Sep 19 19:04:53.977 INFO checking rustc-hex-2.0.1 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 19 19:04:53.978 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 19 19:04:53.978 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-6/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/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 +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 19:04:54.227 INFO blam! 9b83e384d84865173dabfecd3e2a0a49f37fcfe056861087801a270c9f0f709f
Sep 19 19:04:54.229 INFO running `"docker" "start" "-a" "9b83e384d84865173dabfecd3e2a0a49f37fcfe056861087801a270c9f0f709f"`
Sep 19 19:04:55.003 INFO kablam! usermod: no changes
Sep 19 19:04:55.029 INFO kablam!     Checking rustc-hex v2.0.1 (/source)
Sep 19 19:04:55.599 INFO kablam! error[E0283]: type annotations required: cannot resolve `_: std::iter::FromIterator<char>`
Sep 19 19:04:55.599 INFO kablam!   --> benches/hex.rs:14:22
Sep 19 19:04:55.599 INFO kablam!    |
Sep 19 19:04:55.599 INFO kablam! 14 |         s.as_bytes().to_hex();
Sep 19 19:04:55.599 INFO kablam!    |                      ^^^^^^
Sep 19 19:04:55.599 INFO kablam! 
Sep 19 19:04:55.599 INFO kablam! error[E0282]: type annotations needed
Sep 19 19:04:55.599 INFO kablam!   --> benches/hex.rs:25:9
Sep 19 19:04:55.599 INFO kablam!    |
Sep 19 19:04:55.599 INFO kablam! 23 |     let sb = s.as_bytes().to_hex();
Sep 19 19:04:55.599 INFO kablam!    |         -- consider giving `sb` a type
Sep 19 19:04:55.599 INFO kablam! 24 |     b.iter(|| {
Sep 19 19:04:55.599 INFO kablam! 25 |         sb.from_hex().unwrap();
Sep 19 19:04:55.599 INFO kablam!    |         ^^ cannot infer type
Sep 19 19:04:55.599 INFO kablam!    |
Sep 19 19:04:55.599 INFO kablam!    = note: type must be known at this point
Sep 19 19:04:55.599 INFO kablam! 
Sep 19 19:04:55.599 INFO kablam! error: aborting due to 2 previous errors
Sep 19 19:04:55.599 INFO kablam! 
Sep 19 19:04:55.599 INFO kablam! Some errors occurred: E0282, E0283.
Sep 19 19:04:55.599 INFO kablam! For more information about an error, try `rustc --explain E0282`.
Sep 19 19:04:55.607 INFO kablam! error: Could not compile `rustc-hex`.
Sep 19 19:04:55.607 INFO kablam! 
Sep 19 19:04:55.607 INFO kablam! To learn more, run the command again with --verbose.
Sep 19 19:04:55.608 INFO kablam! su: No module specific data is present
Sep 19 19:04:56.021 INFO running `"docker" "rm" "-f" "9b83e384d84865173dabfecd3e2a0a49f37fcfe056861087801a270c9f0f709f"`
Sep 19 19:04:56.136 INFO blam! 9b83e384d84865173dabfecd3e2a0a49f37fcfe056861087801a270c9f0f709f