Sep 18 01:46:42.683 INFO checking derivative-1.0.0 against try#cfeeefe83c83bceb55d60d7e2be173db7597ed50 for pr-54033
Sep 18 01:46:42.683 INFO running: cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets
Sep 18 01:46:42.683 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-54033/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-1/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/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 +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 18 01:46:42.811 INFO blam! 296476418cb1fb079dde3bbe9df74e1be13a6226a6a2d865cf0c899a465b77d2
Sep 18 01:46:42.816 INFO running `"docker" "start" "-a" "296476418cb1fb079dde3bbe9df74e1be13a6226a6a2d865cf0c899a465b77d2"`
Sep 18 01:46:43.855 INFO kablam! usermod: no changes
Sep 18 01:46:43.943 INFO kablam!     Checking itertools v0.5.10
Sep 18 01:46:43.943 INFO kablam!     Checking syn v0.10.8
Sep 18 01:46:43.948 INFO kablam!    Compiling derivative v1.0.0 (/source)
Sep 18 01:46:58.131 INFO kablam! warning: unused comparison which must be used
Sep 18 01:46:58.131 INFO kablam!   --> tests/rustc-deriving-meta-multiple.rs:34:5
Sep 18 01:46:58.131 INFO kablam!    |
Sep 18 01:46:58.131 INFO kablam! 34 |     a == a;    // check for PartialEq impl w/o testing its correctness
Sep 18 01:46:58.131 INFO kablam!    |     ^^^^^^
Sep 18 01:46:58.154 INFO kablam!    |
Sep 18 01:46:58.155 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 18 01:46:58.155 INFO kablam! 
Sep 18 01:46:58.191 INFO kablam! warning: unused return value of `std::clone::Clone::clone` which must be used
Sep 18 01:46:58.191 INFO kablam!   --> tests/rustc-deriving-meta-multiple.rs:35:5
Sep 18 01:46:58.192 INFO kablam!    |
Sep 18 01:46:58.192 INFO kablam! 35 |     a.clone(); // check for Clone impl w/o testing its correctness
Sep 18 01:46:58.192 INFO kablam!    |     ^^^^^^^^^^
Sep 18 01:46:58.193 INFO kablam!    |
Sep 18 01:46:58.193 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Sep 18 01:46:58.193 INFO kablam! 
Sep 18 01:47:01.326 INFO kablam! warning: unused comparison which must be used
Sep 18 01:47:01.327 INFO kablam!   --> tests/rustc-deriving-meta.rs:31:5
Sep 18 01:47:01.327 INFO kablam!    |
Sep 18 01:47:01.327 INFO kablam! 31 |     a == a;    // check for PartialEq impl w/o testing its correctness
Sep 18 01:47:01.327 INFO kablam!    |     ^^^^^^
Sep 18 01:47:01.327 INFO kablam!    |
Sep 18 01:47:01.327 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 18 01:47:01.327 INFO kablam! 
Sep 18 01:47:01.372 INFO kablam! warning: unused return value of `std::clone::Clone::clone` which must be used
Sep 18 01:47:01.372 INFO kablam!   --> tests/rustc-deriving-meta.rs:32:5
Sep 18 01:47:01.373 INFO kablam!    |
Sep 18 01:47:01.373 INFO kablam! 32 |     a.clone(); // check for Clone impl w/o testing its correctness
Sep 18 01:47:01.373 INFO kablam!    |     ^^^^^^^^^^
Sep 18 01:47:01.378 INFO kablam!    |
Sep 18 01:47:01.379 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Sep 18 01:47:01.379 INFO kablam! 
Sep 18 01:47:06.350 INFO kablam! error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
Sep 18 01:47:06.350 INFO kablam!   --> tests/rustc-issue-25394.rs:18:24
Sep 18 01:47:06.350 INFO kablam!    |
Sep 18 01:47:06.350 INFO kablam! 18 | fn use_row(_: Row<u8>) {}
Sep 18 01:47:06.350 INFO kablam!    |                        ^ doesn't have a size known at compile-time
Sep 18 01:47:06.350 INFO kablam!    |
Sep 18 01:47:06.350 INFO kablam!    = help: within `Row<u8>`, the trait `std::marker::Sized` is not implemented for `[u8]`
Sep 18 01:47:06.350 INFO kablam!    = note: to learn more, visit <https://doc.rust-lang.org/book/second-edition/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
Sep 18 01:47:06.350 INFO kablam!    = note: required because it appears within the type `Row<u8>`
Sep 18 01:47:06.350 INFO kablam!    = note: all function arguments must have a statically known size
Sep 18 01:47:06.350 INFO kablam!    = help: unsized locals are gated as an unstable feature
Sep 18 01:47:06.350 INFO kablam! 
Sep 18 01:47:06.354 INFO kablam! error: aborting due to previous error
Sep 18 01:47:06.354 INFO kablam! 
Sep 18 01:47:06.355 INFO kablam! For more information about this error, try `rustc --explain E0277`.
Sep 18 01:47:06.361 INFO kablam! error: Could not compile `derivative`.
Sep 18 01:47:06.361 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 18 01:47:06.426 INFO kablam! error: build failed
Sep 18 01:47:06.427 INFO kablam! su: No module specific data is present
Sep 18 01:47:07.221 INFO running `"docker" "rm" "-f" "296476418cb1fb079dde3bbe9df74e1be13a6226a6a2d865cf0c899a465b77d2"`
Sep 18 01:47:07.280 INFO blam! 296476418cb1fb079dde3bbe9df74e1be13a6226a6a2d865cf0c899a465b77d2