Oct 13 13:14:29.287 INFO checking ixlist-0.1.0 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 13:14:29.288 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-1/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-1/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 13:14:29.514 INFO blam! c03390fa4a50c30a4278c01564bc4f2f05e649467f2abb8de5d53f0a050a9b8a
Oct 13 13:14:29.516 INFO running `"docker" "start" "-a" "c03390fa4a50c30a4278c01564bc4f2f05e649467f2abb8de5d53f0a050a9b8a"`
Oct 13 13:14:31.052 INFO kablam! usermod: no changes
Oct 13 13:14:31.148 INFO kablam!     Checking ixlist v0.1.0 (/source)
Oct 13 13:14:32.904 INFO kablam! warning: unnecessary parentheses around `for` head expression
Oct 13 13:14:32.904 INFO kablam!   --> benches/bench1.rs:26:18
Oct 13 13:14:32.904 INFO kablam!    |
Oct 13 13:14:32.904 INFO kablam! 26 |         for _ in (0..n) {
Oct 13 13:14:32.904 INFO kablam!    |                  ^^^^^^ help: remove these parentheses
Oct 13 13:14:32.904 INFO kablam!    |
Oct 13 13:14:32.904 INFO kablam!    = note: #[warn(unused_parens)] on by default
Oct 13 13:14:32.904 INFO kablam! 
Oct 13 13:14:32.904 INFO kablam! warning: unnecessary parentheses around `for` head expression
Oct 13 13:14:32.904 INFO kablam!   --> benches/bench1.rs:38:18
Oct 13 13:14:32.904 INFO kablam!    |
Oct 13 13:14:32.904 INFO kablam! 38 |         for _ in (0..n) {
Oct 13 13:14:32.904 INFO kablam!    |                  ^^^^^^ help: remove these parentheses
Oct 13 13:14:32.904 INFO kablam! 
Oct 13 13:14:32.904 INFO kablam! warning: unnecessary parentheses around `for` head expression
Oct 13 13:14:32.904 INFO kablam!   --> benches/bench1.rs:66:18
Oct 13 13:14:32.904 INFO kablam!    |
Oct 13 13:14:32.904 INFO kablam! 66 |         for _ in (0..n) {
Oct 13 13:14:32.904 INFO kablam!    |                  ^^^^^^ help: remove these parentheses
Oct 13 13:14:32.904 INFO kablam! 
Oct 13 13:14:32.904 INFO kablam! warning: unnecessary parentheses around `for` head expression
Oct 13 13:14:32.904 INFO kablam!   --> benches/bench1.rs:78:18
Oct 13 13:14:32.904 INFO kablam!    |
Oct 13 13:14:32.904 INFO kablam! 78 |         for _ in (0..n) {
Oct 13 13:14:32.904 INFO kablam!    |                  ^^^^^^ help: remove these parentheses
Oct 13 13:14:32.904 INFO kablam! 
Oct 13 13:14:32.904 INFO kablam! warning: unnecessary parentheses around `for` head expression
Oct 13 13:14:32.904 INFO kablam!   --> benches/bench1.rs:90:14
Oct 13 13:14:32.904 INFO kablam!    |
Oct 13 13:14:32.904 INFO kablam! 90 |     for _ in (0..n) {
Oct 13 13:14:32.904 INFO kablam!    |              ^^^^^^ help: remove these parentheses
Oct 13 13:14:32.904 INFO kablam! 
Oct 13 13:14:32.904 INFO kablam! warning: unnecessary parentheses around `for` head expression
Oct 13 13:14:32.904 INFO kablam!    --> benches/bench1.rs:110:14
Oct 13 13:14:32.904 INFO kablam!     |
Oct 13 13:14:32.904 INFO kablam! 110 |     for _ in (0..n) {
Oct 13 13:14:32.904 INFO kablam!     |              ^^^^^^ help: remove these parentheses
Oct 13 13:14:32.904 INFO kablam! 
Oct 13 13:14:32.904 INFO kablam! warning: unnecessary parentheses around `for` head expression
Oct 13 13:14:32.904 INFO kablam!    --> benches/bench1.rs:131:14
Oct 13 13:14:32.904 INFO kablam!     |
Oct 13 13:14:32.904 INFO kablam! 131 |     for _ in (0..n) {
Oct 13 13:14:32.904 INFO kablam!     |              ^^^^^^ help: remove these parentheses
Oct 13 13:14:32.904 INFO kablam! 
Oct 13 13:14:33.243 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.15s
Oct 13 13:14:33.249 INFO kablam! su: No module specific data is present
Oct 13 13:14:33.660 INFO running `"docker" "rm" "-f" "c03390fa4a50c30a4278c01564bc4f2f05e649467f2abb8de5d53f0a050a9b8a"`
Oct 13 13:14:33.921 INFO blam! c03390fa4a50c30a4278c01564bc4f2f05e649467f2abb8de5d53f0a050a9b8a