Dec 19 15:59:33.988 INFO checking hustshawn/rust-iron-demo against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 15:59:33.988 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/hustshawn/rust-iron-demo:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 15:59:34.346 INFO [stdout] 70246b7c04486cfcf48982f107788b36e41a6c664c5c4c963c4d9b9fd1fc6af4
Dec 19 15:59:34.350 INFO running `"docker" "start" "-a" "70246b7c04486cfcf48982f107788b36e41a6c664c5c4c963c4d9b9fd1fc6af4"`
Dec 19 15:59:35.024 INFO [stderr]     Checking router v0.5.1
Dec 19 15:59:35.584 INFO [stderr]     Checking iron-prj v0.1.0 (/opt/crater/workdir)
Dec 19 15:59:36.012 INFO [stderr] warning: unused variable: `req`
Dec 19 15:59:36.012 INFO [stderr]   --> src/main.rs:99:12
Dec 19 15:59:36.012 INFO [stderr]    |
Dec 19 15:59:36.012 INFO [stderr] 99 | fn handler(req: &mut Request) -> IronResult<Response> {
Dec 19 15:59:36.012 INFO [stderr]    |            ^^^ help: consider using `_req` instead
Dec 19 15:59:36.012 INFO [stderr]    |
Dec 19 15:59:36.012 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 15:59:36.012 INFO [stderr] 
Dec 19 15:59:36.018 INFO [stderr] warning: unused variable: `req`
Dec 19 15:59:36.018 INFO [stderr]   --> src/main.rs:99:12
Dec 19 15:59:36.018 INFO [stderr]    |
Dec 19 15:59:36.018 INFO [stderr] 99 | fn handler(req: &mut Request) -> IronResult<Response> {
Dec 19 15:59:36.018 INFO [stderr]    |            ^^^ help: consider using `_req` instead
Dec 19 15:59:36.018 INFO [stderr]    |
Dec 19 15:59:36.018 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 15:59:36.018 INFO [stderr] 
Dec 19 15:59:36.049 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
Dec 19 15:59:36.302 INFO running `"docker" "inspect" "70246b7c04486cfcf48982f107788b36e41a6c664c5c4c963c4d9b9fd1fc6af4"`
Dec 19 15:59:36.424 INFO running `"docker" "rm" "-f" "70246b7c04486cfcf48982f107788b36e41a6c664c5c4c963c4d9b9fd1fc6af4"`
Dec 19 15:59:36.486 INFO [stdout] 70246b7c04486cfcf48982f107788b36e41a6c664c5c4c963c4d9b9fd1fc6af4