Dec 19 19:36:16.612 INFO checking brain-lang/brain against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 19:36:16.612 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/brain-lang/brain:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 19:36:16.929 INFO [stdout] dcb8290cea2658fc853e236ba6b36fea2c8d3006520706d7c54f04f39433f8c4
Dec 19 19:36:16.931 INFO running `"docker" "start" "-a" "dcb8290cea2658fc853e236ba6b36fea2c8d3006520706d7c54f04f39433f8c4"`
Dec 19 19:36:18.649 INFO [stderr]     Checking brain v0.1.2 (/opt/crater/workdir)
Dec 19 19:36:19.328 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 19:36:19.328 INFO [stderr]    --> src/core/primitives/boolean.rs:212:17
Dec 19 19:36:19.328 INFO [stderr]     |
Dec 19 19:36:19.328 INFO [stderr] 212 |                 /// Thanks to certain properties of booleans, we can evaluate certain things during
Dec 19 19:36:19.328 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:36:19.328 INFO [stderr]     |
Dec 19 19:36:19.328 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Dec 19 19:36:19.328 INFO [stderr] 
Dec 19 19:36:19.328 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 19:36:19.328 INFO [stderr]    --> src/core/primitives/boolean.rs:359:17
Dec 19 19:36:19.328 INFO [stderr]     |
Dec 19 19:36:19.328 INFO [stderr] 359 |                 /// Thanks to certain properties of booleans, we can evaluate certain things during
Dec 19 19:36:19.328 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:36:19.328 INFO [stderr] 
Dec 19 19:36:19.328 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 19:36:19.328 INFO [stderr]    --> src/core/primitives/boolean.rs:513:17
Dec 19 19:36:19.328 INFO [stderr]     |
Dec 19 19:36:19.328 INFO [stderr] 513 |                 /// Thanks to certain properties of booleans, we can evaluate certain things during
Dec 19 19:36:19.328 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:36:19.328 INFO [stderr] 
Dec 19 19:36:19.328 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 19:36:19.328 INFO [stderr]    --> src/core/primitives/boolean.rs:641:17
Dec 19 19:36:19.328 INFO [stderr]     |
Dec 19 19:36:19.328 INFO [stderr] 641 |                 /// Thanks to certain properties of booleans, we can evaluate certain things during
Dec 19 19:36:19.328 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:36:19.328 INFO [stderr] 
Dec 19 19:36:19.453 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 19:36:19.453 INFO [stderr]    --> src/core/primitives/boolean.rs:212:17
Dec 19 19:36:19.453 INFO [stderr]     |
Dec 19 19:36:19.453 INFO [stderr] 212 |                 /// Thanks to certain properties of booleans, we can evaluate certain things during
Dec 19 19:36:19.460 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:36:19.460 INFO [stderr]     |
Dec 19 19:36:19.460 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Dec 19 19:36:19.460 INFO [stderr] 
Dec 19 19:36:19.460 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 19:36:19.460 INFO [stderr]    --> src/core/primitives/boolean.rs:359:17
Dec 19 19:36:19.460 INFO [stderr]     |
Dec 19 19:36:19.460 INFO [stderr] 359 |                 /// Thanks to certain properties of booleans, we can evaluate certain things during
Dec 19 19:36:19.460 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:36:19.460 INFO [stderr] 
Dec 19 19:36:19.460 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 19:36:19.460 INFO [stderr]    --> src/core/primitives/boolean.rs:513:17
Dec 19 19:36:19.460 INFO [stderr]     |
Dec 19 19:36:19.460 INFO [stderr] 513 |                 /// Thanks to certain properties of booleans, we can evaluate certain things during
Dec 19 19:36:19.460 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:36:19.460 INFO [stderr] 
Dec 19 19:36:19.460 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 19:36:19.460 INFO [stderr]    --> src/core/primitives/boolean.rs:641:17
Dec 19 19:36:19.460 INFO [stderr]     |
Dec 19 19:36:19.460 INFO [stderr] 641 |                 /// Thanks to certain properties of booleans, we can evaluate certain things during
Dec 19 19:36:19.460 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:36:19.460 INFO [stderr] 
Dec 19 19:36:22.097 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.49s
Dec 19 19:36:22.522 INFO running `"docker" "inspect" "dcb8290cea2658fc853e236ba6b36fea2c8d3006520706d7c54f04f39433f8c4"`
Dec 19 19:36:22.684 INFO running `"docker" "rm" "-f" "dcb8290cea2658fc853e236ba6b36fea2c8d3006520706d7c54f04f39433f8c4"`
Dec 19 19:36:22.868 INFO [stdout] dcb8290cea2658fc853e236ba6b36fea2c8d3006520706d7c54f04f39433f8c4