Oct 13 06:05:53.643 INFO checking xi-rpc-0.2.0 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 06:05:53.644 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-0/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-0/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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 13 06:05:54.000 INFO blam! 9ad8aeb495f100f49ad81645069afdcd45ebafcee163f34629e3b2ea5fdf8b06
Oct 13 06:05:54.002 INFO running `"docker" "start" "-a" "9ad8aeb495f100f49ad81645069afdcd45ebafcee163f34629e3b2ea5fdf8b06"`
Oct 13 06:05:54.465 INFO kablam! usermod: no changes
Oct 13 06:05:54.536 INFO kablam!     Checking serde_json v0.9.10
Oct 13 06:05:56.472 INFO kablam!     Checking xi-rpc v0.2.0 (/source)
Oct 13 06:05:57.551 INFO kablam! warning: variable does not need to be mutable
Oct 13 06:05:57.551 INFO kablam!    --> src/lib.rs:326:13
Oct 13 06:05:57.551 INFO kablam!     |
Oct 13 06:05:57.551 INFO kablam! 326 |         let mut dict = response.as_object_mut().unwrap();
Oct 13 06:05:57.551 INFO kablam!     |             ----^^^^
Oct 13 06:05:57.551 INFO kablam!     |             |
Oct 13 06:05:57.551 INFO kablam!     |             help: remove this `mut`
Oct 13 06:05:57.551 INFO kablam!     |
Oct 13 06:05:57.551 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 13 06:05:57.551 INFO kablam! 
Oct 13 06:05:57.560 INFO kablam! warning: variable does not need to be mutable
Oct 13 06:05:57.560 INFO kablam!    --> src/lib.rs:393:9
Oct 13 06:05:57.560 INFO kablam!     |
Oct 13 06:05:57.560 INFO kablam! 393 |     let mut dict_ref = dict.as_object_mut().expect("dict_add_value passed non-object.");
Oct 13 06:05:57.560 INFO kablam!     |         ----^^^^^^^^
Oct 13 06:05:57.560 INFO kablam!     |         |
Oct 13 06:05:57.560 INFO kablam!     |         help: remove this `mut`
Oct 13 06:05:57.560 INFO kablam! 
Oct 13 06:05:58.072 INFO kablam! warning: variable does not need to be mutable
Oct 13 06:05:58.072 INFO kablam!    --> src/lib.rs:326:13
Oct 13 06:05:58.072 INFO kablam!     |
Oct 13 06:05:58.072 INFO kablam! 326 |         let mut dict = response.as_object_mut().unwrap();
Oct 13 06:05:58.072 INFO kablam!     |             ----^^^^
Oct 13 06:05:58.072 INFO kablam!     |             |
Oct 13 06:05:58.072 INFO kablam!     |             help: remove this `mut`
Oct 13 06:05:58.073 INFO kablam!     |
Oct 13 06:05:58.073 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 13 06:05:58.073 INFO kablam! 
Oct 13 06:05:58.080 INFO kablam! warning: variable does not need to be mutable
Oct 13 06:05:58.080 INFO kablam!    --> src/lib.rs:393:9
Oct 13 06:05:58.080 INFO kablam!     |
Oct 13 06:05:58.080 INFO kablam! 393 |     let mut dict_ref = dict.as_object_mut().expect("dict_add_value passed non-object.");
Oct 13 06:05:58.080 INFO kablam!     |         ----^^^^^^^^
Oct 13 06:05:58.080 INFO kablam!     |         |
Oct 13 06:05:58.080 INFO kablam!     |         help: remove this `mut`
Oct 13 06:05:58.080 INFO kablam! 
Oct 13 06:05:58.616 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.13s
Oct 13 06:05:58.628 INFO kablam! su: No module specific data is present
Oct 13 06:05:59.060 INFO running `"docker" "rm" "-f" "9ad8aeb495f100f49ad81645069afdcd45ebafcee163f34629e3b2ea5fdf8b06"`
Oct 13 06:05:59.183 INFO blam! 9ad8aeb495f100f49ad81645069afdcd45ebafcee163f34629e3b2ea5fdf8b06