[INFO] crate catt-core 0.1.0 is already in cache
[INFO] checking catt-core-0.1.0 against beta-2019-10-27 for pr-65897
[INFO] extracting crate catt-core 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate catt-core 0.1.0 on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate catt-core 0.1.0
[INFO] finished tweaking crates.io crate catt-core 0.1.0
[INFO] tweaked toml for crates.io crate catt-core 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=allow" "-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" "+beta-2019-10-27" "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] df79412cf41406efa290a3b3ce132a8c41581cef1921c42ec595fc2e7ac6b294
[INFO] running `"docker" "start" "-a" "df79412cf41406efa290a3b3ce132a8c41581cef1921c42ec595fc2e7ac6b294"`
[INFO] [stderr]     Checking toml v0.2.1
[INFO] [stderr]     Checking catt-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `tokio_core::channel`
[INFO] [stderr]  --> src/bus.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 | use tokio_core::channel::Receiver;
[INFO] [stderr]   |                 ^^^^^^^ could not find `channel` in `tokio_core`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `tokio_core::channel`
[INFO] [stderr]  --> src/binding.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 | use tokio_core::channel::Receiver;
[INFO] [stderr]   |                 ^^^^^^^ could not find `channel` in `tokio_core`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(conservative_impl_trait)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(question_mark)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `tokio_core::channel`
[INFO] [stderr]  --> src/bus.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 | use tokio_core::channel::Receiver;
[INFO] [stderr]   |                 ^^^^^^^ could not find `channel` in `tokio_core`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `tokio_core::channel`
[INFO] [stderr]  --> src/binding.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 | use tokio_core::channel::Receiver;
[INFO] [stderr]   |                 ^^^^^^^ could not find `channel` in `tokio_core`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(conservative_impl_trait)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(question_mark)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `catt-core`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `catt-core`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "df79412cf41406efa290a3b3ce132a8c41581cef1921c42ec595fc2e7ac6b294"`
[INFO] running `"docker" "rm" "-f" "df79412cf41406efa290a3b3ce132a8c41581cef1921c42ec595fc2e7ac6b294"`
[INFO] [stdout] df79412cf41406efa290a3b3ce132a8c41581cef1921c42ec595fc2e7ac6b294