Oct 13 09:14:32.275 INFO checking rustc-hex-2.0.1 against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 13 09:14:32.277 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-2/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-2/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 13 09:14:32.712 INFO blam! 6bc63c4200928620fd737f9a19aff58e152174be5987726d96588e8e4d86f0ae
Oct 13 09:14:32.721 INFO running `"docker" "start" "-a" "6bc63c4200928620fd737f9a19aff58e152174be5987726d96588e8e4d86f0ae"`
Oct 13 09:14:33.920 INFO kablam! usermod: no changes
Oct 13 09:14:34.000 INFO kablam!     Checking rustc-hex v2.0.1 (/source)
Oct 13 09:14:35.662 INFO kablam! error[E0283]: type annotations required: cannot resolve `_: std::iter::FromIterator<char>`
Oct 13 09:14:35.662 INFO kablam!   --> benches/hex.rs:14:22
Oct 13 09:14:35.662 INFO kablam!    |
Oct 13 09:14:35.662 INFO kablam! 14 |         s.as_bytes().to_hex();
Oct 13 09:14:35.662 INFO kablam!    |                      ^^^^^^
Oct 13 09:14:35.662 INFO kablam! 
Oct 13 09:14:35.663 INFO kablam! error[E0282]: type annotations needed
Oct 13 09:14:35.663 INFO kablam!   --> benches/hex.rs:25:9
Oct 13 09:14:35.663 INFO kablam!    |
Oct 13 09:14:35.663 INFO kablam! 23 |     let sb = s.as_bytes().to_hex();
Oct 13 09:14:35.663 INFO kablam!    |         -- consider giving `sb` a type
Oct 13 09:14:35.663 INFO kablam! 24 |     b.iter(|| {
Oct 13 09:14:35.663 INFO kablam! 25 |         sb.from_hex().unwrap();
Oct 13 09:14:35.663 INFO kablam!    |         ^^ cannot infer type
Oct 13 09:14:35.663 INFO kablam!    |
Oct 13 09:14:35.663 INFO kablam!    = note: type must be known at this point
Oct 13 09:14:35.663 INFO kablam! 
Oct 13 09:14:35.665 INFO kablam! error: aborting due to 2 previous errors
Oct 13 09:14:35.665 INFO kablam! 
Oct 13 09:14:35.665 INFO kablam! Some errors occurred: E0282, E0283.
Oct 13 09:14:35.665 INFO kablam! For more information about an error, try `rustc --explain E0282`.
Oct 13 09:14:35.673 INFO kablam! error: Could not compile `rustc-hex`.
Oct 13 09:14:35.673 INFO kablam! 
Oct 13 09:14:35.673 INFO kablam! To learn more, run the command again with --verbose.
Oct 13 09:14:35.675 INFO kablam! su: No module specific data is present
Oct 13 09:14:36.076 INFO running `"docker" "rm" "-f" "6bc63c4200928620fd737f9a19aff58e152174be5987726d96588e8e4d86f0ae"`
Oct 13 09:14:36.169 INFO blam! 6bc63c4200928620fd737f9a19aff58e152174be5987726d96588e8e4d86f0ae