Oct 12 23:14:55.345 INFO checking crumblingstatue/rgen3 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 23:14:55.347 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 12 23:14:55.760 INFO blam! c25dcbe910a445a9de70010cb2fbe6bda82dcdee4678aad3f097764a9593f08d
Oct 12 23:14:55.774 INFO running `"docker" "start" "-a" "c25dcbe910a445a9de70010cb2fbe6bda82dcdee4678aad3f097764a9593f08d"`
Oct 12 23:14:56.880 INFO kablam! usermod: no changes
Oct 12 23:14:56.996 INFO kablam!     Checking regex-syntax v0.3.4
Oct 12 23:14:57.000 INFO kablam!     Checking rgen3-string v0.1.0 (/source/rgen3-string)
Oct 12 23:14:57.000 INFO kablam!     Checking memchr v0.1.11
Oct 12 23:14:57.009 INFO kablam!     Checking thread-id v2.0.0
Oct 12 23:14:58.649 INFO kablam!     Checking thread_local v0.2.6
Oct 12 23:14:58.768 INFO kablam!     Checking rgen3-save v0.1.0 (/source/rgen3-save)
Oct 12 23:14:59.496 INFO kablam!     Checking aho-corasick v0.5.2
Oct 12 23:15:02.968 INFO kablam! warning: variable does not need to be mutable
Oct 12 23:15:02.970 INFO kablam!    --> rgen3-save/src/rw.rs:272:24
Oct 12 23:15:02.970 INFO kablam!     |
Oct 12 23:15:02.971 INFO kablam! 272 |     fn read(&mut self, mut buf: &mut [u8]) -> io::Result<usize> {
Oct 12 23:15:02.971 INFO kablam!     |                        ----^^^
Oct 12 23:15:02.972 INFO kablam!     |                        |
Oct 12 23:15:02.973 INFO kablam!     |                        help: remove this `mut`
Oct 12 23:15:02.973 INFO kablam!     |
Oct 12 23:15:02.973 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 12 23:15:02.974 INFO kablam! 
Oct 12 23:15:03.725 INFO kablam!     Checking regex v0.1.73
Oct 12 23:15:06.167 INFO kablam!     Checking env_logger v0.3.4
Oct 12 23:15:09.416 INFO kablam! warning: variable does not need to be mutable
Oct 12 23:15:09.416 INFO kablam!    --> rgen3-save/src/rw.rs:272:24
Oct 12 23:15:09.416 INFO kablam!     |
Oct 12 23:15:09.416 INFO kablam! 272 |     fn read(&mut self, mut buf: &mut [u8]) -> io::Result<usize> {
Oct 12 23:15:09.416 INFO kablam!     |                        ----^^^
Oct 12 23:15:09.416 INFO kablam!     |                        |
Oct 12 23:15:09.416 INFO kablam!     |                        help: remove this `mut`
Oct 12 23:15:09.416 INFO kablam!     |
Oct 12 23:15:09.416 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 12 23:15:09.416 INFO kablam! 
Oct 12 23:15:09.676 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 12.75s
Oct 12 23:15:09.700 INFO kablam! su: No module specific data is present
Oct 12 23:15:11.000 INFO running `"docker" "rm" "-f" "c25dcbe910a445a9de70010cb2fbe6bda82dcdee4678aad3f097764a9593f08d"`
Oct 12 23:15:11.316 INFO blam! c25dcbe910a445a9de70010cb2fbe6bda82dcdee4678aad3f097764a9593f08d