Sep 02 10:15:19.636 INFO checking iota-lib-rs-0.0.26 against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 02 10:15:19.636 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 02 10:15:19.636 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-0/try#952c7dbfa2628309f557b367929ffc17af20b332:/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 +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 10:15:19.846 INFO blam! 564814d2ddcac784988336252ed7f91808e76f938805e9eb1fd40d268ddc67e6
Sep 02 10:15:19.848 INFO running `"docker" "start" "-a" "564814d2ddcac784988336252ed7f91808e76f938805e9eb1fd40d268ddc67e6"`
Sep 02 10:15:20.965 INFO kablam!     Checking iota-lib-rs v0.0.26 (file:///source)
Sep 02 10:15:21.054 INFO kablam! warning[E0705]: the feature `rust_2018_preview` is included in the Rust 2018 edition
Sep 02 10:15:21.054 INFO kablam!  --> src/lib.rs:2:12
Sep 02 10:15:21.054 INFO kablam!   |
Sep 02 10:15:21.054 INFO kablam! 2 | #![feature(rust_2018_preview)]
Sep 02 10:15:21.054 INFO kablam!   |            ^^^^^^^^^^^^^^^^^
Sep 02 10:15:21.055 INFO kablam! 
Sep 02 10:15:21.093 INFO kablam! warning[E0705]: the feature `rust_2018_preview` is included in the Rust 2018 edition
Sep 02 10:15:21.093 INFO kablam!  --> src/lib.rs:2:12
Sep 02 10:15:21.093 INFO kablam!   |
Sep 02 10:15:21.093 INFO kablam! 2 | #![feature(rust_2018_preview)]
Sep 02 10:15:21.093 INFO kablam!   |            ^^^^^^^^^^^^^^^^^
Sep 02 10:15:21.093 INFO kablam! 
Sep 02 10:15:32.020 INFO kablam! warning: variable does not need to be mutable
Sep 02 10:15:32.020 INFO kablam!    --> src/crypto/iss.rs:415:17
Sep 02 10:15:32.020 INFO kablam!     |
Sep 02 10:15:32.020 INFO kablam! 415 |             let mut message_trits = converter::trits_from_string(MESSAGE);
Sep 02 10:15:32.020 INFO kablam!     |                 ----^^^^^^^^^^^^^
Sep 02 10:15:32.020 INFO kablam!     |                 |
Sep 02 10:15:32.020 INFO kablam!     |                 help: remove this `mut`
Sep 02 10:15:32.020 INFO kablam!     |
Sep 02 10:15:32.020 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 02 10:15:32.020 INFO kablam! 
Sep 02 10:15:32.635 INFO kablam! error[E0635]: unknown feature `rust_2018_idioms`
Sep 02 10:15:32.635 INFO kablam!  --> src/lib.rs:3:12
Sep 02 10:15:32.635 INFO kablam!   |
Sep 02 10:15:32.635 INFO kablam! 3 | #![feature(rust_2018_idioms)]
Sep 02 10:15:32.635 INFO kablam!   |            ^^^^^^^^^^^^^^^^
Sep 02 10:15:32.635 INFO kablam! 
Sep 02 10:15:32.890 INFO kablam! error: aborting due to previous error
Sep 02 10:15:32.890 INFO kablam! 
Sep 02 10:15:32.890 INFO kablam! Some errors occurred: E0635, E0705.
Sep 02 10:15:32.890 INFO kablam! For more information about an error, try `rustc --explain E0635`.
Sep 02 10:15:32.909 INFO kablam! error: Could not compile `iota-lib-rs`.
Sep 02 10:15:32.909 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 02 10:15:33.241 INFO kablam! error[E0635]: unknown feature `rust_2018_idioms`
Sep 02 10:15:33.241 INFO kablam!  --> src/lib.rs:3:12
Sep 02 10:15:33.241 INFO kablam!   |
Sep 02 10:15:33.241 INFO kablam! 3 | #![feature(rust_2018_idioms)]
Sep 02 10:15:33.241 INFO kablam!   |            ^^^^^^^^^^^^^^^^
Sep 02 10:15:33.241 INFO kablam! 
Sep 02 10:15:33.411 INFO kablam! error: aborting due to previous error
Sep 02 10:15:33.411 INFO kablam! 
Sep 02 10:15:33.411 INFO kablam! Some errors occurred: E0635, E0705.
Sep 02 10:15:33.411 INFO kablam! For more information about an error, try `rustc --explain E0635`.
Sep 02 10:15:33.437 INFO kablam! error: Could not compile `iota-lib-rs`.
Sep 02 10:15:33.437 INFO kablam! 
Sep 02 10:15:33.438 INFO kablam! To learn more, run the command again with --verbose.
Sep 02 10:15:33.439 INFO kablam! su: No module specific data is present
Sep 02 10:15:33.844 INFO running `"docker" "rm" "-f" "564814d2ddcac784988336252ed7f91808e76f938805e9eb1fd40d268ddc67e6"`
Sep 02 10:15:33.962 INFO blam! 564814d2ddcac784988336252ed7f91808e76f938805e9eb1fd40d268ddc67e6