Dec 19 17:19:59.072 INFO checking erfanelahi/rust against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 17:19:59.072 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/erfanelahi/rust:/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 17:19:59.511 INFO [stdout] 4d4cbbdb95718bd89453c9755060fc314904cdb6e0d2831e9bc213ea8d517e6b
Dec 19 17:19:59.513 INFO running `"docker" "start" "-a" "4d4cbbdb95718bd89453c9755060fc314904cdb6e0d2831e9bc213ea8d517e6b"`
Dec 19 17:20:01.948 INFO [stderr]     Checking rust v0.1.0 (/opt/crater/workdir)
Dec 19 17:20:02.724 INFO [stderr] warning: unused variable: `f`
Dec 19 17:20:02.724 INFO [stderr]   --> src/main.rs:27:9
Dec 19 17:20:02.724 INFO [stderr]    |
Dec 19 17:20:02.725 INFO [stderr] 27 |     let f = match f {
Dec 19 17:20:02.725 INFO [stderr]    |         ^ help: consider using `_f` instead
Dec 19 17:20:02.725 INFO [stderr]    |
Dec 19 17:20:02.726 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 17:20:02.726 INFO [stderr] 
Dec 19 17:20:02.731 INFO [stderr] warning: unused variable: `f`
Dec 19 17:20:02.732 INFO [stderr]   --> src/main.rs:27:9
Dec 19 17:20:02.732 INFO [stderr]    |
Dec 19 17:20:02.732 INFO [stderr] 27 |     let f = match f {
Dec 19 17:20:02.733 INFO [stderr]    |         ^ help: consider using `_f` instead
Dec 19 17:20:02.733 INFO [stderr]    |
Dec 19 17:20:02.733 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 17:20:02.733 INFO [stderr] 
Dec 19 17:20:02.778 INFO [stderr] warning: unused attribute
Dec 19 17:20:02.778 INFO [stderr]    --> src/main.rs:100:5
Dec 19 17:20:02.778 INFO [stderr]     |
Dec 19 17:20:02.778 INFO [stderr] 100 |     #[derive(Debug)]
Dec 19 17:20:02.778 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 19 17:20:02.778 INFO [stderr]     |
Dec 19 17:20:02.784 INFO [stderr]     = note: #[warn(unused_attributes)] on by default
Dec 19 17:20:02.784 INFO [stderr] 
Dec 19 17:20:02.788 INFO [stderr] warning: unused attribute
Dec 19 17:20:02.788 INFO [stderr]    --> src/main.rs:100:5
Dec 19 17:20:02.788 INFO [stderr]     |
Dec 19 17:20:02.788 INFO [stderr] 100 |     #[derive(Debug)]
Dec 19 17:20:02.788 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 19 17:20:02.788 INFO [stderr]     |
Dec 19 17:20:02.788 INFO [stderr]     = note: #[warn(unused_attributes)] on by default
Dec 19 17:20:02.788 INFO [stderr] 
Dec 19 17:20:02.857 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
Dec 19 17:20:04.054 INFO running `"docker" "inspect" "4d4cbbdb95718bd89453c9755060fc314904cdb6e0d2831e9bc213ea8d517e6b"`
Dec 19 17:20:04.454 INFO running `"docker" "rm" "-f" "4d4cbbdb95718bd89453c9755060fc314904cdb6e0d2831e9bc213ea8d517e6b"`
Dec 19 17:20:04.815 INFO [stdout] 4d4cbbdb95718bd89453c9755060fc314904cdb6e0d2831e9bc213ea8d517e6b