Sep 02 17:42:44.038 INFO checking config-0.9.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 17:42:44.038 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 17:42:44.039 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-3/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 17:42:44.197 INFO blam! b6fad353b35f44bca935b6cbb04c181bfeaeee3e3161986310ef1b1fa44ac55d
Sep 02 17:42:44.199 INFO running `"docker" "start" "-a" "b6fad353b35f44bca935b6cbb04c181bfeaeee3e3161986310ef1b1fa44ac55d"`
Sep 02 17:42:45.032 INFO kablam!     Checking config v0.9.0 (file:///source)
Sep 02 17:43:01.328 INFO kablam! warning: variable does not need to be mutable
Sep 02 17:43:01.328 INFO kablam!   --> tests/env.rs:57:9
Sep 02 17:43:01.328 INFO kablam!    |
Sep 02 17:43:01.328 INFO kablam! 57 |     let mut environment = Environment::with_prefix("C").separator("_");
Sep 02 17:43:01.328 INFO kablam!    |         ----^^^^^^^^^^^
Sep 02 17:43:01.328 INFO kablam!    |         |
Sep 02 17:43:01.328 INFO kablam!    |         help: remove this `mut`
Sep 02 17:43:01.334 INFO kablam!    |
Sep 02 17:43:01.334 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 02 17:43:01.334 INFO kablam! 
Sep 02 17:43:08.784 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 23.87s
Sep 02 17:43:08.802 INFO kablam! su: No module specific data is present
Sep 02 17:43:09.124 INFO running `"docker" "rm" "-f" "b6fad353b35f44bca935b6cbb04c181bfeaeee3e3161986310ef1b1fa44ac55d"`
Sep 02 17:43:09.217 INFO blam! b6fad353b35f44bca935b6cbb04c181bfeaeee3e3161986310ef1b1fa44ac55d