Nov 28 18:46:58.505 INFO checking rustc-hex-2.0.1 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 18:46:58.505 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 28 18:46:58.841 INFO [stdout] 51e8ae0f047cc8a3e3fd329d2ba2d915b4dfe1bcf654ed19f24cad5d6c78481e
Nov 28 18:46:58.846 INFO running `"docker" "start" "-a" "51e8ae0f047cc8a3e3fd329d2ba2d915b4dfe1bcf654ed19f24cad5d6c78481e"`
Nov 28 18:46:59.944 INFO [stderr] usermod: no changes
Nov 28 18:47:00.012 INFO [stderr]     Checking rustc-hex v2.0.1 (/source)
Nov 28 18:47:01.310 INFO [stderr] error[E0283]: type annotations required: cannot resolve `_: std::iter::FromIterator<char>`
Nov 28 18:47:01.311 INFO [stderr]   --> benches/hex.rs:14:22
Nov 28 18:47:01.311 INFO [stderr]    |
Nov 28 18:47:01.311 INFO [stderr] 14 |         s.as_bytes().to_hex();
Nov 28 18:47:01.311 INFO [stderr]    |                      ^^^^^^
Nov 28 18:47:01.311 INFO [stderr] 
Nov 28 18:47:01.311 INFO [stderr] error[E0282]: type annotations needed
Nov 28 18:47:01.311 INFO [stderr]   --> benches/hex.rs:25:9
Nov 28 18:47:01.311 INFO [stderr]    |
Nov 28 18:47:01.311 INFO [stderr] 23 |     let sb = s.as_bytes().to_hex();
Nov 28 18:47:01.311 INFO [stderr]    |         -- consider giving `sb` a type
Nov 28 18:47:01.311 INFO [stderr] 24 |     b.iter(|| {
Nov 28 18:47:01.311 INFO [stderr] 25 |         sb.from_hex().unwrap();
Nov 28 18:47:01.311 INFO [stderr]    |         ^^ cannot infer type
Nov 28 18:47:01.311 INFO [stderr]    |
Nov 28 18:47:01.311 INFO [stderr]    = note: type must be known at this point
Nov 28 18:47:01.311 INFO [stderr] 
Nov 28 18:47:01.315 INFO [stderr] error: aborting due to 2 previous errors
Nov 28 18:47:01.315 INFO [stderr] 
Nov 28 18:47:01.315 INFO [stderr] Some errors occurred: E0282, E0283.
Nov 28 18:47:01.315 INFO [stderr] For more information about an error, try `rustc --explain E0282`.
Nov 28 18:47:01.325 INFO [stderr] error: Could not compile `rustc-hex`.
Nov 28 18:47:01.325 INFO [stderr] 
Nov 28 18:47:01.325 INFO [stderr] To learn more, run the command again with --verbose.
Nov 28 18:47:01.325 INFO [stderr] su: No module specific data is present
Nov 28 18:47:01.796 INFO running `"docker" "inspect" "51e8ae0f047cc8a3e3fd329d2ba2d915b4dfe1bcf654ed19f24cad5d6c78481e"`
Nov 28 18:47:02.004 INFO running `"docker" "rm" "-f" "51e8ae0f047cc8a3e3fd329d2ba2d915b4dfe1bcf654ed19f24cad5d6c78481e"`
Nov 28 18:47:02.205 INFO [stdout] 51e8ae0f047cc8a3e3fd329d2ba2d915b4dfe1bcf654ed19f24cad5d6c78481e