[INFO] crate web-push 0.6.0-alpha.2 is already in cache
[INFO] testing web-push-0.6.0-alpha.2 against 1.38.0 for beta-1.39-1
[INFO] extracting crate web-push 0.6.0-alpha.2 into work/builds/worker-4/source
[INFO] validating manifest of crates.io crate web-push 0.6.0-alpha.2 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 crates.io crate web-push 0.6.0-alpha.2
[INFO] finished tweaking crates.io crate web-push 0.6.0-alpha.2
[INFO] tweaked toml for crates.io crate web-push 0.6.0-alpha.2 written to work/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate web-push 0.6.0-alpha.2 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] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/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] a5643aa0f35fad94e418364390ff6bce8c8187ea637dab590c7850af2f02f695
[INFO] running `"docker" "start" "-a" "a5643aa0f35fad94e418364390ff6bce8c8187ea637dab590c7850af2f02f695"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.3
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling cc v1.0.42
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling pkg-config v0.3.15
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling indexmap v1.1.0
[INFO] [stderr]    Compiling tower-service v0.3.0-alpha.1
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling pin-project-internal v0.4.0-alpha.7
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling base64 v0.7.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling tracing-core v0.1.5
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling tokio-io v0.2.0-alpha.4
[INFO] [stderr]    Compiling http v0.1.18
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]    Compiling tokio-codec v0.2.0-alpha.4
[INFO] [stderr]    Compiling tower-make v0.1.0-alpha.2
[INFO] [stderr]    Compiling chrono v0.4.9
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling http-body v0.2.0-alpha.1
[INFO] [stderr]    Compiling tokio-sync v0.2.0-alpha.4
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.18
[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" "a5643aa0f35fad94e418364390ff6bce8c8187ea637dab590c7850af2f02f695"`
[INFO] running `"docker" "rm" "-f" "a5643aa0f35fad94e418364390ff6bce8c8187ea637dab590c7850af2f02f695"`
[INFO] [stdout] a5643aa0f35fad94e418364390ff6bce8c8187ea637dab590c7850af2f02f695