Sep 01 09:50:01.880 INFO checking bifrost-0.3.0 against try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b for pr-53578
Sep 01 09:50:01.880 INFO running: cargo +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets
Sep 01 09:50:01.880 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53578/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-1/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/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 +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 09:50:02.118 INFO blam! c333900cc8179b745afc3647ecc67353ce53e08f4b5078c1be6130f3178c124a
Sep 01 09:50:02.121 INFO running `"docker" "start" "-a" "c333900cc8179b745afc3647ecc67353ce53e08f4b5078c1be6130f3178c124a"`
Sep 01 09:50:03.067 INFO kablam!     Checking bifrost v0.3.0 (file:///source)
Sep 01 09:50:05.414 INFO kablam! warning: the feature `duration_extras` has been stable since 1.27.0 and no longer requires an attribute to enable
Sep 01 09:50:05.414 INFO kablam!  --> tests/tests.rs:1:12
Sep 01 09:50:05.414 INFO kablam!   |
Sep 01 09:50:05.414 INFO kablam! 1 | #![feature(duration_extras)]
Sep 01 09:50:05.414 INFO kablam!   |            ^^^^^^^^^^^^^^^
Sep 01 09:50:05.415 INFO kablam!   |
Sep 01 09:50:05.415 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 01 09:50:05.415 INFO kablam! 
Sep 01 09:50:05.480 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.45s
Sep 01 09:50:05.484 INFO kablam! su: No module specific data is present
Sep 01 09:50:06.050 INFO running `"docker" "rm" "-f" "c333900cc8179b745afc3647ecc67353ce53e08f4b5078c1be6130f3178c124a"`
Sep 01 09:50:06.220 INFO blam! c333900cc8179b745afc3647ecc67353ce53e08f4b5078c1be6130f3178c124a