Dec 04 23:56:37.315 INFO checking Takamichi-tsutsumi/pong against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 23:56:37.315 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 23:56:37.672 INFO [stdout] 69ce93a2a808b14379fdfeb84812a2195b038e770bf0ded7574b7dd1e2679e42
Dec 04 23:56:37.674 INFO running `"docker" "start" "-a" "69ce93a2a808b14379fdfeb84812a2195b038e770bf0ded7574b7dd1e2679e42"`
Dec 04 23:56:38.627 INFO [stderr] usermod: no changes
Dec 04 23:56:38.900 INFO [stderr]     Checking pong v0.1.0 (/source)
Dec 04 23:56:40.372 INFO [stderr] warning: unused variable: `rx`
Dec 04 23:56:40.372 INFO [stderr]   --> src/main.rs:25:14
Dec 04 23:56:40.372 INFO [stderr]    |
Dec 04 23:56:40.372 INFO [stderr] 25 |     let (tx, rx) = channel();
Dec 04 23:56:40.372 INFO [stderr]    |              ^^ help: consider using `_rx` instead
Dec 04 23:56:40.372 INFO [stderr]    |
Dec 04 23:56:40.372 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 23:56:40.372 INFO [stderr] 
Dec 04 23:56:40.372 INFO [stderr] warning: unused variable: `req`
Dec 04 23:56:40.372 INFO [stderr]   --> src/main.rs:13:22
Dec 04 23:56:40.372 INFO [stderr]    |
Dec 04 23:56:40.372 INFO [stderr] 13 |     fn handle(&self, req: Request, mut res: Response) {
Dec 04 23:56:40.372 INFO [stderr]    |                      ^^^ help: consider using `_req` instead
Dec 04 23:56:40.372 INFO [stderr] 
Dec 04 23:56:40.385 INFO [stderr] warning: variable does not need to be mutable
Dec 04 23:56:40.385 INFO [stderr]   --> src/main.rs:13:36
Dec 04 23:56:40.385 INFO [stderr]    |
Dec 04 23:56:40.385 INFO [stderr] 13 |     fn handle(&self, req: Request, mut res: Response) {
Dec 04 23:56:40.385 INFO [stderr]    |                                    ----^^^
Dec 04 23:56:40.385 INFO [stderr]    |                                    |
Dec 04 23:56:40.385 INFO [stderr]    |                                    help: remove this `mut`
Dec 04 23:56:40.385 INFO [stderr]    |
Dec 04 23:56:40.385 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 23:56:40.385 INFO [stderr] 
Dec 04 23:56:40.405 INFO [stderr] warning: unused variable: `rx`
Dec 04 23:56:40.405 INFO [stderr]   --> src/main.rs:25:14
Dec 04 23:56:40.405 INFO [stderr]    |
Dec 04 23:56:40.405 INFO [stderr] 25 |     let (tx, rx) = channel();
Dec 04 23:56:40.405 INFO [stderr]    |              ^^ help: consider using `_rx` instead
Dec 04 23:56:40.405 INFO [stderr]    |
Dec 04 23:56:40.405 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 23:56:40.405 INFO [stderr] 
Dec 04 23:56:40.406 INFO [stderr] warning: unused variable: `req`
Dec 04 23:56:40.406 INFO [stderr]   --> src/main.rs:13:22
Dec 04 23:56:40.406 INFO [stderr]    |
Dec 04 23:56:40.406 INFO [stderr] 13 |     fn handle(&self, req: Request, mut res: Response) {
Dec 04 23:56:40.406 INFO [stderr]    |                      ^^^ help: consider using `_req` instead
Dec 04 23:56:40.406 INFO [stderr] 
Dec 04 23:56:40.429 INFO [stderr] warning: variable does not need to be mutable
Dec 04 23:56:40.429 INFO [stderr]   --> src/main.rs:13:36
Dec 04 23:56:40.429 INFO [stderr]    |
Dec 04 23:56:40.429 INFO [stderr] 13 |     fn handle(&self, req: Request, mut res: Response) {
Dec 04 23:56:40.429 INFO [stderr]    |                                    ----^^^
Dec 04 23:56:40.429 INFO [stderr]    |                                    |
Dec 04 23:56:40.429 INFO [stderr]    |                                    help: remove this `mut`
Dec 04 23:56:40.430 INFO [stderr]    |
Dec 04 23:56:40.430 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 23:56:40.430 INFO [stderr] 
Dec 04 23:56:40.434 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.78s
Dec 04 23:56:40.440 INFO [stderr] su: No module specific data is present
Dec 04 23:56:42.884 INFO running `"docker" "inspect" "69ce93a2a808b14379fdfeb84812a2195b038e770bf0ded7574b7dd1e2679e42"`
Dec 04 23:56:43.046 INFO running `"docker" "rm" "-f" "69ce93a2a808b14379fdfeb84812a2195b038e770bf0ded7574b7dd1e2679e42"`
Dec 04 23:56:43.343 INFO [stdout] 69ce93a2a808b14379fdfeb84812a2195b038e770bf0ded7574b7dd1e2679e42