Sep 17 18:07:58.676 INFO checking rustc-hex-2.0.1 against try#cfeeefe83c83bceb55d60d7e2be173db7597ed50 for pr-54033
Sep 17 18:07:58.676 INFO running: cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets
Sep 17 18:07:58.676 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-54033/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-5/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 17 18:07:58.967 INFO blam! ca70beca0527df3eed87e7a00cfc72bf0dd7978751107b5fc3333584eab9c412
Sep 17 18:07:58.969 INFO running `"docker" "start" "-a" "ca70beca0527df3eed87e7a00cfc72bf0dd7978751107b5fc3333584eab9c412"`
Sep 17 18:07:59.983 INFO kablam! usermod: no changes
Sep 17 18:08:00.006 INFO kablam!     Checking rustc-hex v2.0.1 (/source)
Sep 17 18:08:00.539 INFO kablam! error[E0283]: type annotations required: cannot resolve `_: std::iter::FromIterator<char>`
Sep 17 18:08:00.539 INFO kablam!   --> benches/hex.rs:14:22
Sep 17 18:08:00.539 INFO kablam!    |
Sep 17 18:08:00.539 INFO kablam! 14 |         s.as_bytes().to_hex();
Sep 17 18:08:00.539 INFO kablam!    |                      ^^^^^^
Sep 17 18:08:00.539 INFO kablam! 
Sep 17 18:08:00.539 INFO kablam! error[E0282]: type annotations needed
Sep 17 18:08:00.539 INFO kablam!   --> benches/hex.rs:25:9
Sep 17 18:08:00.539 INFO kablam!    |
Sep 17 18:08:00.539 INFO kablam! 23 |     let sb = s.as_bytes().to_hex();
Sep 17 18:08:00.539 INFO kablam!    |         -- consider giving `sb` a type
Sep 17 18:08:00.539 INFO kablam! 24 |     b.iter(|| {
Sep 17 18:08:00.539 INFO kablam! 25 |         sb.from_hex().unwrap();
Sep 17 18:08:00.539 INFO kablam!    |         ^^ cannot infer type
Sep 17 18:08:00.539 INFO kablam!    |
Sep 17 18:08:00.539 INFO kablam!    = note: type must be known at this point
Sep 17 18:08:00.539 INFO kablam! 
Sep 17 18:08:00.539 INFO kablam! error: aborting due to 2 previous errors
Sep 17 18:08:00.539 INFO kablam! 
Sep 17 18:08:00.539 INFO kablam! Some errors occurred: E0282, E0283.
Sep 17 18:08:00.539 INFO kablam! For more information about an error, try `rustc --explain E0282`.
Sep 17 18:08:00.544 INFO kablam! error: Could not compile `rustc-hex`.
Sep 17 18:08:00.544 INFO kablam! 
Sep 17 18:08:00.545 INFO kablam! To learn more, run the command again with --verbose.
Sep 17 18:08:00.546 INFO kablam! su: No module specific data is present
Sep 17 18:08:01.283 INFO running `"docker" "rm" "-f" "ca70beca0527df3eed87e7a00cfc72bf0dd7978751107b5fc3333584eab9c412"`
Sep 17 18:08:01.485 INFO blam! ca70beca0527df3eed87e7a00cfc72bf0dd7978751107b5fc3333584eab9c412