Sep 04 08:02:45.122 INFO checking rust-mpfr-0.1.7 against master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8 for pr-53913
Sep 04 08:02:45.122 INFO running: cargo +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets
Sep 04 08:02:45.123 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53913/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-2/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 08:02:45.257 INFO blam! 0d27d3a3a1bc8f70be54ca4bb7dc110878068e1fb8216e30048e8edfd85e59cf
Sep 04 08:02:45.259 INFO running `"docker" "start" "-a" "0d27d3a3a1bc8f70be54ca4bb7dc110878068e1fb8216e30048e8edfd85e59cf"`
Sep 04 08:02:46.106 INFO kablam!     Checking rust-mpfr v0.1.7 (file:///source)
Sep 04 08:02:46.957 INFO kablam! warning: unused arithmetic operation which must be used
Sep 04 08:02:46.957 INFO kablam!   --> src/test.rs:42:5
Sep 04 08:02:46.957 INFO kablam!    |
Sep 04 08:02:46.957 INFO kablam! 42 |     x / y;
Sep 04 08:02:46.957 INFO kablam!    |     ^^^^^
Sep 04 08:02:46.957 INFO kablam!    |
Sep 04 08:02:46.957 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 04 08:02:46.958 INFO kablam! 
Sep 04 08:02:46.978 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
Sep 04 08:02:46.982 INFO kablam! su: No module specific data is present
Sep 04 08:02:47.438 INFO running `"docker" "rm" "-f" "0d27d3a3a1bc8f70be54ca4bb7dc110878068e1fb8216e30048e8edfd85e59cf"`
Sep 04 08:02:47.521 INFO blam! 0d27d3a3a1bc8f70be54ca4bb7dc110878068e1fb8216e30048e8edfd85e59cf