Nov 01 23:49:21.664 INFO checking discard-1.0.4 against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538
Nov 01 23:49:21.664 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-6/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55538/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +05812fa8c588473f03e3fa7cf59cd84f4f37c715-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 01 23:49:21.968 INFO blam! db21f9f6c3d498ef62790586f5c6d168c0a6482c0c309c9749471460c1125b48
Nov 01 23:49:21.970 INFO running `"docker" "start" "-a" "db21f9f6c3d498ef62790586f5c6d168c0a6482c0c309c9749471460c1125b48"`
Nov 01 23:49:22.973 INFO kablam! usermod: no changes
Nov 01 23:49:23.028 INFO kablam!     Checking discard v1.0.4 (/source)
Nov 01 23:49:24.141 INFO kablam! warning: unused `DiscardOnDrop` that must be used
Nov 01 23:49:24.141 INFO kablam!    --> src/lib.rs:261:9
Nov 01 23:49:24.141 INFO kablam!     |
Nov 01 23:49:24.141 INFO kablam! 261 |         DiscardOnDrop::new(Foo::new());
Nov 01 23:49:24.141 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 23:49:24.141 INFO kablam!     |
Nov 01 23:49:24.141 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 01 23:49:24.149 INFO kablam!     = note: 
Nov 01 23:49:24.149 INFO kablam!             The DiscardOnDrop is unused, which causes it to be immediately discarded.
Nov 01 23:49:24.149 INFO kablam!             You probably don't want that to happen.
Nov 01 23:49:24.149 INFO kablam!             
Nov 01 23:49:24.149 INFO kablam!             How to fix this:
Nov 01 23:49:24.149 INFO kablam!             
Nov 01 23:49:24.149 INFO kablam!               * Store the DiscardOnDrop in a variable or data structure.
Nov 01 23:49:24.149 INFO kablam!             
Nov 01 23:49:24.149 INFO kablam!               * Or use the DiscardOnDrop::leak function which will cause it to not be
Nov 01 23:49:24.149 INFO kablam!                 discarded (this *will* leak memory!).
Nov 01 23:49:24.149 INFO kablam!             
Nov 01 23:49:24.149 INFO kablam!             See the DiscardOnDrop documentation for more details.
Nov 01 23:49:24.149 INFO kablam! 
Nov 01 23:49:24.149 INFO kablam! warning: unused `DiscardOnDrop` that must be used
Nov 01 23:49:24.149 INFO kablam!    --> src/lib.rs:262:9
Nov 01 23:49:24.149 INFO kablam!     |
Nov 01 23:49:24.149 INFO kablam! 262 |         DiscardOnDrop::new(Foo::new());
Nov 01 23:49:24.149 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 23:49:24.149 INFO kablam!     |
Nov 01 23:49:24.149 INFO kablam!     = note: 
Nov 01 23:49:24.149 INFO kablam!             The DiscardOnDrop is unused, which causes it to be immediately discarded.
Nov 01 23:49:24.149 INFO kablam!             You probably don't want that to happen.
Nov 01 23:49:24.149 INFO kablam!             
Nov 01 23:49:24.149 INFO kablam!             How to fix this:
Nov 01 23:49:24.150 INFO kablam!             
Nov 01 23:49:24.150 INFO kablam!               * Store the DiscardOnDrop in a variable or data structure.
Nov 01 23:49:24.150 INFO kablam!             
Nov 01 23:49:24.150 INFO kablam!               * Or use the DiscardOnDrop::leak function which will cause it to not be
Nov 01 23:49:24.150 INFO kablam!                 discarded (this *will* leak memory!).
Nov 01 23:49:24.150 INFO kablam!             
Nov 01 23:49:24.150 INFO kablam!             See the DiscardOnDrop documentation for more details.
Nov 01 23:49:24.150 INFO kablam! 
Nov 01 23:49:24.180 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
Nov 01 23:49:24.180 INFO kablam! su: No module specific data is present
Nov 01 23:49:24.761 INFO running `"docker" "rm" "-f" "db21f9f6c3d498ef62790586f5c6d168c0a6482c0c309c9749471460c1125b48"`
Nov 01 23:49:25.064 INFO blam! db21f9f6c3d498ef62790586f5c6d168c0a6482c0c309c9749471460c1125b48