Sep 21 08:24:50.956 INFO checking iota-pow-box-0.0.2 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 08:24:50.956 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 08:24:50.956 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-1/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/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=1000" "-e" "CMD=cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 08:24:51.110 INFO blam! 0705e7e7a548dd9c4b1284a12d5d1852609e243f5f02a643023c4f70e738a2bb
Sep 21 08:24:51.112 INFO running `"docker" "start" "-a" "0705e7e7a548dd9c4b1284a12d5d1852609e243f5f02a643023c4f70e738a2bb"`
Sep 21 08:24:51.908 INFO kablam! usermod: no changes
Sep 21 08:24:52.262 INFO kablam!     Checking parking_lot v0.3.8
Sep 21 08:24:52.268 INFO kablam!     Checking iota-lib-rs v0.0.25
Sep 21 08:24:52.942 INFO kablam!     Checking chashmap v2.2.0
Sep 21 08:24:58.722 INFO kablam! error[E0635]: unknown feature `rust_2018_idioms`
Sep 21 08:24:58.722 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/iota-lib-rs-0.0.25/src/lib.rs:3:12
Sep 21 08:24:58.722 INFO kablam!   |
Sep 21 08:24:58.722 INFO kablam! 3 | #![feature(rust_2018_idioms)]
Sep 21 08:24:58.722 INFO kablam!   |            ^^^^^^^^^^^^^^^^
Sep 21 08:24:58.722 INFO kablam! 
Sep 21 08:24:58.850 INFO kablam! error: aborting due to previous error
Sep 21 08:24:58.850 INFO kablam! 
Sep 21 08:24:58.850 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 21 08:24:58.886 INFO kablam! error: Could not compile `iota-lib-rs`.
Sep 21 08:24:58.886 INFO kablam! 
Sep 21 08:24:58.886 INFO kablam! To learn more, run the command again with --verbose.
Sep 21 08:24:58.886 INFO kablam! su: No module specific data is present
Sep 21 08:24:59.961 INFO running `"docker" "rm" "-f" "0705e7e7a548dd9c4b1284a12d5d1852609e243f5f02a643023c4f70e738a2bb"`
Sep 21 08:25:00.092 INFO blam! 0705e7e7a548dd9c4b1284a12d5d1852609e243f5f02a643023c4f70e738a2bb