Jul 12 01:25:07.728 INFO checking r4-1.0.1 against master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9 for pr-52234
Jul 12 01:25:07.729 INFO running: cargo +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets
Jul 12 01:25:07.729 INFO creating container for: cargo +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets
Jul 12 01:25:07.729 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-52234/master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-52234/worker-2/master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9:/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=500" "-e" "CMD=cargo +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Jul 12 01:25:07.971 INFO blam! 344cb90bc0c5d05c3dabb1fbee6fc2f555511eff89674f18a22184d0d776711d
Jul 12 01:25:07.973 INFO running `"docker" "start" "-a" "344cb90bc0c5d05c3dabb1fbee6fc2f555511eff89674f18a22184d0d776711d"`
Jul 12 01:25:08.943 INFO kablam!     Checking r4 v1.0.1 (file:///source)
Jul 12 01:25:10.276 INFO kablam! warning: unused variable: `i`
Jul 12 01:25:10.276 INFO kablam!    --> src/lib.rs:407:34
Jul 12 01:25:10.276 INFO kablam!     |
Jul 12 01:25:10.276 INFO kablam! 407 |                     iterate![for i in 0..4;
Jul 12 01:25:10.276 INFO kablam!     |                                  ^ help: consider using `_i` instead
Jul 12 01:25:10.276 INFO kablam!     |
Jul 12 01:25:10.276 INFO kablam!     = note: #[warn(unused_variables)] on by default
Jul 12 01:25:10.276 INFO kablam! 
Jul 12 01:25:10.276 INFO kablam! warning: unused variable: `x`
Jul 12 01:25:10.276 INFO kablam!    --> src/lib.rs:433:34
Jul 12 01:25:10.276 INFO kablam!     |
Jul 12 01:25:10.276 INFO kablam! 433 |                     iterate![for x in vs.iter();
Jul 12 01:25:10.276 INFO kablam!     |                                  ^ help: consider using `_x` instead
Jul 12 01:25:10.276 INFO kablam! 
Jul 12 01:25:10.276 INFO kablam! warning: unused variable: `x`
Jul 12 01:25:10.276 INFO kablam!    --> src/lib.rs:443:34
Jul 12 01:25:10.276 INFO kablam!     |
Jul 12 01:25:10.276 INFO kablam! 443 |                     iterate![for x in vs.iter();
Jul 12 01:25:10.276 INFO kablam!     |                                  ^ help: consider using `_x` instead
Jul 12 01:25:10.276 INFO kablam! 
Jul 12 01:25:10.276 INFO kablam! warning: unused variable: `a`
Jul 12 01:25:10.276 INFO kablam!    --> src/lib.rs:474:34
Jul 12 01:25:10.276 INFO kablam!     |
Jul 12 01:25:10.276 INFO kablam! 474 |                              let a = *x + 3;
Jul 12 01:25:10.276 INFO kablam!     |                                  ^ help: consider using `_a` instead
Jul 12 01:25:10.277 INFO kablam! 
Jul 12 01:25:10.277 INFO kablam! warning: unused variable: `a`
Jul 12 01:25:10.277 INFO kablam!    --> src/lib.rs:489:34
Jul 12 01:25:10.277 INFO kablam!     |
Jul 12 01:25:10.277 INFO kablam! 489 |                              let a = *x + 3;
Jul 12 01:25:10.277 INFO kablam!     |                                  ^ help: consider using `_a` instead
Jul 12 01:25:10.277 INFO kablam! 
Jul 12 01:25:10.277 INFO kablam! warning: unused variable: `y`
Jul 12 01:25:10.277 INFO kablam!    --> src/lib.rs:506:34
Jul 12 01:25:10.277 INFO kablam!     |
Jul 12 01:25:10.277 INFO kablam! 506 |                              for y in vs.iter();
Jul 12 01:25:10.277 INFO kablam!     |                                  ^ help: consider using `_y` instead
Jul 12 01:25:10.277 INFO kablam! 
Jul 12 01:25:10.277 INFO kablam! warning: unused variable: `x`
Jul 12 01:25:10.277 INFO kablam!    --> src/lib.rs:522:34
Jul 12 01:25:10.277 INFO kablam!     |
Jul 12 01:25:10.277 INFO kablam! 522 |                              let x = *x + 1;
Jul 12 01:25:10.277 INFO kablam!     |                                  ^ help: consider using `_x` instead
Jul 12 01:25:10.277 INFO kablam! 
Jul 12 01:25:10.506 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.59s
Jul 12 01:25:10.510 INFO kablam! su: No module specific data is present
Jul 12 01:25:11.062 INFO running `"docker" "rm" "-f" "344cb90bc0c5d05c3dabb1fbee6fc2f555511eff89674f18a22184d0d776711d"`
Jul 12 01:25:11.245 INFO blam! 344cb90bc0c5d05c3dabb1fbee6fc2f555511eff89674f18a22184d0d776711d