Sep 10 10:28:03.264 INFO checking rwcell-0.1.2 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 10:28:03.265 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 10:28:03.265 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-6/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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 +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 10:28:03.394 INFO blam! d49715a1fafa38e776d0d4b42f5b91c99b89c23ece35569d1eccf5142c8b2c5c
Sep 10 10:28:03.396 INFO running `"docker" "start" "-a" "d49715a1fafa38e776d0d4b42f5b91c99b89c23ece35569d1eccf5142c8b2c5c"`
Sep 10 10:28:04.271 INFO kablam! usermod: no changes
Sep 10 10:28:04.358 INFO kablam!     Checking rwcell v0.1.2 (file:///source)
Sep 10 10:28:04.760 INFO kablam! warning: the feature `time2` has been stable since 1.8.0 and no longer requires an attribute to enable
Sep 10 10:28:04.760 INFO kablam!  --> src/lib.rs:2:12
Sep 10 10:28:04.760 INFO kablam!   |
Sep 10 10:28:04.760 INFO kablam! 2 | #![feature(time2)]
Sep 10 10:28:04.760 INFO kablam!   |            ^^^^^
Sep 10 10:28:04.760 INFO kablam!   |
Sep 10 10:28:04.760 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 10 10:28:04.760 INFO kablam! 
Sep 10 10:28:04.794 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
Sep 10 10:28:04.794 INFO kablam! su: No module specific data is present
Sep 10 10:28:05.454 INFO running `"docker" "rm" "-f" "d49715a1fafa38e776d0d4b42f5b91c99b89c23ece35569d1eccf5142c8b2c5c"`
Sep 10 10:28:05.507 INFO blam! d49715a1fafa38e776d0d4b42f5b91c99b89c23ece35569d1eccf5142c8b2c5c