Oct 12 14:25:43.455 INFO checking saarw/cstruct2rs against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 14:25:43.455 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-7/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/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 12 14:25:43.952 INFO blam! 57c29cc060a79396472389732b48196780e3b11bf8c8c1bddb04a746e8f29490
Oct 12 14:25:43.954 INFO running `"docker" "start" "-a" "57c29cc060a79396472389732b48196780e3b11bf8c8c1bddb04a746e8f29490"`
Oct 12 14:25:45.225 INFO kablam! usermod: no changes
Oct 12 14:25:45.281 INFO kablam!     Checking cstruct2rs v0.0.1 (/source)
Oct 12 14:25:46.041 INFO kablam! warning: variable does not need to be mutable
Oct 12 14:25:46.041 INFO kablam!   --> src/cinfo.rs:90:6
Oct 12 14:25:46.041 INFO kablam!    |
Oct 12 14:25:46.042 INFO kablam! 90 |     let mut name_buf: Cow<String>;
Oct 12 14:25:46.042 INFO kablam!    |         ----^^^^^^^^
Oct 12 14:25:46.042 INFO kablam!    |         |
Oct 12 14:25:46.042 INFO kablam!    |         help: remove this `mut`
Oct 12 14:25:46.043 INFO kablam!    |
Oct 12 14:25:46.043 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 12 14:25:46.043 INFO kablam! 
Oct 12 14:25:46.044 INFO kablam! warning: variable does not need to be mutable
Oct 12 14:25:46.044 INFO kablam!   --> src/cinfo.rs:91:6
Oct 12 14:25:46.044 INFO kablam!    |
Oct 12 14:25:46.045 INFO kablam! 91 |     let mut var_name: Cow<str>;    
Oct 12 14:25:46.045 INFO kablam!    |         ----^^^^^^^^
Oct 12 14:25:46.045 INFO kablam!    |         |
Oct 12 14:25:46.045 INFO kablam!    |         help: remove this `mut`
Oct 12 14:25:46.046 INFO kablam! 
Oct 12 14:25:46.081 INFO kablam! warning: variable does not need to be mutable
Oct 12 14:25:46.081 INFO kablam!   --> src/cinfo.rs:90:6
Oct 12 14:25:46.081 INFO kablam!    |
Oct 12 14:25:46.082 INFO kablam! 90 |     let mut name_buf: Cow<String>;
Oct 12 14:25:46.082 INFO kablam!    |         ----^^^^^^^^
Oct 12 14:25:46.082 INFO kablam!    |         |
Oct 12 14:25:46.083 INFO kablam!    |         help: remove this `mut`
Oct 12 14:25:46.083 INFO kablam!    |
Oct 12 14:25:46.083 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 12 14:25:46.084 INFO kablam! 
Oct 12 14:25:46.084 INFO kablam! warning: variable does not need to be mutable
Oct 12 14:25:46.084 INFO kablam!   --> src/cinfo.rs:91:6
Oct 12 14:25:46.084 INFO kablam!    |
Oct 12 14:25:46.085 INFO kablam! 91 |     let mut var_name: Cow<str>;    
Oct 12 14:25:46.085 INFO kablam!    |         ----^^^^^^^^
Oct 12 14:25:46.085 INFO kablam!    |         |
Oct 12 14:25:46.085 INFO kablam!    |         help: remove this `mut`
Oct 12 14:25:46.086 INFO kablam! 
Oct 12 14:25:46.113 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
Oct 12 14:25:46.119 INFO kablam! su: No module specific data is present
Oct 12 14:25:46.980 INFO running `"docker" "rm" "-f" "57c29cc060a79396472389732b48196780e3b11bf8c8c1bddb04a746e8f29490"`
Oct 12 14:25:47.224 INFO blam! 57c29cc060a79396472389732b48196780e3b11bf8c8c1bddb04a746e8f29490