[INFO] updating cached repository https://github.com/pimeys/blocking_test
[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] 727b68fdf150b6b81f224cc44d640c5526b6d2b4
[INFO] testing pimeys/blocking_test against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpimeys%2Fblocking_test" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pimeys/blocking_test on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/pimeys/blocking_test
[INFO] finished tweaking git repo https://github.com/pimeys/blocking_test
[INFO] tweaked toml for git repo https://github.com/pimeys/blocking_test written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/pimeys/blocking_test already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 9d1c5047cc880dd839773515f83a93b6edbb340e5f7489c53d2364784db10f6f
[INFO] running `"docker" "start" "-a" "9d1c5047cc880dd839773515f83a93b6edbb340e5f7489c53d2364784db10f6f"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.2
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling async-ready v3.0.0
[INFO] [stderr]    Compiling route-recognizer v0.1.13
[INFO] [stderr]    Compiling async-datagram v3.0.0
[INFO] [stderr]    Compiling hyper v0.12.33
[INFO] [stderr]    Compiling getrandom v0.1.11
[INFO] [stderr]    Compiling tokio-executor v0.1.8
[INFO] [stderr]    Compiling async-task v1.0.0
[INFO] [stderr]    Compiling darling_core v0.8.6
[INFO] [stderr]    Compiling regex v1.3.0
[INFO] [stderr]    Compiling chrono v0.4.8
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling postgres-protocol v0.4.1
[INFO] [stderr]    Compiling crossbeam v0.7.2
[INFO] [stderr]    Compiling tokio-timer v0.2.11
[INFO] [stderr]    Compiling tokio-current-thread v0.1.6
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling tokio-threadpool v0.1.15
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling tokio-io v0.2.0-alpha.4
[INFO] [stderr]    Compiling r2d2 v0.8.5
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling bb8 v0.3.1
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling h2 v0.1.26
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling tokio-codec v0.2.0-alpha.4
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]    Compiling pretty_env_logger v0.3.1
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-udp v0.1.5
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling multipart v0.16.1
[INFO] [stderr]    Compiling darling_macro v0.8.6
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling tokio-sync v0.2.0-alpha.4
[INFO] [stderr] error[E0658]: async fn is unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-sync-0.2.0-alpha.4/src/lock.rs:112:5
[INFO] [stderr]     |
[INFO] [stderr] 112 | /     pub async fn lock(&mut self) -> LockGuard<T> {
[INFO] [stderr] 113 | |         poll_fn(|cx| self.poll_lock(cx)).await
[INFO] [stderr] 114 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50547
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: async/await is unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-sync-0.2.0-alpha.4/src/lock.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |         poll_fn(|cx| self.poll_lock(cx)).await
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50547
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: async fn is unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-sync-0.2.0-alpha.4/src/mpsc/bounded.rs:164:5
[INFO] [stderr]     |
[INFO] [stderr] 164 | /     pub async fn recv(&mut self) -> Option<T> {
[INFO] [stderr] 165 | |         use futures_util::future::poll_fn;
[INFO] [stderr] 166 | |
[INFO] [stderr] 167 | |         poll_fn(|cx| self.poll_recv(cx)).await
[INFO] [stderr] 168 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50547
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: async/await is unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-sync-0.2.0-alpha.4/src/mpsc/bounded.rs:167:9
[INFO] [stderr]     |
[INFO] [stderr] 167 |         poll_fn(|cx| self.poll_recv(cx)).await
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50547
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: async fn is unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-sync-0.2.0-alpha.4/src/mpsc/bounded.rs:238:5
[INFO] [stderr]     |
[INFO] [stderr] 238 | /     pub async fn send(&mut self, value: T) -> Result<(), SendError> {
[INFO] [stderr] 239 | |         use futures_util::future::poll_fn;
[INFO] [stderr] 240 | |
[INFO] [stderr] 241 | |         poll_fn(|cx| self.poll_ready(cx)).await?;
[INFO] [stderr] 242 | |
[INFO] [stderr] 243 | |         self.try_send(value).map_err(|_| SendError(()))
[INFO] [stderr] 244 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50547
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: async/await is unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-sync-0.2.0-alpha.4/src/mpsc/bounded.rs:241:9
[INFO] [stderr]     |
[INFO] [stderr] 241 |         poll_fn(|cx| self.poll_ready(cx)).await?;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50547
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: async fn is unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-sync-0.2.0-alpha.4/src/mpsc/unbounded.rs:134:5
[INFO] [stderr]     |
[INFO] [stderr] 134 | /     pub async fn recv(&mut self) -> Option<T> {
[INFO] [stderr] 135 | |         use futures_util::future::poll_fn;
[INFO] [stderr] 136 | |
[INFO] [stderr] 137 | |         poll_fn(|cx| self.poll_recv(cx)).await
[INFO] [stderr] 138 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50547
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: async/await is unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-sync-0.2.0-alpha.4/src/mpsc/unbounded.rs:137:9
[INFO] [stderr]     |
[INFO] [stderr] 137 |         poll_fn(|cx| self.poll_recv(cx)).await
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50547
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: async fn is unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-sync-0.2.0-alpha.4/src/oneshot.rs:223:5
[INFO] [stderr]     |
[INFO] [stderr] 223 | /     pub async fn closed(&mut self) {
[INFO] [stderr] 224 | |         use futures_util::future::poll_fn;
[INFO] [stderr] 225 | |
[INFO] [stderr] 226 | |         poll_fn(|cx| self.poll_closed(cx)).await
[INFO] [stderr] 227 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50547
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: async/await is unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-sync-0.2.0-alpha.4/src/oneshot.rs:226:9
[INFO] [stderr]     |
[INFO] [stderr] 226 |         poll_fn(|cx| self.poll_closed(cx)).await
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50547
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: async fn is unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-sync-0.2.0-alpha.4/src/watch.rs:248:5
[INFO] [stderr]     |
[INFO] [stderr] 248 | /     pub async fn recv_ref(&mut self) -> Option<Ref<'_, T>> {
[INFO] [stderr] 249 | |         let shared = &self.shared;
[INFO] [stderr] 250 | |         let inner = &self.inner;
[INFO] [stderr] 251 | |         let version = self.ver;
[INFO] [stderr] ...   |
[INFO] [stderr] 259 | |         }
[INFO] [stderr] 260 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50547
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: async/await is unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-sync-0.2.0-alpha.4/src/watch.rs:253:15
[INFO] [stderr]     |
[INFO] [stderr] 253 |         match poll_fn(|cx| poll_lock(cx, shared, inner, version)).await {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50547
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: async fn is unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-sync-0.2.0-alpha.4/src/watch.rs:295:5
[INFO] [stderr]     |
[INFO] [stderr] 295 | /     pub async fn recv(&mut self) -> Option<T> {
[INFO] [stderr] 296 | |         self.recv_ref().await.map(|v_ref| v_ref.clone())
[INFO] [stderr] 297 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50547
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: async/await is unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-sync-0.2.0-alpha.4/src/watch.rs:296:9
[INFO] [stderr]     |
[INFO] [stderr] 296 |         self.recv_ref().await.map(|v_ref| v_ref.clone())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50547
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: async fn is unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-sync-0.2.0-alpha.4/src/watch.rs:386:5
[INFO] [stderr]     |
[INFO] [stderr] 386 | /     pub async fn closed(&mut self) {
[INFO] [stderr] 387 | |         poll_fn(|cx| self.poll_close(cx)).await
[INFO] [stderr] 388 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50547
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: async/await is unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-sync-0.2.0-alpha.4/src/watch.rs:387:9
[INFO] [stderr]     |
[INFO] [stderr] 387 |         poll_fn(|cx| self.poll_close(cx)).await
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50547
[INFO] [stderr] 
[INFO] [stderr]    Compiling futures-preview v0.3.0-alpha.18
[INFO] [stderr] error: aborting due to 16 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] error: Could not compile `tokio-sync`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "9d1c5047cc880dd839773515f83a93b6edbb340e5f7489c53d2364784db10f6f"`
[INFO] running `"docker" "rm" "-f" "9d1c5047cc880dd839773515f83a93b6edbb340e5f7489c53d2364784db10f6f"`
[INFO] [stdout] 9d1c5047cc880dd839773515f83a93b6edbb340e5f7489c53d2364784db10f6f