Sep 17 22:42:27.977 INFO checking iota-pow-box-0.0.2 against try#cfeeefe83c83bceb55d60d7e2be173db7597ed50 for pr-54033
Sep 17 22:42:27.977 INFO running: cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets
Sep 17 22:42:27.977 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54033/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-6/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/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 +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 17 22:42:28.131 INFO blam! c26caeb8694cadec7c3ee7f381f86d251d43238e237c5a1de8cebf6c27d89580
Sep 17 22:42:28.137 INFO running `"docker" "start" "-a" "c26caeb8694cadec7c3ee7f381f86d251d43238e237c5a1de8cebf6c27d89580"`
Sep 17 22:42:29.632 INFO kablam! usermod: no changes
Sep 17 22:42:29.959 INFO kablam!     Checking rocket_contrib v0.3.16
Sep 17 22:42:29.959 INFO kablam!     Checking iota-lib-rs v0.0.25
Sep 17 22:42:35.799 INFO kablam! error[E0635]: unknown feature `rust_2018_idioms`
Sep 17 22:42:35.799 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/iota-lib-rs-0.0.25/src/lib.rs:3:12
Sep 17 22:42:35.799 INFO kablam!   |
Sep 17 22:42:35.799 INFO kablam! 3 | #![feature(rust_2018_idioms)]
Sep 17 22:42:35.799 INFO kablam!   |            ^^^^^^^^^^^^^^^^
Sep 17 22:42:35.799 INFO kablam! 
Sep 17 22:42:35.924 INFO kablam! error: aborting due to previous error
Sep 17 22:42:35.924 INFO kablam! 
Sep 17 22:42:35.924 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 17 22:42:35.958 INFO kablam! error: Could not compile `iota-lib-rs`.
Sep 17 22:42:35.959 INFO kablam! 
Sep 17 22:42:35.959 INFO kablam! To learn more, run the command again with --verbose.
Sep 17 22:42:35.959 INFO kablam! su: No module specific data is present
Sep 17 22:42:36.747 INFO running `"docker" "rm" "-f" "c26caeb8694cadec7c3ee7f381f86d251d43238e237c5a1de8cebf6c27d89580"`
Sep 17 22:42:37.103 INFO blam! c26caeb8694cadec7c3ee7f381f86d251d43238e237c5a1de8cebf6c27d89580