Sep 02 01:32:06.515 INFO checking rust-mpfr-0.1.7 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 01:32:06.515 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 01:32:06.515 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-0/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 01:32:06.694 INFO blam! e64e0c1850b1f3f2d142fc0a7653aeb58d28eb1cbeed44782fb393e4bf69d5f8
Sep 02 01:32:06.695 INFO running `"docker" "start" "-a" "e64e0c1850b1f3f2d142fc0a7653aeb58d28eb1cbeed44782fb393e4bf69d5f8"`
Sep 02 01:32:07.426 INFO kablam!     Checking rust-mpfr v0.1.7 (file:///source)
Sep 02 01:32:08.527 INFO kablam! warning: unused arithmetic operation which must be used
Sep 02 01:32:08.527 INFO kablam!   --> src/test.rs:42:5
Sep 02 01:32:08.527 INFO kablam!    |
Sep 02 01:32:08.527 INFO kablam! 42 |     x / y;
Sep 02 01:32:08.527 INFO kablam!    |     ^^^^^
Sep 02 01:32:08.527 INFO kablam!    |
Sep 02 01:32:08.527 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 02 01:32:08.527 INFO kablam! 
Sep 02 01:32:08.556 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
Sep 02 01:32:08.558 INFO kablam! su: No module specific data is present
Sep 02 01:32:08.965 INFO running `"docker" "rm" "-f" "e64e0c1850b1f3f2d142fc0a7653aeb58d28eb1cbeed44782fb393e4bf69d5f8"`
Sep 02 01:32:09.063 INFO blam! e64e0c1850b1f3f2d142fc0a7653aeb58d28eb1cbeed44782fb393e4bf69d5f8