Aug 30 21:03:43.860 INFO checking config-0.9.0 against try#bc5a74802bb3ffc82f51ef04bca58d64220124c4 for pr-53699
Aug 30 21:03:43.860 INFO running: cargo +bc5a74802bb3ffc82f51ef04bca58d64220124c4-alt check --frozen --all --all-targets
Aug 30 21:03:43.860 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53699/try#bc5a74802bb3ffc82f51ef04bca58d64220124c4:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53699/worker-1/try#bc5a74802bb3ffc82f51ef04bca58d64220124c4:/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 +bc5a74802bb3ffc82f51ef04bca58d64220124c4-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 21:03:44.050 INFO blam! 2942dd870e39a7d4ffc759ac56463816a16adb3b4a80f3f4734569eba33d5a85
Aug 30 21:03:44.051 INFO running `"docker" "start" "-a" "2942dd870e39a7d4ffc759ac56463816a16adb3b4a80f3f4734569eba33d5a85"`
Aug 30 21:03:44.822 INFO kablam!     Checking config v0.9.0 (file:///source)
Aug 30 21:03:59.711 INFO kablam! warning: variable does not need to be mutable
Aug 30 21:03:59.711 INFO kablam!   --> tests/env.rs:57:9
Aug 30 21:03:59.711 INFO kablam!    |
Aug 30 21:03:59.711 INFO kablam! 57 |     let mut environment = Environment::with_prefix("C").separator("_");
Aug 30 21:03:59.711 INFO kablam!    |         ----^^^^^^^^^^^
Aug 30 21:03:59.711 INFO kablam!    |         |
Aug 30 21:03:59.711 INFO kablam!    |         help: remove this `mut`
Aug 30 21:03:59.718 INFO kablam!    |
Aug 30 21:03:59.718 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 30 21:03:59.719 INFO kablam! 
Aug 30 21:04:07.958 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 23.25s
Aug 30 21:04:07.988 INFO kablam! su: No module specific data is present
Aug 30 21:04:08.564 INFO running `"docker" "rm" "-f" "2942dd870e39a7d4ffc759ac56463816a16adb3b4a80f3f4734569eba33d5a85"`
Aug 30 21:04:08.722 INFO blam! 2942dd870e39a7d4ffc759ac56463816a16adb3b4a80f3f4734569eba33d5a85