Dec 05 08:07:52.445 INFO checking rmp-0.8.7 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 08:07:52.446 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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"`
Dec 05 08:07:52.891 INFO [stdout] f18b37bcd9a2eb82b5ed473cbb0949c067f19c735bc9aafc1448bfd3083049ca
Dec 05 08:07:52.892 INFO running `"docker" "start" "-a" "f18b37bcd9a2eb82b5ed473cbb0949c067f19c735bc9aafc1448bfd3083049ca"`
Dec 05 08:07:53.603 INFO [stderr] usermod: no changes
Dec 05 08:07:53.695 INFO [stderr]     Checking rmp v0.8.7 (/source)
Dec 05 08:07:54.203 INFO [stderr] warning: use of deprecated item 'decode::str::read_str_ref': useless, use `read_str_from_slice` instead
Dec 05 08:07:54.203 INFO [stderr]   --> src/decode/mod.rs:21:66
Dec 05 08:07:54.203 INFO [stderr]    |
Dec 05 08:07:54.203 INFO [stderr] 21 | pub use self::str::{read_str_len, read_str, read_str_from_slice, read_str_ref, DecodeStringError};
Dec 05 08:07:54.203 INFO [stderr]    |                                                                  ^^^^^^^^^^^^
Dec 05 08:07:54.203 INFO [stderr]    |
Dec 05 08:07:54.203 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 05 08:07:54.203 INFO [stderr] 
Dec 05 08:07:54.355 INFO [stderr] warning: use of deprecated item 'decode::str::read_str_ref': useless, use `read_str_from_slice` instead
Dec 05 08:07:54.355 INFO [stderr]   --> src/decode/mod.rs:21:66
Dec 05 08:07:54.355 INFO [stderr]    |
Dec 05 08:07:54.355 INFO [stderr] 21 | pub use self::str::{read_str_len, read_str, read_str_from_slice, read_str_ref, DecodeStringError};
Dec 05 08:07:54.355 INFO [stderr]    |                                                                  ^^^^^^^^^^^^
Dec 05 08:07:54.355 INFO [stderr]    |
Dec 05 08:07:54.355 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 05 08:07:54.355 INFO [stderr] 
Dec 05 08:07:54.523 INFO [stderr] warning: variable does not need to be mutable
Dec 05 08:07:54.523 INFO [stderr]    --> src/decode/str.rs:110:36
Dec 05 08:07:54.523 INFO [stderr]     |
Dec 05 08:07:54.523 INFO [stderr] 110 | pub fn read_str<'r, R>(rd: &mut R, mut buf: &'r mut [u8]) -> Result<&'r str, DecodeStringError<'r>>
Dec 05 08:07:54.523 INFO [stderr]     |                                    ----^^^
Dec 05 08:07:54.523 INFO [stderr]     |                                    |
Dec 05 08:07:54.523 INFO [stderr]     |                                    help: remove this `mut`
Dec 05 08:07:54.523 INFO [stderr]     |
Dec 05 08:07:54.523 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 08:07:54.523 INFO [stderr] 
Dec 05 08:07:54.639 INFO [stderr] warning: variable does not need to be mutable
Dec 05 08:07:54.639 INFO [stderr]    --> src/decode/str.rs:110:36
Dec 05 08:07:54.640 INFO [stderr]     |
Dec 05 08:07:54.640 INFO [stderr] 110 | pub fn read_str<'r, R>(rd: &mut R, mut buf: &'r mut [u8]) -> Result<&'r str, DecodeStringError<'r>>
Dec 05 08:07:54.640 INFO [stderr]     |                                    ----^^^
Dec 05 08:07:54.643 INFO [stderr]     |                                    |
Dec 05 08:07:54.643 INFO [stderr]     |                                    help: remove this `mut`
Dec 05 08:07:54.649 INFO [stderr]     |
Dec 05 08:07:54.649 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 08:07:54.649 INFO [stderr] 
Dec 05 08:07:57.691 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.05s
Dec 05 08:07:57.696 INFO [stderr] su: No module specific data is present
Dec 05 08:07:58.520 INFO running `"docker" "inspect" "f18b37bcd9a2eb82b5ed473cbb0949c067f19c735bc9aafc1448bfd3083049ca"`
Dec 05 08:07:58.839 INFO running `"docker" "rm" "-f" "f18b37bcd9a2eb82b5ed473cbb0949c067f19c735bc9aafc1448bfd3083049ca"`
Dec 05 08:07:59.231 INFO [stdout] f18b37bcd9a2eb82b5ed473cbb0949c067f19c735bc9aafc1448bfd3083049ca