[INFO] updating cached repository ebkalderon/sink-futures-example
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ebkalderon/sink-futures-example
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ebkalderon/sink-futures-example" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/ebkalderon/sink-futures-example"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/ebkalderon/sink-futures-example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ebkalderon/sink-futures-example" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/ebkalderon/sink-futures-example"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/ebkalderon/sink-futures-example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] aa79c026aabcd060d404b9baac8e06f31092c5d6
[INFO] sha for GitHub repo ebkalderon/sink-futures-example: aa79c026aabcd060d404b9baac8e06f31092c5d6
[INFO] validating manifest of ebkalderon/sink-futures-example on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ebkalderon/sink-futures-example on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ebkalderon/sink-futures-example
[INFO] finished frobbing ebkalderon/sink-futures-example
[INFO] frobbed toml for ebkalderon/sink-futures-example written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/ebkalderon/sink-futures-example/Cargo.toml
[INFO] started frobbing ebkalderon/sink-futures-example
[INFO] finished frobbing ebkalderon/sink-futures-example
[INFO] frobbed toml for ebkalderon/sink-futures-example written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/ebkalderon/sink-futures-example/Cargo.toml
[INFO] crate ebkalderon/sink-futures-example already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/ebkalderon/sink-futures-example/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-preview v0.3.0-alpha.18
[INFO] [stderr]   Downloaded futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]   Downloaded futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]   Downloaded futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]   Downloaded futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]   Downloaded futures-executor-preview v0.3.0-alpha.18
[INFO] [stderr]   Downloaded futures-io-preview v0.3.0-alpha.18
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking ebkalderon/sink-futures-example against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-6/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/ebkalderon/sink-futures-example:/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=forbid" "-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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6b60d7ac36ba74cf38aa06e85dd08a77e2b0a5254bbaa11abe6cb7e67855e425
[INFO] running `"docker" "start" "-a" "6b60d7ac36ba74cf38aa06e85dd08a77e2b0a5254bbaa11abe6cb7e67855e425"`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking sink-futures-example v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]   --> src/bin/new.rs:54:22
[INFO] [stderr]    |
[INFO] [stderr] 54 |         for entry in await!(rx.next()) {
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `rx.next().await`
[INFO] [stderr] 
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/bin/new.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(async_await, await_macro, futures_api)]
[INFO] [stderr]   |                         ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: subsumed by `.await` syntax
[INFO] [stderr]  --> src/bin/new.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(async_await, await_macro, futures_api)]
[INFO] [stderr]   |                         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]   --> src/bin/new.rs:54:22
[INFO] [stderr]    |
[INFO] [stderr] 54 |         for entry in await!(rx.next()) {
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `rx.next().await`
[INFO] [stderr] 
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/bin/new.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(async_await, await_macro, futures_api)]
[INFO] [stderr]   |                         ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: subsumed by `.await` syntax
[INFO] [stderr]  --> src/bin/new.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(async_await, await_macro, futures_api)]
[INFO] [stderr]   |                         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::task::LocalWaker`
[INFO] [stderr]  --> src/bin/new.rs:5:17
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::task::{LocalWaker, Poll};
[INFO] [stderr]   |                 ^^^^^^^^^^ no `LocalWaker` in `task`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `sink-futures-example`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0432]: unresolved import `std::task::LocalWaker`
[INFO] [stderr]  --> src/bin/new.rs:5:17
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::task::{LocalWaker, Poll};
[INFO] [stderr]   |                 ^^^^^^^^^^ no `LocalWaker` in `task`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `sink-futures-example`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "6b60d7ac36ba74cf38aa06e85dd08a77e2b0a5254bbaa11abe6cb7e67855e425"`
[INFO] running `"docker" "rm" "-f" "6b60d7ac36ba74cf38aa06e85dd08a77e2b0a5254bbaa11abe6cb7e67855e425"`
[INFO] [stdout] 6b60d7ac36ba74cf38aa06e85dd08a77e2b0a5254bbaa11abe6cb7e67855e425