Nov 30 16:36:57.834 INFO checking ruma-signatures-0.4.0 against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 16:36:57.835 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-3/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 30 16:36:58.112 INFO [stdout] 7c3d9b5b1e09885e4fc70297ac4e7792c6ed3e9955ae4c135b545dbf07c12654
Nov 30 16:36:58.116 INFO running `"docker" "start" "-a" "7c3d9b5b1e09885e4fc70297ac4e7792c6ed3e9955ae4c135b545dbf07c12654"`
Nov 30 16:36:58.780 INFO [stderr] usermod: no changes
Nov 30 16:36:58.880 INFO [stderr]    Compiling rayon v0.7.1
Nov 30 16:37:02.072 INFO [stderr]    Compiling ring v0.9.7
Nov 30 16:37:08.265 INFO [stderr]     Checking ruma-signatures v0.4.0 (/source)
Nov 30 16:37:09.924 INFO [stderr] warning: variable does not need to be mutable
Nov 30 16:37:09.924 INFO [stderr]    --> src/lib.rs:196:13
Nov 30 16:37:09.924 INFO [stderr]     |
Nov 30 16:37:09.924 INFO [stderr] 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Nov 30 16:37:09.924 INFO [stderr]     |             ----^^^^^^
Nov 30 16:37:09.924 INFO [stderr]     |             |
Nov 30 16:37:09.924 INFO [stderr]     |             help: remove this `mut`
Nov 30 16:37:09.924 INFO [stderr]     |
Nov 30 16:37:09.924 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 16:37:09.932 INFO [stderr] 
Nov 30 16:37:10.236 INFO [stderr] warning: variable does not need to be mutable
Nov 30 16:37:10.236 INFO [stderr]    --> src/lib.rs:196:13
Nov 30 16:37:10.236 INFO [stderr]     |
Nov 30 16:37:10.236 INFO [stderr] 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Nov 30 16:37:10.236 INFO [stderr]     |             ----^^^^^^
Nov 30 16:37:10.236 INFO [stderr]     |             |
Nov 30 16:37:10.236 INFO [stderr]     |             help: remove this `mut`
Nov 30 16:37:10.236 INFO [stderr]     |
Nov 30 16:37:10.236 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 16:37:10.236 INFO [stderr] 
Nov 30 16:37:10.342 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.54s
Nov 30 16:37:10.348 INFO [stderr] su: No module specific data is present
Nov 30 16:37:10.967 INFO running `"docker" "inspect" "7c3d9b5b1e09885e4fc70297ac4e7792c6ed3e9955ae4c135b545dbf07c12654"`
Nov 30 16:37:11.214 INFO running `"docker" "rm" "-f" "7c3d9b5b1e09885e4fc70297ac4e7792c6ed3e9955ae4c135b545dbf07c12654"`
Nov 30 16:37:11.572 INFO [stdout] 7c3d9b5b1e09885e4fc70297ac4e7792c6ed3e9955ae4c135b545dbf07c12654