Nov 01 23:49:21.247 INFO checking discard-1.0.4 against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 23:49:21.249 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-2/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 23:49:21.705 INFO blam! 602c98c77601832ac5a5c1f95a2c2f82f28702b28d3fdc107ab529503b8297ef
Nov 01 23:49:21.713 INFO running `"docker" "start" "-a" "602c98c77601832ac5a5c1f95a2c2f82f28702b28d3fdc107ab529503b8297ef"`
Nov 01 23:49:22.621 INFO kablam! usermod: no changes
Nov 01 23:49:22.690 INFO kablam!     Checking discard v1.0.4 (/source)
Nov 01 23:49:24.100 INFO kablam! warning: unused `DiscardOnDrop` that must be used
Nov 01 23:49:24.100 INFO kablam!    --> src/lib.rs:261:9
Nov 01 23:49:24.100 INFO kablam!     |
Nov 01 23:49:24.100 INFO kablam! 261 |         DiscardOnDrop::new(Foo::new());
Nov 01 23:49:24.100 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 23:49:24.100 INFO kablam!     |
Nov 01 23:49:24.100 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 01 23:49:24.100 INFO kablam!     = note: 
Nov 01 23:49:24.100 INFO kablam!             The DiscardOnDrop is unused, which causes it to be immediately discarded.
Nov 01 23:49:24.100 INFO kablam!             You probably don't want that to happen.
Nov 01 23:49:24.100 INFO kablam!             
Nov 01 23:49:24.100 INFO kablam!             How to fix this:
Nov 01 23:49:24.100 INFO kablam!             
Nov 01 23:49:24.100 INFO kablam!               * Store the DiscardOnDrop in a variable or data structure.
Nov 01 23:49:24.100 INFO kablam!             
Nov 01 23:49:24.100 INFO kablam!               * Or use the DiscardOnDrop::leak function which will cause it to not be
Nov 01 23:49:24.100 INFO kablam!                 discarded (this *will* leak memory!).
Nov 01 23:49:24.100 INFO kablam!             
Nov 01 23:49:24.100 INFO kablam!             See the DiscardOnDrop documentation for more details.
Nov 01 23:49:24.100 INFO kablam! 
Nov 01 23:49:24.100 INFO kablam! warning: unused `DiscardOnDrop` that must be used
Nov 01 23:49:24.100 INFO kablam!    --> src/lib.rs:262:9
Nov 01 23:49:24.100 INFO kablam!     |
Nov 01 23:49:24.100 INFO kablam! 262 |         DiscardOnDrop::new(Foo::new());
Nov 01 23:49:24.100 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 23:49:24.100 INFO kablam!     |
Nov 01 23:49:24.100 INFO kablam!     = note: 
Nov 01 23:49:24.100 INFO kablam!             The DiscardOnDrop is unused, which causes it to be immediately discarded.
Nov 01 23:49:24.100 INFO kablam!             You probably don't want that to happen.
Nov 01 23:49:24.100 INFO kablam!             
Nov 01 23:49:24.100 INFO kablam!             How to fix this:
Nov 01 23:49:24.100 INFO kablam!             
Nov 01 23:49:24.100 INFO kablam!               * Store the DiscardOnDrop in a variable or data structure.
Nov 01 23:49:24.100 INFO kablam!             
Nov 01 23:49:24.100 INFO kablam!               * Or use the DiscardOnDrop::leak function which will cause it to not be
Nov 01 23:49:24.100 INFO kablam!                 discarded (this *will* leak memory!).
Nov 01 23:49:24.100 INFO kablam!             
Nov 01 23:49:24.100 INFO kablam!             See the DiscardOnDrop documentation for more details.
Nov 01 23:49:24.100 INFO kablam! 
Nov 01 23:49:24.128 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
Nov 01 23:49:24.130 INFO kablam! su: No module specific data is present
Nov 01 23:49:24.799 INFO running `"docker" "rm" "-f" "602c98c77601832ac5a5c1f95a2c2f82f28702b28d3fdc107ab529503b8297ef"`
Nov 01 23:49:25.183 INFO blam! 602c98c77601832ac5a5c1f95a2c2f82f28702b28d3fdc107ab529503b8297ef