Sep 10 20:12:15.832 INFO checking discard-1.0.3 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 20:12:15.832 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 20:12:15.832 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-2/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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 +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 20:12:16.050 INFO blam! e7d5944738609e9fd4f19af4715291519e521ea990138181754e5abfb5826a96
Sep 10 20:12:16.052 INFO running `"docker" "start" "-a" "e7d5944738609e9fd4f19af4715291519e521ea990138181754e5abfb5826a96"`
Sep 10 20:12:17.641 INFO kablam! usermod: no changes
Sep 10 20:12:17.690 INFO kablam!     Checking discard v1.0.3 (file:///source)
Sep 10 20:12:18.518 INFO kablam! warning: unused `DiscardOnDrop` which must be used
Sep 10 20:12:18.518 INFO kablam!    --> src/lib.rs:251:9
Sep 10 20:12:18.518 INFO kablam!     |
Sep 10 20:12:18.518 INFO kablam! 251 |         DiscardOnDrop::new(Foo::new());
Sep 10 20:12:18.518 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 20:12:18.518 INFO kablam!     |
Sep 10 20:12:18.518 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 10 20:12:18.518 INFO kablam!     = note: 
Sep 10 20:12:18.518 INFO kablam!             
Sep 10 20:12:18.518 INFO kablam!                  The DiscardOnDrop is unused, which causes it to be immediately discarded.
Sep 10 20:12:18.518 INFO kablam!                  You probably don't want that to happen.
Sep 10 20:12:18.518 INFO kablam!             
Sep 10 20:12:18.518 INFO kablam!                  How to fix this:
Sep 10 20:12:18.518 INFO kablam!             
Sep 10 20:12:18.518 INFO kablam!                    * Store the DiscardOnDrop in a variable or data structure.
Sep 10 20:12:18.518 INFO kablam!             
Sep 10 20:12:18.518 INFO kablam!                    * Or use the DiscardOnDrop::leak function which will cause it to not be
Sep 10 20:12:18.518 INFO kablam!                      discarded (this *will* leak memory!).
Sep 10 20:12:18.518 INFO kablam!             
Sep 10 20:12:18.518 INFO kablam!                  See the documentation for more details.
Sep 10 20:12:18.518 INFO kablam!             
Sep 10 20:12:18.518 INFO kablam! 
Sep 10 20:12:18.554 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
Sep 10 20:12:18.554 INFO kablam! su: No module specific data is present
Sep 10 20:12:19.544 INFO running `"docker" "rm" "-f" "e7d5944738609e9fd4f19af4715291519e521ea990138181754e5abfb5826a96"`
Sep 10 20:12:19.655 INFO blam! e7d5944738609e9fd4f19af4715291519e521ea990138181754e5abfb5826a96