Aug 11 10:58:20.368 INFO checking iota-lib-rs-0.0.26 against try#a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195+tmplazy for libc-1
Aug 11 10:58:20.368 INFO running: cargo +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets
Aug 11 10:58:20.368 INFO creating container for: cargo +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets
Aug 11 10:58:20.368 INFO running `"docker" "create" "-v" "/tmp/crater.OiuCbhWHDXtW:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-7/try#a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195+tmplazy:/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 +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 11 10:58:20.613 INFO blam! 64b16e6ce0b52e5df2153de1e8a3828c9186fddc235e3b632cd979088f0d0497
Aug 11 10:58:20.616 INFO running `"docker" "start" "-a" "64b16e6ce0b52e5df2153de1e8a3828c9186fddc235e3b632cd979088f0d0497"`
Aug 11 10:58:22.081 INFO kablam!     Checking iota-lib-rs v0.0.26 (file:///source)
Aug 11 10:58:33.445 INFO kablam! warning: variable does not need to be mutable
Aug 11 10:58:33.445 INFO kablam!    --> src/crypto/iss.rs:415:17
Aug 11 10:58:33.445 INFO kablam!     |
Aug 11 10:58:33.445 INFO kablam! 415 |             let mut message_trits = converter::trits_from_string(MESSAGE);
Aug 11 10:58:33.445 INFO kablam!     |                 ----^^^^^^^^^^^^^
Aug 11 10:58:33.445 INFO kablam!     |                 |
Aug 11 10:58:33.445 INFO kablam!     |                 help: remove this `mut`
Aug 11 10:58:33.446 INFO kablam!     |
Aug 11 10:58:33.446 INFO kablam!     = note: #[warn(unused_mut)] on by default
Aug 11 10:58:33.446 INFO kablam! 
Aug 11 10:58:34.619 INFO kablam! error[E0635]: unknown feature `rust_2018_idioms`
Aug 11 10:58:34.619 INFO kablam!  --> src/lib.rs:3:12
Aug 11 10:58:34.619 INFO kablam!   |
Aug 11 10:58:34.619 INFO kablam! 3 | #![feature(rust_2018_idioms)]
Aug 11 10:58:34.619 INFO kablam!   |            ^^^^^^^^^^^^^^^^
Aug 11 10:58:34.619 INFO kablam! 
Aug 11 10:58:35.058 INFO kablam! error: aborting due to previous error
Aug 11 10:58:35.063 INFO kablam! 
Aug 11 10:58:35.063 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 10:58:35.092 INFO kablam! error: Could not compile `iota-lib-rs`.
Aug 11 10:58:35.092 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 11 10:58:36.509 INFO kablam! error[E0635]: unknown feature `rust_2018_idioms`
Aug 11 10:58:36.509 INFO kablam!  --> src/lib.rs:3:12
Aug 11 10:58:36.509 INFO kablam!   |
Aug 11 10:58:36.509 INFO kablam! 3 | #![feature(rust_2018_idioms)]
Aug 11 10:58:36.509 INFO kablam!   |            ^^^^^^^^^^^^^^^^
Aug 11 10:58:36.509 INFO kablam! 
Aug 11 10:58:36.837 INFO kablam! error: aborting due to previous error
Aug 11 10:58:36.837 INFO kablam! 
Aug 11 10:58:36.837 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 10:58:36.878 INFO kablam! error: Could not compile `iota-lib-rs`.
Aug 11 10:58:36.878 INFO kablam! 
Aug 11 10:58:36.878 INFO kablam! To learn more, run the command again with --verbose.
Aug 11 10:58:36.879 INFO kablam! su: No module specific data is present
Aug 11 10:58:37.505 INFO running `"docker" "rm" "-f" "64b16e6ce0b52e5df2153de1e8a3828c9186fddc235e3b632cd979088f0d0497"`
Aug 11 10:58:37.658 INFO blam! 64b16e6ce0b52e5df2153de1e8a3828c9186fddc235e3b632cd979088f0d0497