Aug 02 12:30:48.843 INFO checking config-0.9.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 12:30:48.843 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 12:30:48.843 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 12:30:48.844 INFO running `"docker" "create" "-v" "/tmp/crater.A09qfK4Q0hjR:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2+tmplazy:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 02 12:30:49.165 INFO blam! 76c71f2de63655ffa5864056afff27fe6689a6ae5b6777c6761c1c833a857667
Aug 02 12:30:49.167 INFO running `"docker" "start" "-a" "76c71f2de63655ffa5864056afff27fe6689a6ae5b6777c6761c1c833a857667"`
Aug 02 12:30:50.091 INFO kablam!     Checking config v0.9.0 (file:///source)
Aug 02 12:31:04.675 INFO kablam! warning: variable does not need to be mutable
Aug 02 12:31:04.675 INFO kablam!   --> tests/env.rs:57:9
Aug 02 12:31:04.675 INFO kablam!    |
Aug 02 12:31:04.675 INFO kablam! 57 |     let mut environment = Environment::with_prefix("C").separator("_");
Aug 02 12:31:04.675 INFO kablam!    |         ----^^^^^^^^^^^
Aug 02 12:31:04.675 INFO kablam!    |         |
Aug 02 12:31:04.675 INFO kablam!    |         help: remove this `mut`
Aug 02 12:31:04.692 INFO kablam!    |
Aug 02 12:31:04.693 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 02 12:31:04.693 INFO kablam! 
Aug 02 12:31:10.633 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 20.67s
Aug 02 12:31:10.671 INFO kablam! su: No module specific data is present
Aug 02 12:31:11.571 INFO running `"docker" "rm" "-f" "76c71f2de63655ffa5864056afff27fe6689a6ae5b6777c6761c1c833a857667"`
Aug 02 12:31:11.728 INFO blam! 76c71f2de63655ffa5864056afff27fe6689a6ae5b6777c6761c1c833a857667