Sep 04 13:37:24.559 INFO checking iota-lib-rs-0.0.34 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 13:37:24.559 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 13:37:24.559 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-0/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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 +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 13:37:24.822 INFO blam! 77dff2b7029bd22cc16b7a271d47471e5dd7ebadc871d475e63dfb55b6c8f81a
Sep 04 13:37:24.825 INFO running `"docker" "start" "-a" "77dff2b7029bd22cc16b7a271d47471e5dd7ebadc871d475e63dfb55b6c8f81a"`
Sep 04 13:37:25.791 INFO kablam!     Checking iota-lib-rs v0.0.34 (file:///source)
Sep 04 13:37:25.915 INFO kablam! warning[E0705]: the feature `rust_2018_preview` is included in the Rust 2018 edition
Sep 04 13:37:25.915 INFO kablam!   --> src/lib.rs:42:12
Sep 04 13:37:25.915 INFO kablam!    |
Sep 04 13:37:25.915 INFO kablam! 42 | #![feature(rust_2018_preview)]
Sep 04 13:37:25.915 INFO kablam!    |            ^^^^^^^^^^^^^^^^^
Sep 04 13:37:25.916 INFO kablam! 
Sep 04 13:37:25.919 INFO kablam! warning[E0705]: the feature `rust_2018_preview` is included in the Rust 2018 edition
Sep 04 13:37:25.919 INFO kablam!   --> src/lib.rs:42:12
Sep 04 13:37:25.919 INFO kablam!    |
Sep 04 13:37:25.919 INFO kablam! 42 | #![feature(rust_2018_preview)]
Sep 04 13:37:25.919 INFO kablam!    |            ^^^^^^^^^^^^^^^^^
Sep 04 13:37:25.919 INFO kablam! 
Sep 04 13:37:40.042 INFO kablam! error[E0635]: unknown feature `rust_2018_idioms`
Sep 04 13:37:40.042 INFO kablam!   --> src/lib.rs:43:12
Sep 04 13:37:40.042 INFO kablam!    |
Sep 04 13:37:40.042 INFO kablam! 43 | #![feature(rust_2018_idioms)]
Sep 04 13:37:40.043 INFO kablam!    |            ^^^^^^^^^^^^^^^^
Sep 04 13:37:40.043 INFO kablam! 
Sep 04 13:37:40.194 INFO kablam! error: aborting due to previous error
Sep 04 13:37:40.194 INFO kablam! 
Sep 04 13:37:40.194 INFO kablam! Some errors occurred: E0635, E0705.
Sep 04 13:37:40.195 INFO kablam! For more information about an error, try `rustc --explain E0635`.
Sep 04 13:37:40.211 INFO kablam! error: Could not compile `iota-lib-rs`.
Sep 04 13:37:40.211 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 04 13:37:40.664 INFO kablam! error[E0635]: unknown feature `rust_2018_idioms`
Sep 04 13:37:40.665 INFO kablam!   --> src/lib.rs:43:12
Sep 04 13:37:40.665 INFO kablam!    |
Sep 04 13:37:40.665 INFO kablam! 43 | #![feature(rust_2018_idioms)]
Sep 04 13:37:40.665 INFO kablam!    |            ^^^^^^^^^^^^^^^^
Sep 04 13:37:40.665 INFO kablam! 
Sep 04 13:37:40.900 INFO kablam! error: aborting due to previous error
Sep 04 13:37:40.900 INFO kablam! 
Sep 04 13:37:40.900 INFO kablam! Some errors occurred: E0635, E0705.
Sep 04 13:37:40.900 INFO kablam! For more information about an error, try `rustc --explain E0635`.
Sep 04 13:37:40.934 INFO kablam! error: Could not compile `iota-lib-rs`.
Sep 04 13:37:40.934 INFO kablam! 
Sep 04 13:37:40.934 INFO kablam! To learn more, run the command again with --verbose.
Sep 04 13:37:40.936 INFO kablam! su: No module specific data is present
Sep 04 13:37:41.476 INFO running `"docker" "rm" "-f" "77dff2b7029bd22cc16b7a271d47471e5dd7ebadc871d475e63dfb55b6c8f81a"`
Sep 04 13:37:41.611 INFO blam! 77dff2b7029bd22cc16b7a271d47471e5dd7ebadc871d475e63dfb55b6c8f81a