Oct 13 09:33:39.165 INFO checking ruma-signatures-0.4.0 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 09:33:39.166 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-5/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-5/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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 13 09:33:39.564 INFO blam! 680891decfdd12958798a1ba168da263936016c28650830635bf6149d1674f0e
Oct 13 09:33:39.569 INFO running `"docker" "start" "-a" "680891decfdd12958798a1ba168da263936016c28650830635bf6149d1674f0e"`
Oct 13 09:33:39.984 INFO kablam! usermod: no changes
Oct 13 09:33:40.070 INFO kablam!    Compiling ring v0.9.7
Oct 13 09:33:47.110 INFO kablam!     Checking ruma-signatures v0.4.0 (/source)
Oct 13 09:33:49.056 INFO kablam! warning: variable does not need to be mutable
Oct 13 09:33:49.056 INFO kablam!    --> src/lib.rs:196:13
Oct 13 09:33:49.056 INFO kablam!     |
Oct 13 09:33:49.056 INFO kablam! 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Oct 13 09:33:49.056 INFO kablam!     |             ----^^^^^^
Oct 13 09:33:49.056 INFO kablam!     |             |
Oct 13 09:33:49.056 INFO kablam!     |             help: remove this `mut`
Oct 13 09:33:49.056 INFO kablam!     |
Oct 13 09:33:49.056 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 13 09:33:49.056 INFO kablam! 
Oct 13 09:33:49.464 INFO kablam! warning: variable does not need to be mutable
Oct 13 09:33:49.465 INFO kablam!    --> src/lib.rs:196:13
Oct 13 09:33:49.465 INFO kablam!     |
Oct 13 09:33:49.465 INFO kablam! 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Oct 13 09:33:49.466 INFO kablam!     |             ----^^^^^^
Oct 13 09:33:49.466 INFO kablam!     |             |
Oct 13 09:33:49.466 INFO kablam!     |             help: remove this `mut`
Oct 13 09:33:49.466 INFO kablam!     |
Oct 13 09:33:49.467 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 13 09:33:49.467 INFO kablam! 
Oct 13 09:33:49.579 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 9.58s
Oct 13 09:33:49.586 INFO kablam! su: No module specific data is present
Oct 13 09:33:50.113 INFO running `"docker" "rm" "-f" "680891decfdd12958798a1ba168da263936016c28650830635bf6149d1674f0e"`
Oct 13 09:33:50.329 INFO blam! 680891decfdd12958798a1ba168da263936016c28650830635bf6149d1674f0e