Sep 04 22:34:40.667 INFO checking difference-2.0.0 against master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8 for pr-53913
Sep 04 22:34:40.667 INFO running: cargo +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets
Sep 04 22:34:40.667 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53913/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-3/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/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 +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 22:34:40.891 INFO blam! b4a0e8ebe0288d76e32e43b30fee910ed4858cc013bef435b6a16870a20c852f
Sep 04 22:34:40.893 INFO running `"docker" "start" "-a" "b4a0e8ebe0288d76e32e43b30fee910ed4858cc013bef435b6a16870a20c852f"`
Sep 04 22:34:41.656 INFO kablam!     Checking difference v2.0.0 (file:///source)
Sep 04 22:34:42.722 INFO kablam! warning: unknown lint: `needless_pass_by_value`
Sep 04 22:34:42.722 INFO kablam!    --> tests/quickcheck.rs:103:9
Sep 04 22:34:42.722 INFO kablam!     |
Sep 04 22:34:42.722 INFO kablam! 103 | #[allow(needless_pass_by_value)]
Sep 04 22:34:42.722 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^
Sep 04 22:34:42.723 INFO kablam!     |
Sep 04 22:34:42.723 INFO kablam!     = note: #[warn(unknown_lints)] on by default
Sep 04 22:34:42.724 INFO kablam! 
Sep 04 22:34:44.954 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.35s
Sep 04 22:34:44.960 INFO kablam! su: No module specific data is present
Sep 04 22:34:45.449 INFO running `"docker" "rm" "-f" "b4a0e8ebe0288d76e32e43b30fee910ed4858cc013bef435b6a16870a20c852f"`
Sep 04 22:34:45.544 INFO blam! b4a0e8ebe0288d76e32e43b30fee910ed4858cc013bef435b6a16870a20c852f