Sep 18 01:37:42.412 INFO checking discard-1.0.3 against master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690 for pr-54033
Sep 18 01:37:42.412 INFO running: cargo +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets
Sep 18 01:37:42.412 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54033/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-6/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/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 +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 18 01:37:42.828 INFO blam! 558386f4e23566ba2d72c265856b21a8936b845406145c0bc2d38096da8e8891
Sep 18 01:37:42.835 INFO running `"docker" "start" "-a" "558386f4e23566ba2d72c265856b21a8936b845406145c0bc2d38096da8e8891"`
Sep 18 01:37:43.993 INFO kablam! usermod: no changes
Sep 18 01:37:44.019 INFO kablam!     Checking discard v1.0.3 (/source)
Sep 18 01:37:44.454 INFO kablam! warning: unused `DiscardOnDrop` which must be used
Sep 18 01:37:44.454 INFO kablam!    --> src/lib.rs:251:9
Sep 18 01:37:44.454 INFO kablam!     |
Sep 18 01:37:44.454 INFO kablam! 251 |         DiscardOnDrop::new(Foo::new());
Sep 18 01:37:44.454 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 18 01:37:44.454 INFO kablam!     |
Sep 18 01:37:44.454 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 18 01:37:44.454 INFO kablam!     = note: 
Sep 18 01:37:44.454 INFO kablam!             
Sep 18 01:37:44.454 INFO kablam!                  The DiscardOnDrop is unused, which causes it to be immediately discarded.
Sep 18 01:37:44.454 INFO kablam!                  You probably don't want that to happen.
Sep 18 01:37:44.454 INFO kablam!             
Sep 18 01:37:44.454 INFO kablam!                  How to fix this:
Sep 18 01:37:44.454 INFO kablam!             
Sep 18 01:37:44.454 INFO kablam!                    * Store the DiscardOnDrop in a variable or data structure.
Sep 18 01:37:44.454 INFO kablam!             
Sep 18 01:37:44.455 INFO kablam!                    * Or use the DiscardOnDrop::leak function which will cause it to not be
Sep 18 01:37:44.455 INFO kablam!                      discarded (this *will* leak memory!).
Sep 18 01:37:44.455 INFO kablam!             
Sep 18 01:37:44.455 INFO kablam!                  See the documentation for more details.
Sep 18 01:37:44.455 INFO kablam!             
Sep 18 01:37:44.455 INFO kablam! 
Sep 18 01:37:44.486 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
Sep 18 01:37:44.486 INFO kablam! su: No module specific data is present
Sep 18 01:37:45.212 INFO running `"docker" "rm" "-f" "558386f4e23566ba2d72c265856b21a8936b845406145c0bc2d38096da8e8891"`
Sep 18 01:37:45.294 INFO blam! 558386f4e23566ba2d72c265856b21a8936b845406145c0bc2d38096da8e8891