[INFO] updating cached repository https://github.com/karitra/zorca
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] 9e316c138bce98404316cf1cdd840fd85ef40eda
[INFO] testing karitra/zorca against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaritra%2Fzorca" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/karitra/zorca on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/karitra/zorca
[INFO] finished tweaking git repo https://github.com/karitra/zorca
[INFO] tweaked toml for git repo https://github.com/karitra/zorca written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/karitra/zorca already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] a2d56a581bf926a08e0a2b95ab85c0c7315e2fa6f55945ead8f9c9d305c4723e
[INFO] running `"docker" "start" "-a" "a2d56a581bf926a08e0a2b95ab85c0c7315e2fa6f55945ead8f9c9d305c4723e"`
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling rmp v0.8.7
[INFO] [stderr]    Compiling serde_bytes v0.10.2
[INFO] [stderr]    Compiling serde_json v1.0.5
[INFO] [stderr]    Compiling tokio-core v0.1.10
[INFO] [stderr]    Compiling textwrap v0.8.0
[INFO] [stderr]    Compiling rmp-serde v0.13.7
[INFO] [stderr]    Compiling rmpv v0.4.0
[INFO] [stderr]    Compiling clap v2.26.2
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling cocaine v0.9.0 (https://github.com/3Hren/cocaine-framework-rust?branch=develop#4ebe4203)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/cocaine-framework-rust-43cd5beedfd32c6d/4ebe420/src/lib.rs:96:1
[INFO] [stderr]    |
[INFO] [stderr] 96 | #![feature(conservative_impl_trait)]
[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 `cocaine`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a2d56a581bf926a08e0a2b95ab85c0c7315e2fa6f55945ead8f9c9d305c4723e"`
[INFO] running `"docker" "rm" "-f" "a2d56a581bf926a08e0a2b95ab85c0c7315e2fa6f55945ead8f9c9d305c4723e"`
[INFO] [stdout] a2d56a581bf926a08e0a2b95ab85c0c7315e2fa6f55945ead8f9c9d305c4723e