Sep 04 00:12:22.333 INFO checking topdown-rs-0.3.3 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 00:12:22.333 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 00:12:22.334 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-3/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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=500" "-e" "CMD=cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 00:12:22.486 INFO blam! 4f6478255b40c945d43819f2a795a6e8c32cd693d9484b57a6840b3e7145eb8a
Sep 04 00:12:22.487 INFO running `"docker" "start" "-a" "4f6478255b40c945d43819f2a795a6e8c32cd693d9484b57a6840b3e7145eb8a"`
Sep 04 00:12:23.212 INFO kablam!     Checking topdown-rs v0.3.3 (file:///source)
Sep 04 00:12:23.799 INFO kablam! error[E0392]: parameter `'a` is never used
Sep 04 00:12:23.799 INFO kablam!   --> src/chainl.rs:54:15
Sep 04 00:12:23.799 INFO kablam!    |
Sep 04 00:12:23.800 INFO kablam! 54 |     struct Op<'a>;
Sep 04 00:12:23.800 INFO kablam!    |               ^^ unused type parameter
Sep 04 00:12:23.800 INFO kablam!    |
Sep 04 00:12:23.800 INFO kablam!    = help: consider removing `'a` or using a marker such as `std::marker::PhantomData`
Sep 04 00:12:23.800 INFO kablam! 
Sep 04 00:12:23.801 INFO kablam! error[E0392]: parameter `'a` is never used
Sep 04 00:12:23.801 INFO kablam!   --> src/chainr.rs:47:15
Sep 04 00:12:23.801 INFO kablam!    |
Sep 04 00:12:23.801 INFO kablam! 47 |     struct Op<'a>;
Sep 04 00:12:23.801 INFO kablam!    |               ^^ unused type parameter
Sep 04 00:12:23.801 INFO kablam!    |
Sep 04 00:12:23.802 INFO kablam!    = help: consider removing `'a` or using a marker such as `std::marker::PhantomData`
Sep 04 00:12:23.802 INFO kablam! 
Sep 04 00:12:23.838 INFO kablam! error: aborting due to 2 previous errors
Sep 04 00:12:23.839 INFO kablam! 
Sep 04 00:12:23.839 INFO kablam! For more information about this error, try `rustc --explain E0392`.
Sep 04 00:12:23.849 INFO kablam! error: Could not compile `topdown-rs`.
Sep 04 00:12:23.849 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 04 00:12:24.024 INFO kablam! error: build failed
Sep 04 00:12:24.025 INFO kablam! su: No module specific data is present
Sep 04 00:12:24.475 INFO running `"docker" "rm" "-f" "4f6478255b40c945d43819f2a795a6e8c32cd693d9484b57a6840b3e7145eb8a"`
Sep 04 00:12:24.632 INFO blam! 4f6478255b40c945d43819f2a795a6e8c32cd693d9484b57a6840b3e7145eb8a