Sep 14 17:31:42.331 INFO checking discard-1.0.3 against try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0 for pr-53578-1
Sep 14 17:31:42.331 INFO running: cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets
Sep 14 17:31:42.331 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53578-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-3/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 17:31:42.452 INFO blam! 648fbaf36fc617f0d13e5d7da1fe51bd273532afc764c6fc83d245be22180b4e
Sep 14 17:31:42.453 INFO running `"docker" "start" "-a" "648fbaf36fc617f0d13e5d7da1fe51bd273532afc764c6fc83d245be22180b4e"`
Sep 14 17:31:43.562 INFO kablam! usermod: no changes
Sep 14 17:31:43.585 INFO kablam!     Checking discard v1.0.3 (file:///source)
Sep 14 17:31:43.997 INFO kablam! warning: unused `DiscardOnDrop` which must be used
Sep 14 17:31:43.997 INFO kablam!    --> src/lib.rs:251:9
Sep 14 17:31:43.997 INFO kablam!     |
Sep 14 17:31:43.997 INFO kablam! 251 |         DiscardOnDrop::new(Foo::new());
Sep 14 17:31:43.997 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 14 17:31:43.997 INFO kablam!     |
Sep 14 17:31:43.997 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 14 17:31:43.997 INFO kablam!     = note: 
Sep 14 17:31:43.997 INFO kablam!             
Sep 14 17:31:43.997 INFO kablam!                  The DiscardOnDrop is unused, which causes it to be immediately discarded.
Sep 14 17:31:43.997 INFO kablam!                  You probably don't want that to happen.
Sep 14 17:31:43.997 INFO kablam!             
Sep 14 17:31:43.997 INFO kablam!                  How to fix this:
Sep 14 17:31:43.997 INFO kablam!             
Sep 14 17:31:43.997 INFO kablam!                    * Store the DiscardOnDrop in a variable or data structure.
Sep 14 17:31:43.997 INFO kablam!             
Sep 14 17:31:43.997 INFO kablam!                    * Or use the DiscardOnDrop::leak function which will cause it to not be
Sep 14 17:31:43.997 INFO kablam!                      discarded (this *will* leak memory!).
Sep 14 17:31:43.997 INFO kablam!             
Sep 14 17:31:43.997 INFO kablam!                  See the documentation for more details.
Sep 14 17:31:43.997 INFO kablam!             
Sep 14 17:31:43.997 INFO kablam! 
Sep 14 17:31:44.016 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
Sep 14 17:31:44.021 INFO kablam! su: No module specific data is present
Sep 14 17:31:44.608 INFO running `"docker" "rm" "-f" "648fbaf36fc617f0d13e5d7da1fe51bd273532afc764c6fc83d245be22180b4e"`
Sep 14 17:31:44.665 INFO blam! 648fbaf36fc617f0d13e5d7da1fe51bd273532afc764c6fc83d245be22180b4e