Sep 21 00:11:51.478 INFO checking zcfg_flag_parser-0.2.0 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 00:11:51.478 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 00:11:51.478 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-6/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/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=1000" "-e" "CMD=cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 00:11:51.716 INFO blam! 237fc3c1f4fa37fe84bc554ee4be129095bd26a6dfaf0a9a2cc7b8e62ab27aef
Sep 21 00:11:51.717 INFO running `"docker" "start" "-a" "237fc3c1f4fa37fe84bc554ee4be129095bd26a6dfaf0a9a2cc7b8e62ab27aef"`
Sep 21 00:11:52.612 INFO kablam! usermod: no changes
Sep 21 00:11:52.645 INFO kablam!     Checking itertools v0.6.5
Sep 21 00:11:52.645 INFO kablam!     Checking zcfg v0.2.0
Sep 21 00:11:54.391 INFO kablam!     Checking zcfg_flag_parser v0.2.0 (/source)
Sep 21 00:11:54.688 INFO kablam! warning: variable does not need to be mutable
Sep 21 00:11:54.688 INFO kablam!   --> src/lib.rs:58:16
Sep 21 00:11:54.688 INFO kablam!    |
Sep 21 00:11:54.688 INFO kablam! 58 |     .batching(|mut it| {
Sep 21 00:11:54.688 INFO kablam!    |                ----^^
Sep 21 00:11:54.688 INFO kablam!    |                |
Sep 21 00:11:54.688 INFO kablam!    |                help: remove this `mut`
Sep 21 00:11:54.688 INFO kablam!    |
Sep 21 00:11:54.688 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 21 00:11:54.688 INFO kablam! 
Sep 21 00:11:54.690 INFO kablam! warning: variable does not need to be mutable
Sep 21 00:11:54.690 INFO kablam!   --> src/lib.rs:58:16
Sep 21 00:11:54.690 INFO kablam!    |
Sep 21 00:11:54.690 INFO kablam! 58 |     .batching(|mut it| {
Sep 21 00:11:54.690 INFO kablam!    |                ----^^
Sep 21 00:11:54.690 INFO kablam!    |                |
Sep 21 00:11:54.690 INFO kablam!    |                help: remove this `mut`
Sep 21 00:11:54.690 INFO kablam!    |
Sep 21 00:11:54.690 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 21 00:11:54.690 INFO kablam! 
Sep 21 00:11:54.715 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.09s
Sep 21 00:11:54.718 INFO kablam! su: No module specific data is present
Sep 21 00:11:55.492 INFO running `"docker" "rm" "-f" "237fc3c1f4fa37fe84bc554ee4be129095bd26a6dfaf0a9a2cc7b8e62ab27aef"`
Sep 21 00:11:55.565 INFO blam! 237fc3c1f4fa37fe84bc554ee4be129095bd26a6dfaf0a9a2cc7b8e62ab27aef