Sep 10 20:24:32.303 INFO checking derivative-1.0.0 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 20:24:32.303 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 20:24:32.303 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-0/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 20:24:32.501 INFO blam! 7f9d92284fb7090de0d1fe6968a80540d274a6068ac309828ff2225c0d3dd3c6
Sep 10 20:24:32.503 INFO running `"docker" "start" "-a" "7f9d92284fb7090de0d1fe6968a80540d274a6068ac309828ff2225c0d3dd3c6"`
Sep 10 20:24:33.512 INFO kablam! usermod: no changes
Sep 10 20:24:33.595 INFO kablam!     Checking syn v0.10.8
Sep 10 20:24:33.595 INFO kablam!     Checking itertools v0.5.10
Sep 10 20:24:33.595 INFO kablam!    Compiling derivative v1.0.0 (file:///source)
Sep 10 20:24:43.666 INFO kablam! error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
Sep 10 20:24:43.666 INFO kablam!   --> tests/rustc-issue-25394.rs:18:24
Sep 10 20:24:43.666 INFO kablam!    |
Sep 10 20:24:43.666 INFO kablam! 18 | fn use_row(_: Row<u8>) {}
Sep 10 20:24:43.666 INFO kablam!    |                        ^ doesn't have a size known at compile-time
Sep 10 20:24:43.666 INFO kablam!    |
Sep 10 20:24:43.666 INFO kablam!    = help: within `Row<u8>`, the trait `std::marker::Sized` is not implemented for `[u8]`
Sep 10 20:24:43.666 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 10 20:24:43.666 INFO kablam!    = note: required because it appears within the type `Row<u8>`
Sep 10 20:24:43.666 INFO kablam!    = note: all function arguments must have a statically known size
Sep 10 20:24:43.666 INFO kablam!    = help: unsized locals are gated as an unstable feature
Sep 10 20:24:43.666 INFO kablam! 
Sep 10 20:24:43.666 INFO kablam! error: aborting due to previous error
Sep 10 20:24:43.685 INFO kablam! 
Sep 10 20:24:43.685 INFO kablam! For more information about this error, try `rustc --explain E0277`.
Sep 10 20:24:43.714 INFO kablam! error: Could not compile `derivative`.
Sep 10 20:24:43.714 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 10 20:24:45.248 INFO kablam! error: build failed
Sep 10 20:24:45.250 INFO kablam! su: No module specific data is present
Sep 10 20:24:46.179 INFO running `"docker" "rm" "-f" "7f9d92284fb7090de0d1fe6968a80540d274a6068ac309828ff2225c0d3dd3c6"`
Sep 10 20:24:46.308 INFO blam! 7f9d92284fb7090de0d1fe6968a80540d274a6068ac309828ff2225c0d3dd3c6