Sep 04 22:29:27.320 INFO checking discard-1.0.3 against master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8 for pr-53913
Sep 04 22:29:27.320 INFO running: cargo +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets
Sep 04 22:29:27.320 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53913/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-2/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/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 +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 22:29:27.526 INFO blam! 49304e4245310f516154628002a1b1d1245d2211f18a5c37227db0fad424dc1f
Sep 04 22:29:27.529 INFO running `"docker" "start" "-a" "49304e4245310f516154628002a1b1d1245d2211f18a5c37227db0fad424dc1f"`
Sep 04 22:29:28.213 INFO kablam!     Checking discard v1.0.3 (file:///source)
Sep 04 22:29:29.180 INFO kablam! warning: unused `DiscardOnDrop` which must be used
Sep 04 22:29:29.180 INFO kablam!    --> src/lib.rs:251:9
Sep 04 22:29:29.180 INFO kablam!     |
Sep 04 22:29:29.180 INFO kablam! 251 |         DiscardOnDrop::new(Foo::new());
Sep 04 22:29:29.180 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 04 22:29:29.180 INFO kablam!     |
Sep 04 22:29:29.180 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 04 22:29:29.180 INFO kablam!     = note: 
Sep 04 22:29:29.180 INFO kablam!             
Sep 04 22:29:29.180 INFO kablam!                  The DiscardOnDrop is unused, which causes it to be immediately discarded.
Sep 04 22:29:29.180 INFO kablam!                  You probably don't want that to happen.
Sep 04 22:29:29.180 INFO kablam!             
Sep 04 22:29:29.180 INFO kablam!                  How to fix this:
Sep 04 22:29:29.180 INFO kablam!             
Sep 04 22:29:29.180 INFO kablam!                    * Store the DiscardOnDrop in a variable or data structure.
Sep 04 22:29:29.180 INFO kablam!             
Sep 04 22:29:29.180 INFO kablam!                    * Or use the DiscardOnDrop::leak function which will cause it to not be
Sep 04 22:29:29.180 INFO kablam!                      discarded (this *will* leak memory!).
Sep 04 22:29:29.180 INFO kablam!             
Sep 04 22:29:29.181 INFO kablam!                  See the documentation for more details.
Sep 04 22:29:29.181 INFO kablam!             
Sep 04 22:29:29.181 INFO kablam! 
Sep 04 22:29:29.202 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
Sep 04 22:29:29.205 INFO kablam! su: No module specific data is present
Sep 04 22:29:29.726 INFO running `"docker" "rm" "-f" "49304e4245310f516154628002a1b1d1245d2211f18a5c37227db0fad424dc1f"`
Sep 04 22:29:29.866 INFO blam! 49304e4245310f516154628002a1b1d1245d2211f18a5c37227db0fad424dc1f