[INFO] fetching crate futures-preview 0.3.0-alpha.19...
[INFO] checking futures-preview-0.3.0-alpha.19 against beta for pr-78714
[INFO] extracting crate futures-preview 0.3.0-alpha.19 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate futures-preview 0.3.0-alpha.19 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-preview 0.3.0-alpha.19
[INFO] finished tweaking crates.io crate futures-preview 0.3.0-alpha.19
[INFO] tweaked toml for crates.io crate futures-preview 0.3.0-alpha.19 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49899aa855e3a8e23ee666fbcaa09728f0d3a3ae7c6a66bf0b2c7e5af1a2db1f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "49899aa855e3a8e23ee666fbcaa09728f0d3a3ae7c6a66bf0b2c7e5af1a2db1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49899aa855e3a8e23ee666fbcaa09728f0d3a3ae7c6a66bf0b2c7e5af1a2db1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49899aa855e3a8e23ee666fbcaa09728f0d3a3ae7c6a66bf0b2c7e5af1a2db1f", kill_on_drop: false }`
[INFO] [stdout] 49899aa855e3a8e23ee666fbcaa09728f0d3a3ae7c6a66bf0b2c7e5af1a2db1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 189556884ab7de6822caf79698aeb6a5d331f1eac78603dd1d8aa89dccc768c5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "189556884ab7de6822caf79698aeb6a5d331f1eac78603dd1d8aa89dccc768c5", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `futures::pending`, `futures::poll`, `futures::join`, `futures::try_join`, `futures::select`
[INFO] [stdout]  --> tests/async_await_macros.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::{Poll, pending, pin_mut, poll, join, try_join, select};
[INFO] [stdout]   |                     ^^^^^^^           ^^^^  ^^^^  ^^^^^^^^  ^^^^^^ no `select` in the root
[INFO] [stdout]   |                     |                 |     |     |
[INFO] [stdout]   |                     |                 |     |     no `try_join` in the root
[INFO] [stdout]   |                     |                 |     no `join` in the root
[INFO] [stdout]   |                     |                 no `poll` in the root
[INFO] [stdout]   |                     |                 help: a similar name exists in the module: `Poll`
[INFO] [stdout]   |                     no `pending` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `pending`
[INFO] [stdout]   --> tests/async_await_macros.rs:12:32
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let pending_once = async { pending!() };
[INFO] [stdout]    |                                ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `poll`
[INFO] [stdout]   --> tests/async_await_macros.rs:15:35
[INFO] [stdout]    |
[INFO] [stdout] 15 |         assert_eq!(Poll::Pending, poll!(&mut pending_once));
[INFO] [stdout]    |                                   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `poll`
[INFO] [stdout]   --> tests/async_await_macros.rs:16:37
[INFO] [stdout]    |
[INFO] [stdout] 16 |         assert_eq!(Poll::Ready(()), poll!(&mut pending_once));
[INFO] [stdout]    |                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `join`
[INFO] [stdout]   --> tests/async_await_macros.rs:26:19
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let res = join!(rx1, rx2);
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `poll`
[INFO] [stdout]   --> tests/async_await_macros.rs:32:35
[INFO] [stdout]    |
[INFO] [stdout] 32 |         assert_eq!(Poll::Pending, poll!(&mut fut));
[INFO] [stdout]    |                                   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `poll`
[INFO] [stdout]   --> tests/async_await_macros.rs:34:35
[INFO] [stdout]    |
[INFO] [stdout] 34 |         assert_eq!(Poll::Pending, poll!(&mut fut));
[INFO] [stdout]    |                                   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `poll`
[INFO] [stdout]   --> tests/async_await_macros.rs:36:37
[INFO] [stdout]    |
[INFO] [stdout] 36 |         assert_eq!(Poll::Ready(()), poll!(&mut fut));
[INFO] [stdout]    |                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `select`
[INFO] [stdout]   --> tests/async_await_macros.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         select! {
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `select`
[INFO] [stdout]   --> tests/async_await_macros.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |         select! {
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `select`
[INFO] [stdout]   --> tests/async_await_macros.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |             select! {
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `select`
[INFO] [stdout]    --> tests/async_await_macros.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |         select! {
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `select`
[INFO] [stdout]    --> tests/async_await_macros.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |         select! {
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `select`
[INFO] [stdout]    --> tests/async_await_macros.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         select! {
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `select`
[INFO] [stdout]    --> tests/async_await_macros.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |         select! {
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `join`
[INFO] [stdout]    --> tests/async_await_macros.rs:168:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |         join!(ready)
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `join`
[INFO] [stdout]    --> tests/async_await_macros.rs:175:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |         join!(ready1, ready2)
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `try_join`
[INFO] [stdout]    --> tests/async_await_macros.rs:184:9
[INFO] [stdout]     |
[INFO] [stdout] 184 |         try_join!(ready)
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `try_join`
[INFO] [stdout]    --> tests/async_await_macros.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 |         try_join!(ready1, ready2)
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `join`
[INFO] [stdout]    --> tests/async_await_macros.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |         join!(async {}, async {})
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `try_join`
[INFO] [stdout]    --> tests/async_await_macros.rs:206:9
[INFO] [stdout]     |
[INFO] [stdout] 206 |         try_join!(
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_test`
[INFO] [stdout]  --> tests/futures_unordered.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures_test::future::FutureTestExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of undeclared crate or module `futures_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_test`
[INFO] [stdout]  --> tests/futures_unordered.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures_test::task::noop_context;
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of undeclared crate or module `futures_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `futures_test`
[INFO] [stdout]  --> tests/futures_unordered.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use futures_test::{assert_stream_done, assert_stream_next};
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of undeclared crate or module `futures_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_stream_next`
[INFO] [stdout]    --> tests/futures_unordered.rs:173:5
[INFO] [stdout]     |
[INFO] [stdout] 173 |     assert_stream_next!(stream, ());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_stream_next`
[INFO] [stdout]    --> tests/futures_unordered.rs:174:5
[INFO] [stdout]     |
[INFO] [stdout] 174 |     assert_stream_next!(stream, ());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_stream_next`
[INFO] [stdout]    --> tests/futures_unordered.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 175 |     assert_stream_next!(stream, ());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_stream_done`
[INFO] [stdout]    --> tests/futures_unordered.rs:176:5
[INFO] [stdout]     |
[INFO] [stdout] 176 |     assert_stream_done!(stream);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `poll` in this scope
[INFO] [stdout]   --> tests/macro_comma_support.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let _ = poll!(async {}.boxed(),);
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `join` in this scope
[INFO] [stdout]   --> tests/macro_comma_support.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         join!(future1, future2,);
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `try_join` in this scope
[INFO] [stdout]   --> tests/macro_comma_support.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         try_join!(future1, future2,)
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `noop_context` in this scope
[INFO] [stdout]   --> tests/futures_unordered.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut cx = noop_context();
[INFO] [stdout]    |                  ^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `noop_context` in this scope
[INFO] [stdout]   --> tests/futures_unordered.rs:75:18
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let mut cx = noop_context();
[INFO] [stdout]    |                  ^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `noop_context` in this scope
[INFO] [stdout]    --> tests/futures_unordered.rs:108:19
[INFO] [stdout]     |
[INFO] [stdout] 108 |     let cx = &mut noop_context();
[INFO] [stdout]     |                   ^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `pin_utils`
[INFO] [stdout]  --> tests/split.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use pin_utils::unsafe_pinned;
[INFO] [stdout]   |     ^^^^^^^^^ use of undeclared crate or module `pin_utils`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `unsafe_pinned`
[INFO] [stdout]   --> tests/split.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     unsafe_pinned!(stream: T);
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `unsafe_pinned`
[INFO] [stdout]   --> tests/split.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     unsafe_pinned!(sink: U);
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-preview`
[INFO] [stdout] warning: unused import: `futures::sink::SinkExt`
[INFO] [stdout]  --> tests/async_await_macros.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use futures::sink::SinkExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_test`
[INFO] [stdout]  --> tests/mutex.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures_test::future::FutureTestExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of undeclared crate or module `futures_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_test`
[INFO] [stdout]  --> tests/mutex.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures_test::task::{panic_context, new_count_waker};
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of undeclared crate or module `futures_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_test`
[INFO] [stdout]  --> tests/eager_drop.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures_test::future::FutureTestExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of undeclared crate or module `futures_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 21 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `pin_utils`
[INFO] [stdout]  --> tests/eager_drop.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use pin_utils::unsafe_pinned;
[INFO] [stdout]   |     ^^^^^^^^^ use of undeclared crate or module `pin_utils`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `unsafe_pinned`
[INFO] [stdout]   --> tests/eager_drop.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     unsafe_pinned!(future: F);
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `assert_matches`
[INFO] [stdout]  --> tests/io_cursor.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use assert_matches::assert_matches;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^ use of undeclared crate or module `assert_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_matches`
[INFO] [stdout]   --> tests/io_cursor.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         assert_matches!(Pin::new(&mut cursor).poll_write(cx, &[1, 2]), Poll::Ready(Ok(2)));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_matches`
[INFO] [stdout]   --> tests/io_cursor.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         assert_matches!(Pin::new(&mut cursor).poll_write(cx, &[3, 4]), Poll::Ready(Ok(2)));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_matches`
[INFO] [stdout]   --> tests/io_cursor.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |         assert_matches!(Pin::new(&mut cursor).poll_write(cx, &[5, 6]), Poll::Ready(Ok(1)));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_matches`
[INFO] [stdout]   --> tests/io_cursor.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         assert_matches!(Pin::new(&mut cursor).poll_write(cx, &[6, 7]), Poll::Ready(Ok(0)));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::Poll`
[INFO] [stdout]  --> tests/io_cursor.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures::Poll;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::io::AsyncWrite`
[INFO] [stdout]  --> tests/io_cursor.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::io::AsyncWrite;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::pin::Pin`
[INFO] [stdout]  --> tests/io_cursor.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::pin::Pin;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_test`
[INFO] [stdout]  --> tests/io_read_to_string.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures_test::io::AsyncReadTestExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of undeclared crate or module `futures_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_test`
[INFO] [stdout]  --> tests/io_read_to_string.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures_test::task::noop_context;
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of undeclared crate or module `futures_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `noop_context` in this scope
[INFO] [stdout]   --> tests/io_read_to_string.rs:28:18
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut cx = noop_context();
[INFO] [stdout]    |                  ^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `panic_context` in this scope
[INFO] [stdout]   --> tests/mutex.rs:14:46
[INFO] [stdout]    |
[INFO] [stdout] 14 |         assert!(mutex.lock().poll_unpin(&mut panic_context()).is_ready());
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `new_count_waker` in this scope
[INFO] [stdout]   --> tests/mutex.rs:21:28
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let (waker, counter) = new_count_waker();
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `panic_context` in this scope
[INFO] [stdout]   --> tests/mutex.rs:22:45
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let lock = mutex.lock().poll_unpin(&mut panic_context());
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `panic_context` in this scope
[INFO] [stdout]   --> tests/mutex.rs:33:36
[INFO] [stdout]    |
[INFO] [stdout] 33 |     assert!(waiter.poll_unpin(&mut panic_context()).is_ready());
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `pending_once` found for struct `futures::future::Ready<()>` in the current scope
[INFO] [stdout]    --> tests/futures_unordered.rs:171:33
[INFO] [stdout]     |
[INFO] [stdout] 171 |     let fut = future::ready(()).pending_once().assert_unmoved();
[INFO] [stdout]     |                                 ^^^^^^^^^^^^ method not found in `futures::future::Ready<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_test`
[INFO] [stdout]  --> tests/basic_combinators.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures_test::future::FutureTestExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of undeclared crate or module `futures_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 11 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432, E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `run_in_background` found for struct `futures::future::Map<futures::future::Map<futures::future::Then<futures::future::Ready<{integer}>, futures::future::Ready<{integer}>, [closure@tests/basic_combinators.rs:12:15: 16:10]>, [closure@tests/basic_combinators.rs:16:16: 20:10]>, [closure@tests/basic_combinators.rs:20:16: 22:10]>` in the current scope
[INFO] [stdout]   --> tests/basic_combinators.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fut.run_in_background(); // Start it
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^ method not found in `futures::future::Map<futures::future::Map<futures::future::Then<futures::future::Ready<{integer}>, futures::future::Ready<{integer}>, [closure@tests/basic_combinators.rs:12:15: 16:10]>, [closure@tests/basic_combinators.rs:16:16: 20:10]>, [closure@tests/basic_combinators.rs:20:16: 22:10]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `stream` found for struct `Pin<&mut Join<T, U>>` in the current scope
[INFO] [stdout]   --> tests/split.rs:25:14
[INFO] [stdout]    |
[INFO] [stdout] 25 |         self.stream().poll_next(cx)
[INFO] [stdout]    |              ^^^^^^-- help: remove the arguments
[INFO] [stdout]    |              |
[INFO] [stdout]    |              field, not a method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `run_in_background` found for struct `futures::future::Map<futures::future::MapErr<futures::future::MapOk<futures::future::OrElse<futures::future::AndThen<futures::future::Map<futures::future::MapErr<futures::future::MapOk<futures::future::OrElse<futures::future::AndThen<futures::future::Ready<std::result::Result<i32, i32>>, futures::future::Ready<std::result::Result<i32, i32>>, [closure@tests/basic_combinators.rs:44:19: 48:10]>, futures::future::Ready<std::result::Result<i32, i32>>, [closure@tests/basic_combinators.rs:49:18: 53:10]>, [closure@tests/basic_combinators.rs:54:17: 58:10]>, [closure@tests/basic_combinators.rs:59:18: 63:10]>, [closure@tests/basic_combinators.rs:64:14: 68:10]>, futures::future::Ready<std::result::Result<i32, i32>>, [closure@tests/basic_combinators.rs:69:19: 73:10]>, futures::future::Ready<std::result::Result<i32, i32>>, [closure@tests/basic_combinators.rs:74:18: 78:10]>, [closure@tests/basic_combinators.rs:79:17: 83:10]>, [closure@tests/basic_combinators.rs:84:18: 88:10]>, [closure@tests/basic_combinators.rs:89:14: 92:10]>` in the current scope
[INFO] [stdout]   --> tests/basic_combinators.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fut.run_in_background(); // Start it
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^ method not found in `futures::future::Map<futures::future::MapErr<futures::future::MapOk<futures::future::OrElse<futures::future::AndThen<futures::future::Map<futures::future::MapErr<futures::future::MapOk<futures::future::OrElse<futures::future::AndThen<futures::future::Ready<std::result::Result<i32, i32>>, futures::future::Ready<std::result::Result<i32, i32>>, [closure@tests/basic_combinators.rs:44:19: 48:10]>, futures::future::Ready<std::result::Result<i32, i32>>, [closure@tests/basic_combinators.rs:49:18: 53:10]>, [closure@tests/basic_combinators.rs:54:17: 58:10]>, [closure@tests/basic_combinators.rs:59:18: 63:10]>, [closure@tests/basic_combinators.rs:64:14: 68:10]>, futures::future::Ready<std::result::Result<i32, i32>>, [closure@tests/basic_combinators.rs:69:19: 73:10]>, futures::future::Ready<std::result::Result<i32, i32>>, [closure@tests/basic_combinators.rs:74:18: 78:10]>, [closure@tests/basic_combinators.rs:79:17: 83:10]>, [closure@tests/basic_combinators.rs:84:18: 88:10]>, [closure@tests/basic_combinators.rs:89:14: 92:10]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `sink` found for struct `Pin<&mut Join<T, U>>` in the current scope
[INFO] [stdout]   --> tests/split.rs:36:14
[INFO] [stdout]    |
[INFO] [stdout] 36 |         self.sink().poll_ready(cx)
[INFO] [stdout]    |              ^^^^-- help: remove the arguments
[INFO] [stdout]    |              |
[INFO] [stdout]    |              field, not a method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `sink` found for struct `Pin<&mut Join<T, U>>` in the current scope
[INFO] [stdout]   --> tests/split.rs:43:14
[INFO] [stdout]    |
[INFO] [stdout] 43 |         self.sink().start_send(item)
[INFO] [stdout]    |              ^^^^-- help: remove the arguments
[INFO] [stdout]    |              |
[INFO] [stdout]    |              field, not a method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `sink` found for struct `Pin<&mut Join<T, U>>` in the current scope
[INFO] [stdout]   --> tests/split.rs:50:14
[INFO] [stdout]    |
[INFO] [stdout] 50 |         self.sink().poll_flush(cx)
[INFO] [stdout]    |              ^^^^-- help: remove the arguments
[INFO] [stdout]    |              |
[INFO] [stdout]    |              field, not a method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `sink` found for struct `Pin<&mut Join<T, U>>` in the current scope
[INFO] [stdout]   --> tests/split.rs:57:14
[INFO] [stdout]    |
[INFO] [stdout] 57 |         self.sink().poll_close(cx)
[INFO] [stdout]    |              ^^^^-- help: remove the arguments
[INFO] [stdout]    |              |
[INFO] [stdout]    |              field, not a method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `run_in_background` found for struct `futures::future::Map<futures::future::MapOk<futures::future::Ready<std::result::Result<i32, i32>>, [closure@tests/eager_drop.rs:17:17: 17:71]>, [closure@tests/eager_drop.rs:18:14: 21:10]>` in the current scope
[INFO] [stdout]   --> tests/eager_drop.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 |         .run_in_background();
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^ method not found in `futures::future::Map<futures::future::MapOk<futures::future::Ready<std::result::Result<i32, i32>>, [closure@tests/eager_drop.rs:17:17: 17:71]>, [closure@tests/eager_drop.rs:18:14: 21:10]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `interleave_pending` found for struct `IntoAsyncRead<futures::stream::Map<futures::stream::Iter<std::vec::IntoIter<&[u8]>>, fn(&[u8]) -> std::result::Result<&[u8], std::io::Error> {std::result::Result::<&[u8], std::io::Error>::Ok}>>` in the current scope
[INFO] [stdout]   --> tests/io_read_to_string.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |         .interleave_pending();
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^ method not found in `IntoAsyncRead<futures::stream::Map<futures::stream::Iter<std::vec::IntoIter<&[u8]>>, fn(&[u8]) -> std::result::Result<&[u8], std::io::Error> {std::result::Result::<&[u8], std::io::Error>::Ok}>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `run_in_background` found for struct `futures::future::Map<futures::future::MapErr<futures::future::Ready<std::result::Result<i32, i32>>, [closure@tests/eager_drop.rs:35:18: 35:72]>, [closure@tests/eager_drop.rs:36:14: 39:10]>` in the current scope
[INFO] [stdout]   --> tests/eager_drop.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 |         .run_in_background();
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^ method not found in `futures::future::Map<futures::future::MapErr<futures::future::Ready<std::result::Result<i32, i32>>, [closure@tests/eager_drop.rs:35:18: 35:72]>, [closure@tests/eager_drop.rs:36:14: 39:10]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `future` found for struct `Pin<&mut FutureData<F, T>>` in the current scope
[INFO] [stdout]   --> tests/eager_drop.rs:58:14
[INFO] [stdout]    |
[INFO] [stdout] 58 |         self.future().poll(cx)
[INFO] [stdout]    |              ^^^^^^-- help: remove the arguments
[INFO] [stdout]    |              |
[INFO] [stdout]    |              field, not a method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `pending_once` found for struct `futures::future::Ready<()>` in the current scope
[INFO] [stdout]   --> tests/mutex.rs:53:23
[INFO] [stdout]    |
[INFO] [stdout] 53 |             ready(()).pending_once().await;
[INFO] [stdout]    |                       ^^^^^^^^^^^^ method not found in `futures::future::Ready<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `run_in_background` found for struct `futures::future::Then<FutureData<UnwrapOrElse<futures::channel::oneshot::Receiver<()>, [closure@tests/eager_drop.rs:68:57: 68:73]>, std::sync::mpsc::Sender<()>>, futures::future::Ready<()>, [closure@tests/eager_drop.rs:69:15: 73:10]>` in the current scope
[INFO] [stdout]   --> tests/eager_drop.rs:74:10
[INFO] [stdout]    |
[INFO] [stdout] 74 |         .run_in_background();
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^ method not found in `futures::future::Then<FutureData<UnwrapOrElse<futures::channel::oneshot::Receiver<()>, [closure@tests/eager_drop.rs:68:57: 68:73]>, std::sync::mpsc::Sender<()>>, futures::future::Ready<()>, [closure@tests/eager_drop.rs:69:15: 73:10]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `run_in_background` found for struct `futures::future::AndThen<FutureData<UnwrapOrElse<futures::channel::oneshot::Receiver<std::result::Result<(), ()>>, [closure@tests/eager_drop.rs:87:57: 87:73]>, std::sync::mpsc::Sender<()>>, futures::future::Ready<std::result::Result<(), ()>>, [closure@tests/eager_drop.rs:88:19: 92:10]>` in the current scope
[INFO] [stdout]   --> tests/eager_drop.rs:93:10
[INFO] [stdout]    |
[INFO] [stdout] 93 |         .run_in_background();
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^ method not found in `futures::future::AndThen<FutureData<UnwrapOrElse<futures::channel::oneshot::Receiver<std::result::Result<(), ()>>, [closure@tests/eager_drop.rs:87:57: 87:73]>, std::sync::mpsc::Sender<()>>, futures::future::Ready<std::result::Result<(), ()>>, [closure@tests/eager_drop.rs:88:19: 92:10]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `run_in_background` found for struct `futures::future::OrElse<FutureData<UnwrapOrElse<futures::channel::oneshot::Receiver<std::result::Result<(), ()>>, [closure@tests/eager_drop.rs:106:57: 106:73]>, std::sync::mpsc::Sender<()>>, futures::future::Ready<std::result::Result<(), ()>>, [closure@tests/eager_drop.rs:107:18: 111:10]>` in the current scope
[INFO] [stdout]    --> tests/eager_drop.rs:112:10
[INFO] [stdout]     |
[INFO] [stdout] 112 |         .run_in_background();
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^ method not found in `futures::future::OrElse<FutureData<UnwrapOrElse<futures::channel::oneshot::Receiver<std::result::Result<(), ()>>, [closure@tests/eager_drop.rs:106:57: 106:73]>, std::sync::mpsc::Sender<()>>, futures::future::Ready<std::result::Result<(), ()>>, [closure@tests/eager_drop.rs:107:18: 111:10]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0698]: type inside `async` block must be known in this context
[INFO] [stdout]   --> tests/mutex.rs:52:28
[INFO] [stdout]    |
[INFO] [stdout] 52 |             let mut lock = mutex.lock().await;
[INFO] [stdout]    |                            ^^^^^ cannot infer type for type `{integer}`
[INFO] [stdout]    |
[INFO] [stdout] note: the type is part of the `async` block because of this `await`
[INFO] [stdout]   --> tests/mutex.rs:52:28
[INFO] [stdout]    |
[INFO] [stdout] 52 |             let mut lock = mutex.lock().await;
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0698]: type inside `async` block must be known in this context
[INFO] [stdout]   --> tests/mutex.rs:52:28
[INFO] [stdout]    |
[INFO] [stdout] 52 |             let mut lock = mutex.lock().await;
[INFO] [stdout]    |                            ^^^^^^^^^^^^ cannot infer type for type `{integer}`
[INFO] [stdout]    |
[INFO] [stdout] note: the type is part of the `async` block because of this `await`
[INFO] [stdout]   --> tests/mutex.rs:52:28
[INFO] [stdout]    |
[INFO] [stdout] 52 |             let mut lock = mutex.lock().await;
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0698]: type inside `async` block must be known in this context
[INFO] [stdout]   --> tests/mutex.rs:52:28
[INFO] [stdout]    |
[INFO] [stdout] 52 |             let mut lock = mutex.lock().await;
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^ cannot infer type for type `{integer}`
[INFO] [stdout]    |
[INFO] [stdout] note: the type is part of the `async` block because of this `await`
[INFO] [stdout]   --> tests/mutex.rs:52:28
[INFO] [stdout]    |
[INFO] [stdout] 52 |             let mut lock = mutex.lock().await;
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0698]: type inside `async` block must be known in this context
[INFO] [stdout]   --> tests/mutex.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |             let mut lock = mutex.lock().await;
[INFO] [stdout]    |                 ^^^^^^^^ cannot infer type for type `{integer}`
[INFO] [stdout]    |
[INFO] [stdout] note: the type is part of the `async` block because of this `await`
[INFO] [stdout]   --> tests/mutex.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             ready(()).pending_once().await;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0698]: type inside `async` block must be known in this context
[INFO] [stdout]   --> tests/mutex.rs:61:18
[INFO] [stdout]    |
[INFO] [stdout] 61 |         for _ in 0..num_tasks {
[INFO] [stdout]    |                  ^ cannot infer type for type `{integer}`
[INFO] [stdout]    |
[INFO] [stdout] note: the type is part of the `async` block because of this `await`
[INFO] [stdout]   --> tests/mutex.rs:62:22
[INFO] [stdout]    |
[INFO] [stdout] 62 |             let () = rx.next().await.unwrap();
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0698]: type inside `async` block must be known in this context
[INFO] [stdout]   --> tests/mutex.rs:61:21
[INFO] [stdout]    |
[INFO] [stdout] 61 |         for _ in 0..num_tasks {
[INFO] [stdout]    |                     ^^^^^^^^^ cannot infer type for type `{integer}`
[INFO] [stdout]    |
[INFO] [stdout] note: the type is part of the `async` block because of this `await`
[INFO] [stdout]   --> tests/mutex.rs:62:22
[INFO] [stdout]    |
[INFO] [stdout] 62 |             let () = rx.next().await.unwrap();
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0698]: type inside `async` block must be known in this context
[INFO] [stdout]   --> tests/mutex.rs:61:18
[INFO] [stdout]    |
[INFO] [stdout] 61 |         for _ in 0..num_tasks {
[INFO] [stdout]    |                  ^^^^^^^^^^^^ cannot infer type for type `{integer}`
[INFO] [stdout]    |
[INFO] [stdout] note: the type is part of the `async` block because of this `await`
[INFO] [stdout]   --> tests/mutex.rs:62:22
[INFO] [stdout]    |
[INFO] [stdout] 62 |             let () = rx.next().await.unwrap();
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0698]: type inside `async` block must be known in this context
[INFO] [stdout]   --> tests/mutex.rs:61:18
[INFO] [stdout]    |
[INFO] [stdout] 61 |         for _ in 0..num_tasks {
[INFO] [stdout]    |                  ^^^^^^^^^^^^ cannot infer type for type `{integer}`
[INFO] [stdout]    |
[INFO] [stdout] note: the type is part of the `async` block because of this `await`
[INFO] [stdout]   --> tests/mutex.rs:62:22
[INFO] [stdout]    |
[INFO] [stdout] 62 |             let () = rx.next().await.unwrap();
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0698]: type inside `async` block must be known in this context
[INFO] [stdout]   --> tests/mutex.rs:64:20
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let lock = mutex.lock().await;
[INFO] [stdout]    |                    ^^^^^ cannot infer type for type `{integer}`
[INFO] [stdout]    |
[INFO] [stdout] note: the type is part of the `async` block because of this `await`
[INFO] [stdout]   --> tests/mutex.rs:64:20
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let lock = mutex.lock().await;
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0698]: type inside `async` block must be known in this context
[INFO] [stdout]   --> tests/mutex.rs:64:20
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let lock = mutex.lock().await;
[INFO] [stdout]    |                    ^^^^^^^^^^^^ cannot infer type for type `{integer}`
[INFO] [stdout]    |
[INFO] [stdout] note: the type is part of the `async` block because of this `await`
[INFO] [stdout]   --> tests/mutex.rs:64:20
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let lock = mutex.lock().await;
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0698]: type inside `async` block must be known in this context
[INFO] [stdout]   --> tests/mutex.rs:64:20
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let lock = mutex.lock().await;
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^ cannot infer type for type `{integer}`
[INFO] [stdout]    |
[INFO] [stdout] note: the type is part of the `async` block because of this `await`
[INFO] [stdout]   --> tests/mutex.rs:64:20
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let lock = mutex.lock().await;
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 18 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433, E0599, E0698.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "189556884ab7de6822caf79698aeb6a5d331f1eac78603dd1d8aa89dccc768c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "189556884ab7de6822caf79698aeb6a5d331f1eac78603dd1d8aa89dccc768c5", kill_on_drop: false }`
[INFO] [stdout] 189556884ab7de6822caf79698aeb6a5d331f1eac78603dd1d8aa89dccc768c5