Aug 30 23:32:19.154 INFO checking backoff-0.1.2 against try#bc5a74802bb3ffc82f51ef04bca58d64220124c4 for pr-53699
Aug 30 23:32:19.154 INFO running: cargo +bc5a74802bb3ffc82f51ef04bca58d64220124c4-alt check --frozen --all --all-targets
Aug 30 23:32:19.155 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53699/try#bc5a74802bb3ffc82f51ef04bca58d64220124c4:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53699/worker-2/try#bc5a74802bb3ffc82f51ef04bca58d64220124c4:/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 +bc5a74802bb3ffc82f51ef04bca58d64220124c4-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 23:32:19.410 INFO blam! 1eca9dbaab16657654a07353f82b61f44590bc6cc9d1d206a991349cf6ab9174
Aug 30 23:32:19.412 INFO running `"docker" "start" "-a" "1eca9dbaab16657654a07353f82b61f44590bc6cc9d1d206a991349cf6ab9174"`
Aug 30 23:32:20.470 INFO kablam!     Checking backoff v0.1.2 (file:///source)
Aug 30 23:32:22.171 INFO kablam! warning: unknown lint: `needless_pass_by_value`
Aug 30 23:32:22.172 INFO kablam!   --> examples/permanent_error.rs:10:9
Aug 30 23:32:22.172 INFO kablam!    |
Aug 30 23:32:22.172 INFO kablam! 10 | #[allow(needless_pass_by_value)]
Aug 30 23:32:22.172 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^
Aug 30 23:32:22.172 INFO kablam!    |
Aug 30 23:32:22.172 INFO kablam!    = note: #[warn(unknown_lints)] on by default
Aug 30 23:32:22.172 INFO kablam! 
Aug 30 23:32:28.570 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 8.31s
Aug 30 23:32:28.587 INFO kablam! su: No module specific data is present
Aug 30 23:32:29.130 INFO running `"docker" "rm" "-f" "1eca9dbaab16657654a07353f82b61f44590bc6cc9d1d206a991349cf6ab9174"`
Aug 30 23:32:29.283 INFO blam! 1eca9dbaab16657654a07353f82b61f44590bc6cc9d1d206a991349cf6ab9174