Sep 21 02:17:49.510 INFO checking stream-combinators-0.1.0 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 02:17:49.510 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 02:17:49.510 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-5/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/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=1000" "-e" "CMD=cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 02:17:49.683 INFO blam! e10196740e970d666e2b42558ee8943b43f2c053173cd779297ca141cf4129ce
Sep 21 02:17:49.684 INFO running `"docker" "start" "-a" "e10196740e970d666e2b42558ee8943b43f2c053173cd779297ca141cf4129ce"`
Sep 21 02:17:50.486 INFO kablam! usermod: no changes
Sep 21 02:17:50.642 INFO kablam!     Checking stream-combinators v0.1.0 (/source)
Sep 21 02:17:50.642 INFO kablam!     Checking tokio-stdin v0.1.1
Sep 21 02:17:50.884 INFO kablam! warning: the trait bound `S: futures::Stream` is not satisfied
Sep 21 02:17:50.884 INFO kablam!   --> src/stream_sequence.rs:28:24
Sep 21 02:17:50.884 INFO kablam!    |
Sep 21 02:17:50.884 INFO kablam! 28 | type OutputStream<S> = Chain<Once<<S as Stream>::Item, <S as Stream>::Error>, S>;
Sep 21 02:17:50.884 INFO kablam!    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `futures::Stream` is not implemented for `S`
Sep 21 02:17:50.884 INFO kablam!    |
Sep 21 02:17:50.884 INFO kablam!    = note: #[warn(type_alias_missing_bounds)] on by default
Sep 21 02:17:50.884 INFO kablam!    = help: consider adding a `where S: futures::Stream` bound
Sep 21 02:17:50.884 INFO kablam!    = help: missing bounds in type aliases were previously allowed
Sep 21 02:17:50.884 INFO kablam!    = help: this is a hard error in Rust 2018
Sep 21 02:17:50.884 INFO kablam! 
Sep 21 02:17:51.080 INFO kablam! warning: unnecessary parentheses around function argument
Sep 21 02:17:51.080 INFO kablam!  --> examples/into_pairs.rs:9:41
Sep 21 02:17:51.080 INFO kablam!   |
Sep 21 02:17:51.080 INFO kablam! 9 |     let number_stream = iter_ok::<_,()>((0..6));
Sep 21 02:17:51.080 INFO kablam!   |                                         ^^^^^^ help: remove these parentheses
Sep 21 02:17:51.081 INFO kablam!   |
Sep 21 02:17:51.081 INFO kablam!   = note: #[warn(unused_parens)] on by default
Sep 21 02:17:51.081 INFO kablam! 
Sep 21 02:17:51.083 INFO kablam! warning: the trait bound `S: futures::Stream` is not satisfied
Sep 21 02:17:51.083 INFO kablam!   --> src/stream_sequence.rs:28:24
Sep 21 02:17:51.083 INFO kablam!    |
Sep 21 02:17:51.083 INFO kablam! 28 | type OutputStream<S> = Chain<Once<<S as Stream>::Item, <S as Stream>::Error>, S>;
Sep 21 02:17:51.083 INFO kablam!    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `futures::Stream` is not implemented for `S`
Sep 21 02:17:51.083 INFO kablam!    |
Sep 21 02:17:51.083 INFO kablam!    = note: #[warn(type_alias_missing_bounds)] on by default
Sep 21 02:17:51.083 INFO kablam!    = help: consider adding a `where S: futures::Stream` bound
Sep 21 02:17:51.083 INFO kablam!    = help: missing bounds in type aliases were previously allowed
Sep 21 02:17:51.083 INFO kablam!    = help: this is a hard error in Rust 2018
Sep 21 02:17:51.083 INFO kablam! 
Sep 21 02:17:51.549 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
Sep 21 02:17:51.554 INFO kablam! su: No module specific data is present
Sep 21 02:17:52.107 INFO running `"docker" "rm" "-f" "e10196740e970d666e2b42558ee8943b43f2c053173cd779297ca141cf4129ce"`
Sep 21 02:17:52.175 INFO blam! e10196740e970d666e2b42558ee8943b43f2c053173cd779297ca141cf4129ce