[INFO] updating cached repository https://github.com/iovxw/babel [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] d01d16153443656cfc54338c07c738aca881a401 [INFO] testing iovxw/babel against 1.38.0 for beta-1.39-1 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiovxw%2Fbabel" "work/builds/worker-1/source"` [INFO] [stderr] Cloning into 'work/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/iovxw/babel on toolchain 1.38.0 [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/iovxw/babel [INFO] finished tweaking git repo https://github.com/iovxw/babel [INFO] tweaked toml for git repo https://github.com/iovxw/babel written to work/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/iovxw/babel already has a lockfile, it will not be regenerated [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"` [INFO] [stdout] 3957d76bff8c4f1a2e25c1bcb29f8567b9dd2865ca4a8c247dbcc6bf9f49767c [INFO] running `"docker" "start" "-a" "3957d76bff8c4f1a2e25c1bcb29f8567b9dd2865ca4a8c247dbcc6bf9f49767c"` [INFO] [stderr] Compiling nodrop v0.1.12 [INFO] [stderr] Compiling pin-utils v0.1.0-alpha.2 [INFO] [stderr] Compiling ego-tree v0.5.0 [INFO] [stderr] Compiling socket2 v0.3.8 [INFO] [stderr] Compiling actix-web v0.7.7 [INFO] [stderr] Compiling tokio-channel v0.1.0 [INFO] [stderr] Compiling futures-core-preview v0.3.0-alpha.6 [INFO] [stderr] Compiling openssl-sys v0.9.35 [INFO] [stderr] Compiling uuid v0.6.5 [INFO] [stderr] Compiling tokio-timer v0.2.6 [INFO] [stderr] Compiling tokio-current-thread v0.1.1 [INFO] [stderr] Compiling syn v0.13.11 [INFO] [stderr] Compiling miniz-sys v0.1.10 [INFO] [stderr] Compiling tokio-codec v0.1.0 [INFO] [stderr] Compiling ring v0.13.2 [INFO] [stderr] Compiling tendril v0.4.0 [INFO] [stderr] Compiling h2 v0.1.12 [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pin-utils-0.1.0-alpha.2/src/lib.rs:3:1 [INFO] [stderr] | [INFO] [stderr] 3 | #![feature(pin)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `pin-utils`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-channel-0.1.0/src/lib.rs:3:46 [INFO] [stderr] | [INFO] [stderr] 3 | #![cfg_attr(feature = "async-await-preview", feature( [INFO] [stderr] | ______________________________________________^ [INFO] [stderr] 4 | | pin, [INFO] [stderr] 5 | | ))] [INFO] [stderr] | |_________^ [INFO] [stderr] [INFO] [stderr] error[E0432]: unresolved import `core::pin::PinMut` [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/future.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use core::pin::PinMut; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ no `PinMut` in `pin` [INFO] [stderr] [INFO] [stderr] error[E0432]: unresolved imports `core::future::FutureObj`, `core::future::LocalFutureObj`, `core::future::UnsafeFutureObj` [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/future.rs:6:32 [INFO] [stderr] | [INFO] [stderr] 6 | pub use core::future::{Future, FutureObj, LocalFutureObj, UnsafeFutureObj}; [INFO] [stderr] | ^^^^^^^^^ ^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^ no `UnsafeFutureObj` in `future` [INFO] [stderr] | | | [INFO] [stderr] | | no `LocalFutureObj` in `future` [INFO] [stderr] | no `FutureObj` in `future` [INFO] [stderr] | help: a similar name exists in the module: `Future` [INFO] [stderr] [INFO] [stderr] error[E0432]: unresolved import `core::pin::PinMut` [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/mod.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use core::pin::PinMut; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ no `PinMut` in `pin` [INFO] [stderr] [INFO] [stderr] error[E0432]: unresolved import `core::pin::PinMut` [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use core::pin::PinMut; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ no `PinMut` in `pin` [INFO] [stderr] [INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `std` [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:196:9 [INFO] [stderr] | [INFO] [stderr] 196 | use std::boxed::Box; [INFO] [stderr] | ^^^ use of undeclared type or module `std` [INFO] [stderr] [INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `std` [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:197:9 [INFO] [stderr] | [INFO] [stderr] 197 | use std::pin::PinBox; [INFO] [stderr] | ^^^ use of undeclared type or module `std` [INFO] [stderr] [INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `std` [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/mod.rs:131:9 [INFO] [stderr] | [INFO] [stderr] 131 | use std::boxed::Box; [INFO] [stderr] | ^^^ use of undeclared type or module `std` [INFO] [stderr] [INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `std` [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/mod.rs:132:9 [INFO] [stderr] | [INFO] [stderr] 132 | use std::pin::PinBox; [INFO] [stderr] | ^^^ use of undeclared type or module `std` [INFO] [stderr] [INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `std` [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/task.rs:10:13 [INFO] [stderr] | [INFO] [stderr] 10 | pub use std::task::{Wake, local_waker, local_waker_from_nonlocal}; [INFO] [stderr] | ^^^ use of undeclared type or module `std` [INFO] [stderr] [INFO] [stderr] error[E0432]: unresolved imports `core::task::Spawn`, `core::task::LocalWaker`, `core::task::UnsafeWake`, `core::task::SpawnErrorKind`, `core::task::SpawnObjError`, `core::task::SpawnLocalObjError` [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/task.rs:4:20 [INFO] [stderr] | [INFO] [stderr] 4 | Context, Poll, Spawn, [INFO] [stderr] | ^^^^^ no `Spawn` in `task` [INFO] [stderr] 5 | Waker, LocalWaker, UnsafeWake, [INFO] [stderr] | ^^^^^^^^^^ ^^^^^^^^^^ no `UnsafeWake` in `task` [INFO] [stderr] | | [INFO] [stderr] | no `LocalWaker` in `task` [INFO] [stderr] 6 | SpawnErrorKind, SpawnObjError, SpawnLocalObjError, [INFO] [stderr] | ^^^^^^^^^^^^^^ ^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ no `SpawnLocalObjError` in `task` [INFO] [stderr] | | | [INFO] [stderr] | | no `SpawnObjError` in `task` [INFO] [stderr] | no `SpawnErrorKind` in `task` [INFO] [stderr] [INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Box` [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:203:13 [INFO] [stderr] | [INFO] [stderr] 203 | Box::into_raw(self) as *mut () [INFO] [stderr] | ^^^ use of undeclared type or module `Box` [INFO] [stderr] [INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Box` [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:213:18 [INFO] [stderr] | [INFO] [stderr] 213 | drop(Box::from_raw(ptr as *mut F)) [INFO] [stderr] | ^^^ use of undeclared type or module `Box` [INFO] [stderr] [INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `PinBox` [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:221:13 [INFO] [stderr] | [INFO] [stderr] 221 | PinBox::into_raw(self) as *mut () [INFO] [stderr] | ^^^^^^ use of undeclared type or module `PinBox` [INFO] [stderr] [INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `PinBox` [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:231:18 [INFO] [stderr] | [INFO] [stderr] 231 | drop(PinBox::from_raw(ptr as *mut F)) [INFO] [stderr] | ^^^^^^ use of undeclared type or module `PinBox` [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `tokio-channel`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error[E0433]: failed to resolve: could not find `std` in `{{root}}` [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/mod.rs:156:34 [INFO] [stderr] | [INFO] [stderr] 156 | impl Stream for ::std::panic::AssertUnwindSafe { [INFO] [stderr] | ^^^ could not find `std` in `{{root}}` [INFO] [stderr] [INFO] [stderr] error[E0433]: failed to resolve: could not find `std` in `{{root}}` [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/mod.rs:167:33 [INFO] [stderr] | [INFO] [stderr] 167 | impl Stream for ::std::collections::VecDeque { [INFO] [stderr] | ^^^ could not find `std` in `{{root}}` [INFO] [stderr] [INFO] [stderr] error[E0412]: cannot find type `Box` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:199:54 [INFO] [stderr] | [INFO] [stderr] 199 | unsafe impl<'a, T, F> UnsafeStreamObj<'a, T> for Box [INFO] [stderr] | ^^^ not found in this scope [INFO] [stderr] [INFO] [stderr] error[E0412]: cannot find type `PinBox` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:217:54 [INFO] [stderr] | [INFO] [stderr] 217 | unsafe impl<'a, T, F> UnsafeStreamObj<'a, T> for PinBox [INFO] [stderr] | ^^^^^^ not found in this scope [INFO] [stderr] [INFO] [stderr] error[E0412]: cannot find type `PinBox` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:235:53 [INFO] [stderr] | [INFO] [stderr] 235 | impl<'a, F: Stream + Send + 'a> From> for StreamObj<'a, ()> { [INFO] [stderr] | ^^^^^^ not found in this scope [INFO] [stderr] [INFO] [stderr] error[E0412]: cannot find type `PinBox` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:236:24 [INFO] [stderr] | [INFO] [stderr] 236 | fn from(boxed: PinBox) -> Self { [INFO] [stderr] | ^^^^^^ not found in this scope [INFO] [stderr] [INFO] [stderr] error[E0412]: cannot find type `Box` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:241:53 [INFO] [stderr] | [INFO] [stderr] 241 | impl<'a, F: Stream + Send + 'a> From> for StreamObj<'a, ()> { [INFO] [stderr] | ^^^ not found in this scope [INFO] [stderr] [INFO] [stderr] error[E0412]: cannot find type `Box` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:242:24 [INFO] [stderr] | [INFO] [stderr] 242 | fn from(boxed: Box) -> Self { [INFO] [stderr] | ^^^ not found in this scope [INFO] [stderr] [INFO] [stderr] error[E0412]: cannot find type `PinBox` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:247:46 [INFO] [stderr] | [INFO] [stderr] 247 | impl<'a, F: Stream + 'a> From> for LocalStreamObj<'a, ()> { [INFO] [stderr] | ^^^^^^ not found in this scope [INFO] [stderr] [INFO] [stderr] error[E0412]: cannot find type `PinBox` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:248:24 [INFO] [stderr] | [INFO] [stderr] 248 | fn from(boxed: PinBox) -> Self { [INFO] [stderr] | ^^^^^^ not found in this scope [INFO] [stderr] [INFO] [stderr] error[E0412]: cannot find type `Box` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:253:46 [INFO] [stderr] | [INFO] [stderr] 253 | impl<'a, F: Stream + 'a> From> for LocalStreamObj<'a, ()> { [INFO] [stderr] | ^^^ not found in this scope [INFO] [stderr] [INFO] [stderr] error[E0412]: cannot find type `Box` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:254:24 [INFO] [stderr] | [INFO] [stderr] 254 | fn from(boxed: Box) -> Self { [INFO] [stderr] | ^^^ not found in this scope [INFO] [stderr] [INFO] [stderr] error[E0412]: cannot find type `Box` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/mod.rs:134:49 [INFO] [stderr] | [INFO] [stderr] 134 | impl Stream for Box { [INFO] [stderr] | ^^^ not found in this scope [INFO] [stderr] [INFO] [stderr] error[E0412]: cannot find type `PinBox` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/mod.rs:145:41 [INFO] [stderr] | [INFO] [stderr] 145 | impl Stream for PinBox { [INFO] [stderr] | ^^^^^^ not found in this scope [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/lib.rs:3:1 [INFO] [stderr] | [INFO] [stderr] 3 | #![feature(pin, arbitrary_self_types, futures_api)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `S` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/mod.rs:71:10 [INFO] [stderr] | [INFO] [stderr] 71 | impl<'a, S: ?Sized + Stream> Stream for PinMut<'a, S> { [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `S` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/mod.rs:134:10 [INFO] [stderr] | [INFO] [stderr] 134 | impl Stream for Box { [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `S` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/mod.rs:145:10 [INFO] [stderr] | [INFO] [stderr] 145 | impl Stream for PinBox { [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `S` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/mod.rs:156:10 [INFO] [stderr] | [INFO] [stderr] 156 | impl Stream for ::std::panic::AssertUnwindSafe { [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `T` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/mod.rs:167:10 [INFO] [stderr] | [INFO] [stderr] 167 | impl Stream for ::std::collections::VecDeque { [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `F` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:177:20 [INFO] [stderr] | [INFO] [stderr] 177 | unsafe impl<'a, T, F> UnsafeStreamObj<'a, T> for PinMut<'a, F> [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `F` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:199:24 [INFO] [stderr] | [INFO] [stderr] 199 | unsafe impl<'a, T, F> UnsafeStreamObj<'a, T> for Box [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `F` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:217:24 [INFO] [stderr] | [INFO] [stderr] 217 | unsafe impl<'a, T, F> UnsafeStreamObj<'a, T> for PinBox [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `F` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:235:14 [INFO] [stderr] | [INFO] [stderr] 235 | impl<'a, F: Stream + Send + 'a> From> for StreamObj<'a, ()> { [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `F` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:241:14 [INFO] [stderr] | [INFO] [stderr] 241 | impl<'a, F: Stream + Send + 'a> From> for StreamObj<'a, ()> { [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `F` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:247:14 [INFO] [stderr] | [INFO] [stderr] 247 | impl<'a, F: Stream + 'a> From> for LocalStreamObj<'a, ()> { [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `F` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.6/src/stream/stream_obj.rs:253:14 [INFO] [stderr] | [INFO] [stderr] 253 | impl<'a, F: Stream + 'a> From> for LocalStreamObj<'a, ()> { [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error: aborting due to 41 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0207, E0412, E0432, E0433, E0554. [INFO] [stderr] For more information about an error, try `rustc --explain E0207`. [INFO] [stderr] error: Could not compile `futures-core-preview`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "3957d76bff8c4f1a2e25c1bcb29f8567b9dd2865ca4a8c247dbcc6bf9f49767c"` [INFO] running `"docker" "rm" "-f" "3957d76bff8c4f1a2e25c1bcb29f8567b9dd2865ca4a8c247dbcc6bf9f49767c"` [INFO] [stdout] 3957d76bff8c4f1a2e25c1bcb29f8567b9dd2865ca4a8c247dbcc6bf9f49767c