Oct 27 16:45:08.815 INFO checking ruma-signatures-0.4.0 against try#19f01b935b91481fd445b16b533d2f87661bf12e for pr-55192-2
Oct 27 16:45:08.815 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-3/try#19f01b935b91481fd445b16b533d2f87661bf12e:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-3/pr-55192-2/try#19f01b935b91481fd445b16b533d2f87661bf12e:/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 +19f01b935b91481fd445b16b533d2f87661bf12e-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"`
Oct 27 16:45:09.022 INFO blam! d90491229c6f6a35845e85c2bce2efe4b95d496ecd1bc7712f31a16c39c58aac
Oct 27 16:45:09.024 INFO running `"docker" "start" "-a" "d90491229c6f6a35845e85c2bce2efe4b95d496ecd1bc7712f31a16c39c58aac"`
Oct 27 16:45:09.336 INFO kablam! usermod: no changes
Oct 27 16:45:09.422 INFO kablam!    Compiling ring v0.9.7
Oct 27 16:45:16.338 INFO kablam!     Checking ruma-signatures v0.4.0 (/source)
Oct 27 16:45:18.095 INFO kablam! warning: variable does not need to be mutable
Oct 27 16:45:18.095 INFO kablam!    --> src/lib.rs:196:13
Oct 27 16:45:18.096 INFO kablam!     |
Oct 27 16:45:18.096 INFO kablam! 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Oct 27 16:45:18.096 INFO kablam!     |             ----^^^^^^
Oct 27 16:45:18.098 INFO kablam!     |             |
Oct 27 16:45:18.098 INFO kablam!     |             help: remove this `mut`
Oct 27 16:45:18.099 INFO kablam!     |
Oct 27 16:45:18.099 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 27 16:45:18.099 INFO kablam! 
Oct 27 16:45:18.467 INFO kablam! warning: variable does not need to be mutable
Oct 27 16:45:18.467 INFO kablam!    --> src/lib.rs:196:13
Oct 27 16:45:18.468 INFO kablam!     |
Oct 27 16:45:18.468 INFO kablam! 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Oct 27 16:45:18.468 INFO kablam!     |             ----^^^^^^
Oct 27 16:45:18.468 INFO kablam!     |             |
Oct 27 16:45:18.469 INFO kablam!     |             help: remove this `mut`
Oct 27 16:45:18.469 INFO kablam!     |
Oct 27 16:45:18.469 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 27 16:45:18.470 INFO kablam! 
Oct 27 16:45:18.639 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 9.28s
Oct 27 16:45:18.641 INFO kablam! su: No module specific data is present
Oct 27 16:45:19.639 INFO running `"docker" "rm" "-f" "d90491229c6f6a35845e85c2bce2efe4b95d496ecd1bc7712f31a16c39c58aac"`
Oct 27 16:45:19.892 INFO blam! d90491229c6f6a35845e85c2bce2efe4b95d496ecd1bc7712f31a16c39c58aac