Aug 31 15:55:09.264 INFO checking ruma-signatures-0.4.0 against master#d0d81b7fc1421859ba0218e8a437af29ae3b0967 for pr-53578
Aug 31 15:55:09.264 INFO running: cargo +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets
Aug 31 15:55:09.264 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53578/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-2/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/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=500" "-e" "CMD=cargo +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 15:55:09.481 INFO blam! 5f6847d0868ed2a2759a854a54d5e1205d4bd4db467f5e07b4e98edaa25bc566
Aug 31 15:55:09.481 INFO running `"docker" "start" "-a" "5f6847d0868ed2a2759a854a54d5e1205d4bd4db467f5e07b4e98edaa25bc566"`
Aug 31 15:55:10.111 INFO kablam!    Compiling ring v0.9.7
Aug 31 15:55:16.723 INFO kablam!     Checking ruma-signatures v0.4.0 (file:///source)
Aug 31 15:55:17.817 INFO kablam! warning: variable does not need to be mutable
Aug 31 15:55:17.817 INFO kablam!    --> src/lib.rs:196:13
Aug 31 15:55:17.817 INFO kablam!     |
Aug 31 15:55:17.817 INFO kablam! 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Aug 31 15:55:17.817 INFO kablam!     |             ----^^^^^^
Aug 31 15:55:17.817 INFO kablam!     |             |
Aug 31 15:55:17.817 INFO kablam!     |             help: remove this `mut`
Aug 31 15:55:17.817 INFO kablam!     |
Aug 31 15:55:17.817 INFO kablam!     = note: #[warn(unused_mut)] on by default
Aug 31 15:55:17.817 INFO kablam! 
Aug 31 15:55:17.868 INFO kablam! warning: variable does not need to be mutable
Aug 31 15:55:17.868 INFO kablam!    --> src/lib.rs:196:13
Aug 31 15:55:17.868 INFO kablam!     |
Aug 31 15:55:17.868 INFO kablam! 196 |         let mut object = owned_value.as_object_mut().expect("safe since we checked above");
Aug 31 15:55:17.868 INFO kablam!     |             ----^^^^^^
Aug 31 15:55:17.868 INFO kablam!     |             |
Aug 31 15:55:17.868 INFO kablam!     |             help: remove this `mut`
Aug 31 15:55:17.868 INFO kablam!     |
Aug 31 15:55:17.868 INFO kablam!     = note: #[warn(unused_mut)] on by default
Aug 31 15:55:17.868 INFO kablam! 
Aug 31 15:55:18.006 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 7.96s
Aug 31 15:55:18.012 INFO kablam! su: No module specific data is present
Aug 31 15:55:18.397 INFO running `"docker" "rm" "-f" "5f6847d0868ed2a2759a854a54d5e1205d4bd4db467f5e07b4e98edaa25bc566"`
Aug 31 15:55:18.508 INFO blam! 5f6847d0868ed2a2759a854a54d5e1205d4bd4db467f5e07b4e98edaa25bc566