Nov 04 18:33:59.789 INFO checking ruma-signatures-0.4.0 against try#e740b9aa0b624fa39feb39613e76d15bdf57e594 for pr-55655
Nov 04 18:33:59.789 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55655/worker-5/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55655/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +e740b9aa0b624fa39feb39613e76d15bdf57e594-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 04 18:33:59.987 INFO blam! 5b59e278f6a0868eb35a73fd9a4a25e402aedea244bffb8248572d549211b2bf
Nov 04 18:33:59.988 INFO running `"docker" "start" "-a" "5b59e278f6a0868eb35a73fd9a4a25e402aedea244bffb8248572d549211b2bf"`
Nov 04 18:34:00.382 INFO kablam! usermod: no changes
Nov 04 18:34:00.523 INFO kablam!    Compiling ring v0.9.7
Nov 04 18:34:06.627 INFO kablam!     Checking ruma-signatures v0.4.0 (/source)
Nov 04 18:34:08.315 INFO kablam! warning: variable does not need to be mutable
Nov 04 18:34:08.315 INFO kablam!    --> src/lib.rs:196:13
Nov 04 18:34:08.315 INFO kablam!     |
Nov 04 18:34:08.315 INFO kablam! 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Nov 04 18:34:08.315 INFO kablam!     |             ----^^^^^^
Nov 04 18:34:08.315 INFO kablam!     |             |
Nov 04 18:34:08.315 INFO kablam!     |             help: remove this `mut`
Nov 04 18:34:08.315 INFO kablam!     |
Nov 04 18:34:08.315 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 04 18:34:08.315 INFO kablam! 
Nov 04 18:34:08.603 INFO kablam! warning: variable does not need to be mutable
Nov 04 18:34:08.603 INFO kablam!    --> src/lib.rs:196:13
Nov 04 18:34:08.603 INFO kablam!     |
Nov 04 18:34:08.603 INFO kablam! 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Nov 04 18:34:08.603 INFO kablam!     |             ----^^^^^^
Nov 04 18:34:08.603 INFO kablam!     |             |
Nov 04 18:34:08.603 INFO kablam!     |             help: remove this `mut`
Nov 04 18:34:08.603 INFO kablam!     |
Nov 04 18:34:08.603 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 04 18:34:08.603 INFO kablam! 
Nov 04 18:34:08.733 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 8.30s
Nov 04 18:34:08.747 INFO kablam! su: No module specific data is present
Nov 04 18:34:09.615 INFO running `"docker" "rm" "-f" "5b59e278f6a0868eb35a73fd9a4a25e402aedea244bffb8248572d549211b2bf"`
Nov 04 18:34:09.953 INFO blam! 5b59e278f6a0868eb35a73fd9a4a25e402aedea244bffb8248572d549211b2bf