[INFO] fetching crate coconut 0.1.0...
[INFO] checking coconut-0.1.0 against beta for pr-78714
[INFO] extracting crate coconut 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate coconut 0.1.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate coconut 0.1.0
[INFO] finished tweaking crates.io crate coconut 0.1.0
[INFO] tweaked toml for crates.io crate coconut 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3243bafd2af2cc490595134a3c0951dbe3eb0e7648c5a5ac4093f9f64bb2dacd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3243bafd2af2cc490595134a3c0951dbe3eb0e7648c5a5ac4093f9f64bb2dacd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3243bafd2af2cc490595134a3c0951dbe3eb0e7648c5a5ac4093f9f64bb2dacd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3243bafd2af2cc490595134a3c0951dbe3eb0e7648c5a5ac4093f9f64bb2dacd", kill_on_drop: false }`
[INFO] [stdout] 3243bafd2af2cc490595134a3c0951dbe3eb0e7648c5a5ac4093f9f64bb2dacd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7f71235ddcbdb8b8d47f6af6fe088da4cacdcf0d85477230a3e1db9df9bb2edf
[INFO] running `Command { std: "docker" "start" "-a" "7f71235ddcbdb8b8d47f6af6fe088da4cacdcf0d85477230a3e1db9df9bb2edf", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking coconut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `coconut`
[INFO] [stdout] error[E0437]: type `SinkError` is not a member of trait `Sink`
[INFO] [stdout]    --> src/lib.rs:150:5
[INFO] [stdout]     |
[INFO] [stdout] 150 |     type SinkError = FramesError<C::Error>;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `Sink`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(futures_api)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] error[E0220]: associated type `SinkError` not found for `Self`
[INFO] [stdout]    --> src/lib.rs:152:89
[INFO] [stdout]     |
[INFO] [stdout] 152 |     fn poll_ready(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll<Result<(), Self::SinkError>> {
[INFO] [stdout]     |                                                                                         ^^^^^^^^^ associated type `SinkError` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0220]: associated type `SinkError` not found for `Self`
[INFO] [stdout]    --> src/lib.rs:156:70
[INFO] [stdout]     |
[INFO] [stdout] 156 |     fn start_send(self: Pin<&mut Self>, item: T) -> Result<(), Self::SinkError> {
[INFO] [stdout]     |                                                                      ^^^^^^^^^ associated type `SinkError` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `SinkError` not found for `Self`
[INFO] [stdout]    --> src/lib.rs:162:92
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::SinkError>> {
[INFO] [stdout]     |                                                                                            ^^^^^^^^^ associated type `SinkError` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `SinkError` not found for `Self`
[INFO] [stdout]    --> src/lib.rs:178:92
[INFO] [stdout]     |
[INFO] [stdout] 178 |     fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::SinkError>> {
[INFO] [stdout]     |                                                                                            ^^^^^^^^^ associated type `SinkError` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0220, E0437, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0220`.
[INFO] [stdout] 
[INFO] [stdout] error[E0437]: type `SinkError` is not a member of trait `Sink`
[INFO] [stdout]    --> src/lib.rs:150:5
[INFO] [stdout]     |
[INFO] [stdout] 150 |     type SinkError = FramesError<C::Error>;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `Sink`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(futures_api)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `SinkError` not found for `Self`
[INFO] [stdout]    --> src/lib.rs:152:89
[INFO] [stdout]     |
[INFO] [stdout] 152 |     fn poll_ready(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll<Result<(), Self::SinkError>> {
[INFO] [stdout]     |                                                                                         ^^^^^^^^^ associated type `SinkError` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `SinkError` not found for `Self`
[INFO] [stdout]    --> src/lib.rs:156:70
[INFO] [stdout]     |
[INFO] [stdout] 156 |     fn start_send(self: Pin<&mut Self>, item: T) -> Result<(), Self::SinkError> {
[INFO] [stdout]     |                                                                      ^^^^^^^^^ associated type `SinkError` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `SinkError` not found for `Self`
[INFO] [stdout]    --> src/lib.rs:162:92
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::SinkError>> {
[INFO] [stdout]     |                                                                                            ^^^^^^^^^ associated type `SinkError` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `SinkError` not found for `Self`
[INFO] [stdout]    --> src/lib.rs:178:92
[INFO] [stdout]     |
[INFO] [stdout] 178 |     fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::SinkError>> {
[INFO] [stdout]     |                                                                                            ^^^^^^^^^ associated type `SinkError` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0220, E0437, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0220`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7f71235ddcbdb8b8d47f6af6fe088da4cacdcf0d85477230a3e1db9df9bb2edf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f71235ddcbdb8b8d47f6af6fe088da4cacdcf0d85477230a3e1db9df9bb2edf", kill_on_drop: false }`
[INFO] [stdout] 7f71235ddcbdb8b8d47f6af6fe088da4cacdcf0d85477230a3e1db9df9bb2edf