Dec 11 21:30:48.355 INFO checking brain-lang/brain against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 21:30:48.355 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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"`
Dec 11 21:30:48.812 INFO [stdout] 71303575f20fa49b2e4bf6966f888ca253477c9101c005e8bf5acacc08e9eb37
Dec 11 21:30:48.820 INFO running `"docker" "start" "-a" "71303575f20fa49b2e4bf6966f888ca253477c9101c005e8bf5acacc08e9eb37"`
Dec 11 21:30:50.053 INFO [stderr] usermod: no changes
Dec 11 21:30:50.193 INFO [stderr]     Checking clap v2.24.2
Dec 11 21:30:55.975 INFO [stderr]     Checking brain v0.1.2 (/source)
Dec 11 21:30:57.504 INFO [stderr] warning: doc comment not used by rustdoc
Dec 11 21:30:57.504 INFO [stderr]    --> src/core/primitives/boolean.rs:212:17
Dec 11 21:30:57.504 INFO [stderr]     |
Dec 11 21:30:57.504 INFO [stderr] 212 |                 /// Thanks to certain properties of booleans, we can evaluate certain things during
Dec 11 21:30:57.504 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:30:57.504 INFO [stderr]     |
Dec 11 21:30:57.504 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Dec 11 21:30:57.504 INFO [stderr] 
Dec 11 21:30:57.504 INFO [stderr] warning: doc comment not used by rustdoc
Dec 11 21:30:57.504 INFO [stderr]    --> src/core/primitives/boolean.rs:359:17
Dec 11 21:30:57.504 INFO [stderr]     |
Dec 11 21:30:57.504 INFO [stderr] 359 |                 /// Thanks to certain properties of booleans, we can evaluate certain things during
Dec 11 21:30:57.504 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:30:57.504 INFO [stderr] 
Dec 11 21:30:57.504 INFO [stderr] warning: doc comment not used by rustdoc
Dec 11 21:30:57.504 INFO [stderr]    --> src/core/primitives/boolean.rs:513:17
Dec 11 21:30:57.504 INFO [stderr]     |
Dec 11 21:30:57.504 INFO [stderr] 513 |                 /// Thanks to certain properties of booleans, we can evaluate certain things during
Dec 11 21:30:57.504 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:30:57.504 INFO [stderr] 
Dec 11 21:30:57.504 INFO [stderr] warning: doc comment not used by rustdoc
Dec 11 21:30:57.504 INFO [stderr]    --> src/core/primitives/boolean.rs:641:17
Dec 11 21:30:57.504 INFO [stderr]     |
Dec 11 21:30:57.505 INFO [stderr] 641 |                 /// Thanks to certain properties of booleans, we can evaluate certain things during
Dec 11 21:30:57.505 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:30:57.505 INFO [stderr] 
Dec 11 21:30:57.712 INFO [stderr] warning: doc comment not used by rustdoc
Dec 11 21:30:57.712 INFO [stderr]    --> src/core/primitives/boolean.rs:212:17
Dec 11 21:30:57.712 INFO [stderr]     |
Dec 11 21:30:57.712 INFO [stderr] 212 |                 /// Thanks to certain properties of booleans, we can evaluate certain things during
Dec 11 21:30:57.712 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:30:57.720 INFO [stderr]     |
Dec 11 21:30:57.720 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Dec 11 21:30:57.720 INFO [stderr] 
Dec 11 21:30:57.720 INFO [stderr] warning: doc comment not used by rustdoc
Dec 11 21:30:57.720 INFO [stderr]    --> src/core/primitives/boolean.rs:359:17
Dec 11 21:30:57.720 INFO [stderr]     |
Dec 11 21:30:57.720 INFO [stderr] 359 |                 /// Thanks to certain properties of booleans, we can evaluate certain things during
Dec 11 21:30:57.720 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:30:57.720 INFO [stderr] 
Dec 11 21:30:57.720 INFO [stderr] warning: doc comment not used by rustdoc
Dec 11 21:30:57.720 INFO [stderr]    --> src/core/primitives/boolean.rs:513:17
Dec 11 21:30:57.720 INFO [stderr]     |
Dec 11 21:30:57.720 INFO [stderr] 513 |                 /// Thanks to certain properties of booleans, we can evaluate certain things during
Dec 11 21:30:57.720 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:30:57.720 INFO [stderr] 
Dec 11 21:30:57.720 INFO [stderr] warning: doc comment not used by rustdoc
Dec 11 21:30:57.720 INFO [stderr]    --> src/core/primitives/boolean.rs:641:17
Dec 11 21:30:57.720 INFO [stderr]     |
Dec 11 21:30:57.720 INFO [stderr] 641 |                 /// Thanks to certain properties of booleans, we can evaluate certain things during
Dec 11 21:30:57.720 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:30:57.720 INFO [stderr] 
Dec 11 21:31:02.364 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.29s
Dec 11 21:31:02.372 INFO [stderr] su: No module specific data is present
Dec 11 21:31:03.190 INFO running `"docker" "inspect" "71303575f20fa49b2e4bf6966f888ca253477c9101c005e8bf5acacc08e9eb37"`
Dec 11 21:31:03.552 INFO running `"docker" "rm" "-f" "71303575f20fa49b2e4bf6966f888ca253477c9101c005e8bf5acacc08e9eb37"`
Dec 11 21:31:03.956 INFO [stdout] 71303575f20fa49b2e4bf6966f888ca253477c9101c005e8bf5acacc08e9eb37