[INFO] crate arcon 0.1.3 is already in cache
[INFO] checking arcon-0.1.3 against master#6250d56355d72264ece721e8d0dc95b16a6824b1 for pr-68350
[INFO] extracting crate arcon 0.1.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate arcon 0.1.3 on toolchain 6250d56355d72264ece721e8d0dc95b16a6824b1
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate arcon 0.1.3
[INFO] finished tweaking crates.io crate arcon 0.1.3
[INFO] tweaked toml for crates.io crate arcon 0.1.3 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "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=forbid" "-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" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ca5418141947003f785ad687add4dea4a7c5796ecda12a5af6cf5839e180912b
[INFO] running `"docker" "start" "-a" "ca5418141947003f785ad687add4dea4a7c5796ecda12a5af6cf5839e180912b"`
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling protobuf v2.10.1
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking sequence_trie v0.3.6
[INFO] [stderr]     Checking bitfields v0.2.0
[INFO] [stderr]     Checking as_num v0.2.5
[INFO] [stderr]     Checking oncemutex v0.1.1
[INFO] [stderr]    Compiling weld v0.3.1
[INFO] [stderr]     Checking arcon_extra v0.1.0
[INFO] [stderr]     Checking synchronoise v0.4.0
[INFO] [stderr]     Checking arcon_backend v0.1.1
[INFO] [stderr]    Compiling protoc v2.10.1
[INFO] [stderr]     Checking synchronoise v1.0.0
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking tokio-retry v0.2.0
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]    Compiling kompact-actor-derive v0.8.1
[INFO] [stderr]    Compiling kompact-component-derive v0.8.1
[INFO] [stderr]    Compiling arcon_macros v0.1.2
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]    Compiling kompact-actor-derive v0.7.0
[INFO] [stderr]    Compiling kompact-component-derive v0.7.0
[INFO] [stderr]    Compiling keyby v0.2.0
[INFO] [stderr]     Checking spaniel v0.1.0
[INFO] [stderr]    Compiling arr_macro_impl v0.1.3
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking executors v0.4.4
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]     Checking slog-term v2.4.2
[INFO] [stderr]     Checking arr_macro v0.1.3
[INFO] [stderr]     Checking executors v0.5.3
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking kompact v0.7.0
[INFO] [stderr]     Checking kompact v0.8.1
[INFO] [stderr] error[E0520]: `execute_send` specializes an item from a parent `impl`, but that item is not marked `default`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/kompact-0.7.0/src/component.rs:329:5
[INFO] [stderr]     |
[INFO] [stderr] 326 |   impl<A: ActorRaw> ExecuteSend for A {}
[INFO] [stderr]     |   -------------------------------------- parent `impl` is here
[INFO] [stderr] ...
[INFO] [stderr] 329 | /     fn execute_send(&mut self, env: DispatchEnvelope) -> () {
[INFO] [stderr] 330 | |         Dispatcher::receive(self, env)
[INFO] [stderr] 331 | |     }
[INFO] [stderr]     | |_____^ cannot specialize default item `execute_send`
[INFO] [stderr]     |
[INFO] [stderr]     = note: to specialize, `execute_send` in the parent `impl` must be marked `default`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0520`.
[INFO] [stderr] error: could not compile `kompact`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ca5418141947003f785ad687add4dea4a7c5796ecda12a5af6cf5839e180912b"`
[INFO] running `"docker" "rm" "-f" "ca5418141947003f785ad687add4dea4a7c5796ecda12a5af6cf5839e180912b"`
[INFO] [stdout] ca5418141947003f785ad687add4dea4a7c5796ecda12a5af6cf5839e180912b