Sep 02 02:24:29.907 INFO checking bifrost-0.3.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53831
Sep 02 02:24:29.907 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 02:24:29.907 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53831/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-1/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 02:24:30.129 INFO blam! 72ffbed84f6ef6d50ddc79a5a8d3816b2184f2800ebf1c7c7144f6ba809dbdc1
Sep 02 02:24:30.131 INFO running `"docker" "start" "-a" "72ffbed84f6ef6d50ddc79a5a8d3816b2184f2800ebf1c7c7144f6ba809dbdc1"`
Sep 02 02:24:31.077 INFO kablam!     Checking bifrost v0.3.0 (file:///source)
Sep 02 02:24:32.799 INFO kablam! warning: the feature `duration_extras` has been stable since 1.27.0 and no longer requires an attribute to enable
Sep 02 02:24:32.800 INFO kablam!  --> tests/tests.rs:1:12
Sep 02 02:24:32.800 INFO kablam!   |
Sep 02 02:24:32.800 INFO kablam! 1 | #![feature(duration_extras)]
Sep 02 02:24:32.800 INFO kablam!   |            ^^^^^^^^^^^^^^^
Sep 02 02:24:32.800 INFO kablam!   |
Sep 02 02:24:32.800 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 02 02:24:32.800 INFO kablam! 
Sep 02 02:24:32.819 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.76s
Sep 02 02:24:32.822 INFO kablam! su: No module specific data is present
Sep 02 02:24:33.514 INFO running `"docker" "rm" "-f" "72ffbed84f6ef6d50ddc79a5a8d3816b2184f2800ebf1c7c7144f6ba809dbdc1"`
Sep 02 02:24:33.595 INFO blam! 72ffbed84f6ef6d50ddc79a5a8d3816b2184f2800ebf1c7c7144f6ba809dbdc1