Nov 07 09:42:47.498 INFO checking ruma-signatures-0.4.0 against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 07 09:42:47.498 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-0/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/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 +24e66c28980442a48d9458f1a4f9b76cc722dc8a-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 07 09:42:47.692 INFO blam! 74eda718a11528fd37489987bd3f438c47896e426615e0361e241f1d3c89f8e3
Nov 07 09:42:47.696 INFO running `"docker" "start" "-a" "74eda718a11528fd37489987bd3f438c47896e426615e0361e241f1d3c89f8e3"`
Nov 07 09:42:48.288 INFO kablam! usermod: no changes
Nov 07 09:42:48.383 INFO kablam!    Compiling rayon v0.7.1
Nov 07 09:42:51.328 INFO kablam!    Compiling ring v0.9.7
Nov 07 09:42:58.455 INFO kablam!     Checking ruma-signatures v0.4.0 (/source)
Nov 07 09:43:00.038 INFO kablam! warning: variable does not need to be mutable
Nov 07 09:43:00.038 INFO kablam!    --> src/lib.rs:196:13
Nov 07 09:43:00.038 INFO kablam!     |
Nov 07 09:43:00.038 INFO kablam! 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Nov 07 09:43:00.038 INFO kablam!     |             ----^^^^^^
Nov 07 09:43:00.038 INFO kablam!     |             |
Nov 07 09:43:00.038 INFO kablam!     |             help: remove this `mut`
Nov 07 09:43:00.038 INFO kablam!     |
Nov 07 09:43:00.038 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 07 09:43:00.038 INFO kablam! 
Nov 07 09:43:00.360 INFO kablam! warning: variable does not need to be mutable
Nov 07 09:43:00.360 INFO kablam!    --> src/lib.rs:196:13
Nov 07 09:43:00.360 INFO kablam!     |
Nov 07 09:43:00.360 INFO kablam! 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Nov 07 09:43:00.360 INFO kablam!     |             ----^^^^^^
Nov 07 09:43:00.360 INFO kablam!     |             |
Nov 07 09:43:00.360 INFO kablam!     |             help: remove this `mut`
Nov 07 09:43:00.360 INFO kablam!     |
Nov 07 09:43:00.360 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 07 09:43:00.360 INFO kablam! 
Nov 07 09:43:00.496 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 12.19s
Nov 07 09:43:00.516 INFO kablam! su: No module specific data is present
Nov 07 09:43:01.151 INFO running `"docker" "rm" "-f" "74eda718a11528fd37489987bd3f438c47896e426615e0361e241f1d3c89f8e3"`
Nov 07 09:43:01.380 INFO blam! 74eda718a11528fd37489987bd3f438c47896e426615e0361e241f1d3c89f8e3