Sep 06 01:03:25.858 INFO checking ruma-signatures-0.4.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 01:03:25.858 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 01:03:25.858 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-6/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 01:03:26.019 INFO blam! 8c053b580d8411e3b103904b74a782e55d610e2a30a8f4deeac9cf7149e7363b
Sep 06 01:03:26.020 INFO running `"docker" "start" "-a" "8c053b580d8411e3b103904b74a782e55d610e2a30a8f4deeac9cf7149e7363b"`
Sep 06 01:03:26.775 INFO kablam! usermod: no changes
Sep 06 01:03:26.886 INFO kablam!    Compiling ring v0.9.7
Sep 06 01:03:32.560 INFO kablam!     Checking ruma-signatures v0.4.0 (file:///source)
Sep 06 01:03:33.352 INFO kablam! warning: variable does not need to be mutable
Sep 06 01:03:33.352 INFO kablam!    --> src/lib.rs:196:13
Sep 06 01:03:33.352 INFO kablam!     |
Sep 06 01:03:33.352 INFO kablam! 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Sep 06 01:03:33.352 INFO kablam!     |             ----^^^^^^
Sep 06 01:03:33.352 INFO kablam!     |             |
Sep 06 01:03:33.352 INFO kablam!     |             help: remove this `mut`
Sep 06 01:03:33.352 INFO kablam!     |
Sep 06 01:03:33.352 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 06 01:03:33.352 INFO kablam! 
Sep 06 01:03:33.672 INFO kablam! warning: variable does not need to be mutable
Sep 06 01:03:33.672 INFO kablam!    --> src/lib.rs:196:13
Sep 06 01:03:33.672 INFO kablam!     |
Sep 06 01:03:33.672 INFO kablam! 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Sep 06 01:03:33.672 INFO kablam!     |             ----^^^^^^
Sep 06 01:03:33.672 INFO kablam!     |             |
Sep 06 01:03:33.672 INFO kablam!     |             help: remove this `mut`
Sep 06 01:03:33.672 INFO kablam!     |
Sep 06 01:03:33.672 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 06 01:03:33.672 INFO kablam! 
Sep 06 01:03:33.762 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 6.95s
Sep 06 01:03:33.770 INFO kablam! su: No module specific data is present
Sep 06 01:03:34.395 INFO running `"docker" "rm" "-f" "8c053b580d8411e3b103904b74a782e55d610e2a30a8f4deeac9cf7149e7363b"`
Sep 06 01:03:34.497 INFO blam! 8c053b580d8411e3b103904b74a782e55d610e2a30a8f4deeac9cf7149e7363b