Sep 02 01:20:47.112 INFO checking rustc-hex-2.0.1 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 01:20:47.112 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 01:20:47.112 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-1/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 01:20:47.274 INFO blam! a655b529a888a56917befbb775182f5e7c51d8b6b0ad2cd284316b8777f58aeb
Sep 02 01:20:47.276 INFO running `"docker" "start" "-a" "a655b529a888a56917befbb775182f5e7c51d8b6b0ad2cd284316b8777f58aeb"`
Sep 02 01:20:47.975 INFO kablam!     Checking rustc-hex v2.0.1 (file:///source)
Sep 02 01:20:49.027 INFO kablam! error[E0283]: type annotations required: cannot resolve `_: std::iter::FromIterator<char>`
Sep 02 01:20:49.027 INFO kablam!   --> benches/hex.rs:14:22
Sep 02 01:20:49.027 INFO kablam!    |
Sep 02 01:20:49.027 INFO kablam! 14 |         s.as_bytes().to_hex();
Sep 02 01:20:49.027 INFO kablam!    |                      ^^^^^^
Sep 02 01:20:49.027 INFO kablam! 
Sep 02 01:20:49.028 INFO kablam! error[E0282]: type annotations needed
Sep 02 01:20:49.028 INFO kablam!   --> benches/hex.rs:25:9
Sep 02 01:20:49.028 INFO kablam!    |
Sep 02 01:20:49.028 INFO kablam! 23 |     let sb = s.as_bytes().to_hex();
Sep 02 01:20:49.028 INFO kablam!    |         -- consider giving `sb` a type
Sep 02 01:20:49.028 INFO kablam! 24 |     b.iter(|| {
Sep 02 01:20:49.028 INFO kablam! 25 |         sb.from_hex().unwrap();
Sep 02 01:20:49.028 INFO kablam!    |         ^^ cannot infer type
Sep 02 01:20:49.028 INFO kablam!    |
Sep 02 01:20:49.028 INFO kablam!    = note: type must be known at this point
Sep 02 01:20:49.028 INFO kablam! 
Sep 02 01:20:49.030 INFO kablam! error: aborting due to 2 previous errors
Sep 02 01:20:49.030 INFO kablam! 
Sep 02 01:20:49.030 INFO kablam! Some errors occurred: E0282, E0283.
Sep 02 01:20:49.030 INFO kablam! For more information about an error, try `rustc --explain E0282`.
Sep 02 01:20:49.038 INFO kablam! error: Could not compile `rustc-hex`.
Sep 02 01:20:49.039 INFO kablam! 
Sep 02 01:20:49.039 INFO kablam! To learn more, run the command again with --verbose.
Sep 02 01:20:49.040 INFO kablam! su: No module specific data is present
Sep 02 01:20:49.382 INFO running `"docker" "rm" "-f" "a655b529a888a56917befbb775182f5e7c51d8b6b0ad2cd284316b8777f58aeb"`
Sep 02 01:20:49.524 INFO blam! a655b529a888a56917befbb775182f5e7c51d8b6b0ad2cd284316b8777f58aeb