Sep 04 13:36:49.520 INFO checking iota-pow-box-0.0.2 against try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0 for pr-53893
Sep 04 13:36:49.520 INFO running: cargo +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets
Sep 04 13:36:49.520 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53893/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-1/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/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 +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 13:36:49.739 INFO blam! 2b4c7eb78933d2ae9b0ff5f8455f356c3dc414704344f4f3a709cfc5fbc5cce6
Sep 04 13:36:49.740 INFO running `"docker" "start" "-a" "2b4c7eb78933d2ae9b0ff5f8455f356c3dc414704344f4f3a709cfc5fbc5cce6"`
Sep 04 13:36:50.728 INFO kablam!     Checking chashmap v2.2.0
Sep 04 13:36:50.731 INFO kablam!     Checking iota-lib-rs v0.0.25
Sep 04 13:36:59.275 INFO kablam! error[E0635]: unknown feature `rust_2018_idioms`
Sep 04 13:36:59.275 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/iota-lib-rs-0.0.25/src/lib.rs:3:12
Sep 04 13:36:59.276 INFO kablam!   |
Sep 04 13:36:59.276 INFO kablam! 3 | #![feature(rust_2018_idioms)]
Sep 04 13:36:59.276 INFO kablam!   |            ^^^^^^^^^^^^^^^^
Sep 04 13:36:59.276 INFO kablam! 
Sep 04 13:36:59.421 INFO kablam! error: aborting due to previous error
Sep 04 13:36:59.421 INFO kablam! 
Sep 04 13:36:59.421 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 04 13:36:59.451 INFO kablam! error: Could not compile `iota-lib-rs`.
Sep 04 13:36:59.451 INFO kablam! 
Sep 04 13:36:59.451 INFO kablam! To learn more, run the command again with --verbose.
Sep 04 13:36:59.452 INFO kablam! su: No module specific data is present
Sep 04 13:36:59.854 INFO running `"docker" "rm" "-f" "2b4c7eb78933d2ae9b0ff5f8455f356c3dc414704344f4f3a709cfc5fbc5cce6"`
Sep 04 13:36:59.956 INFO blam! 2b4c7eb78933d2ae9b0ff5f8455f356c3dc414704344f4f3a709cfc5fbc5cce6