Dec 12 14:56:12.216 INFO checking fn_block-0.2.1 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 14:56:12.216 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 12 14:56:12.433 INFO [stdout] 17989e44a7b46d2a8a11f1960a3e888ea5de9d88d47339a11afc9f0812243579
Dec 12 14:56:12.435 INFO running `"docker" "start" "-a" "17989e44a7b46d2a8a11f1960a3e888ea5de9d88d47339a11afc9f0812243579"`
Dec 12 14:56:13.233 INFO [stderr] usermod: no changes
Dec 12 14:56:13.384 INFO [stderr]     Checking fn_block v0.2.1 (/source)
Dec 12 14:56:18.904 INFO [stderr] warning: unused variable: `s`
Dec 12 14:56:18.904 INFO [stderr]   --> benches/fn_block_benchmark.rs:10:9
Dec 12 14:56:18.904 INFO [stderr]    |
Dec 12 14:56:18.904 INFO [stderr] 10 |     let s = o.and_then(|st| st.get(0..3)).map(|st| st.to_lowercase());
Dec 12 14:56:18.904 INFO [stderr]    |         ^ help: consider using `_s` instead
Dec 12 14:56:18.904 INFO [stderr]    |
Dec 12 14:56:18.904 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 14:56:18.904 INFO [stderr] 
Dec 12 14:56:18.904 INFO [stderr] warning: unused variable: `s`
Dec 12 14:56:18.904 INFO [stderr]   --> benches/fn_block_benchmark.rs:14:9
Dec 12 14:56:18.904 INFO [stderr]    |
Dec 12 14:56:18.904 INFO [stderr] 14 |     let s = (|| Some(o?.get(0..3)?.to_lowercase()))();
Dec 12 14:56:18.904 INFO [stderr]    |         ^ help: consider using `_s` instead
Dec 12 14:56:18.904 INFO [stderr] 
Dec 12 14:56:18.904 INFO [stderr] warning: unused variable: `s`
Dec 12 14:56:18.904 INFO [stderr]   --> benches/fn_block_benchmark.rs:18:9
Dec 12 14:56:18.904 INFO [stderr]    |
Dec 12 14:56:18.904 INFO [stderr] 18 |     let s = fn_expr!{ o?.get(0..3)?.to_lowercase().into_some() };
Dec 12 14:56:18.904 INFO [stderr]    |         ^ help: consider using `_s` instead
Dec 12 14:56:18.904 INFO [stderr] 
Dec 12 14:56:18.912 INFO [stderr] warning: unused attribute
Dec 12 14:56:18.912 INFO [stderr]  --> benches/fn_block_benchmark.rs:5:1
Dec 12 14:56:18.912 INFO [stderr]   |
Dec 12 14:56:18.912 INFO [stderr] 5 | #[macro_use]
Dec 12 14:56:18.912 INFO [stderr]   | ^^^^^^^^^^^^
Dec 12 14:56:18.912 INFO [stderr]   |
Dec 12 14:56:18.912 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Dec 12 14:56:18.912 INFO [stderr] 
Dec 12 14:56:18.936 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.68s
Dec 12 14:56:18.948 INFO [stderr] su: No module specific data is present
Dec 12 14:56:19.273 INFO running `"docker" "inspect" "17989e44a7b46d2a8a11f1960a3e888ea5de9d88d47339a11afc9f0812243579"`
Dec 12 14:56:19.414 INFO running `"docker" "rm" "-f" "17989e44a7b46d2a8a11f1960a3e888ea5de9d88d47339a11afc9f0812243579"`
Dec 12 14:56:19.486 INFO [stdout] 17989e44a7b46d2a8a11f1960a3e888ea5de9d88d47339a11afc9f0812243579