[INFO] updating cached repository https://github.com/3Hren/cocaine-http-proxy
[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] ccf57256235625fc411d85184e0c61f85c79a7c9
[INFO] testing 3Hren/cocaine-http-proxy against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2F3Hren%2Fcocaine-http-proxy" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/3Hren/cocaine-http-proxy 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/3Hren/cocaine-http-proxy
[INFO] finished tweaking git repo https://github.com/3Hren/cocaine-http-proxy
[INFO] tweaked toml for git repo https://github.com/3Hren/cocaine-http-proxy written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/3Hren/cocaine-http-proxy 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/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] 54a5efbcd4d6d8013e4790898458c8aaf77da184ed0f0f2d7e1368ddbf68a52f
[INFO] running `"docker" "start" "-a" "54a5efbcd4d6d8013e4790898458c8aaf77da184ed0f0f2d7e1368ddbf68a52f"`
[INFO] [stderr]    Compiling libc v0.2.26
[INFO] [stderr]    Compiling byteorder v1.1.0
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling futures v0.1.15
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling num-traits v0.1.39
[INFO] [stderr]    Compiling serde v1.0.10
[INFO] [stderr]    Compiling lazycell v0.4.0
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling scoped-tls v0.1.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling linked-hash-map v0.3.0
[INFO] [stderr]    Compiling itoa v0.3.1
[INFO] [stderr]    Compiling smallvec v0.2.1
[INFO] [stderr]    Compiling lazy_static v0.2.8
[INFO] [stderr]    Compiling dtoa v0.4.1
[INFO] [stderr]    Compiling take v0.1.0
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling safemem v0.2.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling unicode-segmentation v1.2.0
[INFO] [stderr]    Compiling httparse v1.2.3
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling regex-syntax v0.4.1
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling linked-hash-map v0.4.2
[INFO] [stderr]    Compiling percent-encoding v1.0.0
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling either v1.1.0
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling base64 v0.6.0
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling iovec v0.1.0
[INFO] [stderr]    Compiling net2 v0.2.29
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling term_size v0.3.0
[INFO] [stderr]    Compiling num_cpus v1.6.2
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling atty v0.2.2
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling rmp v0.8.6
[INFO] [stderr]    Compiling bytes v0.4.4
[INFO] [stderr]    Compiling textwrap v0.7.0
[INFO] [stderr]    Compiling unicase v2.0.0
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling mio v0.6.9
[INFO] [stderr]    Compiling uuid v0.4.0
[INFO] [stderr]    Compiling clap v2.26.0
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling futures-cpupool v0.1.5
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling tokio-io v0.1.2
[INFO] [stderr]    Compiling mime v0.3.2
[INFO] [stderr]    Compiling mio-uds v0.6.4
[INFO] [stderr]    Compiling tokio-core v0.1.8
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling tokio-uds v0.1.5
[INFO] [stderr]    Compiling serde_bytes v0.10.1
[INFO] [stderr]    Compiling rmp-serde v0.13.4
[INFO] [stderr]    Compiling serde_json v1.0.2
[INFO] [stderr]    Compiling serde_yaml v0.7.1
[INFO] [stderr]    Compiling hyper v0.11.1 (https://github.com/hyperium/hyper?rev=fc5b9cce3176776e4c916cd1b907b1649a538f00#fc5b9cce)
[INFO] [stderr]    Compiling rmpv v0.4.0
[INFO] [stderr]    Compiling cocaine v0.9.1
[INFO] [stderr]    Compiling jsonrpc-core v7.0.1
[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/cocaine-0.9.1/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" "54a5efbcd4d6d8013e4790898458c8aaf77da184ed0f0f2d7e1368ddbf68a52f"`
[INFO] running `"docker" "rm" "-f" "54a5efbcd4d6d8013e4790898458c8aaf77da184ed0f0f2d7e1368ddbf68a52f"`
[INFO] [stdout] 54a5efbcd4d6d8013e4790898458c8aaf77da184ed0f0f2d7e1368ddbf68a52f