[INFO] cloning repository https://github.com/stbuehler/rust-cofutures-poc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stbuehler/rust-cofutures-poc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstbuehler%2Frust-cofutures-poc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstbuehler%2Frust-cofutures-poc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cde9170e5a2b534ad6362d54231a581056ca77fd
[INFO] documenting stbuehler/rust-cofutures-poc against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstbuehler%2Frust-cofutures-poc" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stbuehler/rust-cofutures-poc on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stbuehler/rust-cofutures-poc
[INFO] finished tweaking git repo https://github.com/stbuehler/rust-cofutures-poc
[INFO] tweaked toml for git repo https://github.com/stbuehler/rust-cofutures-poc written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/stbuehler/rust-cofutures-poc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-core-preview v0.3.0-alpha.13
[INFO] [stderr]   Downloaded futures-select-macro-preview v0.3.0-alpha.13
[INFO] [stderr]   Downloaded futures-sink-preview v0.3.0-alpha.13
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.4
[INFO] [stderr]   Downloaded futures-io-preview v0.3.0-alpha.13
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.2
[INFO] [stderr]   Downloaded futures-executor-preview v0.3.0-alpha.13
[INFO] [stderr]   Downloaded futures-channel-preview v0.3.0-alpha.13
[INFO] [stderr]   Downloaded futures-util-preview v0.3.0-alpha.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a7de95c9d9c6b8c89492ff6d5700399b1ef35ba1ea9c0daf5ec2fb6d88cbff8
[INFO] running `Command { std: "docker" "start" "-a" "1a7de95c9d9c6b8c89492ff6d5700399b1ef35ba1ea9c0daf5ec2fb6d88cbff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a7de95c9d9c6b8c89492ff6d5700399b1ef35ba1ea9c0daf5ec2fb6d88cbff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a7de95c9d9c6b8c89492ff6d5700399b1ef35ba1ea9c0daf5ec2fb6d88cbff8", kill_on_drop: false }`
[INFO] [stdout] 1a7de95c9d9c6b8c89492ff6d5700399b1ef35ba1ea9c0daf5ec2fb6d88cbff8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7dc5ad53a463035154e97c49e9807b582e77a103c6eb814e986e61c863d6cf7
[INFO] running `Command { std: "docker" "start" "-a" "f7dc5ad53a463035154e97c49e9807b582e77a103c6eb814e986e61c863d6cf7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling libc v0.2.49
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking either v1.5.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.2
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking cofutures-inner v0.1.0 (/opt/rustwide/workdir/cofutures-inner)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> cofutures-inner/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(generator_trait, futures_api)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `poll` has an incompatible type for trait
[INFO] [stdout]   --> cofutures-inner/src/lib.rs:82:36
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn poll(self: Pin<&mut Self>, lw: &Waker) -> Poll<Self::Output> {
[INFO] [stdout]    |                                       ^^^^^^
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       types differ in mutability
[INFO] [stdout]    |                                       help: change the parameter type to match the trait: `&mut Context<'_>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected fn pointer `fn(Pin<&mut CoAsync<Output, T, F>>, &mut Context<'_>) -> Poll<_>`
[INFO] [stdout]               found fn pointer `fn(Pin<&mut CoAsync<Output, T, F>>, &Waker) -> Poll<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.13
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> cofutures-inner/src/lib.rs:31:11
[INFO] [stdout]    |
[INFO] [stdout] 31 |             f.poll(waker)
[INFO] [stdout]    |                    ^^^^^ types differ in mutability
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected mutable reference `&mut Context<'_>`
[INFO] [stdout]                       found reference `&Waker`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]    --> cofutures-inner/src/lib.rs:98:48
[INFO] [stdout]     |
[INFO] [stdout] 98  |                 match unsafe { Pin::new_unchecked(running).resume() } {
[INFO] [stdout]     |                                                            ^^^^^^- supplied 0 arguments
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout] help: expected the unit value `()`; create it with empty parentheses
[INFO] [stdout]     |
[INFO] [stdout] 98  |                 match unsafe { Pin::new_unchecked(running).resume(()) } {
[INFO] [stdout]     |                                                                   ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0053, E0061, E0308, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0053`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cofutures-inner` due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.13/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(futures_api)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `poll` has an incompatible type for trait
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.13/src/future/future_obj.rs:64:42
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn poll(self: Pin<&mut Self>, waker: &Waker) -> Poll<T> {
[INFO] [stdout]    |                                          ^^^^^^
[INFO] [stdout]    |                                          |
[INFO] [stdout]    |                                          types differ in mutability
[INFO] [stdout]    |                                          help: change the parameter type to match the trait: `&mut Context<'_>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected fn pointer `fn(std::pin::Pin<&mut future_obj::LocalFutureObj<'a, T>>, &mut Context<'_>) -> std::task::Poll<_>`
[INFO] [stdout]               found fn pointer `fn(std::pin::Pin<&mut future_obj::LocalFutureObj<'a, T>>, &std::task::Waker) -> std::task::Poll<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `poll` has an incompatible type for trait
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.13/src/future/future_obj.rs:114:42
[INFO] [stdout]     |
[INFO] [stdout] 114 |     fn poll(self: Pin<&mut Self>, waker: &Waker) -> Poll<T> {
[INFO] [stdout]     |                                          ^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          types differ in mutability
[INFO] [stdout]     |                                          help: change the parameter type to match the trait: `&mut Context<'_>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected fn pointer `fn(std::pin::Pin<&mut future_obj::FutureObj<'a, T>>, &mut Context<'_>) -> std::task::Poll<_>`
[INFO] [stdout]                found fn pointer `fn(std::pin::Pin<&mut future_obj::FutureObj<'a, T>>, &std::task::Waker) -> std::task::Poll<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.13/src/future/mod.rs:86:19
[INFO] [stdout]    |
[INFO] [stdout] 86 |         self.poll(waker)
[INFO] [stdout]    |                   ^^^^^ types differ in mutability
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected mutable reference `&mut Context<'_>`
[INFO] [stdout]                       found reference `&std::task::Waker`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.13/src/future/future_obj.rs:118:44
[INFO] [stdout]     |
[INFO] [stdout] 118 |         LocalFutureObj::poll(pinned_field, waker)
[INFO] [stdout]     |                                            ^^^^^ types differ in mutability
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut Context<'_>`
[INFO] [stdout]                        found reference `&std::task::Waker`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.13/src/future/future_obj.rs:165:20
[INFO] [stdout]     |
[INFO] [stdout] 165 |         F::poll(p, waker)
[INFO] [stdout]     |                    ^^^^^ types differ in mutability
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut Context<'_>`
[INFO] [stdout]                        found reference `&std::task::Waker`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.13/src/future/future_obj.rs:182:25
[INFO] [stdout]     |
[INFO] [stdout] 182 |         F::poll(future, waker)
[INFO] [stdout]     |                         ^^^^^ types differ in mutability
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut Context<'_>`
[INFO] [stdout]                        found reference `&std::task::Waker`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.13/src/future/future_obj.rs:203:26
[INFO] [stdout]     |
[INFO] [stdout] 203 |             F::poll(pin, waker)
[INFO] [stdout]     |                          ^^^^^ types differ in mutability
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut Context<'_>`
[INFO] [stdout]                        found reference `&std::task::Waker`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.13/src/future/future_obj.rs:225:26
[INFO] [stdout]     |
[INFO] [stdout] 225 |             F::poll(pin, waker)
[INFO] [stdout]     |                          ^^^^^ types differ in mutability
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut Context<'_>`
[INFO] [stdout]                        found reference `&std::task::Waker`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0053, E0308, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0053`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f7dc5ad53a463035154e97c49e9807b582e77a103c6eb814e986e61c863d6cf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7dc5ad53a463035154e97c49e9807b582e77a103c6eb814e986e61c863d6cf7", kill_on_drop: false }`
[INFO] [stdout] f7dc5ad53a463035154e97c49e9807b582e77a103c6eb814e986e61c863d6cf7
