Sep 01 20:16:18.887 INFO checking futures-preview-0.3.0-alpha.3 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 20:16:18.887 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 20:16:18.887 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-3/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 20:16:19.128 INFO blam! e7ad71f6ecdca22597335b1fbd56d91745f8dd4a005e11a2ff6fa878b4e9adb6
Sep 01 20:16:19.133 INFO running `"docker" "start" "-a" "e7ad71f6ecdca22597335b1fbd56d91745f8dd4a005e11a2ff6fa878b4e9adb6"`
Sep 01 20:16:20.086 INFO kablam!     Checking futures-core-preview v0.3.0-alpha.3
Sep 01 20:16:20.719 INFO kablam! error[E0432]: unresolved import `core::mem::PinMut`
Sep 01 20:16:20.719 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.3/src/future.rs:4:5
Sep 01 20:16:20.719 INFO kablam!   |
Sep 01 20:16:20.719 INFO kablam! 4 | use core::mem::PinMut;
Sep 01 20:16:20.719 INFO kablam!   |     ^^^^^^^^^^^^^^^^^ no `PinMut` in `mem`
Sep 01 20:16:20.719 INFO kablam! 
Sep 01 20:16:20.719 INFO kablam! error[E0432]: unresolved import `core::mem::PinMut`
Sep 01 20:16:20.719 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.3/src/stream.rs:5:5
Sep 01 20:16:20.719 INFO kablam!   |
Sep 01 20:16:20.719 INFO kablam! 5 | use core::mem::PinMut;
Sep 01 20:16:20.719 INFO kablam!   |     ^^^^^^^^^^^^^^^^^ no `PinMut` in `mem`
Sep 01 20:16:20.720 INFO kablam! 
Sep 01 20:16:20.720 INFO kablam! error[E0603]: struct `PinBox` is private
Sep 01 20:16:20.720 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.3/src/stream.rs:128:27
Sep 01 20:16:20.720 INFO kablam!     |
Sep 01 20:16:20.720 INFO kablam! 128 |     use std::boxed::{Box, PinBox};
Sep 01 20:16:20.720 INFO kablam!     |                           ^^^^^^
Sep 01 20:16:20.720 INFO kablam! 
Sep 01 20:16:20.728 INFO kablam! error[E0207]: the type parameter `S` is not constrained by the impl trait, self type, or predicates
Sep 01 20:16:20.728 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.3/src/stream.rs:68:10
Sep 01 20:16:20.728 INFO kablam!    |
Sep 01 20:16:20.728 INFO kablam! 68 | impl<'a, S: ?Sized + Stream> Stream for PinMut<'a, S> {
Sep 01 20:16:20.728 INFO kablam!    |          ^ unconstrained type parameter
Sep 01 20:16:20.728 INFO kablam! 
Sep 01 20:16:20.728 INFO kablam! error[E0207]: the type parameter `S` is not constrained by the impl trait, self type, or predicates
Sep 01 20:16:20.728 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.3/src/stream.rs:141:10
Sep 01 20:16:20.728 INFO kablam!     |
Sep 01 20:16:20.728 INFO kablam! 141 |     impl<S: ?Sized + Stream> Stream for PinBox<S> {
Sep 01 20:16:20.728 INFO kablam!     |          ^ unconstrained type parameter
Sep 01 20:16:20.728 INFO kablam! 
Sep 01 20:16:20.728 INFO kablam! error: aborting due to 5 previous errors
Sep 01 20:16:20.728 INFO kablam! 
Sep 01 20:16:20.728 INFO kablam! Some errors occurred: E0207, E0432, E0603.
Sep 01 20:16:20.728 INFO kablam! For more information about an error, try `rustc --explain E0207`.
Sep 01 20:16:20.742 INFO kablam! error: Could not compile `futures-core-preview`.
Sep 01 20:16:20.742 INFO kablam! 
Sep 01 20:16:20.742 INFO kablam! To learn more, run the command again with --verbose.
Sep 01 20:16:20.743 INFO kablam! su: No module specific data is present
Sep 01 20:16:21.294 INFO running `"docker" "rm" "-f" "e7ad71f6ecdca22597335b1fbd56d91745f8dd4a005e11a2ff6fa878b4e9adb6"`
Sep 01 20:16:21.509 INFO blam! e7ad71f6ecdca22597335b1fbd56d91745f8dd4a005e11a2ff6fa878b4e9adb6