Nov 18 13:46:27.204 INFO testing futures-core-preview-0.3.0-alpha.7 against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 18 13:46:27.206 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-1/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 13:46:27.787 INFO [stdout] 3a9e77152fca70d6fd567055a31e3826790879791acbe1960b91bdd659bc66e5
Nov 18 13:46:27.795 INFO running `"docker" "start" "-a" "3a9e77152fca70d6fd567055a31e3826790879791acbe1960b91bdd659bc66e5"`
Nov 18 13:46:28.891 INFO [stderr] usermod: no changes
Nov 18 13:46:28.963 INFO [stderr]    Compiling futures-core-preview v0.3.0-alpha.7 (/source)
Nov 18 13:46:29.267 INFO [stderr] error[E0433]: failed to resolve. Could not find `std` in `{{root}}`
Nov 18 13:46:29.267 INFO [stderr]    --> src/future/future_obj.rs:194:9
Nov 18 13:46:29.267 INFO [stderr]     |
Nov 18 13:46:29.268 INFO [stderr] 194 |     use std::boxed::Box;
Nov 18 13:46:29.268 INFO [stderr]     |         ^^^ Could not find `std` in `{{root}}`
Nov 18 13:46:29.268 INFO [stderr] 
Nov 18 13:46:29.268 INFO [stderr] error[E0433]: failed to resolve. Could not find `std` in `{{root}}`
Nov 18 13:46:29.268 INFO [stderr]    --> src/stream/stream_obj.rs:196:9
Nov 18 13:46:29.269 INFO [stderr]     |
Nov 18 13:46:29.269 INFO [stderr] 196 |     use std::boxed::Box;
Nov 18 13:46:29.269 INFO [stderr]     |         ^^^ Could not find `std` in `{{root}}`
Nov 18 13:46:29.269 INFO [stderr] 
Nov 18 13:46:29.270 INFO [stderr] error[E0433]: failed to resolve. Could not find `std` in `{{root}}`
Nov 18 13:46:29.270 INFO [stderr]    --> src/stream/mod.rs:136:9
Nov 18 13:46:29.270 INFO [stderr]     |
Nov 18 13:46:29.270 INFO [stderr] 136 |     use std::boxed::Box;
Nov 18 13:46:29.270 INFO [stderr]     |         ^^^ Could not find `std` in `{{root}}`
Nov 18 13:46:29.271 INFO [stderr] 
Nov 18 13:46:29.271 INFO [stderr] error[E0433]: failed to resolve. Could not find `std` in `{{root}}`
Nov 18 13:46:29.271 INFO [stderr]  --> src/task/mod.rs:8:13
Nov 18 13:46:29.271 INFO [stderr]   |
Nov 18 13:46:29.271 INFO [stderr] 8 |     pub use std::task::{Wake, local_waker, local_waker_from_nonlocal};
Nov 18 13:46:29.271 INFO [stderr]   |             ^^^ Could not find `std` in `{{root}}`
Nov 18 13:46:29.272 INFO [stderr] 
Nov 18 13:46:29.272 INFO [stderr] error[E0433]: failed to resolve. Use of undeclared type or module `Box`
Nov 18 13:46:29.272 INFO [stderr]    --> src/future/future_obj.rs:200:13
Nov 18 13:46:29.272 INFO [stderr]     |
Nov 18 13:46:29.272 INFO [stderr] 200 |             Box::into_raw(self) as *mut ()
Nov 18 13:46:29.272 INFO [stderr]     |             ^^^ Use of undeclared type or module `Box`
Nov 18 13:46:29.273 INFO [stderr] 
Nov 18 13:46:29.273 INFO [stderr] error[E0433]: failed to resolve. Use of undeclared type or module `Box`
Nov 18 13:46:29.273 INFO [stderr]    --> src/future/future_obj.rs:210:18
Nov 18 13:46:29.273 INFO [stderr]     |
Nov 18 13:46:29.273 INFO [stderr] 210 |             drop(Box::from_raw(ptr as *mut F))
Nov 18 13:46:29.273 INFO [stderr]     |                  ^^^ Use of undeclared type or module `Box`
Nov 18 13:46:29.274 INFO [stderr] 
Nov 18 13:46:29.274 INFO [stderr] error[E0433]: failed to resolve. Use of undeclared type or module `Box`
Nov 18 13:46:29.274 INFO [stderr]    --> src/future/future_obj.rs:233:18
Nov 18 13:46:29.274 INFO [stderr]     |
Nov 18 13:46:29.274 INFO [stderr] 233 |             drop(Box::from_raw(ptr as *mut Pin<Box<T>>));
Nov 18 13:46:29.274 INFO [stderr]     |                  ^^^ Use of undeclared type or module `Box`
Nov 18 13:46:29.275 INFO [stderr] 
Nov 18 13:46:29.319 INFO [stderr] error[E0433]: failed to resolve. Use of undeclared type or module `Box`
Nov 18 13:46:29.319 INFO [stderr]    --> src/stream/stream_obj.rs:202:13
Nov 18 13:46:29.319 INFO [stderr]     |
Nov 18 13:46:29.320 INFO [stderr] 202 |             Box::into_raw(self) as *mut ()
Nov 18 13:46:29.320 INFO [stderr]     |             ^^^ Use of undeclared type or module `Box`
Nov 18 13:46:29.320 INFO [stderr] 
Nov 18 13:46:29.320 INFO [stderr] error[E0433]: failed to resolve. Use of undeclared type or module `Box`
Nov 18 13:46:29.320 INFO [stderr]    --> src/stream/stream_obj.rs:212:18
Nov 18 13:46:29.321 INFO [stderr]     |
Nov 18 13:46:29.321 INFO [stderr] 212 |             drop(Box::from_raw(ptr as *mut F))
Nov 18 13:46:29.321 INFO [stderr]     |                  ^^^ Use of undeclared type or module `Box`
Nov 18 13:46:29.321 INFO [stderr] 
Nov 18 13:46:29.322 INFO [stderr] error[E0433]: failed to resolve. Use of undeclared type or module `Box`
Nov 18 13:46:29.322 INFO [stderr]    --> src/stream/stream_obj.rs:230:18
Nov 18 13:46:29.322 INFO [stderr]     |
Nov 18 13:46:29.322 INFO [stderr] 230 |             drop(Box::from_raw(ptr as *mut F))
Nov 18 13:46:29.322 INFO [stderr]     |                  ^^^ Use of undeclared type or module `Box`
Nov 18 13:46:29.323 INFO [stderr] 
Nov 18 13:46:29.367 INFO [stderr] error[E0433]: failed to resolve. Could not find `std` in `{{root}}`
Nov 18 13:46:29.367 INFO [stderr]    --> src/stream/mod.rs:149:34
Nov 18 13:46:29.367 INFO [stderr]     |
Nov 18 13:46:29.368 INFO [stderr] 149 |     impl<S: Stream> Stream for ::std::panic::AssertUnwindSafe<S> {
Nov 18 13:46:29.368 INFO [stderr]     |                                  ^^^ Could not find `std` in `{{root}}`
Nov 18 13:46:29.368 INFO [stderr] 
Nov 18 13:46:29.368 INFO [stderr] error[E0433]: failed to resolve. Could not find `std` in `{{root}}`
Nov 18 13:46:29.368 INFO [stderr]    --> src/stream/mod.rs:160:33
Nov 18 13:46:29.369 INFO [stderr]     |
Nov 18 13:46:29.369 INFO [stderr] 160 |     impl<T: Unpin> Stream for ::std::collections::VecDeque<T> {
Nov 18 13:46:29.369 INFO [stderr]     |                                 ^^^ Could not find `std` in `{{root}}`
Nov 18 13:46:29.369 INFO [stderr] 
Nov 18 13:46:29.369 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.370 INFO [stderr]    --> src/future/future_obj.rs:196:54
Nov 18 13:46:29.370 INFO [stderr]     |
Nov 18 13:46:29.370 INFO [stderr] 196 |     unsafe impl<'a, T, F> UnsafeFutureObj<'a, T> for Box<F>
Nov 18 13:46:29.370 INFO [stderr]     |                                                      ^^^ not found in this scope
Nov 18 13:46:29.371 INFO [stderr] 
Nov 18 13:46:29.371 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.371 INFO [stderr]    --> src/future/future_obj.rs:214:58
Nov 18 13:46:29.371 INFO [stderr]     |
Nov 18 13:46:29.371 INFO [stderr] 214 |     unsafe impl<'a, T, F> UnsafeFutureObj<'a, T> for Pin<Box<F>>
Nov 18 13:46:29.372 INFO [stderr]     |                                                          ^^^ not found in this scope
Nov 18 13:46:29.372 INFO [stderr] 
Nov 18 13:46:29.372 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.372 INFO [stderr]    --> src/future/future_obj.rs:233:48
Nov 18 13:46:29.372 INFO [stderr]     |
Nov 18 13:46:29.373 INFO [stderr] 233 |             drop(Box::from_raw(ptr as *mut Pin<Box<T>>));
Nov 18 13:46:29.373 INFO [stderr]     |                                                ^^^ not found in this scope
Nov 18 13:46:29.373 INFO [stderr] 
Nov 18 13:46:29.373 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.373 INFO [stderr]    --> src/future/future_obj.rs:237:59
Nov 18 13:46:29.373 INFO [stderr]     |
Nov 18 13:46:29.374 INFO [stderr] 237 |     impl<'a, F: Future<Output = ()> + Send + 'a> From<Pin<Box<F>>> for FutureObj<'a, ()> {
Nov 18 13:46:29.374 INFO [stderr]     |                                                           ^^^ not found in this scope
Nov 18 13:46:29.374 INFO [stderr] 
Nov 18 13:46:29.374 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.374 INFO [stderr]    --> src/future/future_obj.rs:238:28
Nov 18 13:46:29.375 INFO [stderr]     |
Nov 18 13:46:29.375 INFO [stderr] 238 |         fn from(boxed: Pin<Box<F>>) -> Self {
Nov 18 13:46:29.375 INFO [stderr]     |                            ^^^ not found in this scope
Nov 18 13:46:29.375 INFO [stderr] 
Nov 18 13:46:29.375 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.376 INFO [stderr]    --> src/future/future_obj.rs:243:55
Nov 18 13:46:29.376 INFO [stderr]     |
Nov 18 13:46:29.376 INFO [stderr] 243 |     impl<'a, F: Future<Output = ()> + Send + 'a> From<Box<F>> for FutureObj<'a, ()> {
Nov 18 13:46:29.376 INFO [stderr]     |                                                       ^^^ not found in this scope
Nov 18 13:46:29.376 INFO [stderr] 
Nov 18 13:46:29.377 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.377 INFO [stderr]    --> src/future/future_obj.rs:244:24
Nov 18 13:46:29.377 INFO [stderr]     |
Nov 18 13:46:29.377 INFO [stderr] 244 |         fn from(boxed: Box<F>) -> Self {
Nov 18 13:46:29.377 INFO [stderr]     |                        ^^^ not found in this scope
Nov 18 13:46:29.378 INFO [stderr] 
Nov 18 13:46:29.378 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.378 INFO [stderr]    --> src/future/future_obj.rs:249:52
Nov 18 13:46:29.378 INFO [stderr]     |
Nov 18 13:46:29.379 INFO [stderr] 249 |     impl<'a, F: Future<Output = ()> + 'a> From<Pin<Box<F>>> for LocalFutureObj<'a, ()> {
Nov 18 13:46:29.379 INFO [stderr]     |                                                    ^^^ not found in this scope
Nov 18 13:46:29.379 INFO [stderr] 
Nov 18 13:46:29.379 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.380 INFO [stderr]    --> src/future/future_obj.rs:250:28
Nov 18 13:46:29.380 INFO [stderr]     |
Nov 18 13:46:29.380 INFO [stderr] 250 |         fn from(boxed: Pin<Box<F>>) -> Self {
Nov 18 13:46:29.380 INFO [stderr]     |                            ^^^ not found in this scope
Nov 18 13:46:29.380 INFO [stderr] 
Nov 18 13:46:29.381 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.381 INFO [stderr]    --> src/future/future_obj.rs:255:48
Nov 18 13:46:29.381 INFO [stderr]     |
Nov 18 13:46:29.381 INFO [stderr] 255 |     impl<'a, F: Future<Output = ()> + 'a> From<Box<F>> for LocalFutureObj<'a, ()> {
Nov 18 13:46:29.381 INFO [stderr]     |                                                ^^^ not found in this scope
Nov 18 13:46:29.382 INFO [stderr] 
Nov 18 13:46:29.382 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.382 INFO [stderr]    --> src/future/future_obj.rs:256:24
Nov 18 13:46:29.382 INFO [stderr]     |
Nov 18 13:46:29.391 INFO [stderr] 256 |         fn from(boxed: Box<F>) -> Self {
Nov 18 13:46:29.391 INFO [stderr]     |                        ^^^ not found in this scope
Nov 18 13:46:29.391 INFO [stderr] 
Nov 18 13:46:29.391 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.391 INFO [stderr]    --> src/stream/stream_obj.rs:198:54
Nov 18 13:46:29.392 INFO [stderr]     |
Nov 18 13:46:29.392 INFO [stderr] 198 |     unsafe impl<'a, T, F> UnsafeStreamObj<'a, T> for Box<F>
Nov 18 13:46:29.392 INFO [stderr]     |                                                      ^^^ not found in this scope
Nov 18 13:46:29.392 INFO [stderr] 
Nov 18 13:46:29.392 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.392 INFO [stderr]    --> src/stream/stream_obj.rs:216:58
Nov 18 13:46:29.393 INFO [stderr]     |
Nov 18 13:46:29.393 INFO [stderr] 216 |     unsafe impl<'a, T, F> UnsafeStreamObj<'a, T> for Pin<Box<F>>
Nov 18 13:46:29.393 INFO [stderr]     |                                                          ^^^ not found in this scope
Nov 18 13:46:29.393 INFO [stderr] 
Nov 18 13:46:29.393 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.394 INFO [stderr]    --> src/stream/stream_obj.rs:234:57
Nov 18 13:46:29.394 INFO [stderr]     |
Nov 18 13:46:29.394 INFO [stderr] 234 |     impl<'a, F: Stream<Item = ()> + Send + 'a> From<Pin<Box<F>>> for StreamObj<'a, ()> {
Nov 18 13:46:29.394 INFO [stderr]     |                                                         ^^^ not found in this scope
Nov 18 13:46:29.394 INFO [stderr] 
Nov 18 13:46:29.395 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.395 INFO [stderr]    --> src/stream/stream_obj.rs:235:28
Nov 18 13:46:29.395 INFO [stderr]     |
Nov 18 13:46:29.395 INFO [stderr] 235 |         fn from(boxed: Pin<Box<F>>) -> Self {
Nov 18 13:46:29.395 INFO [stderr]     |                            ^^^ not found in this scope
Nov 18 13:46:29.396 INFO [stderr] 
Nov 18 13:46:29.396 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.396 INFO [stderr]    --> src/stream/stream_obj.rs:240:53
Nov 18 13:46:29.396 INFO [stderr]     |
Nov 18 13:46:29.396 INFO [stderr] 240 |     impl<'a, F: Stream<Item = ()> + Send + 'a> From<Box<F>> for StreamObj<'a, ()> {
Nov 18 13:46:29.397 INFO [stderr]     |                                                     ^^^ not found in this scope
Nov 18 13:46:29.397 INFO [stderr] 
Nov 18 13:46:29.397 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.397 INFO [stderr]    --> src/stream/stream_obj.rs:241:24
Nov 18 13:46:29.397 INFO [stderr]     |
Nov 18 13:46:29.397 INFO [stderr] 241 |         fn from(boxed: Box<F>) -> Self {
Nov 18 13:46:29.398 INFO [stderr]     |                        ^^^ not found in this scope
Nov 18 13:46:29.398 INFO [stderr] 
Nov 18 13:46:29.398 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.398 INFO [stderr]    --> src/stream/stream_obj.rs:246:50
Nov 18 13:46:29.399 INFO [stderr]     |
Nov 18 13:46:29.399 INFO [stderr] 246 |     impl<'a, F: Stream<Item = ()> + 'a> From<Pin<Box<F>>> for LocalStreamObj<'a, ()> {
Nov 18 13:46:29.399 INFO [stderr]     |                                                  ^^^ not found in this scope
Nov 18 13:46:29.399 INFO [stderr] 
Nov 18 13:46:29.399 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.400 INFO [stderr]    --> src/stream/stream_obj.rs:247:28
Nov 18 13:46:29.400 INFO [stderr]     |
Nov 18 13:46:29.400 INFO [stderr] 247 |         fn from(boxed: Pin<Box<F>>) -> Self {
Nov 18 13:46:29.400 INFO [stderr]     |                            ^^^ not found in this scope
Nov 18 13:46:29.400 INFO [stderr] 
Nov 18 13:46:29.400 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.410 INFO [stderr]    --> src/stream/stream_obj.rs:252:46
Nov 18 13:46:29.411 INFO [stderr]     |
Nov 18 13:46:29.411 INFO [stderr] 252 |     impl<'a, F: Stream<Item = ()> + 'a> From<Box<F>> for LocalStreamObj<'a, ()> {
Nov 18 13:46:29.411 INFO [stderr]     |                                              ^^^ not found in this scope
Nov 18 13:46:29.411 INFO [stderr] 
Nov 18 13:46:29.412 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.412 INFO [stderr]    --> src/stream/stream_obj.rs:253:24
Nov 18 13:46:29.412 INFO [stderr]     |
Nov 18 13:46:29.412 INFO [stderr] 253 |         fn from(boxed: Box<F>) -> Self {
Nov 18 13:46:29.412 INFO [stderr]     |                        ^^^ not found in this scope
Nov 18 13:46:29.413 INFO [stderr] 
Nov 18 13:46:29.413 INFO [stderr] error[E0412]: cannot find type `Box` in this scope
Nov 18 13:46:29.413 INFO [stderr]    --> src/stream/mod.rs:138:49
Nov 18 13:46:29.413 INFO [stderr]     |
Nov 18 13:46:29.413 INFO [stderr] 138 |     impl<S: ?Sized + Stream + Unpin> Stream for Box<S> {
Nov 18 13:46:29.413 INFO [stderr]     |                                                 ^^^ not found in this scope
Nov 18 13:46:29.414 INFO [stderr] 
Nov 18 13:46:29.414 INFO [stderr] warning: unused import: `std::boxed::Box`
Nov 18 13:46:29.414 INFO [stderr]    --> src/future/future_obj.rs:194:9
Nov 18 13:46:29.414 INFO [stderr]     |
Nov 18 13:46:29.414 INFO [stderr] 194 |     use std::boxed::Box;
Nov 18 13:46:29.415 INFO [stderr]     |         ^^^^^^^^^^^^^^^
Nov 18 13:46:29.415 INFO [stderr]     |
Nov 18 13:46:29.415 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Nov 18 13:46:29.415 INFO [stderr] 
Nov 18 13:46:29.415 INFO [stderr] warning: unused import: `std::boxed::Box`
Nov 18 13:46:29.416 INFO [stderr]    --> src/stream/stream_obj.rs:196:9
Nov 18 13:46:29.416 INFO [stderr]     |
Nov 18 13:46:29.416 INFO [stderr] 196 |     use std::boxed::Box;
Nov 18 13:46:29.416 INFO [stderr]     |         ^^^^^^^^^^^^^^^
Nov 18 13:46:29.416 INFO [stderr] 
Nov 18 13:46:29.417 INFO [stderr] warning: unused import: `std::boxed::Box`
Nov 18 13:46:29.417 INFO [stderr]    --> src/stream/mod.rs:136:9
Nov 18 13:46:29.417 INFO [stderr]     |
Nov 18 13:46:29.417 INFO [stderr] 136 |     use std::boxed::Box;
Nov 18 13:46:29.417 INFO [stderr]     |         ^^^^^^^^^^^^^^^
Nov 18 13:46:29.418 INFO [stderr] 
Nov 18 13:46:29.418 INFO [stderr] error[E0207]: the type parameter `F` is not constrained by the impl trait, self type, or predicates
Nov 18 13:46:29.418 INFO [stderr]    --> src/future/future_obj.rs:196:24
Nov 18 13:46:29.418 INFO [stderr]     |
Nov 18 13:46:29.418 INFO [stderr] 196 |     unsafe impl<'a, T, F> UnsafeFutureObj<'a, T> for Box<F>
Nov 18 13:46:29.419 INFO [stderr]     |                        ^ unconstrained type parameter
Nov 18 13:46:29.419 INFO [stderr] 
Nov 18 13:46:29.419 INFO [stderr] error[E0207]: the type parameter `F` is not constrained by the impl trait, self type, or predicates
Nov 18 13:46:29.419 INFO [stderr]    --> src/future/future_obj.rs:214:24
Nov 18 13:46:29.419 INFO [stderr]     |
Nov 18 13:46:29.419 INFO [stderr] 214 |     unsafe impl<'a, T, F> UnsafeFutureObj<'a, T> for Pin<Box<F>>
Nov 18 13:46:29.420 INFO [stderr]     |                        ^ unconstrained type parameter
Nov 18 13:46:29.420 INFO [stderr] 
Nov 18 13:46:29.420 INFO [stderr] error[E0207]: the type parameter `F` is not constrained by the impl trait, self type, or predicates
Nov 18 13:46:29.420 INFO [stderr]    --> src/future/future_obj.rs:237:14
Nov 18 13:46:29.420 INFO [stderr]     |
Nov 18 13:46:29.421 INFO [stderr] 237 |     impl<'a, F: Future<Output = ()> + Send + 'a> From<Pin<Box<F>>> for FutureObj<'a, ()> {
Nov 18 13:46:29.421 INFO [stderr]     |              ^ unconstrained type parameter
Nov 18 13:46:29.421 INFO [stderr] 
Nov 18 13:46:29.421 INFO [stderr] error[E0207]: the type parameter `F` is not constrained by the impl trait, self type, or predicates
Nov 18 13:46:29.421 INFO [stderr]    --> src/future/future_obj.rs:243:14
Nov 18 13:46:29.422 INFO [stderr]     |
Nov 18 13:46:29.422 INFO [stderr] 243 |     impl<'a, F: Future<Output = ()> + Send + 'a> From<Box<F>> for FutureObj<'a, ()> {
Nov 18 13:46:29.422 INFO [stderr]     |              ^ unconstrained type parameter
Nov 18 13:46:29.422 INFO [stderr] 
Nov 18 13:46:29.423 INFO [stderr] error[E0207]: the type parameter `F` is not constrained by the impl trait, self type, or predicates
Nov 18 13:46:29.423 INFO [stderr]    --> src/future/future_obj.rs:249:14
Nov 18 13:46:29.423 INFO [stderr]     |
Nov 18 13:46:29.423 INFO [stderr] 249 |     impl<'a, F: Future<Output = ()> + 'a> From<Pin<Box<F>>> for LocalFutureObj<'a, ()> {
Nov 18 13:46:29.423 INFO [stderr]     |              ^ unconstrained type parameter
Nov 18 13:46:29.423 INFO [stderr] 
Nov 18 13:46:29.423 INFO [stderr] error[E0207]: the type parameter `F` is not constrained by the impl trait, self type, or predicates
Nov 18 13:46:29.423 INFO [stderr]    --> src/future/future_obj.rs:255:14
Nov 18 13:46:29.423 INFO [stderr]     |
Nov 18 13:46:29.423 INFO [stderr] 255 |     impl<'a, F: Future<Output = ()> + 'a> From<Box<F>> for LocalFutureObj<'a, ()> {
Nov 18 13:46:29.423 INFO [stderr]     |              ^ unconstrained type parameter
Nov 18 13:46:29.423 INFO [stderr] 
Nov 18 13:46:29.423 INFO [stderr] error[E0207]: the type parameter `F` is not constrained by the impl trait, self type, or predicates
Nov 18 13:46:29.423 INFO [stderr]    --> src/stream/stream_obj.rs:198:24
Nov 18 13:46:29.423 INFO [stderr]     |
Nov 18 13:46:29.423 INFO [stderr] 198 |     unsafe impl<'a, T, F> UnsafeStreamObj<'a, T> for Box<F>
Nov 18 13:46:29.423 INFO [stderr]     |                        ^ unconstrained type parameter
Nov 18 13:46:29.423 INFO [stderr] 
Nov 18 13:46:29.423 INFO [stderr] error[E0207]: the type parameter `F` is not constrained by the impl trait, self type, or predicates
Nov 18 13:46:29.423 INFO [stderr]    --> src/stream/stream_obj.rs:216:24
Nov 18 13:46:29.423 INFO [stderr]     |
Nov 18 13:46:29.423 INFO [stderr] 216 |     unsafe impl<'a, T, F> UnsafeStreamObj<'a, T> for Pin<Box<F>>
Nov 18 13:46:29.423 INFO [stderr]     |                        ^ unconstrained type parameter
Nov 18 13:46:29.423 INFO [stderr] 
Nov 18 13:46:29.423 INFO [stderr] error[E0207]: the type parameter `F` is not constrained by the impl trait, self type, or predicates
Nov 18 13:46:29.423 INFO [stderr]    --> src/stream/stream_obj.rs:234:14
Nov 18 13:46:29.423 INFO [stderr]     |
Nov 18 13:46:29.423 INFO [stderr] 234 |     impl<'a, F: Stream<Item = ()> + Send + 'a> From<Pin<Box<F>>> for StreamObj<'a, ()> {
Nov 18 13:46:29.423 INFO [stderr]     |              ^ unconstrained type parameter
Nov 18 13:46:29.423 INFO [stderr] 
Nov 18 13:46:29.423 INFO [stderr] error[E0207]: the type parameter `F` is not constrained by the impl trait, self type, or predicates
Nov 18 13:46:29.423 INFO [stderr]    --> src/stream/stream_obj.rs:240:14
Nov 18 13:46:29.423 INFO [stderr]     |
Nov 18 13:46:29.423 INFO [stderr] 240 |     impl<'a, F: Stream<Item = ()> + Send + 'a> From<Box<F>> for StreamObj<'a, ()> {
Nov 18 13:46:29.423 INFO [stderr]     |              ^ unconstrained type parameter
Nov 18 13:46:29.423 INFO [stderr] 
Nov 18 13:46:29.423 INFO [stderr] error[E0207]: the type parameter `F` is not constrained by the impl trait, self type, or predicates
Nov 18 13:46:29.423 INFO [stderr]    --> src/stream/stream_obj.rs:246:14
Nov 18 13:46:29.423 INFO [stderr]     |
Nov 18 13:46:29.423 INFO [stderr] 246 |     impl<'a, F: Stream<Item = ()> + 'a> From<Pin<Box<F>>> for LocalStreamObj<'a, ()> {
Nov 18 13:46:29.423 INFO [stderr]     |              ^ unconstrained type parameter
Nov 18 13:46:29.423 INFO [stderr] 
Nov 18 13:46:29.423 INFO [stderr] error[E0207]: the type parameter `F` is not constrained by the impl trait, self type, or predicates
Nov 18 13:46:29.423 INFO [stderr]    --> src/stream/stream_obj.rs:252:14
Nov 18 13:46:29.423 INFO [stderr]     |
Nov 18 13:46:29.423 INFO [stderr] 252 |     impl<'a, F: Stream<Item = ()> + 'a> From<Box<F>> for LocalStreamObj<'a, ()> {
Nov 18 13:46:29.423 INFO [stderr]     |              ^ unconstrained type parameter
Nov 18 13:46:29.423 INFO [stderr] 
Nov 18 13:46:29.423 INFO [stderr] error[E0207]: the type parameter `S` is not constrained by the impl trait, self type, or predicates
Nov 18 13:46:29.423 INFO [stderr]    --> src/stream/mod.rs:138:10
Nov 18 13:46:29.423 INFO [stderr]     |
Nov 18 13:46:29.423 INFO [stderr] 138 |     impl<S: ?Sized + Stream + Unpin> Stream for Box<S> {
Nov 18 13:46:29.423 INFO [stderr]     |          ^ unconstrained type parameter
Nov 18 13:46:29.423 INFO [stderr] 
Nov 18 13:46:29.423 INFO [stderr] error[E0207]: the type parameter `S` is not constrained by the impl trait, self type, or predicates
Nov 18 13:46:29.423 INFO [stderr]    --> src/stream/mod.rs:149:10
Nov 18 13:46:29.423 INFO [stderr]     |
Nov 18 13:46:29.423 INFO [stderr] 149 |     impl<S: Stream> Stream for ::std::panic::AssertUnwindSafe<S> {
Nov 18 13:46:29.423 INFO [stderr]     |          ^ unconstrained type parameter
Nov 18 13:46:29.423 INFO [stderr] 
Nov 18 13:46:29.423 INFO [stderr] error[E0207]: the type parameter `T` is not constrained by the impl trait, self type, or predicates
Nov 18 13:46:29.423 INFO [stderr]    --> src/stream/mod.rs:160:10
Nov 18 13:46:29.423 INFO [stderr]     |
Nov 18 13:46:29.423 INFO [stderr] 160 |     impl<T: Unpin> Stream for ::std::collections::VecDeque<T> {
Nov 18 13:46:29.423 INFO [stderr]     |          ^ unconstrained type parameter
Nov 18 13:46:29.423 INFO [stderr] 
Nov 18 13:46:29.423 INFO [stderr] error: aborting due to 49 previous errors
Nov 18 13:46:29.423 INFO [stderr] 
Nov 18 13:46:29.423 INFO [stderr] Some errors occurred: E0207, E0412, E0433.
Nov 18 13:46:29.423 INFO [stderr] For more information about an error, try `rustc --explain E0207`.
Nov 18 13:46:29.423 INFO [stderr] error: Could not compile `futures-core-preview`.
Nov 18 13:46:29.423 INFO [stderr] 
Nov 18 13:46:29.423 INFO [stderr] To learn more, run the command again with --verbose.
Nov 18 13:46:29.423 INFO [stderr] su: No module specific data is present
Nov 18 13:46:29.919 INFO running `"docker" "inspect" "3a9e77152fca70d6fd567055a31e3826790879791acbe1960b91bdd659bc66e5"`
Nov 18 13:46:30.225 INFO running `"docker" "rm" "-f" "3a9e77152fca70d6fd567055a31e3826790879791acbe1960b91bdd659bc66e5"`
Nov 18 13:46:30.500 INFO [stdout] 3a9e77152fca70d6fd567055a31e3826790879791acbe1960b91bdd659bc66e5