Sep 20 02:45:19.835 INFO checking discard-1.0.3 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 20 02:45:19.835 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 20 02:45:19.835 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-0/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/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 +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 02:45:20.131 INFO blam! 010a343fdc3307e8e50be0087915d066f9b51f7b9e700c6a6a4996d9a5e93129
Sep 20 02:45:20.132 INFO running `"docker" "start" "-a" "010a343fdc3307e8e50be0087915d066f9b51f7b9e700c6a6a4996d9a5e93129"`
Sep 20 02:45:20.906 INFO kablam! usermod: no changes
Sep 20 02:45:20.937 INFO kablam!     Checking discard v1.0.3 (/source)
Sep 20 02:45:21.353 INFO kablam! warning: unused `DiscardOnDrop` which must be used
Sep 20 02:45:21.353 INFO kablam!    --> src/lib.rs:251:9
Sep 20 02:45:21.353 INFO kablam!     |
Sep 20 02:45:21.353 INFO kablam! 251 |         DiscardOnDrop::new(Foo::new());
Sep 20 02:45:21.353 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 02:45:21.353 INFO kablam!     |
Sep 20 02:45:21.353 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 20 02:45:21.353 INFO kablam!     = note: 
Sep 20 02:45:21.353 INFO kablam!             
Sep 20 02:45:21.353 INFO kablam!                  The DiscardOnDrop is unused, which causes it to be immediately discarded.
Sep 20 02:45:21.353 INFO kablam!                  You probably don't want that to happen.
Sep 20 02:45:21.353 INFO kablam!             
Sep 20 02:45:21.353 INFO kablam!                  How to fix this:
Sep 20 02:45:21.353 INFO kablam!             
Sep 20 02:45:21.353 INFO kablam!                    * Store the DiscardOnDrop in a variable or data structure.
Sep 20 02:45:21.353 INFO kablam!             
Sep 20 02:45:21.353 INFO kablam!                    * Or use the DiscardOnDrop::leak function which will cause it to not be
Sep 20 02:45:21.353 INFO kablam!                      discarded (this *will* leak memory!).
Sep 20 02:45:21.353 INFO kablam!             
Sep 20 02:45:21.353 INFO kablam!                  See the documentation for more details.
Sep 20 02:45:21.353 INFO kablam!             
Sep 20 02:45:21.353 INFO kablam! 
Sep 20 02:45:21.376 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
Sep 20 02:45:21.378 INFO kablam! su: No module specific data is present
Sep 20 02:45:22.289 INFO running `"docker" "rm" "-f" "010a343fdc3307e8e50be0087915d066f9b51f7b9e700c6a6a4996d9a5e93129"`
Sep 20 02:45:22.363 INFO blam! 010a343fdc3307e8e50be0087915d066f9b51f7b9e700c6a6a4996d9a5e93129