Nov 01 09:38:30.005 INFO checking VaclavStebra/rust-book-references-and-borrowing against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 09:38:30.005 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-6/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 01 09:38:30.423 INFO blam! 797d835d74e972ceb08a88ed5e5d87644466ba70c28bebdab02c71c62ba24136
Nov 01 09:38:30.425 INFO running `"docker" "start" "-a" "797d835d74e972ceb08a88ed5e5d87644466ba70c28bebdab02c71c62ba24136"`
Nov 01 09:38:31.432 INFO kablam! usermod: no changes
Nov 01 09:38:31.473 INFO kablam!     Checking rust-book-references-and-borrowing v0.1.0 (/source)
Nov 01 09:38:32.128 INFO kablam! warning: unused variable: `r1`
Nov 01 09:38:32.128 INFO kablam!   --> src/main.rs:20:9
Nov 01 09:38:32.128 INFO kablam!    |
Nov 01 09:38:32.128 INFO kablam! 20 |     let r1 = &mut s2;
Nov 01 09:38:32.128 INFO kablam!    |         ^^ help: consider using `_r1` instead
Nov 01 09:38:32.128 INFO kablam!    |
Nov 01 09:38:32.128 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 01 09:38:32.128 INFO kablam! 
Nov 01 09:38:32.320 INFO kablam! warning: unused variable: `r1`
Nov 01 09:38:32.320 INFO kablam!   --> src/main.rs:20:9
Nov 01 09:38:32.320 INFO kablam!    |
Nov 01 09:38:32.320 INFO kablam! 20 |     let r1 = &mut s2;
Nov 01 09:38:32.320 INFO kablam!    |         ^^ help: consider using `_r1` instead
Nov 01 09:38:32.320 INFO kablam!    |
Nov 01 09:38:32.320 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 01 09:38:32.320 INFO kablam! 
Nov 01 09:38:32.359 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
Nov 01 09:38:32.362 INFO kablam! su: No module specific data is present
Nov 01 09:38:32.860 INFO running `"docker" "rm" "-f" "797d835d74e972ceb08a88ed5e5d87644466ba70c28bebdab02c71c62ba24136"`
Nov 01 09:38:33.169 INFO blam! 797d835d74e972ceb08a88ed5e5d87644466ba70c28bebdab02c71c62ba24136