Sep 10 06:10:12.553 INFO checking x-923-0.1.2 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 06:10:12.553 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 06:10:12.554 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-3/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 06:10:12.831 INFO blam! f817e2c5bf04e9281023e00dc096c592453f0d6f68761e02c384d06e252b0da7
Sep 10 06:10:12.833 INFO running `"docker" "start" "-a" "f817e2c5bf04e9281023e00dc096c592453f0d6f68761e02c384d06e252b0da7"`
Sep 10 06:10:14.058 INFO kablam! usermod: no changes
Sep 10 06:10:14.130 INFO kablam!     Checking x-923 v0.1.2 (file:///source)
Sep 10 06:10:14.466 INFO kablam! warning: variable does not need to be mutable
Sep 10 06:10:14.466 INFO kablam!   --> src/lib.rs:20:19
Sep 10 06:10:14.466 INFO kablam!    |
Sep 10 06:10:14.466 INFO kablam! 20 | pub fn pad_buffer(mut buffer: &mut Vec<u8>, block_size: u8) {
Sep 10 06:10:14.466 INFO kablam!    |                   ----^^^^^^
Sep 10 06:10:14.466 INFO kablam!    |                   |
Sep 10 06:10:14.466 INFO kablam!    |                   help: remove this `mut`
Sep 10 06:10:14.466 INFO kablam!    |
Sep 10 06:10:14.467 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 10 06:10:14.467 INFO kablam! 
Sep 10 06:10:14.467 INFO kablam! warning: variable does not need to be mutable
Sep 10 06:10:14.467 INFO kablam!   --> src/lib.rs:31:22
Sep 10 06:10:14.467 INFO kablam!    |
Sep 10 06:10:14.467 INFO kablam! 31 | pub fn un_pad_buffer(mut buffer: &mut Vec<u8>) {
Sep 10 06:10:14.467 INFO kablam!    |                      ----^^^^^^
Sep 10 06:10:14.467 INFO kablam!    |                      |
Sep 10 06:10:14.467 INFO kablam!    |                      help: remove this `mut`
Sep 10 06:10:14.467 INFO kablam! 
Sep 10 06:10:14.518 INFO kablam! warning: variable does not need to be mutable
Sep 10 06:10:14.518 INFO kablam!   --> src/lib.rs:20:19
Sep 10 06:10:14.518 INFO kablam!    |
Sep 10 06:10:14.518 INFO kablam! 20 | pub fn pad_buffer(mut buffer: &mut Vec<u8>, block_size: u8) {
Sep 10 06:10:14.518 INFO kablam!    |                   ----^^^^^^
Sep 10 06:10:14.518 INFO kablam!    |                   |
Sep 10 06:10:14.518 INFO kablam!    |                   help: remove this `mut`
Sep 10 06:10:14.518 INFO kablam!    |
Sep 10 06:10:14.518 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 10 06:10:14.518 INFO kablam! 
Sep 10 06:10:14.518 INFO kablam! warning: variable does not need to be mutable
Sep 10 06:10:14.518 INFO kablam!   --> src/lib.rs:31:22
Sep 10 06:10:14.518 INFO kablam!    |
Sep 10 06:10:14.518 INFO kablam! 31 | pub fn un_pad_buffer(mut buffer: &mut Vec<u8>) {
Sep 10 06:10:14.518 INFO kablam!    |                      ----^^^^^^
Sep 10 06:10:14.518 INFO kablam!    |                      |
Sep 10 06:10:14.518 INFO kablam!    |                      help: remove this `mut`
Sep 10 06:10:14.518 INFO kablam! 
Sep 10 06:10:14.906 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
Sep 10 06:10:14.906 INFO kablam! su: No module specific data is present
Sep 10 06:10:15.748 INFO running `"docker" "rm" "-f" "f817e2c5bf04e9281023e00dc096c592453f0d6f68761e02c384d06e252b0da7"`
Sep 10 06:10:15.857 INFO blam! f817e2c5bf04e9281023e00dc096c592453f0d6f68761e02c384d06e252b0da7