[INFO] crate coconut 0.1.0 is already in cache
[INFO] testing coconut-0.1.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate coconut 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate coconut 0.1.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6e741f51ec06633af0bcdc2245f4febbbd40d7b8700679c6ee213f47375a2109
[INFO] running `"docker" "start" "-a" "6e741f51ec06633af0bcdc2245f4febbbd40d7b8700679c6ee213f47375a2109"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling coconut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0437]: type `SinkError` is not a member of trait `Sink`
[INFO] [stderr]    --> src/lib.rs:150:5
[INFO] [stderr]     |
[INFO] [stderr] 150 |     type SinkError = FramesError<C::Error>;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `Sink`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(futures_api)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0220]: associated type `SinkError` not found for `Self`
[INFO] [stderr]    --> src/lib.rs:152:89
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn poll_ready(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll<Result<(), Self::SinkError>> {
[INFO] [stderr]     |                                                                                         ^^^^^^^^^ associated type `SinkError` not found
[INFO] [stderr] 
[INFO] [stderr] error[E0220]: associated type `SinkError` not found for `Self`
[INFO] [stderr]    --> src/lib.rs:156:70
[INFO] [stderr]     |
[INFO] [stderr] 156 |     fn start_send(self: Pin<&mut Self>, item: T) -> Result<(), Self::SinkError> {
[INFO] [stderr]     |                                                                      ^^^^^^^^^ associated type `SinkError` not found
[INFO] [stderr] 
[INFO] [stderr] error[E0220]: associated type `SinkError` not found for `Self`
[INFO] [stderr]    --> src/lib.rs:162:92
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::SinkError>> {
[INFO] [stderr]     |                                                                                            ^^^^^^^^^ associated type `SinkError` not found
[INFO] [stderr] 
[INFO] [stderr] error[E0220]: associated type `SinkError` not found for `Self`
[INFO] [stderr]    --> src/lib.rs:178:92
[INFO] [stderr]     |
[INFO] [stderr] 178 |     fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::SinkError>> {
[INFO] [stderr]     |                                                                                            ^^^^^^^^^ associated type `SinkError` not found
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0220, E0437, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0220`.
[INFO] [stderr] error: could not compile `coconut`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "6e741f51ec06633af0bcdc2245f4febbbd40d7b8700679c6ee213f47375a2109"`
[INFO] running `"docker" "rm" "-f" "6e741f51ec06633af0bcdc2245f4febbbd40d7b8700679c6ee213f47375a2109"`
[INFO] [stdout] 6e741f51ec06633af0bcdc2245f4febbbd40d7b8700679c6ee213f47375a2109