Aug 30 23:56:45.572 INFO checking backoff-0.1.2 against master#ede55518431154bc761f7b2438cce9078c162700 for pr-53707
Aug 30 23:56:45.573 INFO running: cargo +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets
Aug 30 23:56:45.573 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53707/master#ede55518431154bc761f7b2438cce9078c162700:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-3/master#ede55518431154bc761f7b2438cce9078c162700:/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 +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 23:56:45.832 INFO blam! b7cdd0de21c1a9538366eef2a5c4ff7cf61a465632ba873beb6c23e4524e3a2c
Aug 30 23:56:45.833 INFO running `"docker" "start" "-a" "b7cdd0de21c1a9538366eef2a5c4ff7cf61a465632ba873beb6c23e4524e3a2c"`
Aug 30 23:56:46.856 INFO kablam!     Checking backoff v0.1.2 (file:///source)
Aug 30 23:56:48.454 INFO kablam! warning: unknown lint: `needless_pass_by_value`
Aug 30 23:56:48.455 INFO kablam!   --> examples/permanent_error.rs:10:9
Aug 30 23:56:48.455 INFO kablam!    |
Aug 30 23:56:48.455 INFO kablam! 10 | #[allow(needless_pass_by_value)]
Aug 30 23:56:48.455 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^
Aug 30 23:56:48.464 INFO kablam!    |
Aug 30 23:56:48.464 INFO kablam!    = note: #[warn(unknown_lints)] on by default
Aug 30 23:56:48.464 INFO kablam! 
Aug 30 23:56:53.985 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 7.28s
Aug 30 23:56:53.994 INFO kablam! su: No module specific data is present
Aug 30 23:56:54.621 INFO running `"docker" "rm" "-f" "b7cdd0de21c1a9538366eef2a5c4ff7cf61a465632ba873beb6c23e4524e3a2c"`
Aug 30 23:56:54.706 INFO blam! b7cdd0de21c1a9538366eef2a5c4ff7cf61a465632ba873beb6c23e4524e3a2c