Sep 02 19:55:53.583 INFO checking bifrost-0.3.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 19:55:53.583 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 19:55:53.583 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-0/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 19:55:53.850 INFO blam! ed3caf19b3afc254c9f13944f593c50f01da20f8da816b2110a42e3e8bee5ad5
Sep 02 19:55:53.852 INFO running `"docker" "start" "-a" "ed3caf19b3afc254c9f13944f593c50f01da20f8da816b2110a42e3e8bee5ad5"`
Sep 02 19:55:54.806 INFO kablam!     Checking bifrost v0.3.0 (file:///source)
Sep 02 19:55:57.158 INFO kablam! warning: the feature `duration_extras` has been stable since 1.27.0 and no longer requires an attribute to enable
Sep 02 19:55:57.158 INFO kablam!  --> tests/tests.rs:1:12
Sep 02 19:55:57.158 INFO kablam!   |
Sep 02 19:55:57.158 INFO kablam! 1 | #![feature(duration_extras)]
Sep 02 19:55:57.158 INFO kablam!   |            ^^^^^^^^^^^^^^^
Sep 02 19:55:57.158 INFO kablam!   |
Sep 02 19:55:57.158 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 02 19:55:57.158 INFO kablam! 
Sep 02 19:55:57.202 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.44s
Sep 02 19:55:57.209 INFO kablam! su: No module specific data is present
Sep 02 19:55:57.706 INFO running `"docker" "rm" "-f" "ed3caf19b3afc254c9f13944f593c50f01da20f8da816b2110a42e3e8bee5ad5"`
Sep 02 19:55:57.811 INFO blam! ed3caf19b3afc254c9f13944f593c50f01da20f8da816b2110a42e3e8bee5ad5