Nov 01 16:56:44.224 INFO checking rustc-hex-2.0.1 against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 16:56:44.224 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-1/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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"`
Nov 01 16:56:44.548 INFO blam! b9b1d19a046fe4f2bad312f5140fdade4c538a45cd5cd055541f2a9f260c2930
Nov 01 16:56:44.560 INFO running `"docker" "start" "-a" "b9b1d19a046fe4f2bad312f5140fdade4c538a45cd5cd055541f2a9f260c2930"`
Nov 01 16:56:45.632 INFO kablam! usermod: no changes
Nov 01 16:56:45.696 INFO kablam!     Checking rustc-hex v2.0.1 (/source)
Nov 01 16:56:47.462 INFO kablam! error[E0283]: type annotations required: cannot resolve `_: std::iter::FromIterator<char>`
Nov 01 16:56:47.462 INFO kablam!   --> benches/hex.rs:14:22
Nov 01 16:56:47.463 INFO kablam!    |
Nov 01 16:56:47.463 INFO kablam! 14 |         s.as_bytes().to_hex();
Nov 01 16:56:47.463 INFO kablam!    |                      ^^^^^^
Nov 01 16:56:47.463 INFO kablam! 
Nov 01 16:56:47.468 INFO kablam! error[E0282]: type annotations needed
Nov 01 16:56:47.469 INFO kablam!   --> benches/hex.rs:25:9
Nov 01 16:56:47.469 INFO kablam!    |
Nov 01 16:56:47.469 INFO kablam! 23 |     let sb = s.as_bytes().to_hex();
Nov 01 16:56:47.470 INFO kablam!    |         -- consider giving `sb` a type
Nov 01 16:56:47.470 INFO kablam! 24 |     b.iter(|| {
Nov 01 16:56:47.470 INFO kablam! 25 |         sb.from_hex().unwrap();
Nov 01 16:56:47.470 INFO kablam!    |         ^^ cannot infer type
Nov 01 16:56:47.471 INFO kablam!    |
Nov 01 16:56:47.471 INFO kablam!    = note: type must be known at this point
Nov 01 16:56:47.471 INFO kablam! 
Nov 01 16:56:47.472 INFO kablam! error: aborting due to 2 previous errors
Nov 01 16:56:47.472 INFO kablam! 
Nov 01 16:56:47.472 INFO kablam! Some errors occurred: E0282, E0283.
Nov 01 16:56:47.472 INFO kablam! For more information about an error, try `rustc --explain E0282`.
Nov 01 16:56:47.473 INFO kablam! error: Could not compile `rustc-hex`.
Nov 01 16:56:47.473 INFO kablam! 
Nov 01 16:56:47.473 INFO kablam! To learn more, run the command again with --verbose.
Nov 01 16:56:47.473 INFO kablam! su: No module specific data is present
Nov 01 16:56:48.317 INFO running `"docker" "rm" "-f" "b9b1d19a046fe4f2bad312f5140fdade4c538a45cd5cd055541f2a9f260c2930"`
Nov 01 16:56:48.441 INFO blam! b9b1d19a046fe4f2bad312f5140fdade4c538a45cd5cd055541f2a9f260c2930