Oct 13 15:13:12.070 INFO checking fn_block-0.2.1 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 15:13:12.070 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-4/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 13 15:13:12.373 INFO blam! 39b361faa07edef94ebb57abae9988cf7bee640d08651c7dbd274e591a5065b7
Oct 13 15:13:12.376 INFO running `"docker" "start" "-a" "39b361faa07edef94ebb57abae9988cf7bee640d08651c7dbd274e591a5065b7"`
Oct 13 15:13:13.011 INFO kablam! usermod: no changes
Oct 13 15:13:13.143 INFO kablam!     Checking fn_block v0.2.1 (/source)
Oct 13 15:13:18.530 INFO kablam! warning: unused variable: `s`
Oct 13 15:13:18.530 INFO kablam!   --> benches/fn_block_benchmark.rs:10:9
Oct 13 15:13:18.530 INFO kablam!    |
Oct 13 15:13:18.530 INFO kablam! 10 |     let s = o.and_then(|st| st.get(0..3)).map(|st| st.to_lowercase());
Oct 13 15:13:18.530 INFO kablam!    |         ^ help: consider using `_s` instead
Oct 13 15:13:18.530 INFO kablam!    |
Oct 13 15:13:18.530 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 13 15:13:18.530 INFO kablam! 
Oct 13 15:13:18.530 INFO kablam! warning: unused variable: `s`
Oct 13 15:13:18.530 INFO kablam!   --> benches/fn_block_benchmark.rs:14:9
Oct 13 15:13:18.530 INFO kablam!    |
Oct 13 15:13:18.530 INFO kablam! 14 |     let s = (|| Some(o?.get(0..3)?.to_lowercase()))();
Oct 13 15:13:18.530 INFO kablam!    |         ^ help: consider using `_s` instead
Oct 13 15:13:18.530 INFO kablam! 
Oct 13 15:13:18.530 INFO kablam! warning: unused variable: `s`
Oct 13 15:13:18.530 INFO kablam!   --> benches/fn_block_benchmark.rs:18:9
Oct 13 15:13:18.530 INFO kablam!    |
Oct 13 15:13:18.530 INFO kablam! 18 |     let s = fn_expr!{ o?.get(0..3)?.to_lowercase().into_some() };
Oct 13 15:13:18.530 INFO kablam!    |         ^ help: consider using `_s` instead
Oct 13 15:13:18.530 INFO kablam! 
Oct 13 15:13:18.538 INFO kablam! warning: unused attribute
Oct 13 15:13:18.538 INFO kablam!  --> benches/fn_block_benchmark.rs:5:1
Oct 13 15:13:18.538 INFO kablam!   |
Oct 13 15:13:18.538 INFO kablam! 5 | #[macro_use]
Oct 13 15:13:18.538 INFO kablam!   | ^^^^^^^^^^^^
Oct 13 15:13:18.538 INFO kablam!   |
Oct 13 15:13:18.538 INFO kablam!   = note: #[warn(unused_attributes)] on by default
Oct 13 15:13:18.538 INFO kablam! 
Oct 13 15:13:18.563 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.54s
Oct 13 15:13:18.572 INFO kablam! su: No module specific data is present
Oct 13 15:13:18.847 INFO running `"docker" "rm" "-f" "39b361faa07edef94ebb57abae9988cf7bee640d08651c7dbd274e591a5065b7"`
Oct 13 15:13:18.949 INFO blam! 39b361faa07edef94ebb57abae9988cf7bee640d08651c7dbd274e591a5065b7