Aug 30 23:56:45.255 INFO checking backoff-0.1.2 against try#2d477f9981361618ac78253c28051a66b6cea125 for pr-53707
Aug 30 23:56:45.255 INFO running: cargo +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets
Aug 30 23:56:45.255 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53707/try#2d477f9981361618ac78253c28051a66b6cea125:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-2/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 23:56:45.502 INFO blam! 7a468ad6f4d63632eb853655cc4b396f9ce711bb04138090f5607f8484b85ed0
Aug 30 23:56:45.504 INFO running `"docker" "start" "-a" "7a468ad6f4d63632eb853655cc4b396f9ce711bb04138090f5607f8484b85ed0"`
Aug 30 23:56:46.482 INFO kablam!     Checking backoff v0.1.2 (file:///source)
Aug 30 23:56:47.935 INFO kablam! warning: unknown lint: `needless_pass_by_value`
Aug 30 23:56:47.935 INFO kablam!   --> examples/permanent_error.rs:10:9
Aug 30 23:56:47.935 INFO kablam!    |
Aug 30 23:56:47.935 INFO kablam! 10 | #[allow(needless_pass_by_value)]
Aug 30 23:56:47.935 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^
Aug 30 23:56:47.960 INFO kablam!    |
Aug 30 23:56:47.961 INFO kablam!    = note: #[warn(unknown_lints)] on by default
Aug 30 23:56:47.961 INFO kablam! 
Aug 30 23:56:53.735 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 7.41s
Aug 30 23:56:53.744 INFO kablam! su: No module specific data is present
Aug 30 23:56:54.565 INFO running `"docker" "rm" "-f" "7a468ad6f4d63632eb853655cc4b396f9ce711bb04138090f5607f8484b85ed0"`
Aug 30 23:56:54.665 INFO blam! 7a468ad6f4d63632eb853655cc4b396f9ce711bb04138090f5607f8484b85ed0