Sep 02 00:08:04.713 INFO checking config-0.9.0 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 02 00:08:04.713 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 02 00:08:04.713 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/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 02 00:08:04.872 INFO blam! 6f4e96c2cebb6265c8a7827f7eac11bc60e262898e3b515d54bca16d6c980b9a
Sep 02 00:08:04.874 INFO running `"docker" "start" "-a" "6f4e96c2cebb6265c8a7827f7eac11bc60e262898e3b515d54bca16d6c980b9a"`
Sep 02 00:08:05.713 INFO kablam!     Checking config v0.9.0 (file:///source)
Sep 02 00:08:22.137 INFO kablam! warning: variable does not need to be mutable
Sep 02 00:08:22.137 INFO kablam!   --> tests/env.rs:57:9
Sep 02 00:08:22.137 INFO kablam!    |
Sep 02 00:08:22.137 INFO kablam! 57 |     let mut environment = Environment::with_prefix("C").separator("_");
Sep 02 00:08:22.137 INFO kablam!    |         ----^^^^^^^^^^^
Sep 02 00:08:22.138 INFO kablam!    |         |
Sep 02 00:08:22.138 INFO kablam!    |         help: remove this `mut`
Sep 02 00:08:22.138 INFO kablam!    |
Sep 02 00:08:22.138 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 02 00:08:22.138 INFO kablam! 
Sep 02 00:08:30.657 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 25.08s
Sep 02 00:08:30.678 INFO kablam! su: No module specific data is present
Sep 02 00:08:31.225 INFO running `"docker" "rm" "-f" "6f4e96c2cebb6265c8a7827f7eac11bc60e262898e3b515d54bca16d6c980b9a"`
Sep 02 00:08:31.307 INFO blam! 6f4e96c2cebb6265c8a7827f7eac11bc60e262898e3b515d54bca16d6c980b9a