[INFO] updating cached repository jsdw/weave
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jsdw/weave
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jsdw/weave" "work/ex/beta-1.38-1/sources/1.37.0/gh/jsdw/weave"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jsdw/weave'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jsdw/weave" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jsdw/weave"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jsdw/weave'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 131853adc83de47228964fb4e969b34d20a4cc11
[INFO] sha for GitHub repo jsdw/weave: 131853adc83de47228964fb4e969b34d20a4cc11
[INFO] validating manifest of jsdw/weave on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jsdw/weave on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jsdw/weave
[INFO] finished frobbing jsdw/weave
[INFO] frobbed toml for jsdw/weave written to work/ex/beta-1.38-1/sources/1.37.0/gh/jsdw/weave/Cargo.toml
[INFO] started frobbing jsdw/weave
[INFO] finished frobbing jsdw/weave
[INFO] frobbed toml for jsdw/weave written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jsdw/weave/Cargo.toml
[INFO] crate jsdw/weave already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing jsdw/weave against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jsdw/weave:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 7d56720e6e90da3eebb739c7d310fcfdd0afc632e0678decd7d7e693efafccde
[INFO] running `"docker" "start" "-a" "7d56720e6e90da3eebb739c7d310fcfdd0afc632e0678decd7d7e693efafccde"`
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.15
[INFO] [stderr]    Compiling openssl v0.10.21
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling openssl-sys v0.9.45
[INFO] [stderr]    Compiling tokio-threadpool v0.1.14
[INFO] [stderr]    Compiling env_logger v0.6.1
[INFO] [stderr]    Compiling h2 v0.1.18
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.15
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.15
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.15
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.15
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling tokio v0.1.19
[INFO] [stderr]    Compiling hyper v0.12.28
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.15
[INFO] [stderr]    Compiling futures-preview v0.3.0-alpha.15
[INFO] [stderr]    Compiling hyper-tls v0.3.2
[INFO] [stderr]    Compiling weave v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/main.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(async_await, await_macro)]
[INFO] [stderr]   |                         ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: subsumed by `.await` syntax
[INFO] [stderr]  --> src/main.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(async_await, await_macro)]
[INFO] [stderr]   |                         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(async_await, await_macro)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `weave`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7d56720e6e90da3eebb739c7d310fcfdd0afc632e0678decd7d7e693efafccde"`
[INFO] running `"docker" "rm" "-f" "7d56720e6e90da3eebb739c7d310fcfdd0afc632e0678decd7d7e693efafccde"`
[INFO] [stdout] 7d56720e6e90da3eebb739c7d310fcfdd0afc632e0678decd7d7e693efafccde