Sep 10 20:58:02.211 INFO checking config-0.9.0 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 20:58:02.211 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 20:58:02.211 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-6/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 20:58:02.342 INFO blam! 3f50642fd9d6b77c56045762ab19a933ae9953f4caab51cc0440faf232109ea0
Sep 10 20:58:02.344 INFO running `"docker" "start" "-a" "3f50642fd9d6b77c56045762ab19a933ae9953f4caab51cc0440faf232109ea0"`
Sep 10 20:58:03.468 INFO kablam! usermod: no changes
Sep 10 20:58:03.570 INFO kablam!     Checking config v0.9.0 (file:///source)
Sep 10 20:58:07.036 INFO kablam! warning: variable does not need to be mutable
Sep 10 20:58:07.036 INFO kablam!   --> tests/env.rs:57:9
Sep 10 20:58:07.036 INFO kablam!    |
Sep 10 20:58:07.036 INFO kablam! 57 |     let mut environment = Environment::with_prefix("C").separator("_");
Sep 10 20:58:07.036 INFO kablam!    |         ----^^^^^^^^^^^
Sep 10 20:58:07.036 INFO kablam!    |         |
Sep 10 20:58:07.036 INFO kablam!    |         help: remove this `mut`
Sep 10 20:58:07.036 INFO kablam!    |
Sep 10 20:58:07.036 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 10 20:58:07.037 INFO kablam! 
Sep 10 20:58:08.590 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.10s
Sep 10 20:58:08.600 INFO kablam! su: No module specific data is present
Sep 10 20:58:09.481 INFO running `"docker" "rm" "-f" "3f50642fd9d6b77c56045762ab19a933ae9953f4caab51cc0440faf232109ea0"`
Sep 10 20:58:09.579 INFO blam! 3f50642fd9d6b77c56045762ab19a933ae9953f4caab51cc0440faf232109ea0