Sep 02 16:18:51.463 INFO checking discard-1.0.3 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 16:18:51.463 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 16:18:51.463 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-1/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 16:18:51.658 INFO blam! de137c68673fba841d44f2eb39e53053cfc94cd97d2106b88397707b3fb191a9
Sep 02 16:18:51.660 INFO running `"docker" "start" "-a" "de137c68673fba841d44f2eb39e53053cfc94cd97d2106b88397707b3fb191a9"`
Sep 02 16:18:52.377 INFO kablam!     Checking discard v1.0.3 (file:///source)
Sep 02 16:18:53.393 INFO kablam! warning: unused `DiscardOnDrop` which must be used
Sep 02 16:18:53.393 INFO kablam!    --> src/lib.rs:251:9
Sep 02 16:18:53.393 INFO kablam!     |
Sep 02 16:18:53.393 INFO kablam! 251 |         DiscardOnDrop::new(Foo::new());
Sep 02 16:18:53.393 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 02 16:18:53.393 INFO kablam!     |
Sep 02 16:18:53.393 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 02 16:18:53.393 INFO kablam!     = note: 
Sep 02 16:18:53.393 INFO kablam!             
Sep 02 16:18:53.393 INFO kablam!                  The DiscardOnDrop is unused, which causes it to be immediately discarded.
Sep 02 16:18:53.393 INFO kablam!                  You probably don't want that to happen.
Sep 02 16:18:53.393 INFO kablam!             
Sep 02 16:18:53.393 INFO kablam!                  How to fix this:
Sep 02 16:18:53.393 INFO kablam!             
Sep 02 16:18:53.393 INFO kablam!                    * Store the DiscardOnDrop in a variable or data structure.
Sep 02 16:18:53.393 INFO kablam!             
Sep 02 16:18:53.393 INFO kablam!                    * Or use the DiscardOnDrop::leak function which will cause it to not be
Sep 02 16:18:53.393 INFO kablam!                      discarded (this *will* leak memory!).
Sep 02 16:18:53.393 INFO kablam!             
Sep 02 16:18:53.393 INFO kablam!                  See the documentation for more details.
Sep 02 16:18:53.394 INFO kablam!             
Sep 02 16:18:53.394 INFO kablam! 
Sep 02 16:18:53.410 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
Sep 02 16:18:53.413 INFO kablam! su: No module specific data is present
Sep 02 16:18:53.906 INFO running `"docker" "rm" "-f" "de137c68673fba841d44f2eb39e53053cfc94cd97d2106b88397707b3fb191a9"`
Sep 02 16:18:54.019 INFO blam! de137c68673fba841d44f2eb39e53053cfc94cd97d2106b88397707b3fb191a9