Dec 12 03:10:18.152 INFO checking DewarM/udp-example against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 03:10:18.152 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 12 03:10:18.506 INFO [stdout] ae004d7b552289b820a042ac075092227358f672c12c202922fe0da337aa2c49
Dec 12 03:10:18.508 INFO running `"docker" "start" "-a" "ae004d7b552289b820a042ac075092227358f672c12c202922fe0da337aa2c49"`
Dec 12 03:10:20.072 INFO [stderr] usermod: no changes
Dec 12 03:10:20.152 INFO [stderr]     Checking udp-expt v0.1.0 (/source)
Dec 12 03:10:20.856 INFO [stderr] warning: unused variable: `i`
Dec 12 03:10:20.856 INFO [stderr]   --> src/packet/state.rs:15:13
Dec 12 03:10:20.856 INFO [stderr]    |
Dec 12 03:10:20.856 INFO [stderr] 15 |         for i in 0..len {
Dec 12 03:10:20.856 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 12 03:10:20.856 INFO [stderr]    |
Dec 12 03:10:20.856 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 03:10:20.856 INFO [stderr] 
Dec 12 03:10:20.876 INFO [stderr] warning: method is never used: `write_to`
Dec 12 03:10:20.876 INFO [stderr]   --> src/packet/position.rs:14:5
Dec 12 03:10:20.876 INFO [stderr]    |
Dec 12 03:10:20.876 INFO [stderr] 14 |     pub fn write_to(&self, buf: &mut Buffer<u8>) {
Dec 12 03:10:20.876 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:10:20.876 INFO [stderr]    |
Dec 12 03:10:20.876 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 03:10:20.876 INFO [stderr] 
Dec 12 03:10:20.876 INFO [stderr] warning: method is never used: `write_to`
Dec 12 03:10:20.876 INFO [stderr]   --> src/packet/state.rs:21:5
Dec 12 03:10:20.876 INFO [stderr]    |
Dec 12 03:10:20.876 INFO [stderr] 21 |     pub fn write_to(&mut self, buf: &mut Buffer<u8>) {
Dec 12 03:10:20.876 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:10:20.876 INFO [stderr] 
Dec 12 03:10:20.986 INFO [stderr] warning: unused variable: `i`
Dec 12 03:10:20.986 INFO [stderr]   --> src/packet/state.rs:15:13
Dec 12 03:10:20.986 INFO [stderr]    |
Dec 12 03:10:20.987 INFO [stderr] 15 |         for i in 0..len {
Dec 12 03:10:20.987 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 12 03:10:20.987 INFO [stderr]    |
Dec 12 03:10:20.992 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 03:10:20.992 INFO [stderr] 
Dec 12 03:10:21.013 INFO [stderr] warning: method is never used: `write_to`
Dec 12 03:10:21.013 INFO [stderr]   --> src/packet/position.rs:14:5
Dec 12 03:10:21.013 INFO [stderr]    |
Dec 12 03:10:21.013 INFO [stderr] 14 |     pub fn write_to(&self, buf: &mut Buffer<u8>) {
Dec 12 03:10:21.013 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:10:21.014 INFO [stderr]    |
Dec 12 03:10:21.014 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 03:10:21.014 INFO [stderr] 
Dec 12 03:10:21.040 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
Dec 12 03:10:21.042 INFO [stderr] su: No module specific data is present
Dec 12 03:10:22.107 INFO running `"docker" "inspect" "ae004d7b552289b820a042ac075092227358f672c12c202922fe0da337aa2c49"`
Dec 12 03:10:22.421 INFO running `"docker" "rm" "-f" "ae004d7b552289b820a042ac075092227358f672c12c202922fe0da337aa2c49"`
Dec 12 03:10:22.696 INFO [stdout] ae004d7b552289b820a042ac075092227358f672c12c202922fe0da337aa2c49