Sep 10 19:05:02.919 INFO checking file_limit-0.0.2 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 19:05:02.919 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 19:05:02.919 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-6/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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=1000" "-e" "CMD=cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 19:05:03.083 INFO blam! 89dcc61ea6112bf47ca539608e9799e4dc819d8dc85a59a43c351b709f57a363
Sep 10 19:05:03.085 INFO running `"docker" "start" "-a" "89dcc61ea6112bf47ca539608e9799e4dc819d8dc85a59a43c351b709f57a363"`
Sep 10 19:05:04.021 INFO kablam! usermod: no changes
Sep 10 19:05:04.045 INFO kablam!     Checking file_limit v0.0.2 (file:///source)
Sep 10 19:05:04.395 INFO kablam! warning: unused variable: `err`
Sep 10 19:05:04.395 INFO kablam!   --> src/lib.rs:82:13
Sep 10 19:05:04.395 INFO kablam!    |
Sep 10 19:05:04.395 INFO kablam! 82 |         Err(err) => assert!(false),
Sep 10 19:05:04.395 INFO kablam!    |             ^^^ help: consider using `_err` instead
Sep 10 19:05:04.395 INFO kablam!    |
Sep 10 19:05:04.395 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 10 19:05:04.395 INFO kablam! 
Sep 10 19:05:04.417 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
Sep 10 19:05:04.419 INFO kablam! su: No module specific data is present
Sep 10 19:05:04.853 INFO running `"docker" "rm" "-f" "89dcc61ea6112bf47ca539608e9799e4dc819d8dc85a59a43c351b709f57a363"`
Sep 10 19:05:04.910 INFO blam! 89dcc61ea6112bf47ca539608e9799e4dc819d8dc85a59a43c351b709f57a363