Nov 18 13:45:13.281 INFO testing futures-io-preview-0.3.0-alpha.7 against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 18 13:45:13.281 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-2/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 18 13:45:13.466 INFO [stdout] f5e0d6d5e08d62a297e53a8edf378f3bfe76af3cc78c3936ce9eb72339e575fd
Nov 18 13:45:13.468 INFO running `"docker" "start" "-a" "f5e0d6d5e08d62a297e53a8edf378f3bfe76af3cc78c3936ce9eb72339e575fd"`
Nov 18 13:45:13.955 INFO [stderr] usermod: no changes
Nov 18 13:45:14.007 INFO [stderr]    Compiling futures-io-preview v0.3.0-alpha.7 (/source)
Nov 18 13:45:14.485 INFO [stderr] error[E0433]: failed to resolve. Could not find `std` in `{{root}}`
Nov 18 13:45:14.485 INFO [stderr]   --> src/lib.rs:25:9
Nov 18 13:45:14.485 INFO [stderr]    |
Nov 18 13:45:14.485 INFO [stderr] 25 |     use std::boxed::Box;
Nov 18 13:45:14.485 INFO [stderr]    |         ^^^ Could not find `std` in `{{root}}`
Nov 18 13:45:14.485 INFO [stderr] 
Nov 18 13:45:14.501 INFO [stderr] error[E0432]: unresolved import `std`
Nov 18 13:45:14.501 INFO [stderr]   --> src/lib.rs:26:9
Nov 18 13:45:14.501 INFO [stderr]    |
Nov 18 13:45:14.501 INFO [stderr] 26 |     use std::cmp;
Nov 18 13:45:14.501 INFO [stderr]    |         ^^^ Could not find `std` in `{{root}}`
Nov 18 13:45:14.501 INFO [stderr] 
Nov 18 13:45:14.505 INFO [stderr] error[E0432]: unresolved import `std`
Nov 18 13:45:14.505 INFO [stderr]   --> src/lib.rs:27:9
Nov 18 13:45:14.505 INFO [stderr]    |
Nov 18 13:45:14.505 INFO [stderr] 27 |     use std::io as StdIo;
Nov 18 13:45:14.505 INFO [stderr]    |         ^^^ Could not find `std` in `{{root}}`
Nov 18 13:45:14.505 INFO [stderr] 
Nov 18 13:45:14.505 INFO [stderr] error[E0432]: unresolved import `std`
Nov 18 13:45:14.505 INFO [stderr]   --> src/lib.rs:28:9
Nov 18 13:45:14.505 INFO [stderr]    |
Nov 18 13:45:14.505 INFO [stderr] 28 |     use std::ptr;
Nov 18 13:45:14.506 INFO [stderr]    |         ^^^ Could not find `std` in `{{root}}`
Nov 18 13:45:14.506 INFO [stderr] 
Nov 18 13:45:14.514 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:45:14.514 INFO [stderr]    --> src/lib.rs:271:47
Nov 18 13:45:14.514 INFO [stderr]     |
Nov 18 13:45:14.514 INFO [stderr] 271 |     impl<T: ?Sized + AsyncRead> AsyncRead for Box<T> {
Nov 18 13:45:14.514 INFO [stderr]     |                                               ^^^ not found in this scope
Nov 18 13:45:14.514 INFO [stderr] 
Nov 18 13:45:14.514 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:45:14.514 INFO [stderr]    --> src/lib.rs:331:49
Nov 18 13:45:14.514 INFO [stderr]     |
Nov 18 13:45:14.514 INFO [stderr] 331 |     impl<T: ?Sized + AsyncWrite> AsyncWrite for Box<T> {
Nov 18 13:45:14.514 INFO [stderr]     |                                                 ^^^ not found in this scope
Nov 18 13:45:14.514 INFO [stderr] 
Nov 18 13:45:14.516 INFO [stderr] warning: unused import: `std::boxed::Box`
Nov 18 13:45:14.516 INFO [stderr]   --> src/lib.rs:25:9
Nov 18 13:45:14.516 INFO [stderr]    |
Nov 18 13:45:14.516 INFO [stderr] 25 |     use std::boxed::Box;
Nov 18 13:45:14.516 INFO [stderr]    |         ^^^^^^^^^^^^^^^
Nov 18 13:45:14.517 INFO [stderr]    |
Nov 18 13:45:14.518 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 18 13:45:14.518 INFO [stderr] 
Nov 18 13:45:14.519 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.519 INFO [stderr]    --> src/lib.rs:119:21
Nov 18 13:45:14.519 INFO [stderr]     |
Nov 18 13:45:14.519 INFO [stderr] 119 |             -> Poll<Result<usize>>;
Nov 18 13:45:14.519 INFO [stderr]     |                     ^^^^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.519 INFO [stderr] 
Nov 18 13:45:14.519 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.519 INFO [stderr]    --> src/lib.rs:144:21
Nov 18 13:45:14.519 INFO [stderr]     |
Nov 18 13:45:14.519 INFO [stderr] 144 |             -> Poll<Result<usize>>
Nov 18 13:45:14.519 INFO [stderr]     |                     ^^^^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.519 INFO [stderr] 
Nov 18 13:45:14.520 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.520 INFO [stderr]    --> src/lib.rs:179:21
Nov 18 13:45:14.520 INFO [stderr]     |
Nov 18 13:45:14.520 INFO [stderr] 179 |             -> Poll<Result<usize>>;
Nov 18 13:45:14.520 INFO [stderr]     |                     ^^^^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.520 INFO [stderr] 
Nov 18 13:45:14.520 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.520 INFO [stderr]    --> src/lib.rs:205:21
Nov 18 13:45:14.520 INFO [stderr]     |
Nov 18 13:45:14.520 INFO [stderr] 205 |             -> Poll<Result<usize>>
Nov 18 13:45:14.520 INFO [stderr]     |                     ^^^^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.520 INFO [stderr] 
Nov 18 13:45:14.520 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.520 INFO [stderr]    --> src/lib.rs:231:59
Nov 18 13:45:14.520 INFO [stderr]     |
Nov 18 13:45:14.520 INFO [stderr] 231 |         fn poll_flush(&mut self, lw: &LocalWaker) -> Poll<Result<()>>;
Nov 18 13:45:14.520 INFO [stderr]     |                                                           ^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.520 INFO [stderr] 
Nov 18 13:45:14.520 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.520 INFO [stderr]    --> src/lib.rs:248:59
Nov 18 13:45:14.520 INFO [stderr]     |
Nov 18 13:45:14.520 INFO [stderr] 248 |         fn poll_close(&mut self, lw: &LocalWaker) -> Poll<Result<()>>;
Nov 18 13:45:14.520 INFO [stderr]     |                                                           ^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.520 INFO [stderr] 
Nov 18 13:45:14.520 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.520 INFO [stderr]    --> src/lib.rs:362:19
Nov 18 13:45:14.520 INFO [stderr]     |
Nov 18 13:45:14.520 INFO [stderr] 362 |         ) -> Poll<Result<usize>> {
Nov 18 13:45:14.520 INFO [stderr]     |                   ^^^^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.520 INFO [stderr] 
Nov 18 13:45:14.520 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.520 INFO [stderr]    --> src/lib.rs:375:58
Nov 18 13:45:14.520 INFO [stderr]     |
Nov 18 13:45:14.520 INFO [stderr] 375 |         fn poll_flush(&mut self, _: &LocalWaker) -> Poll<Result<()>> {
Nov 18 13:45:14.520 INFO [stderr]     |                                                          ^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.520 INFO [stderr] 
Nov 18 13:45:14.520 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.520 INFO [stderr]    --> src/lib.rs:379:59
Nov 18 13:45:14.520 INFO [stderr]     |
Nov 18 13:45:14.520 INFO [stderr] 379 |         fn poll_close(&mut self, lw: &LocalWaker) -> Poll<Result<()>> {
Nov 18 13:45:14.520 INFO [stderr]     |                                                           ^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.520 INFO [stderr] 
Nov 18 13:45:14.521 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.521 INFO [stderr]    --> src/lib.rs:258:25
Nov 18 13:45:14.521 INFO [stderr]     |
Nov 18 13:45:14.521 INFO [stderr] 258 |                 -> Poll<Result<usize>>
Nov 18 13:45:14.521 INFO [stderr]     |                         ^^^^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.521 INFO [stderr] ...
Nov 18 13:45:14.521 INFO [stderr] 272 |         deref_async_read!();
Nov 18 13:45:14.521 INFO [stderr]     |         -------------------- in this macro invocation
Nov 18 13:45:14.521 INFO [stderr] 
Nov 18 13:45:14.521 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.521 INFO [stderr]    --> src/lib.rs:264:25
Nov 18 13:45:14.521 INFO [stderr]     |
Nov 18 13:45:14.521 INFO [stderr] 264 |                 -> Poll<Result<usize>>
Nov 18 13:45:14.521 INFO [stderr]     |                         ^^^^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.521 INFO [stderr] ...
Nov 18 13:45:14.521 INFO [stderr] 272 |         deref_async_read!();
Nov 18 13:45:14.521 INFO [stderr]     |         -------------------- in this macro invocation
Nov 18 13:45:14.521 INFO [stderr] 
Nov 18 13:45:14.521 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.521 INFO [stderr]    --> src/lib.rs:258:25
Nov 18 13:45:14.521 INFO [stderr]     |
Nov 18 13:45:14.521 INFO [stderr] 258 |                 -> Poll<Result<usize>>
Nov 18 13:45:14.521 INFO [stderr]     |                         ^^^^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.521 INFO [stderr] ...
Nov 18 13:45:14.521 INFO [stderr] 276 |         deref_async_read!();
Nov 18 13:45:14.521 INFO [stderr]     |         -------------------- in this macro invocation
Nov 18 13:45:14.521 INFO [stderr] 
Nov 18 13:45:14.521 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.521 INFO [stderr]    --> src/lib.rs:264:25
Nov 18 13:45:14.521 INFO [stderr]     |
Nov 18 13:45:14.521 INFO [stderr] 264 |                 -> Poll<Result<usize>>
Nov 18 13:45:14.521 INFO [stderr]     |                         ^^^^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.521 INFO [stderr] ...
Nov 18 13:45:14.521 INFO [stderr] 276 |         deref_async_read!();
Nov 18 13:45:14.521 INFO [stderr]     |         -------------------- in this macro invocation
Nov 18 13:45:14.521 INFO [stderr] 
Nov 18 13:45:14.521 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.521 INFO [stderr]    --> src/lib.rs:288:25
Nov 18 13:45:14.521 INFO [stderr]     |
Nov 18 13:45:14.521 INFO [stderr] 288 |                 -> Poll<Result<usize>>
Nov 18 13:45:14.522 INFO [stderr]     |                         ^^^^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.522 INFO [stderr] ...
Nov 18 13:45:14.522 INFO [stderr] 296 |         unsafe_delegate_async_read_to_stdio!();
Nov 18 13:45:14.522 INFO [stderr]     |         --------------------------------------- in this macro invocation
Nov 18 13:45:14.522 INFO [stderr] 
Nov 18 13:45:14.522 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.522 INFO [stderr]    --> src/lib.rs:288:25
Nov 18 13:45:14.522 INFO [stderr]     |
Nov 18 13:45:14.522 INFO [stderr] 288 |                 -> Poll<Result<usize>>
Nov 18 13:45:14.522 INFO [stderr]     |                         ^^^^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.522 INFO [stderr] ...
Nov 18 13:45:14.522 INFO [stderr] 300 |         unsafe_delegate_async_read_to_stdio!();
Nov 18 13:45:14.522 INFO [stderr]     |         --------------------------------------- in this macro invocation
Nov 18 13:45:14.522 INFO [stderr] 
Nov 18 13:45:14.522 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.522 INFO [stderr]    --> src/lib.rs:288:25
Nov 18 13:45:14.522 INFO [stderr]     |
Nov 18 13:45:14.522 INFO [stderr] 288 |                 -> Poll<Result<usize>>
Nov 18 13:45:14.522 INFO [stderr]     |                         ^^^^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.522 INFO [stderr] ...
Nov 18 13:45:14.522 INFO [stderr] 304 |         unsafe_delegate_async_read_to_stdio!();
Nov 18 13:45:14.522 INFO [stderr]     |         --------------------------------------- in this macro invocation
Nov 18 13:45:14.522 INFO [stderr] 
Nov 18 13:45:14.524 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.524 INFO [stderr]    --> src/lib.rs:310:25
Nov 18 13:45:14.524 INFO [stderr]     |
Nov 18 13:45:14.524 INFO [stderr] 310 |                 -> Poll<Result<usize>>
Nov 18 13:45:14.524 INFO [stderr]     |                         ^^^^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.524 INFO [stderr] ...
Nov 18 13:45:14.524 INFO [stderr] 332 |         deref_async_write!();
Nov 18 13:45:14.524 INFO [stderr]     |         --------------------- in this macro invocation
Nov 18 13:45:14.524 INFO [stderr] 
Nov 18 13:45:14.524 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.524 INFO [stderr]    --> src/lib.rs:316:25
Nov 18 13:45:14.524 INFO [stderr]     |
Nov 18 13:45:14.524 INFO [stderr] 316 |                 -> Poll<Result<usize>>
Nov 18 13:45:14.524 INFO [stderr]     |                         ^^^^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.524 INFO [stderr] ...
Nov 18 13:45:14.524 INFO [stderr] 332 |         deref_async_write!();
Nov 18 13:45:14.524 INFO [stderr]     |         --------------------- in this macro invocation
Nov 18 13:45:14.524 INFO [stderr] 
Nov 18 13:45:14.524 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.524 INFO [stderr]    --> src/lib.rs:321:63
Nov 18 13:45:14.524 INFO [stderr]     |
Nov 18 13:45:14.524 INFO [stderr] 321 |             fn poll_flush(&mut self, lw: &LocalWaker) -> Poll<Result<()>> {
Nov 18 13:45:14.524 INFO [stderr]     |                                                               ^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.524 INFO [stderr] ...
Nov 18 13:45:14.524 INFO [stderr] 332 |         deref_async_write!();
Nov 18 13:45:14.524 INFO [stderr]     |         --------------------- in this macro invocation
Nov 18 13:45:14.524 INFO [stderr] 
Nov 18 13:45:14.524 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.524 INFO [stderr]    --> src/lib.rs:325:63
Nov 18 13:45:14.524 INFO [stderr]     |
Nov 18 13:45:14.524 INFO [stderr] 325 |             fn poll_close(&mut self, lw: &LocalWaker) -> Poll<Result<()>> {
Nov 18 13:45:14.524 INFO [stderr]     |                                                               ^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.524 INFO [stderr] ...
Nov 18 13:45:14.524 INFO [stderr] 332 |         deref_async_write!();
Nov 18 13:45:14.524 INFO [stderr]     |         --------------------- in this macro invocation
Nov 18 13:45:14.524 INFO [stderr] 
Nov 18 13:45:14.524 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.524 INFO [stderr]    --> src/lib.rs:310:25
Nov 18 13:45:14.524 INFO [stderr]     |
Nov 18 13:45:14.524 INFO [stderr] 310 |                 -> Poll<Result<usize>>
Nov 18 13:45:14.524 INFO [stderr]     |                         ^^^^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.524 INFO [stderr] ...
Nov 18 13:45:14.524 INFO [stderr] 336 |         deref_async_write!();
Nov 18 13:45:14.524 INFO [stderr]     |         --------------------- in this macro invocation
Nov 18 13:45:14.524 INFO [stderr] 
Nov 18 13:45:14.524 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.524 INFO [stderr]    --> src/lib.rs:316:25
Nov 18 13:45:14.524 INFO [stderr]     |
Nov 18 13:45:14.524 INFO [stderr] 316 |                 -> Poll<Result<usize>>
Nov 18 13:45:14.524 INFO [stderr]     |                         ^^^^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.524 INFO [stderr] ...
Nov 18 13:45:14.524 INFO [stderr] 336 |         deref_async_write!();
Nov 18 13:45:14.524 INFO [stderr]     |         --------------------- in this macro invocation
Nov 18 13:45:14.524 INFO [stderr] 
Nov 18 13:45:14.524 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.524 INFO [stderr]    --> src/lib.rs:321:63
Nov 18 13:45:14.524 INFO [stderr]     |
Nov 18 13:45:14.524 INFO [stderr] 321 |             fn poll_flush(&mut self, lw: &LocalWaker) -> Poll<Result<()>> {
Nov 18 13:45:14.524 INFO [stderr]     |                                                               ^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.524 INFO [stderr] ...
Nov 18 13:45:14.524 INFO [stderr] 336 |         deref_async_write!();
Nov 18 13:45:14.524 INFO [stderr]     |         --------------------- in this macro invocation
Nov 18 13:45:14.524 INFO [stderr] 
Nov 18 13:45:14.524 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.524 INFO [stderr]    --> src/lib.rs:325:63
Nov 18 13:45:14.524 INFO [stderr]     |
Nov 18 13:45:14.524 INFO [stderr] 325 |             fn poll_close(&mut self, lw: &LocalWaker) -> Poll<Result<()>> {
Nov 18 13:45:14.524 INFO [stderr]     |                                                               ^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.524 INFO [stderr] ...
Nov 18 13:45:14.524 INFO [stderr] 336 |         deref_async_write!();
Nov 18 13:45:14.524 INFO [stderr]     |         --------------------- in this macro invocation
Nov 18 13:45:14.524 INFO [stderr] 
Nov 18 13:45:14.524 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.524 INFO [stderr]    --> src/lib.rs:342:25
Nov 18 13:45:14.524 INFO [stderr]     |
Nov 18 13:45:14.524 INFO [stderr] 342 |                 -> Poll<Result<usize>>
Nov 18 13:45:14.524 INFO [stderr]     |                         ^^^^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.524 INFO [stderr] ...
Nov 18 13:45:14.525 INFO [stderr] 385 |         delegate_async_write_to_stdio!();
Nov 18 13:45:14.525 INFO [stderr]     |         --------------------------------- in this macro invocation
Nov 18 13:45:14.525 INFO [stderr] 
Nov 18 13:45:14.525 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.525 INFO [stderr]    --> src/lib.rs:347:62
Nov 18 13:45:14.525 INFO [stderr]     |
Nov 18 13:45:14.525 INFO [stderr] 347 |             fn poll_flush(&mut self, _: &LocalWaker) -> Poll<Result<()>> {
Nov 18 13:45:14.525 INFO [stderr]     |                                                              ^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.525 INFO [stderr] ...
Nov 18 13:45:14.525 INFO [stderr] 385 |         delegate_async_write_to_stdio!();
Nov 18 13:45:14.525 INFO [stderr]     |         --------------------------------- in this macro invocation
Nov 18 13:45:14.525 INFO [stderr] 
Nov 18 13:45:14.525 INFO [stderr] error[E0107]: wrong number of type arguments: expected 2, found 1
Nov 18 13:45:14.525 INFO [stderr]    --> src/lib.rs:351:63
Nov 18 13:45:14.525 INFO [stderr]     |
Nov 18 13:45:14.525 INFO [stderr] 351 |             fn poll_close(&mut self, lw: &LocalWaker) -> Poll<Result<()>> {
Nov 18 13:45:14.525 INFO [stderr]     |                                                               ^^^^^^^^^^ expected 2 type arguments
Nov 18 13:45:14.525 INFO [stderr] ...
Nov 18 13:45:14.525 INFO [stderr] 385 |         delegate_async_write_to_stdio!();
Nov 18 13:45:14.525 INFO [stderr]     |         --------------------------------- in this macro invocation
Nov 18 13:45:14.525 INFO [stderr] 
Nov 18 13:45:14.525 INFO [stderr] error: aborting due to 33 previous errors
Nov 18 13:45:14.525 INFO [stderr] 
Nov 18 13:45:14.525 INFO [stderr] Some errors occurred: E0107, E0412, E0432, E0433.
Nov 18 13:45:14.525 INFO [stderr] For more information about an error, try `rustc --explain E0107`.
Nov 18 13:45:14.529 INFO [stderr] error: Could not compile `futures-io-preview`.
Nov 18 13:45:14.529 INFO [stderr] 
Nov 18 13:45:14.529 INFO [stderr] To learn more, run the command again with --verbose.
Nov 18 13:45:14.532 INFO [stderr] su: No module specific data is present
Nov 18 13:45:14.856 INFO running `"docker" "inspect" "f5e0d6d5e08d62a297e53a8edf378f3bfe76af3cc78c3936ce9eb72339e575fd"`
Nov 18 13:45:14.940 INFO running `"docker" "rm" "-f" "f5e0d6d5e08d62a297e53a8edf378f3bfe76af3cc78c3936ce9eb72339e575fd"`
Nov 18 13:45:15.130 INFO [stdout] f5e0d6d5e08d62a297e53a8edf378f3bfe76af3cc78c3936ce9eb72339e575fd