Sep 02 16:39:49.314 INFO checking derivative-1.0.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 16:39:49.314 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 16:39:49.314 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-0/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 16:39:49.498 INFO blam! 11bd96510ed1e915883874aed9e7bd2931bbdcf6a6ce6be82b62698db89bc3df
Sep 02 16:39:49.499 INFO running `"docker" "start" "-a" "11bd96510ed1e915883874aed9e7bd2931bbdcf6a6ce6be82b62698db89bc3df"`
Sep 02 16:39:50.202 INFO kablam!     Checking syn v0.10.8
Sep 02 16:39:50.202 INFO kablam!    Compiling derivative v1.0.0 (file:///source)
Sep 02 16:40:13.407 INFO kablam! warning: unused comparison which must be used
Sep 02 16:40:13.407 INFO kablam!   --> tests/rustc-deriving-meta-multiple.rs:34:5
Sep 02 16:40:13.407 INFO kablam!    |
Sep 02 16:40:13.407 INFO kablam! 34 |     a == a;    // check for PartialEq impl w/o testing its correctness
Sep 02 16:40:13.407 INFO kablam!    |     ^^^^^^
Sep 02 16:40:13.408 INFO kablam!    |
Sep 02 16:40:13.408 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 02 16:40:13.409 INFO kablam! 
Sep 02 16:40:13.464 INFO kablam! warning: unused return value of `std::clone::Clone::clone` which must be used
Sep 02 16:40:13.464 INFO kablam!   --> tests/rustc-deriving-meta-multiple.rs:35:5
Sep 02 16:40:13.464 INFO kablam!    |
Sep 02 16:40:13.464 INFO kablam! 35 |     a.clone(); // check for Clone impl w/o testing its correctness
Sep 02 16:40:13.464 INFO kablam!    |     ^^^^^^^^^^
Sep 02 16:40:13.466 INFO kablam!    |
Sep 02 16:40:13.467 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Sep 02 16:40:13.467 INFO kablam! 
Sep 02 16:40:25.029 INFO kablam! error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
Sep 02 16:40:25.029 INFO kablam!   --> tests/rustc-issue-25394.rs:18:24
Sep 02 16:40:25.029 INFO kablam!    |
Sep 02 16:40:25.029 INFO kablam! 18 | fn use_row(_: Row<u8>) {}
Sep 02 16:40:25.029 INFO kablam!    |                        ^ doesn't have a size known at compile-time
Sep 02 16:40:25.029 INFO kablam!    |
Sep 02 16:40:25.029 INFO kablam!    = help: within `Row<u8>`, the trait `std::marker::Sized` is not implemented for `[u8]`
Sep 02 16:40:25.029 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 02 16:40:25.029 INFO kablam!    = note: required because it appears within the type `Row<u8>`
Sep 02 16:40:25.029 INFO kablam!    = note: all function arguments must have a statically known size
Sep 02 16:40:25.030 INFO kablam!    = help: unsized locals are gated as an unstable feature
Sep 02 16:40:25.030 INFO kablam! 
Sep 02 16:40:25.041 INFO kablam! error: aborting due to previous error
Sep 02 16:40:25.054 INFO kablam! 
Sep 02 16:40:25.054 INFO kablam! For more information about this error, try `rustc --explain E0277`.
Sep 02 16:40:25.092 INFO kablam! error: Could not compile `derivative`.
Sep 02 16:40:25.093 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 02 16:40:26.920 INFO kablam! error: build failed
Sep 02 16:40:26.921 INFO kablam! su: No module specific data is present
Sep 02 16:40:27.322 INFO running `"docker" "rm" "-f" "11bd96510ed1e915883874aed9e7bd2931bbdcf6a6ce6be82b62698db89bc3df"`
Sep 02 16:40:27.442 INFO blam! 11bd96510ed1e915883874aed9e7bd2931bbdcf6a6ce6be82b62698db89bc3df