Nov 01 14:18:24.337 INFO checking variable_size_byte_writer-0.1.5 against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 14:18:24.337 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 14:18:24.629 INFO blam! 307f5cf1f10f3aca7d991d356b92468963e374506d98cc98266e3a19212b828e
Nov 01 14:18:24.632 INFO running `"docker" "start" "-a" "307f5cf1f10f3aca7d991d356b92468963e374506d98cc98266e3a19212b828e"`
Nov 01 14:18:25.420 INFO kablam! usermod: no changes
Nov 01 14:18:25.459 INFO kablam!     Checking typenum_loops v0.2.0
Nov 01 14:18:25.988 INFO kablam!     Checking variable_size_byte_writer v0.1.5 (/source)
Nov 01 14:18:27.312 INFO kablam! warning: variable does not need to be mutable
Nov 01 14:18:27.312 INFO kablam!   --> benches/benches.rs:11:9
Nov 01 14:18:27.312 INFO kablam!    |
Nov 01 14:18:27.312 INFO kablam! 11 |     let mut target = std::io::Cursor::new(vec![]);
Nov 01 14:18:27.312 INFO kablam!    |         ----^^^^^^
Nov 01 14:18:27.312 INFO kablam!    |         |
Nov 01 14:18:27.312 INFO kablam!    |         help: remove this `mut`
Nov 01 14:18:27.312 INFO kablam!    |
Nov 01 14:18:27.312 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 01 14:18:27.312 INFO kablam! 
Nov 01 14:18:27.312 INFO kablam! warning: variable does not need to be mutable
Nov 01 14:18:27.312 INFO kablam!   --> benches/benches.rs:32:9
Nov 01 14:18:27.312 INFO kablam!    |
Nov 01 14:18:27.312 INFO kablam! 32 |     let mut target = std::io::Cursor::new(vec![]);
Nov 01 14:18:27.312 INFO kablam!    |         ----^^^^^^
Nov 01 14:18:27.313 INFO kablam!    |         |
Nov 01 14:18:27.313 INFO kablam!    |         help: remove this `mut`
Nov 01 14:18:27.313 INFO kablam! 
Nov 01 14:18:27.320 INFO kablam! warning: variable does not need to be mutable
Nov 01 14:18:27.320 INFO kablam!   --> benches/benches.rs:53:9
Nov 01 14:18:27.320 INFO kablam!    |
Nov 01 14:18:27.320 INFO kablam! 53 |     let mut target = std::io::Cursor::new(vec![]);
Nov 01 14:18:27.320 INFO kablam!    |         ----^^^^^^
Nov 01 14:18:27.320 INFO kablam!    |         |
Nov 01 14:18:27.320 INFO kablam!    |         help: remove this `mut`
Nov 01 14:18:27.320 INFO kablam! 
Nov 01 14:18:27.362 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.93s
Nov 01 14:18:27.366 INFO kablam! su: No module specific data is present
Nov 01 14:18:28.282 INFO running `"docker" "rm" "-f" "307f5cf1f10f3aca7d991d356b92468963e374506d98cc98266e3a19212b828e"`
Nov 01 14:18:28.425 INFO blam! 307f5cf1f10f3aca7d991d356b92468963e374506d98cc98266e3a19212b828e