Aug 30 20:03:45.132 INFO checking difference-2.0.0 against try#2d477f9981361618ac78253c28051a66b6cea125 for pr-53707
Aug 30 20:03:45.133 INFO running: cargo +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets
Aug 30 20:03:45.133 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53707/try#2d477f9981361618ac78253c28051a66b6cea125:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-1/try#2d477f9981361618ac78253c28051a66b6cea125:/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 +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 20:03:45.314 INFO blam! b50f37140ae872aedebdd747f66dbac230fa3d96dd91605b5487297bfb809bf8
Aug 30 20:03:45.316 INFO running `"docker" "start" "-a" "b50f37140ae872aedebdd747f66dbac230fa3d96dd91605b5487297bfb809bf8"`
Aug 30 20:03:46.297 INFO kablam!     Checking difference v2.0.0 (file:///source)
Aug 30 20:03:47.676 INFO kablam! warning: unknown lint: `needless_pass_by_value`
Aug 30 20:03:47.676 INFO kablam!    --> tests/quickcheck.rs:103:9
Aug 30 20:03:47.676 INFO kablam!     |
Aug 30 20:03:47.676 INFO kablam! 103 | #[allow(needless_pass_by_value)]
Aug 30 20:03:47.677 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^
Aug 30 20:03:47.688 INFO kablam!     |
Aug 30 20:03:47.689 INFO kablam!     = note: #[warn(unknown_lints)] on by default
Aug 30 20:03:47.689 INFO kablam! 
Aug 30 20:03:51.387 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.18s
Aug 30 20:03:51.399 INFO kablam! su: No module specific data is present
Aug 30 20:03:52.064 INFO running `"docker" "rm" "-f" "b50f37140ae872aedebdd747f66dbac230fa3d96dd91605b5487297bfb809bf8"`
Aug 30 20:03:52.202 INFO blam! b50f37140ae872aedebdd747f66dbac230fa3d96dd91605b5487297bfb809bf8