[INFO] crate futures-preview 0.3.0-alpha.18 is already in cache
[INFO] checking futures-preview-0.3.0-alpha.18 against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] extracting crate futures-preview 0.3.0-alpha.18 into work/builds/worker-3/source
[INFO] validating manifest of crates.io crate futures-preview 0.3.0-alpha.18 on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate futures-preview 0.3.0-alpha.18
[INFO] finished tweaking crates.io crate futures-preview 0.3.0-alpha.18
[INFO] tweaked toml for crates.io crate futures-preview 0.3.0-alpha.18 written to work/builds/worker-3/source/Cargo.toml
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/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=forbid" "-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" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9412878fff3f5cd5459b204740d1a3dffecba222fe93e00688276ebdf488d9eb
[INFO] running `"docker" "start" "-a" "9412878fff3f5cd5459b204740d1a3dffecba222fe93e00688276ebdf488d9eb"`
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.18 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures_test`
[INFO] [stderr]  --> tests/stream_select_next_some.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use futures_test::future::FutureTestExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^ use of undeclared type or module `futures_test`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures_test`
[INFO] [stderr]  --> tests/stream_select_next_some.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use futures_test::task::new_count_waker;
[INFO] [stderr]   |     ^^^^^^^^^^^^ use of undeclared type or module `futures_test`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `futures::select`
[INFO] [stderr]  --> tests/stream_select_next_some.rs:3:23
[INFO] [stderr]   |
[INFO] [stderr] 3 | use futures::{future, select};
[INFO] [stderr]   |                       ^^^^^^ no `select` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `futures_util::select`
[INFO] [stderr]   --> tests/stream_select_next_some.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |     use futures_util::select;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^ no `select` in the root
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `select`
[INFO] [stderr]   --> tests/stream_select_next_some.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |             select! {
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `select`
[INFO] [stderr]   --> tests/stream_select_next_some.rs:74:13
[INFO] [stderr]    |
[INFO] [stderr] 74 |             select! {
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `new_count_waker` in this scope
[INFO] [stderr]   --> tests/stream_select_next_some.rs:12:28
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let (waker, counter) = new_count_waker();
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `pending_once` found for type `futures_util::future::ready::Ready<{integer}>` in the current scope
[INFO] [stderr]   --> tests/stream_select_next_some.rs:41:40
[INFO] [stderr]    |
[INFO] [stderr] 41 |         let mut fut = future::ready(1).pending_once();
[INFO] [stderr]    |                                        ^^^^^^^^^^^^ method not found in `futures_util::future::ready::Ready<{integer}>`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> tests/stream_select_next_some.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |         assert_eq!(total, 6);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `pending_once` found for type `futures_util::future::ready::Ready<{integer}>` in the current scope
[INFO] [stderr]   --> tests/stream_select_next_some.rs:70:40
[INFO] [stderr]    |
[INFO] [stderr] 70 |         let mut fut = future::ready(1).pending_once();
[INFO] [stderr]    |                                        ^^^^^^^^^^^^ method not found in `futures_util::future::ready::Ready<{integer}>`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> tests/stream_select_next_some.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |         assert_eq!(total, 6);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 9 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0432, E0433, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[INFO] [stderr] error: Could not compile `futures-preview`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures_test`
[INFO] [stderr]  --> tests/futures_unordered.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use futures_test::future::FutureTestExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^ use of undeclared type or module `futures_test`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures_test`
[INFO] [stderr]  --> tests/futures_unordered.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use futures_test::task::noop_context;
[INFO] [stderr]   |     ^^^^^^^^^^^^ use of undeclared type or module `futures_test`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `futures_test`
[INFO] [stderr]  --> tests/futures_unordered.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use futures_test::{assert_stream_done, assert_stream_next};
[INFO] [stderr]   |     ^^^^^^^^^^^^ use of undeclared type or module `futures_test`
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_stream_next`
[INFO] [stderr]    --> tests/futures_unordered.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 |     assert_stream_next!(stream, ());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_stream_next`
[INFO] [stderr]    --> tests/futures_unordered.rs:174:5
[INFO] [stderr]     |
[INFO] [stderr] 174 |     assert_stream_next!(stream, ());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_stream_next`
[INFO] [stderr]    --> tests/futures_unordered.rs:175:5
[INFO] [stderr]     |
[INFO] [stderr] 175 |     assert_stream_next!(stream, ());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_stream_done`
[INFO] [stderr]    --> tests/futures_unordered.rs:176:5
[INFO] [stderr]     |
[INFO] [stderr] 176 |     assert_stream_done!(stream);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `noop_context` in this scope
[INFO] [stderr]   --> tests/futures_unordered.rs:12:18
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut cx = noop_context();
[INFO] [stderr]    |                  ^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `noop_context` in this scope
[INFO] [stderr]   --> tests/futures_unordered.rs:75:18
[INFO] [stderr]    |
[INFO] [stderr] 75 |     let mut cx = noop_context();
[INFO] [stderr]    |                  ^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `noop_context` in this scope
[INFO] [stderr]    --> tests/futures_unordered.rs:108:19
[INFO] [stderr]     |
[INFO] [stderr] 108 |     let cx = &mut noop_context();
[INFO] [stderr]     |                   ^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved imports `futures::pending`, `futures::poll`, `futures::join`, `futures::try_join`, `futures::select`
[INFO] [stderr]  --> tests/async_await_macros.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 | use futures::{Poll, pending, pin_mut, poll, join, try_join, select};
[INFO] [stderr]   |                     ^^^^^^^           ^^^^  ^^^^  ^^^^^^^^  ^^^^^^ no `select` in the root
[INFO] [stderr]   |                     |                 |     |     |
[INFO] [stderr]   |                     |                 |     |     no `try_join` in the root
[INFO] [stderr]   |                     |                 |     no `join` in the root
[INFO] [stderr]   |                     |                 no `poll` in the root
[INFO] [stderr]   |                     |                 help: a similar name exists in the module: `Poll`
[INFO] [stderr]   |                     no `pending` in the root
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `pending`
[INFO] [stderr]   --> tests/async_await_macros.rs:13:32
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let pending_once = async { pending!() };
[INFO] [stderr]    |                                ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `poll`
[INFO] [stderr]   --> tests/async_await_macros.rs:16:35
[INFO] [stderr]    |
[INFO] [stderr] 16 |         assert_eq!(Poll::Pending, poll!(&mut pending_once));
[INFO] [stderr]    |                                   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `poll`
[INFO] [stderr]   --> tests/async_await_macros.rs:17:37
[INFO] [stderr]    |
[INFO] [stderr] 17 |         assert_eq!(Poll::Ready(()), poll!(&mut pending_once));
[INFO] [stderr]    |                                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `join`
[INFO] [stderr]   --> tests/async_await_macros.rs:27:19
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let res = join!(rx1, rx2);
[INFO] [stderr]    |                   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `poll`
[INFO] [stderr]   --> tests/async_await_macros.rs:33:35
[INFO] [stderr]    |
[INFO] [stderr] 33 |         assert_eq!(Poll::Pending, poll!(&mut fut));
[INFO] [stderr]    |                                   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `poll`
[INFO] [stderr]   --> tests/async_await_macros.rs:35:35
[INFO] [stderr]    |
[INFO] [stderr] 35 |         assert_eq!(Poll::Pending, poll!(&mut fut));
[INFO] [stderr]    |                                   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `poll`
[INFO] [stderr]   --> tests/async_await_macros.rs:37:37
[INFO] [stderr]    |
[INFO] [stderr] 37 |         assert_eq!(Poll::Ready(()), poll!(&mut fut));
[INFO] [stderr]    |                                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `select`
[INFO] [stderr]   --> tests/async_await_macros.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |         select! {
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `select`
[INFO] [stderr]   --> tests/async_await_macros.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |         select! {
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `select`
[INFO] [stderr]   --> tests/async_await_macros.rs:82:13
[INFO] [stderr]    |
[INFO] [stderr] 82 |             select! {
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `select`
[INFO] [stderr]    --> tests/async_await_macros.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 |         select! {
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `select`
[INFO] [stderr]    --> tests/async_await_macros.rs:133:9
[INFO] [stderr]     |
[INFO] [stderr] 133 |         select! {
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `select`
[INFO] [stderr]    --> tests/async_await_macros.rs:148:9
[INFO] [stderr]     |
[INFO] [stderr] 148 |         select! {
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `select`
[INFO] [stderr]    --> tests/async_await_macros.rs:157:9
[INFO] [stderr]     |
[INFO] [stderr] 157 |         select! {
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `join`
[INFO] [stderr]    --> tests/async_await_macros.rs:169:9
[INFO] [stderr]     |
[INFO] [stderr] 169 |         join!(ready)
[INFO] [stderr]     |         ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `join`
[INFO] [stderr]    --> tests/async_await_macros.rs:176:9
[INFO] [stderr]     |
[INFO] [stderr] 176 |         join!(ready1, ready2)
[INFO] [stderr]     |         ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `try_join`
[INFO] [stderr]    --> tests/async_await_macros.rs:185:9
[INFO] [stderr]     |
[INFO] [stderr] 185 |         try_join!(ready)
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `try_join`
[INFO] [stderr]    --> tests/async_await_macros.rs:192:9
[INFO] [stderr]     |
[INFO] [stderr] 192 |         try_join!(ready1, ready2)
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `join`
[INFO] [stderr]    --> tests/async_await_macros.rs:200:9
[INFO] [stderr]     |
[INFO] [stderr] 200 |         join!(async {}, async {})
[INFO] [stderr]     |         ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `try_join`
[INFO] [stderr]    --> tests/async_await_macros.rs:207:9
[INFO] [stderr]     |
[INFO] [stderr] 207 |         try_join!(
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `poll!` in this scope
[INFO] [stderr]   --> tests/macro_comma_support.rs:23:17
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let _ = poll!(async { () }.boxed(),);
[INFO] [stderr]    |                 ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `join!` in this scope
[INFO] [stderr]   --> tests/macro_comma_support.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         join!(future1, future2,);
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `try_join!` in this scope
[INFO] [stderr]   --> tests/macro_comma_support.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |         try_join!(future1, future2,)
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::sink::SinkExt`
[INFO] [stderr]  --> tests/async_await_macros.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use futures::sink::SinkExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 21 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `futures-preview`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures_test`
[INFO] [stderr]  --> tests/io_lines.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use futures_test::io::AsyncReadTestExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^ use of undeclared type or module `futures_test`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures_test`
[INFO] [stderr]  --> tests/io_lines.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use futures_test::task::noop_context;
[INFO] [stderr]   |     ^^^^^^^^^^^^ use of undeclared type or module `futures_test`
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `futures-preview`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0599]: no method named `pending_once` found for type `futures_util::future::ready::Ready<()>` in the current scope
[INFO] [stderr]    --> tests/futures_unordered.rs:171:33
[INFO] [stderr]     |
[INFO] [stderr] 171 |     let fut = future::ready(()).pending_once().assert_unmoved();
[INFO] [stderr]     |                                 ^^^^^^^^^^^^ method not found in `futures_util::future::ready::Ready<()>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 11 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0432, E0433, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[INFO] [stderr] error[E0425]: cannot find function `noop_context` in this scope
[INFO] [stderr]   --> tests/io_lines.rs:31:18
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let mut cx = noop_context();
[INFO] [stderr]    |                  ^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `futures-preview`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0599]: no method named `interleave_pending` found for type `futures_util::try_stream::into_async_read::IntoAsyncRead<futures_util::stream::map::Map<futures_util::stream::iter::Iter<std::vec::IntoIter<&[u8]>>, fn(&[u8]) -> std::result::Result<&[u8], std::io::error::Error> {std::result::Result::<&[u8], std::io::error::Error>::Ok}>>` in the current scope
[INFO] [stderr]   --> tests/io_lines.rs:50:10
[INFO] [stderr]    |
[INFO] [stderr] 50 |         .interleave_pending();
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^ method not found in `futures_util::try_stream::into_async_read::IntoAsyncRead<futures_util::stream::map::Map<futures_util::stream::iter::Iter<std::vec::IntoIter<&[u8]>>, fn(&[u8]) -> std::result::Result<&[u8], std::io::error::Error> {std::result::Result::<&[u8], std::io::error::Error>::Ok}>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `interleave_pending` found for type `futures_util::try_stream::into_async_read::IntoAsyncRead<futures_util::stream::map::Map<futures_util::stream::iter::Iter<std::vec::IntoIter<&[u8]>>, fn(&[u8]) -> std::result::Result<&[u8], std::io::error::Error> {std::result::Result::<&[u8], std::io::error::Error>::Ok}>>` in the current scope
[INFO] [stderr]   --> tests/io_lines.rs:58:10
[INFO] [stderr]    |
[INFO] [stderr] 58 |         .interleave_pending();
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^ method not found in `futures_util::try_stream::into_async_read::IntoAsyncRead<futures_util::stream::map::Map<futures_util::stream::iter::Iter<std::vec::IntoIter<&[u8]>>, fn(&[u8]) -> std::result::Result<&[u8], std::io::error::Error> {std::result::Result::<&[u8], std::io::error::Error>::Ok}>>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0433, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[INFO] [stderr] error: Could not compile `futures-preview`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures_test`
[INFO] [stderr]  --> tests/mutex.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use futures_test::future::FutureTestExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^ use of undeclared type or module `futures_test`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures_test`
[INFO] [stderr]  --> tests/mutex.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use futures_test::task::{panic_context, new_count_waker};
[INFO] [stderr]   |     ^^^^^^^^^^^^ use of undeclared type or module `futures_test`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `panic_context` in this scope
[INFO] [stderr]   --> tests/mutex.rs:16:46
[INFO] [stderr]    |
[INFO] [stderr] 16 |         assert!(mutex.lock().poll_unpin(&mut panic_context()).is_ready());
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `new_count_waker` in this scope
[INFO] [stderr]   --> tests/mutex.rs:23:28
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let (waker, counter) = new_count_waker();
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `panic_context` in this scope
[INFO] [stderr]   --> tests/mutex.rs:24:45
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let lock = mutex.lock().poll_unpin(&mut panic_context());
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `panic_context` in this scope
[INFO] [stderr]   --> tests/mutex.rs:35:36
[INFO] [stderr]    |
[INFO] [stderr] 35 |     assert!(waiter.poll_unpin(&mut panic_context()).is_ready());
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `pending_once` found for type `futures_util::future::ready::Ready<()>` in the current scope
[INFO] [stderr]   --> tests/mutex.rs:55:23
[INFO] [stderr]    |
[INFO] [stderr] 55 |             ready(()).pending_once().await;
[INFO] [stderr]    |                       ^^^^^^^^^^^^ method not found in `futures_util::future::ready::Ready<()>`
[INFO] [stderr] 
[INFO] [stderr] error[E0698]: type inside `async` object must be known in this context
[INFO] [stderr]   --> tests/mutex.rs:54:28
[INFO] [stderr]    |
[INFO] [stderr] 54 |             let mut lock = mutex.lock().await;
[INFO] [stderr]    |                            ^^^^^ cannot infer type for `{integer}`
[INFO] [stderr]    |
[INFO] [stderr] note: the type is part of the `async` object because of this `await`
[INFO] [stderr]   --> tests/mutex.rs:54:28
[INFO] [stderr]    |
[INFO] [stderr] 54 |             let mut lock = mutex.lock().await;
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0698]: type inside `async` object must be known in this context
[INFO] [stderr]   --> tests/mutex.rs:54:28
[INFO] [stderr]    |
[INFO] [stderr] 54 |             let mut lock = mutex.lock().await;
[INFO] [stderr]    |                            ^^^^^^^^^^^^ cannot infer type for `{integer}`
[INFO] [stderr]    |
[INFO] [stderr] note: the type is part of the `async` object because of this `await`
[INFO] [stderr]   --> tests/mutex.rs:54:28
[INFO] [stderr]    |
[INFO] [stderr] 54 |             let mut lock = mutex.lock().await;
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0698]: type inside `async` object must be known in this context
[INFO] [stderr]   --> tests/mutex.rs:54:28
[INFO] [stderr]    |
[INFO] [stderr] 54 |             let mut lock = mutex.lock().await;
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^ cannot infer type for `{integer}`
[INFO] [stderr]    |
[INFO] [stderr] note: the type is part of the `async` object because of this `await`
[INFO] [stderr]   --> tests/mutex.rs:54:28
[INFO] [stderr]    |
[INFO] [stderr] 54 |             let mut lock = mutex.lock().await;
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0698]: type inside `async` object must be known in this context
[INFO] [stderr]   --> tests/mutex.rs:54:17
[INFO] [stderr]    |
[INFO] [stderr] 54 |             let mut lock = mutex.lock().await;
[INFO] [stderr]    |                 ^^^^^^^^ cannot infer type for `{integer}`
[INFO] [stderr]    |
[INFO] [stderr] note: the type is part of the `async` object because of this `await`
[INFO] [stderr]   --> tests/mutex.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 |             ready(()).pending_once().await;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0698]: type inside `async` object must be known in this context
[INFO] [stderr]   --> tests/mutex.rs:63:18
[INFO] [stderr]    |
[INFO] [stderr] 63 |         for _ in 0..num_tasks {
[INFO] [stderr]    |                  ^^^^^^^^^^^^ cannot infer type for `{integer}`
[INFO] [stderr]    |
[INFO] [stderr] note: the type is part of the `async` object because of this `await`
[INFO] [stderr]   --> tests/mutex.rs:64:22
[INFO] [stderr]    |
[INFO] [stderr] 64 |             let () = rx.next().await.unwrap();
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0698]: type inside `async` object must be known in this context
[INFO] [stderr]   --> tests/mutex.rs:63:18
[INFO] [stderr]    |
[INFO] [stderr] 63 |         for _ in 0..num_tasks {
[INFO] [stderr]    |                  ^ cannot infer type for `{integer}`
[INFO] [stderr]    |
[INFO] [stderr] note: the type is part of the `async` object because of this `await`
[INFO] [stderr]   --> tests/mutex.rs:64:22
[INFO] [stderr]    |
[INFO] [stderr] 64 |             let () = rx.next().await.unwrap();
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0698]: type inside `async` object must be known in this context
[INFO] [stderr]   --> tests/mutex.rs:63:21
[INFO] [stderr]    |
[INFO] [stderr] 63 |         for _ in 0..num_tasks {
[INFO] [stderr]    |                     ^^^^^^^^^ cannot infer type for `{integer}`
[INFO] [stderr]    |
[INFO] [stderr] note: the type is part of the `async` object because of this `await`
[INFO] [stderr]   --> tests/mutex.rs:64:22
[INFO] [stderr]    |
[INFO] [stderr] 64 |             let () = rx.next().await.unwrap();
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0698]: type inside `async` object must be known in this context
[INFO] [stderr]   --> tests/mutex.rs:63:18
[INFO] [stderr]    |
[INFO] [stderr] 63 |         for _ in 0..num_tasks {
[INFO] [stderr]    |                  ^^^^^^^^^^^^ cannot infer type for `{integer}`
[INFO] [stderr]    |
[INFO] [stderr] note: the type is part of the `async` object because of this `await`
[INFO] [stderr]   --> tests/mutex.rs:64:22
[INFO] [stderr]    |
[INFO] [stderr] 64 |             let () = rx.next().await.unwrap();
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0698]: type inside `async` object must be known in this context
[INFO] [stderr]   --> tests/mutex.rs:66:20
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let lock = mutex.lock().await;
[INFO] [stderr]    |                    ^^^^^ cannot infer type for `{integer}`
[INFO] [stderr]    |
[INFO] [stderr] note: the type is part of the `async` object because of this `await`
[INFO] [stderr]   --> tests/mutex.rs:66:20
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let lock = mutex.lock().await;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0698]: type inside `async` object must be known in this context
[INFO] [stderr]   --> tests/mutex.rs:66:20
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let lock = mutex.lock().await;
[INFO] [stderr]    |                    ^^^^^^^^^^^^ cannot infer type for `{integer}`
[INFO] [stderr]    |
[INFO] [stderr] note: the type is part of the `async` object because of this `await`
[INFO] [stderr]   --> tests/mutex.rs:66:20
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let lock = mutex.lock().await;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0698]: type inside `async` object must be known in this context
[INFO] [stderr]   --> tests/mutex.rs:66:20
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let lock = mutex.lock().await;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^ cannot infer type for `{integer}`
[INFO] [stderr]    |
[INFO] [stderr] note: the type is part of the `async` object because of this `await`
[INFO] [stderr]   --> tests/mutex.rs:66:20
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let lock = mutex.lock().await;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 18 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0433, E0599, E0698.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[INFO] [stderr] error: Could not compile `futures-preview`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "9412878fff3f5cd5459b204740d1a3dffecba222fe93e00688276ebdf488d9eb"`
[INFO] running `"docker" "rm" "-f" "9412878fff3f5cd5459b204740d1a3dffecba222fe93e00688276ebdf488d9eb"`
[INFO] [stdout] 9412878fff3f5cd5459b204740d1a3dffecba222fe93e00688276ebdf488d9eb