Nov 30 22:53:23.916 INFO checking fn_block-0.2.1 against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 22:53:23.916 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-0/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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"`
Nov 30 22:53:24.292 INFO [stdout] 140926abb7e7e6011be54a728ba75967c60d7d0810be77f1d000b1048d99859a
Nov 30 22:53:24.298 INFO running `"docker" "start" "-a" "140926abb7e7e6011be54a728ba75967c60d7d0810be77f1d000b1048d99859a"`
Nov 30 22:53:24.976 INFO [stderr] usermod: no changes
Nov 30 22:53:25.122 INFO [stderr]     Checking fn_block v0.2.1 (/source)
Nov 30 22:53:30.450 INFO [stderr] warning: unused variable: `s`
Nov 30 22:53:30.450 INFO [stderr]   --> benches/fn_block_benchmark.rs:10:9
Nov 30 22:53:30.450 INFO [stderr]    |
Nov 30 22:53:30.450 INFO [stderr] 10 |     let s = o.and_then(|st| st.get(0..3)).map(|st| st.to_lowercase());
Nov 30 22:53:30.450 INFO [stderr]    |         ^ help: consider using `_s` instead
Nov 30 22:53:30.450 INFO [stderr]    |
Nov 30 22:53:30.450 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 22:53:30.450 INFO [stderr] 
Nov 30 22:53:30.450 INFO [stderr] warning: unused variable: `s`
Nov 30 22:53:30.450 INFO [stderr]   --> benches/fn_block_benchmark.rs:14:9
Nov 30 22:53:30.450 INFO [stderr]    |
Nov 30 22:53:30.450 INFO [stderr] 14 |     let s = (|| Some(o?.get(0..3)?.to_lowercase()))();
Nov 30 22:53:30.450 INFO [stderr]    |         ^ help: consider using `_s` instead
Nov 30 22:53:30.450 INFO [stderr] 
Nov 30 22:53:30.450 INFO [stderr] warning: unused variable: `s`
Nov 30 22:53:30.450 INFO [stderr]   --> benches/fn_block_benchmark.rs:18:9
Nov 30 22:53:30.450 INFO [stderr]    |
Nov 30 22:53:30.450 INFO [stderr] 18 |     let s = fn_expr!{ o?.get(0..3)?.to_lowercase().into_some() };
Nov 30 22:53:30.450 INFO [stderr]    |         ^ help: consider using `_s` instead
Nov 30 22:53:30.450 INFO [stderr] 
Nov 30 22:53:30.463 INFO [stderr] warning: unused attribute
Nov 30 22:53:30.463 INFO [stderr]  --> benches/fn_block_benchmark.rs:5:1
Nov 30 22:53:30.463 INFO [stderr]   |
Nov 30 22:53:30.463 INFO [stderr] 5 | #[macro_use]
Nov 30 22:53:30.463 INFO [stderr]   | ^^^^^^^^^^^^
Nov 30 22:53:30.463 INFO [stderr]   |
Nov 30 22:53:30.463 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Nov 30 22:53:30.463 INFO [stderr] 
Nov 30 22:53:30.491 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.49s
Nov 30 22:53:30.503 INFO [stderr] su: No module specific data is present
Nov 30 22:53:30.878 INFO running `"docker" "inspect" "140926abb7e7e6011be54a728ba75967c60d7d0810be77f1d000b1048d99859a"`
Nov 30 22:53:30.994 INFO running `"docker" "rm" "-f" "140926abb7e7e6011be54a728ba75967c60d7d0810be77f1d000b1048d99859a"`
Nov 30 22:53:31.193 INFO [stdout] 140926abb7e7e6011be54a728ba75967c60d7d0810be77f1d000b1048d99859a