Sep 02 16:18:51.382 INFO checking discard-1.0.3 against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 02 16:18:51.382 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 02 16:18:51.382 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-2/try#952c7dbfa2628309f557b367929ffc17af20b332:/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 +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 16:18:51.585 INFO blam! 32c152701c53a6babe8379ebb1c6eef25ce935a3e8bcdde74fa738cadd41877d
Sep 02 16:18:51.588 INFO running `"docker" "start" "-a" "32c152701c53a6babe8379ebb1c6eef25ce935a3e8bcdde74fa738cadd41877d"`
Sep 02 16:18:52.214 INFO kablam!     Checking discard v1.0.3 (file:///source)
Sep 02 16:18:53.136 INFO kablam! warning: unused `DiscardOnDrop` which must be used
Sep 02 16:18:53.136 INFO kablam!    --> src/lib.rs:251:9
Sep 02 16:18:53.136 INFO kablam!     |
Sep 02 16:18:53.136 INFO kablam! 251 |         DiscardOnDrop::new(Foo::new());
Sep 02 16:18:53.136 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 02 16:18:53.136 INFO kablam!     |
Sep 02 16:18:53.136 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 02 16:18:53.137 INFO kablam!     = note: 
Sep 02 16:18:53.137 INFO kablam!             
Sep 02 16:18:53.137 INFO kablam!                  The DiscardOnDrop is unused, which causes it to be immediately discarded.
Sep 02 16:18:53.137 INFO kablam!                  You probably don't want that to happen.
Sep 02 16:18:53.137 INFO kablam!             
Sep 02 16:18:53.137 INFO kablam!                  How to fix this:
Sep 02 16:18:53.137 INFO kablam!             
Sep 02 16:18:53.137 INFO kablam!                    * Store the DiscardOnDrop in a variable or data structure.
Sep 02 16:18:53.137 INFO kablam!             
Sep 02 16:18:53.137 INFO kablam!                    * Or use the DiscardOnDrop::leak function which will cause it to not be
Sep 02 16:18:53.137 INFO kablam!                      discarded (this *will* leak memory!).
Sep 02 16:18:53.137 INFO kablam!             
Sep 02 16:18:53.137 INFO kablam!                  See the documentation for more details.
Sep 02 16:18:53.137 INFO kablam!             
Sep 02 16:18:53.137 INFO kablam! 
Sep 02 16:18:53.153 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
Sep 02 16:18:53.155 INFO kablam! su: No module specific data is present
Sep 02 16:18:53.629 INFO running `"docker" "rm" "-f" "32c152701c53a6babe8379ebb1c6eef25ce935a3e8bcdde74fa738cadd41877d"`
Sep 02 16:18:53.763 INFO blam! 32c152701c53a6babe8379ebb1c6eef25ce935a3e8bcdde74fa738cadd41877d