Dec 18 05:18:01.973 INFO checking Takamichi-tsutsumi/pong against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 05:18:01.973 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/Takamichi-tsutsumi/pong:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 05:18:02.242 INFO [stdout] 38039ab4a8d442811037ab99b970a237b8c953aaa628eff806dcdda3fdf36db6
Dec 18 05:18:02.244 INFO running `"docker" "start" "-a" "38039ab4a8d442811037ab99b970a237b8c953aaa628eff806dcdda3fdf36db6"`
Dec 18 05:18:03.453 INFO [stderr]     Checking pong v0.1.0 (/opt/crater/workdir)
Dec 18 05:18:04.116 INFO [stderr] warning: unused variable: `rx`
Dec 18 05:18:04.116 INFO [stderr]   --> src/main.rs:25:14
Dec 18 05:18:04.116 INFO [stderr]    |
Dec 18 05:18:04.116 INFO [stderr] 25 |     let (tx, rx) = channel();
Dec 18 05:18:04.116 INFO [stderr]    |              ^^ help: consider using `_rx` instead
Dec 18 05:18:04.116 INFO [stderr]    |
Dec 18 05:18:04.116 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 05:18:04.116 INFO [stderr] 
Dec 18 05:18:04.116 INFO [stderr] warning: unused variable: `req`
Dec 18 05:18:04.116 INFO [stderr]   --> src/main.rs:13:22
Dec 18 05:18:04.116 INFO [stderr]    |
Dec 18 05:18:04.116 INFO [stderr] 13 |     fn handle(&self, req: Request, mut res: Response) {
Dec 18 05:18:04.116 INFO [stderr]    |                      ^^^ help: consider using `_req` instead
Dec 18 05:18:04.116 INFO [stderr] 
Dec 18 05:18:04.120 INFO [stderr] warning: unused variable: `rx`
Dec 18 05:18:04.120 INFO [stderr]   --> src/main.rs:25:14
Dec 18 05:18:04.120 INFO [stderr]    |
Dec 18 05:18:04.120 INFO [stderr] 25 |     let (tx, rx) = channel();
Dec 18 05:18:04.120 INFO [stderr]    |              ^^ help: consider using `_rx` instead
Dec 18 05:18:04.121 INFO [stderr]    |
Dec 18 05:18:04.121 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 05:18:04.121 INFO [stderr] 
Dec 18 05:18:04.121 INFO [stderr] warning: unused variable: `req`
Dec 18 05:18:04.121 INFO [stderr]   --> src/main.rs:13:22
Dec 18 05:18:04.121 INFO [stderr]    |
Dec 18 05:18:04.124 INFO [stderr] 13 |     fn handle(&self, req: Request, mut res: Response) {
Dec 18 05:18:04.124 INFO [stderr]    |                      ^^^ help: consider using `_req` instead
Dec 18 05:18:04.124 INFO [stderr] 
Dec 18 05:18:04.139 INFO [stderr] warning: variable does not need to be mutable
Dec 18 05:18:04.139 INFO [stderr]   --> src/main.rs:13:36
Dec 18 05:18:04.139 INFO [stderr]    |
Dec 18 05:18:04.140 INFO [stderr] 13 |     fn handle(&self, req: Request, mut res: Response) {
Dec 18 05:18:04.140 INFO [stderr]    |                                    ----^^^
Dec 18 05:18:04.140 INFO [stderr]    |                                    |
Dec 18 05:18:04.140 INFO [stderr]    |                                    help: remove this `mut`
Dec 18 05:18:04.140 INFO [stderr] warning: variable does not need to be mutable
Dec 18 05:18:04.140 INFO [stderr]   --> src/main.rs:13:36
Dec 18 05:18:04.140 INFO [stderr]    |
Dec 18 05:18:04.140 INFO [stderr] 13 |     fn handle(&self, req: Request, mut res: Response) {
Dec 18 05:18:04.140 INFO [stderr]    |                                    ----^^^
Dec 18 05:18:04.140 INFO [stderr]    |                                    |
Dec 18 05:18:04.140 INFO [stderr]    |                                    help: remove this `mut`
Dec 18 05:18:04.140 INFO [stderr]    |
Dec 18 05:18:04.140 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 05:18:04.140 INFO [stderr] 
Dec 18 05:18:04.140 INFO [stderr]    |
Dec 18 05:18:04.140 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 05:18:04.140 INFO [stderr] 
Dec 18 05:18:04.183 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
Dec 18 05:18:04.812 INFO running `"docker" "inspect" "38039ab4a8d442811037ab99b970a237b8c953aaa628eff806dcdda3fdf36db6"`
Dec 18 05:18:05.114 INFO running `"docker" "rm" "-f" "38039ab4a8d442811037ab99b970a237b8c953aaa628eff806dcdda3fdf36db6"`
Dec 18 05:18:05.359 INFO [stdout] 38039ab4a8d442811037ab99b970a237b8c953aaa628eff806dcdda3fdf36db6