Sep 04 22:50:53.898 INFO checking derivative-1.0.0 against master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8 for pr-53913
Sep 04 22:50:53.898 INFO running: cargo +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets
Sep 04 22:50:53.898 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53913/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-1/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/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 +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 22:50:54.124 INFO blam! 552072f82e036bdf533676148231bb3db9574279b5e8196ce97274a4a7524ede
Sep 04 22:50:54.127 INFO running `"docker" "start" "-a" "552072f82e036bdf533676148231bb3db9574279b5e8196ce97274a4a7524ede"`
Sep 04 22:50:54.908 INFO kablam!     Checking syn v0.10.8
Sep 04 22:50:54.908 INFO kablam!    Compiling derivative v1.0.0 (file:///source)
Sep 04 22:51:15.333 INFO kablam! error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
Sep 04 22:51:15.333 INFO kablam!   --> tests/rustc-issue-25394.rs:18:24
Sep 04 22:51:15.333 INFO kablam!    |
Sep 04 22:51:15.333 INFO kablam! 18 | fn use_row(_: Row<u8>) {}
Sep 04 22:51:15.333 INFO kablam!    |                        ^ doesn't have a size known at compile-time
Sep 04 22:51:15.334 INFO kablam!    |
Sep 04 22:51:15.334 INFO kablam!    = help: within `Row<u8>`, the trait `std::marker::Sized` is not implemented for `[u8]`
Sep 04 22:51:15.334 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 04 22:51:15.335 INFO kablam!    = note: required because it appears within the type `Row<u8>`
Sep 04 22:51:15.335 INFO kablam!    = note: all function arguments must have a statically known size
Sep 04 22:51:15.335 INFO kablam!    = help: unsized locals are gated as an unstable feature
Sep 04 22:51:15.340 INFO kablam! 
Sep 04 22:51:15.344 INFO kablam! error: aborting due to previous error
Sep 04 22:51:15.360 INFO kablam! 
Sep 04 22:51:15.361 INFO kablam! For more information about this error, try `rustc --explain E0277`.
Sep 04 22:51:15.390 INFO kablam! error: Could not compile `derivative`.
Sep 04 22:51:15.391 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 04 22:51:18.127 INFO kablam! error: build failed
Sep 04 22:51:18.128 INFO kablam! su: No module specific data is present
Sep 04 22:51:18.712 INFO running `"docker" "rm" "-f" "552072f82e036bdf533676148231bb3db9574279b5e8196ce97274a4a7524ede"`
Sep 04 22:51:18.871 INFO blam! 552072f82e036bdf533676148231bb3db9574279b5e8196ce97274a4a7524ede