Sep 20 04:26:55.667 INFO checking discard-1.0.3 against master#1e21c9a297a9fe668d62887a3a6a4add8e717b17 for pr-54352
Sep 20 04:26:55.667 INFO running: cargo +1e21c9a297a9fe668d62887a3a6a4add8e717b17-alt check --frozen --all --all-targets
Sep 20 04:26:55.667 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54352/master#1e21c9a297a9fe668d62887a3a6a4add8e717b17:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54352/worker-0/master#1e21c9a297a9fe668d62887a3a6a4add8e717b17:/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 +1e21c9a297a9fe668d62887a3a6a4add8e717b17-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 04:26:55.887 INFO blam! 203545e3a1913c6a24c5fbbb342ea0f6adc0a1103d5a5a57d5cfc1b41a329b99
Sep 20 04:26:55.890 INFO running `"docker" "start" "-a" "203545e3a1913c6a24c5fbbb342ea0f6adc0a1103d5a5a57d5cfc1b41a329b99"`
Sep 20 04:26:57.729 INFO kablam! usermod: no changes
Sep 20 04:26:57.773 INFO kablam!     Checking discard v1.0.3 (/source)
Sep 20 04:26:58.510 INFO kablam! warning: unused `DiscardOnDrop` which must be used
Sep 20 04:26:58.510 INFO kablam!    --> src/lib.rs:251:9
Sep 20 04:26:58.510 INFO kablam!     |
Sep 20 04:26:58.510 INFO kablam! 251 |         DiscardOnDrop::new(Foo::new());
Sep 20 04:26:58.510 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 04:26:58.510 INFO kablam!     |
Sep 20 04:26:58.510 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 20 04:26:58.510 INFO kablam!     = note: 
Sep 20 04:26:58.510 INFO kablam!             
Sep 20 04:26:58.510 INFO kablam!                  The DiscardOnDrop is unused, which causes it to be immediately discarded.
Sep 20 04:26:58.510 INFO kablam!                  You probably don't want that to happen.
Sep 20 04:26:58.510 INFO kablam!             
Sep 20 04:26:58.510 INFO kablam!                  How to fix this:
Sep 20 04:26:58.510 INFO kablam!             
Sep 20 04:26:58.510 INFO kablam!                    * Store the DiscardOnDrop in a variable or data structure.
Sep 20 04:26:58.510 INFO kablam!             
Sep 20 04:26:58.510 INFO kablam!                    * Or use the DiscardOnDrop::leak function which will cause it to not be
Sep 20 04:26:58.510 INFO kablam!                      discarded (this *will* leak memory!).
Sep 20 04:26:58.510 INFO kablam!             
Sep 20 04:26:58.510 INFO kablam!                  See the documentation for more details.
Sep 20 04:26:58.510 INFO kablam!             
Sep 20 04:26:58.510 INFO kablam! 
Sep 20 04:26:58.545 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
Sep 20 04:26:58.546 INFO kablam! su: No module specific data is present
Sep 20 04:26:59.330 INFO running `"docker" "rm" "-f" "203545e3a1913c6a24c5fbbb342ea0f6adc0a1103d5a5a57d5cfc1b41a329b99"`
Sep 20 04:26:59.418 INFO blam! 203545e3a1913c6a24c5fbbb342ea0f6adc0a1103d5a5a57d5cfc1b41a329b99