Dec 05 07:44:03.789 INFO checking ruma-signatures-0.4.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 07:44:03.789 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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"`
Dec 05 07:44:03.952 INFO [stdout] edf40bf4e6e649de43db1fc9102693abd9eae705ab1b2481dcc969d94e7016c9
Dec 05 07:44:03.957 INFO running `"docker" "start" "-a" "edf40bf4e6e649de43db1fc9102693abd9eae705ab1b2481dcc969d94e7016c9"`
Dec 05 07:44:04.512 INFO [stderr] usermod: no changes
Dec 05 07:44:04.589 INFO [stderr]    Compiling ring v0.9.7
Dec 05 07:44:10.541 INFO [stderr]     Checking ruma-signatures v0.4.0 (/source)
Dec 05 07:44:12.367 INFO [stderr] warning: variable does not need to be mutable
Dec 05 07:44:12.367 INFO [stderr]    --> src/lib.rs:196:13
Dec 05 07:44:12.367 INFO [stderr]     |
Dec 05 07:44:12.367 INFO [stderr] 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Dec 05 07:44:12.367 INFO [stderr]     |             ----^^^^^^
Dec 05 07:44:12.367 INFO [stderr]     |             |
Dec 05 07:44:12.367 INFO [stderr]     |             help: remove this `mut`
Dec 05 07:44:12.367 INFO [stderr]     |
Dec 05 07:44:12.367 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 07:44:12.367 INFO [stderr] 
Dec 05 07:44:12.888 INFO [stderr] warning: variable does not need to be mutable
Dec 05 07:44:12.888 INFO [stderr]    --> src/lib.rs:196:13
Dec 05 07:44:12.888 INFO [stderr]     |
Dec 05 07:44:12.888 INFO [stderr] 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Dec 05 07:44:12.888 INFO [stderr]     |             ----^^^^^^
Dec 05 07:44:12.888 INFO [stderr]     |             |
Dec 05 07:44:12.888 INFO [stderr]     |             help: remove this `mut`
Dec 05 07:44:12.888 INFO [stderr]     |
Dec 05 07:44:12.889 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 07:44:12.889 INFO [stderr] 
Dec 05 07:44:13.027 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.49s
Dec 05 07:44:13.035 INFO [stderr] su: No module specific data is present
Dec 05 07:44:14.061 INFO running `"docker" "inspect" "edf40bf4e6e649de43db1fc9102693abd9eae705ab1b2481dcc969d94e7016c9"`
Dec 05 07:44:14.341 INFO running `"docker" "rm" "-f" "edf40bf4e6e649de43db1fc9102693abd9eae705ab1b2481dcc969d94e7016c9"`
Dec 05 07:44:14.599 INFO [stdout] edf40bf4e6e649de43db1fc9102693abd9eae705ab1b2481dcc969d94e7016c9