Sep 14 10:01:26.573 INFO checking rust-mpfr-0.1.7 against try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0 for pr-53578-1
Sep 14 10:01:26.573 INFO running: cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets
Sep 14 10:01:26.573 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53578-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-0/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/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 +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 10:01:26.709 INFO blam! 49f1c7d1d29e1d818c9127b95675c3555b6d6b9d2b2e8ef410f34249d3102b5f
Sep 14 10:01:26.710 INFO running `"docker" "start" "-a" "49f1c7d1d29e1d818c9127b95675c3555b6d6b9d2b2e8ef410f34249d3102b5f"`
Sep 14 10:01:27.447 INFO kablam! usermod: no changes
Sep 14 10:01:27.489 INFO kablam!     Checking rust-mpfr v0.1.7 (file:///source)
Sep 14 10:01:28.016 INFO kablam! warning: unused arithmetic operation which must be used
Sep 14 10:01:28.016 INFO kablam!   --> src/test.rs:42:5
Sep 14 10:01:28.016 INFO kablam!    |
Sep 14 10:01:28.016 INFO kablam! 42 |     x / y;
Sep 14 10:01:28.016 INFO kablam!    |     ^^^^^
Sep 14 10:01:28.016 INFO kablam!    |
Sep 14 10:01:28.016 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 14 10:01:28.016 INFO kablam! 
Sep 14 10:01:28.033 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
Sep 14 10:01:28.035 INFO kablam! su: No module specific data is present
Sep 14 10:01:28.793 INFO running `"docker" "rm" "-f" "49f1c7d1d29e1d818c9127b95675c3555b6d6b9d2b2e8ef410f34249d3102b5f"`
Sep 14 10:01:28.906 INFO blam! 49f1c7d1d29e1d818c9127b95675c3555b6d6b9d2b2e8ef410f34249d3102b5f