[INFO] crate fluence_sdk 0.0.6 is already in cache
[INFO] checking fluence_sdk-0.0.6 against beta-2019-10-27 for pr-65897
[INFO] extracting crate fluence_sdk 0.0.6 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate fluence_sdk 0.0.6 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 fluence_sdk 0.0.6
[INFO] finished tweaking crates.io crate fluence_sdk 0.0.6
[INFO] tweaked toml for crates.io crate fluence_sdk 0.0.6 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 3c2cf1d6e1643b7c08419ec147d6f4d7211825ef7b7de7966c96f55c7c3a7370
[INFO] running `"docker" "start" "-a" "3c2cf1d6e1643b7c08419ec147d6f4d7211825ef7b7de7966c96f55c7c3a7370"`
[INFO] [stderr]    Compiling winapi v0.3.8
[INFO] [stderr]     Checking fluence_sdk v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(allocator_api)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `fluence_sdk`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "3c2cf1d6e1643b7c08419ec147d6f4d7211825ef7b7de7966c96f55c7c3a7370"`
[INFO] running `"docker" "rm" "-f" "3c2cf1d6e1643b7c08419ec147d6f4d7211825ef7b7de7966c96f55c7c3a7370"`
[INFO] [stdout] 3c2cf1d6e1643b7c08419ec147d6f4d7211825ef7b7de7966c96f55c7c3a7370