[INFO] updating cached repository https://github.com/samzhuwj/substrate-contracts-adder
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ce517faaf3e2ec98dbc8925f0395a48304bb0f67
[INFO] checking samzhuwj/substrate-contracts-adder against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamzhuwj%2Fsubstrate-contracts-adder" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/samzhuwj/substrate-contracts-adder 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 git repo https://github.com/samzhuwj/substrate-contracts-adder
[INFO] finished tweaking git repo https://github.com/samzhuwj/substrate-contracts-adder
[INFO] tweaked toml for git repo https://github.com/samzhuwj/substrate-contracts-adder written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/samzhuwj/substrate-contracts-adder already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: unused manifest key: dependencies.parity-codec-derive.default-feature
[INFO] [stderr] warning: unused manifest key: dependencies.parity-codec.default-feature
[INFO] [stderr] warning: unused manifest key: profile.realse
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 38250222b75602bfd2ebe9e8f38738eb12b0209c985422da934f5099d566c31a
[INFO] running `"docker" "start" "-a" "38250222b75602bfd2ebe9e8f38738eb12b0209c985422da934f5099d566c31a"`
[INFO] [stderr] warning: unused manifest key: dependencies.parity-codec-derive.default-feature
[INFO] [stderr] warning: unused manifest key: dependencies.parity-codec.default-feature
[INFO] [stderr] warning: unused manifest key: profile.realse
[INFO] [stderr]    Compiling wee_alloc v0.4.2
[INFO] [stderr]     Checking parity-codec v2.1.5
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/wee_alloc-0.4.2/src/lib.rs:228:1
[INFO] [stderr]     |
[INFO] [stderr] 228 | #![feature(alloc, allocator_api, core_intrinsics)]
[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 `wee_alloc`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "38250222b75602bfd2ebe9e8f38738eb12b0209c985422da934f5099d566c31a"`
[INFO] running `"docker" "rm" "-f" "38250222b75602bfd2ebe9e8f38738eb12b0209c985422da934f5099d566c31a"`
[INFO] [stdout] 38250222b75602bfd2ebe9e8f38738eb12b0209c985422da934f5099d566c31a