Sep 02 16:24:00.604 INFO checking difference-2.0.0 against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 02 16:24:00.604 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 02 16:24:00.604 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-0/try#952c7dbfa2628309f557b367929ffc17af20b332:/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 +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 16:24:00.761 INFO blam! e005354b2329c0fcc4b17b26a28f119127746675cbcdf3afdc6b7843e9424c73
Sep 02 16:24:00.763 INFO running `"docker" "start" "-a" "e005354b2329c0fcc4b17b26a28f119127746675cbcdf3afdc6b7843e9424c73"`
Sep 02 16:24:01.344 INFO kablam!     Checking difference v2.0.0 (file:///source)
Sep 02 16:24:02.108 INFO kablam! warning: unknown lint: `needless_pass_by_value`
Sep 02 16:24:02.108 INFO kablam!    --> tests/quickcheck.rs:103:9
Sep 02 16:24:02.108 INFO kablam!     |
Sep 02 16:24:02.108 INFO kablam! 103 | #[allow(needless_pass_by_value)]
Sep 02 16:24:02.108 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^
Sep 02 16:24:02.108 INFO kablam!     |
Sep 02 16:24:02.108 INFO kablam!     = note: #[warn(unknown_lints)] on by default
Sep 02 16:24:02.108 INFO kablam! 
Sep 02 16:24:03.812 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.52s
Sep 02 16:24:03.818 INFO kablam! su: No module specific data is present
Sep 02 16:24:04.347 INFO running `"docker" "rm" "-f" "e005354b2329c0fcc4b17b26a28f119127746675cbcdf3afdc6b7843e9424c73"`
Sep 02 16:24:04.509 INFO blam! e005354b2329c0fcc4b17b26a28f119127746675cbcdf3afdc6b7843e9424c73