Sep 04 23:17:05.889 INFO checking bifrost-0.3.0 against try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0 for pr-53893
Sep 04 23:17:05.889 INFO running: cargo +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets
Sep 04 23:17:05.889 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53893/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-2/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 23:17:06.074 INFO blam! 954bcccddfc7308867f5e0210e4c941cf544eca9939be37f12013308dd1dfc78
Sep 04 23:17:06.076 INFO running `"docker" "start" "-a" "954bcccddfc7308867f5e0210e4c941cf544eca9939be37f12013308dd1dfc78"`
Sep 04 23:17:06.716 INFO kablam!     Checking bifrost v0.3.0 (file:///source)
Sep 04 23:17:08.604 INFO kablam! warning: the feature `duration_extras` has been stable since 1.27.0 and no longer requires an attribute to enable
Sep 04 23:17:08.604 INFO kablam!  --> tests/tests.rs:1:12
Sep 04 23:17:08.604 INFO kablam!   |
Sep 04 23:17:08.604 INFO kablam! 1 | #![feature(duration_extras)]
Sep 04 23:17:08.604 INFO kablam!   |            ^^^^^^^^^^^^^^^
Sep 04 23:17:08.605 INFO kablam!   |
Sep 04 23:17:08.605 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 04 23:17:08.605 INFO kablam! 
Sep 04 23:17:08.647 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.94s
Sep 04 23:17:08.650 INFO kablam! su: No module specific data is present
Sep 04 23:17:09.160 INFO running `"docker" "rm" "-f" "954bcccddfc7308867f5e0210e4c941cf544eca9939be37f12013308dd1dfc78"`
Sep 04 23:17:09.325 INFO blam! 954bcccddfc7308867f5e0210e4c941cf544eca9939be37f12013308dd1dfc78