Oct 21 22:19:00.613 INFO checking xi-rpc-0.2.0 against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192
Oct 21 22:19:00.614 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192/worker-5/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-5/pr-55192/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-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 21 22:19:00.985 INFO blam! bd2c659398bad33f940576fa2cd54038d9dc20ef11542245d062bb426d7bb78f
Oct 21 22:19:00.987 INFO running `"docker" "start" "-a" "bd2c659398bad33f940576fa2cd54038d9dc20ef11542245d062bb426d7bb78f"`
Oct 21 22:19:02.029 INFO kablam! usermod: no changes
Oct 21 22:19:02.117 INFO kablam!     Checking serde_json v0.9.10
Oct 21 22:19:04.292 INFO kablam!     Checking xi-rpc v0.2.0 (/source)
Oct 21 22:19:05.653 INFO kablam! warning: variable does not need to be mutable
Oct 21 22:19:05.653 INFO kablam!    --> src/lib.rs:326:13
Oct 21 22:19:05.653 INFO kablam!     |
Oct 21 22:19:05.653 INFO kablam! 326 |         let mut dict = response.as_object_mut().unwrap();
Oct 21 22:19:05.653 INFO kablam!     |             ----^^^^
Oct 21 22:19:05.653 INFO kablam!     |             |
Oct 21 22:19:05.653 INFO kablam!     |             help: remove this `mut`
Oct 21 22:19:05.653 INFO kablam!     |
Oct 21 22:19:05.653 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 21 22:19:05.653 INFO kablam! 
Oct 21 22:19:05.668 INFO kablam! warning: variable does not need to be mutable
Oct 21 22:19:05.668 INFO kablam!    --> src/lib.rs:393:9
Oct 21 22:19:05.668 INFO kablam!     |
Oct 21 22:19:05.668 INFO kablam! 393 |     let mut dict_ref = dict.as_object_mut().expect("dict_add_value passed non-object.");
Oct 21 22:19:05.668 INFO kablam!     |         ----^^^^^^^^
Oct 21 22:19:05.668 INFO kablam!     |         |
Oct 21 22:19:05.668 INFO kablam!     |         help: remove this `mut`
Oct 21 22:19:05.668 INFO kablam! 
Oct 21 22:19:05.872 INFO kablam! warning: variable does not need to be mutable
Oct 21 22:19:05.872 INFO kablam!    --> src/lib.rs:326:13
Oct 21 22:19:05.872 INFO kablam!     |
Oct 21 22:19:05.873 INFO kablam! 326 |         let mut dict = response.as_object_mut().unwrap();
Oct 21 22:19:05.873 INFO kablam!     |             ----^^^^
Oct 21 22:19:05.873 INFO kablam!     |             |
Oct 21 22:19:05.873 INFO kablam!     |             help: remove this `mut`
Oct 21 22:19:05.873 INFO kablam!     |
Oct 21 22:19:05.873 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 21 22:19:05.873 INFO kablam! 
Oct 21 22:19:05.873 INFO kablam! warning: variable does not need to be mutable
Oct 21 22:19:05.873 INFO kablam!    --> src/lib.rs:393:9
Oct 21 22:19:05.873 INFO kablam!     |
Oct 21 22:19:05.873 INFO kablam! 393 |     let mut dict_ref = dict.as_object_mut().expect("dict_add_value passed non-object.");
Oct 21 22:19:05.873 INFO kablam!     |         ----^^^^^^^^
Oct 21 22:19:05.873 INFO kablam!     |         |
Oct 21 22:19:05.873 INFO kablam!     |         help: remove this `mut`
Oct 21 22:19:05.873 INFO kablam! 
Oct 21 22:19:06.692 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.61s
Oct 21 22:19:06.700 INFO kablam! su: No module specific data is present
Oct 21 22:19:07.145 INFO running `"docker" "rm" "-f" "bd2c659398bad33f940576fa2cd54038d9dc20ef11542245d062bb426d7bb78f"`
Oct 21 22:19:07.364 INFO blam! bd2c659398bad33f940576fa2cd54038d9dc20ef11542245d062bb426d7bb78f