Sep 04 19:38:44.931 INFO checking discard-1.0.3 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 19:38:44.931 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 19:38:44.931 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-1/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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 +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 19:38:45.118 INFO blam! fb3d7c7361ade514bc720533d3c03562cd33f3eaf320dbf98484db7942dd4f23
Sep 04 19:38:45.120 INFO running `"docker" "start" "-a" "fb3d7c7361ade514bc720533d3c03562cd33f3eaf320dbf98484db7942dd4f23"`
Sep 04 19:38:45.828 INFO kablam!     Checking discard v1.0.3 (file:///source)
Sep 04 19:38:46.742 INFO kablam! warning: unused `DiscardOnDrop` which must be used
Sep 04 19:38:46.742 INFO kablam!    --> src/lib.rs:251:9
Sep 04 19:38:46.742 INFO kablam!     |
Sep 04 19:38:46.742 INFO kablam! 251 |         DiscardOnDrop::new(Foo::new());
Sep 04 19:38:46.743 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 04 19:38:46.743 INFO kablam!     |
Sep 04 19:38:46.743 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 04 19:38:46.743 INFO kablam!     = note: 
Sep 04 19:38:46.743 INFO kablam!             
Sep 04 19:38:46.743 INFO kablam!                  The DiscardOnDrop is unused, which causes it to be immediately discarded.
Sep 04 19:38:46.743 INFO kablam!                  You probably don't want that to happen.
Sep 04 19:38:46.743 INFO kablam!             
Sep 04 19:38:46.743 INFO kablam!                  How to fix this:
Sep 04 19:38:46.743 INFO kablam!             
Sep 04 19:38:46.743 INFO kablam!                    * Store the DiscardOnDrop in a variable or data structure.
Sep 04 19:38:46.743 INFO kablam!             
Sep 04 19:38:46.743 INFO kablam!                    * Or use the DiscardOnDrop::leak function which will cause it to not be
Sep 04 19:38:46.743 INFO kablam!                      discarded (this *will* leak memory!).
Sep 04 19:38:46.743 INFO kablam!             
Sep 04 19:38:46.743 INFO kablam!                  See the documentation for more details.
Sep 04 19:38:46.743 INFO kablam!             
Sep 04 19:38:46.743 INFO kablam! 
Sep 04 19:38:46.760 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
Sep 04 19:38:46.763 INFO kablam! su: No module specific data is present
Sep 04 19:38:47.175 INFO running `"docker" "rm" "-f" "fb3d7c7361ade514bc720533d3c03562cd33f3eaf320dbf98484db7942dd4f23"`
Sep 04 19:38:47.323 INFO blam! fb3d7c7361ade514bc720533d3c03562cd33f3eaf320dbf98484db7942dd4f23