Aug 30 23:32:29.326 INFO checking backoff-0.1.2 against master#545f22340f72ee0efaf6463efb43a2840e3d35db for pr-53699
Aug 30 23:32:29.326 INFO running: cargo +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets
Aug 30 23:32:29.327 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53699/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53699/worker-2/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/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 +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 23:32:29.573 INFO blam! 361d2ea278ecb5750e41d9f610f746017a7257a475dd94d134cc70e59b375f6a
Aug 30 23:32:29.576 INFO running `"docker" "start" "-a" "361d2ea278ecb5750e41d9f610f746017a7257a475dd94d134cc70e59b375f6a"`
Aug 30 23:32:30.631 INFO kablam!     Checking backoff v0.1.2 (file:///source)
Aug 30 23:32:32.314 INFO kablam! warning: unknown lint: `needless_pass_by_value`
Aug 30 23:32:32.314 INFO kablam!   --> examples/permanent_error.rs:10:9
Aug 30 23:32:32.314 INFO kablam!    |
Aug 30 23:32:32.314 INFO kablam! 10 | #[allow(needless_pass_by_value)]
Aug 30 23:32:32.314 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^
Aug 30 23:32:32.314 INFO kablam!    |
Aug 30 23:32:32.314 INFO kablam!    = note: #[warn(unknown_lints)] on by default
Aug 30 23:32:32.314 INFO kablam! 
Aug 30 23:32:38.595 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 8.15s
Aug 30 23:32:38.607 INFO kablam! su: No module specific data is present
Aug 30 23:32:39.085 INFO running `"docker" "rm" "-f" "361d2ea278ecb5750e41d9f610f746017a7257a475dd94d134cc70e59b375f6a"`
Aug 30 23:32:39.243 INFO blam! 361d2ea278ecb5750e41d9f610f746017a7257a475dd94d134cc70e59b375f6a