Sep 06 00:44:17.688 INFO checking rustc-hex-2.0.1 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 06 00:44:17.688 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 06 00:44:17.688 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-1/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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 +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 00:44:17.909 INFO blam! a1e0178cf9969417d47114a11591a933d7494388b19312067cf32944688bb8bb
Sep 06 00:44:17.911 INFO running `"docker" "start" "-a" "a1e0178cf9969417d47114a11591a933d7494388b19312067cf32944688bb8bb"`
Sep 06 00:44:18.770 INFO kablam! usermod: no changes
Sep 06 00:44:18.814 INFO kablam!     Checking rustc-hex v2.0.1 (file:///source)
Sep 06 00:44:19.982 INFO kablam! error[E0283]: type annotations required: cannot resolve `_: std::iter::FromIterator<char>`
Sep 06 00:44:19.982 INFO kablam!   --> benches/hex.rs:14:22
Sep 06 00:44:19.982 INFO kablam!    |
Sep 06 00:44:19.982 INFO kablam! 14 |         s.as_bytes().to_hex();
Sep 06 00:44:19.982 INFO kablam!    |                      ^^^^^^
Sep 06 00:44:19.982 INFO kablam! 
Sep 06 00:44:19.982 INFO kablam! error[E0282]: type annotations needed
Sep 06 00:44:19.982 INFO kablam!   --> benches/hex.rs:25:9
Sep 06 00:44:19.982 INFO kablam!    |
Sep 06 00:44:19.982 INFO kablam! 23 |     let sb = s.as_bytes().to_hex();
Sep 06 00:44:19.982 INFO kablam!    |         -- consider giving `sb` a type
Sep 06 00:44:19.982 INFO kablam! 24 |     b.iter(|| {
Sep 06 00:44:19.982 INFO kablam! 25 |         sb.from_hex().unwrap();
Sep 06 00:44:19.982 INFO kablam!    |         ^^ cannot infer type
Sep 06 00:44:19.982 INFO kablam!    |
Sep 06 00:44:19.982 INFO kablam!    = note: type must be known at this point
Sep 06 00:44:19.982 INFO kablam! 
Sep 06 00:44:19.982 INFO kablam! error: aborting due to 2 previous errors
Sep 06 00:44:19.982 INFO kablam! 
Sep 06 00:44:19.982 INFO kablam! Some errors occurred: E0282, E0283.
Sep 06 00:44:19.982 INFO kablam! For more information about an error, try `rustc --explain E0282`.
Sep 06 00:44:19.986 INFO kablam! error: Could not compile `rustc-hex`.
Sep 06 00:44:19.986 INFO kablam! 
Sep 06 00:44:19.986 INFO kablam! To learn more, run the command again with --verbose.
Sep 06 00:44:19.986 INFO kablam! su: No module specific data is present
Sep 06 00:44:20.957 INFO running `"docker" "rm" "-f" "a1e0178cf9969417d47114a11591a933d7494388b19312067cf32944688bb8bb"`
Sep 06 00:44:21.069 INFO blam! a1e0178cf9969417d47114a11591a933d7494388b19312067cf32944688bb8bb