Sep 06 06:58:22.931 INFO checking fn_block-0.2.1 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 06:58:22.931 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 06:58:22.931 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-3/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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=1000" "-e" "CMD=cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 06:58:23.087 INFO blam! 9ceef9b08defd3382ef3d365d846607baebdf1534af6bf4d5d684e06daec308f
Sep 06 06:58:23.088 INFO running `"docker" "start" "-a" "9ceef9b08defd3382ef3d365d846607baebdf1534af6bf4d5d684e06daec308f"`
Sep 06 06:58:23.914 INFO kablam! usermod: no changes
Sep 06 06:58:24.118 INFO kablam!     Checking fn_block v0.2.1 (file:///source)
Sep 06 06:58:26.222 INFO kablam! warning: unused variable: `s`
Sep 06 06:58:26.222 INFO kablam!   --> benches/fn_block_benchmark.rs:10:9
Sep 06 06:58:26.222 INFO kablam!    |
Sep 06 06:58:26.222 INFO kablam! 10 |     let s = o.and_then(|st| st.get(0..3)).map(|st| st.to_lowercase());
Sep 06 06:58:26.222 INFO kablam!    |         ^ help: consider using `_s` instead
Sep 06 06:58:26.222 INFO kablam!    |
Sep 06 06:58:26.222 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 06 06:58:26.222 INFO kablam! 
Sep 06 06:58:26.222 INFO kablam! warning: unused variable: `s`
Sep 06 06:58:26.222 INFO kablam!   --> benches/fn_block_benchmark.rs:14:9
Sep 06 06:58:26.222 INFO kablam!    |
Sep 06 06:58:26.222 INFO kablam! 14 |     let s = (|| Some(o?.get(0..3)?.to_lowercase()))();
Sep 06 06:58:26.222 INFO kablam!    |         ^ help: consider using `_s` instead
Sep 06 06:58:26.222 INFO kablam! 
Sep 06 06:58:26.222 INFO kablam! warning: unused variable: `s`
Sep 06 06:58:26.222 INFO kablam!   --> benches/fn_block_benchmark.rs:18:9
Sep 06 06:58:26.222 INFO kablam!    |
Sep 06 06:58:26.222 INFO kablam! 18 |     let s = fn_expr!{ o?.get(0..3)?.to_lowercase().into_some() };
Sep 06 06:58:26.222 INFO kablam!    |         ^ help: consider using `_s` instead
Sep 06 06:58:26.222 INFO kablam! 
Sep 06 06:58:26.226 INFO kablam! warning: unused attribute
Sep 06 06:58:26.226 INFO kablam!  --> benches/fn_block_benchmark.rs:5:1
Sep 06 06:58:26.226 INFO kablam!   |
Sep 06 06:58:26.226 INFO kablam! 5 | #[macro_use]
Sep 06 06:58:26.226 INFO kablam!   | ^^^^^^^^^^^^
Sep 06 06:58:26.226 INFO kablam!   |
Sep 06 06:58:26.226 INFO kablam!   = note: #[warn(unused_attributes)] on by default
Sep 06 06:58:26.226 INFO kablam! 
Sep 06 06:58:26.251 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.31s
Sep 06 06:58:26.260 INFO kablam! su: No module specific data is present
Sep 06 06:58:26.920 INFO running `"docker" "rm" "-f" "9ceef9b08defd3382ef3d365d846607baebdf1534af6bf4d5d684e06daec308f"`
Sep 06 06:58:26.978 INFO blam! 9ceef9b08defd3382ef3d365d846607baebdf1534af6bf4d5d684e06daec308f