Aug 11 10:58:22.724 INFO checking iota-lib-rs-0.0.26 against master#f6d43ed84207c7e58f363f46e5a438ff40f2b311 for libc-1
Aug 11 10:58:22.724 INFO running: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 10:58:22.724 INFO creating container for: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 10:58:22.725 INFO running `"docker" "create" "-v" "/tmp/crater.Zvbmn6w5KY2X:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-0/master#f6d43ed84207c7e58f363f46e5a438ff40f2b311:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 11 10:58:22.936 INFO blam! fc45aaeb59f9e1168911dcc9659e45673ac8d8d6f7d2cd07e5b260b1692b0dcb
Aug 11 10:58:22.937 INFO running `"docker" "start" "-a" "fc45aaeb59f9e1168911dcc9659e45673ac8d8d6f7d2cd07e5b260b1692b0dcb"`
Aug 11 10:58:24.645 INFO kablam!     Checking iota-lib-rs v0.0.26 (file:///source)
Aug 11 10:58:37.539 INFO kablam! warning: variable does not need to be mutable
Aug 11 10:58:37.539 INFO kablam!    --> src/crypto/iss.rs:415:17
Aug 11 10:58:37.539 INFO kablam!     |
Aug 11 10:58:37.539 INFO kablam! 415 |             let mut message_trits = converter::trits_from_string(MESSAGE);
Aug 11 10:58:37.539 INFO kablam!     |                 ----^^^^^^^^^^^^^
Aug 11 10:58:37.539 INFO kablam!     |                 |
Aug 11 10:58:37.539 INFO kablam!     |                 help: remove this `mut`
Aug 11 10:58:37.539 INFO kablam!     |
Aug 11 10:58:37.539 INFO kablam!     = note: #[warn(unused_mut)] on by default
Aug 11 10:58:37.540 INFO kablam! 
Aug 11 10:58:40.945 INFO kablam! error[E0635]: unknown feature `rust_2018_idioms`
Aug 11 10:58:40.945 INFO kablam!  --> src/lib.rs:3:12
Aug 11 10:58:40.945 INFO kablam!   |
Aug 11 10:58:40.945 INFO kablam! 3 | #![feature(rust_2018_idioms)]
Aug 11 10:58:40.945 INFO kablam!   |            ^^^^^^^^^^^^^^^^
Aug 11 10:58:40.945 INFO kablam! 
Aug 11 10:58:41.065 INFO kablam! error[E0635]: unknown feature `rust_2018_idioms`
Aug 11 10:58:41.065 INFO kablam!  --> src/lib.rs:3:12
Aug 11 10:58:41.065 INFO kablam!   |
Aug 11 10:58:41.065 INFO kablam! 3 | #![feature(rust_2018_idioms)]
Aug 11 10:58:41.065 INFO kablam!   |            ^^^^^^^^^^^^^^^^
Aug 11 10:58:41.065 INFO kablam! 
Aug 11 10:58:41.283 INFO kablam! error: aborting due to previous error
Aug 11 10:58:41.283 INFO kablam! 
Aug 11 10:58:41.283 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 10:58:41.300 INFO kablam! error: Could not compile `iota-lib-rs`.
Aug 11 10:58:41.300 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 11 10:58:41.326 INFO kablam! error: aborting due to previous error
Aug 11 10:58:41.326 INFO kablam! 
Aug 11 10:58:41.326 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 10:58:41.372 INFO kablam! error: Could not compile `iota-lib-rs`.
Aug 11 10:58:41.372 INFO kablam! 
Aug 11 10:58:41.372 INFO kablam! To learn more, run the command again with --verbose.
Aug 11 10:58:41.377 INFO kablam! su: No module specific data is present
Aug 11 10:58:41.975 INFO running `"docker" "rm" "-f" "fc45aaeb59f9e1168911dcc9659e45673ac8d8d6f7d2cd07e5b260b1692b0dcb"`
Aug 11 10:58:42.159 INFO blam! fc45aaeb59f9e1168911dcc9659e45673ac8d8d6f7d2cd07e5b260b1692b0dcb