Aug 17 19:23:52.980 INFO checking iota-lib-rs-0.0.33 against master#142bb27373126edf8367f526358b6c72ecf1d8df for pr-53426
Aug 17 19:23:52.980 INFO running: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 19:23:52.980 INFO creating container for: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 19:23:52.980 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53426/master#142bb27373126edf8367f526358b6c72ecf1d8df:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-0/master#142bb27373126edf8367f526358b6c72ecf1d8df:/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=500" "-e" "CMD=cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 17 19:23:53.237 INFO blam! 505b8067c5afc681c59b1232f8c4b4e73b79397828be9ded2379e769f826b39c
Aug 17 19:23:53.240 INFO running `"docker" "start" "-a" "505b8067c5afc681c59b1232f8c4b4e73b79397828be9ded2379e769f826b39c"`
Aug 17 19:23:54.481 INFO kablam!    Compiling crunchy v0.2.1
Aug 17 19:23:56.349 INFO kablam!     Checking iota-lib-rs v0.0.33 (file:///source)
Aug 17 19:24:17.040 INFO kablam! warning: variable does not need to be mutable
Aug 17 19:24:17.040 INFO kablam!    --> src/crypto/iss.rs:415:17
Aug 17 19:24:17.040 INFO kablam!     |
Aug 17 19:24:17.041 INFO kablam! 415 |             let mut message_trits = converter::trits_from_string(MESSAGE);
Aug 17 19:24:17.041 INFO kablam!     |                 ----^^^^^^^^^^^^^
Aug 17 19:24:17.041 INFO kablam!     |                 |
Aug 17 19:24:17.041 INFO kablam!     |                 help: remove this `mut`
Aug 17 19:24:17.041 INFO kablam!     |
Aug 17 19:24:17.041 INFO kablam!     = note: #[warn(unused_mut)] on by default
Aug 17 19:24:17.041 INFO kablam! 
Aug 17 19:24:19.177 INFO kablam! error[E0635]: unknown feature `rust_2018_idioms`
Aug 17 19:24:19.177 INFO kablam!   --> src/lib.rs:43:12
Aug 17 19:24:19.177 INFO kablam!    |
Aug 17 19:24:19.177 INFO kablam! 43 | #![feature(rust_2018_idioms)]
Aug 17 19:24:19.177 INFO kablam!    |            ^^^^^^^^^^^^^^^^
Aug 17 19:24:19.177 INFO kablam! 
Aug 17 19:24:19.778 INFO kablam! error: aborting due to previous error
Aug 17 19:24:19.779 INFO kablam! 
Aug 17 19:24:19.779 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 17 19:24:19.826 INFO kablam! error: Could not compile `iota-lib-rs`.
Aug 17 19:24:19.827 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 17 19:24:21.038 INFO kablam! error[E0635]: unknown feature `rust_2018_idioms`
Aug 17 19:24:21.038 INFO kablam!   --> src/lib.rs:43:12
Aug 17 19:24:21.038 INFO kablam!    |
Aug 17 19:24:21.038 INFO kablam! 43 | #![feature(rust_2018_idioms)]
Aug 17 19:24:21.038 INFO kablam!    |            ^^^^^^^^^^^^^^^^
Aug 17 19:24:21.038 INFO kablam! 
Aug 17 19:24:21.312 INFO kablam! error: aborting due to previous error
Aug 17 19:24:21.312 INFO kablam! 
Aug 17 19:24:21.312 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 17 19:24:21.369 INFO kablam! error: Could not compile `iota-lib-rs`.
Aug 17 19:24:21.370 INFO kablam! 
Aug 17 19:24:21.370 INFO kablam! To learn more, run the command again with --verbose.
Aug 17 19:24:21.378 INFO kablam! su: No module specific data is present
Aug 17 19:24:21.979 INFO running `"docker" "rm" "-f" "505b8067c5afc681c59b1232f8c4b4e73b79397828be9ded2379e769f826b39c"`
Aug 17 19:24:22.165 INFO blam! 505b8067c5afc681c59b1232f8c4b4e73b79397828be9ded2379e769f826b39c