Sep 19 21:20:23.809 INFO checking ruma-signatures-0.4.0 against try#135b4cd023a753409d01e43b0f23d22a899feeeb for pr-54352
Sep 19 21:20:23.809 INFO running: cargo +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets
Sep 19 21:20:23.809 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54352/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54352/worker-6/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/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 +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 21:20:23.988 INFO blam! 4368994e803bbaef218b0012d57f784e1c34955cc19e085e8c2c4ec9914e4bd1
Sep 19 21:20:23.990 INFO running `"docker" "start" "-a" "4368994e803bbaef218b0012d57f784e1c34955cc19e085e8c2c4ec9914e4bd1"`
Sep 19 21:20:25.101 INFO kablam! usermod: no changes
Sep 19 21:20:25.206 INFO kablam!    Compiling ring v0.9.7
Sep 19 21:20:30.146 INFO kablam!     Checking ruma-signatures v0.4.0 (/source)
Sep 19 21:20:31.041 INFO kablam! warning: variable does not need to be mutable
Sep 19 21:20:31.041 INFO kablam!    --> src/lib.rs:196:13
Sep 19 21:20:31.041 INFO kablam!     |
Sep 19 21:20:31.041 INFO kablam! 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Sep 19 21:20:31.041 INFO kablam!     |             ----^^^^^^
Sep 19 21:20:31.041 INFO kablam!     |             |
Sep 19 21:20:31.042 INFO kablam!     |             help: remove this `mut`
Sep 19 21:20:31.042 INFO kablam!     |
Sep 19 21:20:31.042 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 19 21:20:31.042 INFO kablam! 
Sep 19 21:20:31.219 INFO kablam! warning: variable does not need to be mutable
Sep 19 21:20:31.220 INFO kablam!    --> src/lib.rs:196:13
Sep 19 21:20:31.220 INFO kablam!     |
Sep 19 21:20:31.220 INFO kablam! 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Sep 19 21:20:31.220 INFO kablam!     |             ----^^^^^^
Sep 19 21:20:31.220 INFO kablam!     |             |
Sep 19 21:20:31.220 INFO kablam!     |             help: remove this `mut`
Sep 19 21:20:31.220 INFO kablam!     |
Sep 19 21:20:31.220 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 19 21:20:31.220 INFO kablam! 
Sep 19 21:20:31.326 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 6.20s
Sep 19 21:20:31.333 INFO kablam! su: No module specific data is present
Sep 19 21:20:32.220 INFO running `"docker" "rm" "-f" "4368994e803bbaef218b0012d57f784e1c34955cc19e085e8c2c4ec9914e4bd1"`
Sep 19 21:20:32.336 INFO blam! 4368994e803bbaef218b0012d57f784e1c34955cc19e085e8c2c4ec9914e4bd1