Sep 21 04:12:42.747 INFO checking ruma-signatures-0.4.0 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 04:12:42.747 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 04:12:42.747 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-4/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 04:12:42.879 INFO blam! bfb8e0a3422ba50c04650fdaddfdf40309b1ab7075323c5536b8ff6152f38e12
Sep 21 04:12:42.881 INFO running `"docker" "start" "-a" "bfb8e0a3422ba50c04650fdaddfdf40309b1ab7075323c5536b8ff6152f38e12"`
Sep 21 04:12:44.190 INFO kablam! usermod: no changes
Sep 21 04:12:44.248 INFO kablam!    Compiling ring v0.9.7
Sep 21 04:12:49.085 INFO kablam!     Checking ruma-signatures v0.4.0 (/source)
Sep 21 04:12:49.608 INFO kablam! warning: variable does not need to be mutable
Sep 21 04:12:49.608 INFO kablam!    --> src/lib.rs:196:13
Sep 21 04:12:49.608 INFO kablam!     |
Sep 21 04:12:49.608 INFO kablam! 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Sep 21 04:12:49.608 INFO kablam!     |             ----^^^^^^
Sep 21 04:12:49.608 INFO kablam!     |             |
Sep 21 04:12:49.608 INFO kablam!     |             help: remove this `mut`
Sep 21 04:12:49.608 INFO kablam!     |
Sep 21 04:12:49.609 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 21 04:12:49.609 INFO kablam! 
Sep 21 04:12:49.715 INFO kablam! warning: variable does not need to be mutable
Sep 21 04:12:49.715 INFO kablam!    --> src/lib.rs:196:13
Sep 21 04:12:49.715 INFO kablam!     |
Sep 21 04:12:49.715 INFO kablam! 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Sep 21 04:12:49.715 INFO kablam!     |             ----^^^^^^
Sep 21 04:12:49.715 INFO kablam!     |             |
Sep 21 04:12:49.715 INFO kablam!     |             help: remove this `mut`
Sep 21 04:12:49.715 INFO kablam!     |
Sep 21 04:12:49.715 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 21 04:12:49.715 INFO kablam! 
Sep 21 04:12:49.830 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.61s
Sep 21 04:12:49.842 INFO kablam! su: No module specific data is present
Sep 21 04:12:50.622 INFO running `"docker" "rm" "-f" "bfb8e0a3422ba50c04650fdaddfdf40309b1ab7075323c5536b8ff6152f38e12"`
Sep 21 04:12:50.819 INFO blam! bfb8e0a3422ba50c04650fdaddfdf40309b1ab7075323c5536b8ff6152f38e12