Nov 01 23:08:09.954 INFO checking file_diff-1.0.0 against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 23:08:09.955 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-7/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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"`
Nov 01 23:08:10.177 INFO blam! d554371941e45edc74e1845f5882ddbd70960aa1f23b322285f881180d8b6fe1
Nov 01 23:08:10.179 INFO running `"docker" "start" "-a" "d554371941e45edc74e1845f5882ddbd70960aa1f23b322285f881180d8b6fe1"`
Nov 01 23:08:10.700 INFO kablam! usermod: no changes
Nov 01 23:08:10.772 INFO kablam!     Checking file_diff v1.0.0 (/source)
Nov 01 23:08:11.447 INFO kablam! warning: variable does not need to be mutable
Nov 01 23:08:11.447 INFO kablam!   --> src/lib.rs:49:9
Nov 01 23:08:11.447 INFO kablam!    |
Nov 01 23:08:11.447 INFO kablam! 49 |     let mut buff1 : &mut [u8] = &mut [0; 1024];
Nov 01 23:08:11.447 INFO kablam!    |         ----^^^^^
Nov 01 23:08:11.447 INFO kablam!    |         |
Nov 01 23:08:11.447 INFO kablam!    |         help: remove this `mut`
Nov 01 23:08:11.447 INFO kablam!    |
Nov 01 23:08:11.447 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 01 23:08:11.447 INFO kablam! 
Nov 01 23:08:11.447 INFO kablam! warning: variable does not need to be mutable
Nov 01 23:08:11.447 INFO kablam!   --> src/lib.rs:50:9
Nov 01 23:08:11.447 INFO kablam!    |
Nov 01 23:08:11.447 INFO kablam! 50 |     let mut buff2 : &mut [u8] = &mut [0; 1024];
Nov 01 23:08:11.447 INFO kablam!    |         ----^^^^^
Nov 01 23:08:11.450 INFO kablam!    |         |
Nov 01 23:08:11.450 INFO kablam!    |         help: remove this `mut`
Nov 01 23:08:11.450 INFO kablam! 
Nov 01 23:08:11.630 INFO kablam! warning: variable does not need to be mutable
Nov 01 23:08:11.630 INFO kablam!   --> src/lib.rs:49:9
Nov 01 23:08:11.630 INFO kablam!    |
Nov 01 23:08:11.630 INFO kablam! 49 |     let mut buff1 : &mut [u8] = &mut [0; 1024];
Nov 01 23:08:11.630 INFO kablam!    |         ----^^^^^
Nov 01 23:08:11.630 INFO kablam!    |         |
Nov 01 23:08:11.630 INFO kablam!    |         help: remove this `mut`
Nov 01 23:08:11.630 INFO kablam!    |
Nov 01 23:08:11.630 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 01 23:08:11.630 INFO kablam! 
Nov 01 23:08:11.630 INFO kablam! warning: variable does not need to be mutable
Nov 01 23:08:11.630 INFO kablam!   --> src/lib.rs:50:9
Nov 01 23:08:11.630 INFO kablam!    |
Nov 01 23:08:11.630 INFO kablam! 50 |     let mut buff2 : &mut [u8] = &mut [0; 1024];
Nov 01 23:08:11.630 INFO kablam!    |         ----^^^^^
Nov 01 23:08:11.630 INFO kablam!    |         |
Nov 01 23:08:11.630 INFO kablam!    |         help: remove this `mut`
Nov 01 23:08:11.630 INFO kablam! 
Nov 01 23:08:11.652 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
Nov 01 23:08:11.652 INFO kablam! su: No module specific data is present
Nov 01 23:08:12.015 INFO running `"docker" "rm" "-f" "d554371941e45edc74e1845f5882ddbd70960aa1f23b322285f881180d8b6fe1"`
Nov 01 23:08:12.136 INFO blam! d554371941e45edc74e1845f5882ddbd70960aa1f23b322285f881180d8b6fe1