Sep 01 16:29:24.247 INFO checking ixlist-0.1.0 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 16:29:24.247 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 16:29:24.247 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-3/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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 +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 16:29:24.462 INFO blam! 4a0885e5c9cf1e23daf134435b48757d7d5368b530c66bf08afcbd203292252d
Sep 01 16:29:24.463 INFO running `"docker" "start" "-a" "4a0885e5c9cf1e23daf134435b48757d7d5368b530c66bf08afcbd203292252d"`
Sep 01 16:29:25.180 INFO kablam!     Checking ixlist v0.1.0 (file:///source)
Sep 01 16:29:26.714 INFO kablam! warning: unnecessary parentheses around `for` head expression
Sep 01 16:29:26.714 INFO kablam!   --> benches/bench1.rs:26:18
Sep 01 16:29:26.714 INFO kablam!    |
Sep 01 16:29:26.714 INFO kablam! 26 |         for _ in (0..n) {
Sep 01 16:29:26.714 INFO kablam!    |                  ^^^^^^ help: remove these parentheses
Sep 01 16:29:26.714 INFO kablam!    |
Sep 01 16:29:26.714 INFO kablam!    = note: #[warn(unused_parens)] on by default
Sep 01 16:29:26.714 INFO kablam! 
Sep 01 16:29:26.714 INFO kablam! warning: unnecessary parentheses around `for` head expression
Sep 01 16:29:26.714 INFO kablam!   --> benches/bench1.rs:38:18
Sep 01 16:29:26.714 INFO kablam!    |
Sep 01 16:29:26.714 INFO kablam! 38 |         for _ in (0..n) {
Sep 01 16:29:26.714 INFO kablam!    |                  ^^^^^^ help: remove these parentheses
Sep 01 16:29:26.714 INFO kablam! 
Sep 01 16:29:26.715 INFO kablam! warning: unnecessary parentheses around `for` head expression
Sep 01 16:29:26.715 INFO kablam!   --> benches/bench1.rs:66:18
Sep 01 16:29:26.715 INFO kablam!    |
Sep 01 16:29:26.715 INFO kablam! 66 |         for _ in (0..n) {
Sep 01 16:29:26.715 INFO kablam!    |                  ^^^^^^ help: remove these parentheses
Sep 01 16:29:26.715 INFO kablam! 
Sep 01 16:29:26.715 INFO kablam! warning: unnecessary parentheses around `for` head expression
Sep 01 16:29:26.715 INFO kablam!   --> benches/bench1.rs:78:18
Sep 01 16:29:26.715 INFO kablam!    |
Sep 01 16:29:26.715 INFO kablam! 78 |         for _ in (0..n) {
Sep 01 16:29:26.715 INFO kablam!    |                  ^^^^^^ help: remove these parentheses
Sep 01 16:29:26.715 INFO kablam! 
Sep 01 16:29:26.715 INFO kablam! warning: unnecessary parentheses around `for` head expression
Sep 01 16:29:26.715 INFO kablam!   --> benches/bench1.rs:90:14
Sep 01 16:29:26.715 INFO kablam!    |
Sep 01 16:29:26.715 INFO kablam! 90 |     for _ in (0..n) {
Sep 01 16:29:26.715 INFO kablam!    |              ^^^^^^ help: remove these parentheses
Sep 01 16:29:26.715 INFO kablam! 
Sep 01 16:29:26.715 INFO kablam! warning: unnecessary parentheses around `for` head expression
Sep 01 16:29:26.715 INFO kablam!    --> benches/bench1.rs:110:14
Sep 01 16:29:26.715 INFO kablam!     |
Sep 01 16:29:26.715 INFO kablam! 110 |     for _ in (0..n) {
Sep 01 16:29:26.715 INFO kablam!     |              ^^^^^^ help: remove these parentheses
Sep 01 16:29:26.715 INFO kablam! 
Sep 01 16:29:26.715 INFO kablam! warning: unnecessary parentheses around `for` head expression
Sep 01 16:29:26.715 INFO kablam!    --> benches/bench1.rs:131:14
Sep 01 16:29:26.715 INFO kablam!     |
Sep 01 16:29:26.715 INFO kablam! 131 |     for _ in (0..n) {
Sep 01 16:29:26.715 INFO kablam!     |              ^^^^^^ help: remove these parentheses
Sep 01 16:29:26.715 INFO kablam! 
Sep 01 16:29:27.091 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.94s
Sep 01 16:29:27.094 INFO kablam! su: No module specific data is present
Sep 01 16:29:27.807 INFO running `"docker" "rm" "-f" "4a0885e5c9cf1e23daf134435b48757d7d5368b530c66bf08afcbd203292252d"`
Sep 01 16:29:27.902 INFO blam! 4a0885e5c9cf1e23daf134435b48757d7d5368b530c66bf08afcbd203292252d