Output> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `fn(std::pin::Pin<&mut future::CancelableFuture<A, B>>, &mut std::task::Context<'_>) -> futures_core::Poll<<A as futures_core::Future>::Output>`
[INFO] [stderr]               found type `fn(std::pin::Pin<&mut future::CancelableFuture<A, B>>, &std::task::Waker) -> futures_core::Poll<<A as futures_core::Future>::Output>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/signal/signal.rs:474:69
[INFO] [stderr]     |
[INFO] [stderr] 474 |         match future.as_mut().as_pin_mut().map(|future| future.poll(waker)) {
[INFO] [stderr]     |                                                                     ^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&mut std::task::Context<'_>`
[INFO] [stderr]                found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/signal/signal.rs:521:32
[INFO] [stderr]     |
[INFO] [stderr] 521 |         match stream.poll_next(waker) {
[INFO] [stderr]     |                                ^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&mut std::task::Context<'_>`
[INFO] [stderr]                found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/signal/signal.rs:648:20
[INFO] [stderr]     |
[INFO] [stderr] 648 |         inner.poll(waker)
[INFO] [stderr]     |                    ^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&mut std::task::Context<'_>`
[INFO] [stderr]                found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/signal/signal.rs:817:69
[INFO] [stderr]     |
[INFO] [stderr] 817 |         match future.as_mut().as_pin_mut().map(|future| future.poll(waker)) {
[INFO] [stderr]     |                                                                     ^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&mut std::task::Context<'_>`
[INFO] [stderr]                found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/signal_vec.rs:447:20
[INFO] [stderr]     |
[INFO] [stderr] 447 |         inner.poll(waker)
[INFO] [stderr]     |                    ^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&mut std::task::Context<'_>`
[INFO] [stderr]                found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]     --> src/signal_vec.rs:1664:39
[INFO] [stderr]      |
[INFO] [stderr] 1664 |         if state.future.as_mut().poll(waker).is_ready() {
[INFO] [stderr]      |                                       ^^^^^ types differ in mutability
[INFO] [stderr]      |
[INFO] [stderr]      = note: expected type `&mut std::task::Context<'_>`
[INFO] [stderr]                 found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]     --> src/signal_vec.rs:1836:47
[INFO] [stderr]      |
[INFO] [stderr] 1836 |                 if state.future.as_mut().poll(waker).is_ready() {
[INFO] [stderr]      |                                               ^^^^^ types differ in mutability
[INFO] [stderr]      |
[INFO] [stderr]      = note: expected type `&mut std::task::Context<'_>`
[INFO] [stderr]                 found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]     --> src/signal_vec.rs:2311:43
[INFO] [stderr]      |
[INFO] [stderr] 2311 |             self.receiver.poll_next_unpin(waker)
[INFO] [stderr]      |                                           ^^^^^ types differ in mutability
[INFO] [stderr]      |
[INFO] [stderr]      = note: expected type `&mut std::task::Context<'_>`
[INFO] [stderr]                 found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/future.rs:75:53
[INFO] [stderr]    |
[INFO] [stderr] 75 |             match future.as_pin_mut().unwrap().poll(waker) {
[INFO] [stderr]    |                                                     ^^^^^ types differ in mutability
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `&mut std::task::Context<'_>`
[INFO] [stderr]               found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 18 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0046, E0053, E0186, E0308.
[INFO] [stderr] For more information about an error, try `rustc --explain E0046`.
[INFO] [stderr] error: Could not compile `futures-signals`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7c197de30abb6247f4e7e0d1d2a7c7df07952f8738db366571021fd9671641c8"`
[INFO] running `"docker" "rm" "-f" "7c197de30abb6247f4e7e0d1d2a7c7df07952f8738db366571021fd9671641c8"`
[INFO] [stdout] 7c197de30abb6247f4e7e0d1d2a7c7df07952f8738db366571021fd9671641c8