[INFO] updating cached repository skade/async-await
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/skade/async-await
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/skade/async-await" "work/ex/beta-1.38-1/sources/1.37.0/gh/skade/async-await"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/skade/async-await'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/skade/async-await" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/skade/async-await"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/skade/async-await'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 90866b4824665ba35480f68ca2645b277227d06e
[INFO] sha for GitHub repo skade/async-await: 90866b4824665ba35480f68ca2645b277227d06e
[INFO] validating manifest of skade/async-await 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 skade/async-await 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 skade/async-await
[INFO] finished frobbing skade/async-await
[INFO] frobbed toml for skade/async-await written to work/ex/beta-1.38-1/sources/1.37.0/gh/skade/async-await/Cargo.toml
[INFO] started frobbing skade/async-await
[INFO] finished frobbing skade/async-await
[INFO] frobbed toml for skade/async-await written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/skade/async-await/Cargo.toml
[INFO] crate skade/async-await 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 skade/async-await 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-6/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/skade/async-await:/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] be0755089fcf2d73323c39409d0bc50dd0ca43e23aaf82570bbbc2d985ea9409
[INFO] running `"docker" "start" "-a" "be0755089fcf2d73323c39409d0bc50dd0ca43e23aaf82570bbbc2d985ea9409"`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]    Compiling async-await v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]    --> src/main.rs:128:5
[INFO] [stderr]     |
[INFO] [stderr] 128 |     await!(w);
[INFO] [stderr]     |     ^^^^^^^^^ help: `await` is a postfix operation: `w.await`
[INFO] [stderr] 
[INFO] [stderr] warning[E0705]: the feature `rust_2018_preview` is included in the Rust 2018 edition
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(rust_2018_preview, async_await, await_macro, futures_api, pin, arbitrary_self_types)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/main.rs:1:44
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(rust_2018_preview, async_await, await_macro, futures_api, pin, arbitrary_self_types)]
[INFO] [stderr]   |                                            ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: subsumed by `.await` syntax
[INFO] [stderr]  --> src/main.rs:1:44
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(rust_2018_preview, async_await, await_macro, futures_api, pin, arbitrary_self_types)]
[INFO] [stderr]   |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::future::FutureObj`
[INFO] [stderr]  --> src/main.rs:3:27
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::future::{Future, FutureObj};
[INFO] [stderr]   |                           ^^^^^^^^^
[INFO] [stderr]   |                           |
[INFO] [stderr]   |                           no `FutureObj` in `future`
[INFO] [stderr]   |                           help: a similar name exists in the module: `Future`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::mem::PinMut`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::mem::PinMut;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^ no `PinMut` in `mem`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved imports `std::task::Executor`, `std::task::local_waker_from_nonlocal`, `std::task::SpawnErrorKind`, `std::task::SpawnObjError`, `std::task::Wake`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Executor as ExecutorTrait,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^ no `Executor` in `task`
[INFO] [stderr] 12 |     local_waker_from_nonlocal,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^ no `local_waker_from_nonlocal` in `task`
[INFO] [stderr] 13 |     Poll,
[INFO] [stderr] 14 |     SpawnErrorKind,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ no `SpawnErrorKind` in `task`
[INFO] [stderr] 15 |     SpawnObjError,
[INFO] [stderr]    |     ^^^^^^^^^^^^^ no `SpawnObjError` in `task`
[INFO] [stderr] 16 |     Wake,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     no `Wake` in `task`
[INFO] [stderr]    |     help: a similar name exists in the module: `Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `PinMut` in module `std::mem`
[INFO] [stderr]   --> src/main.rs:94:33
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn poll(mut self: std::mem::PinMut<Self>, ctx: &mut std::task::Context) -> std::task::Poll<()> {
[INFO] [stderr]    |                                 ^^^^^^ not found in `std::mem`
[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(rust_2018_preview, async_await, await_macro, futures_api, pin, arbitrary_self_types)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0412, E0432, E0554, E0557, E0705.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[INFO] [stderr] error: Could not compile `async-await`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "be0755089fcf2d73323c39409d0bc50dd0ca43e23aaf82570bbbc2d985ea9409"`
[INFO] running `"docker" "rm" "-f" "be0755089fcf2d73323c39409d0bc50dd0ca43e23aaf82570bbbc2d985ea9409"`
[INFO] [stdout] be0755089fcf2d73323c39409d0bc50dd0ca43e23aaf82570bbbc2d985ea9409