Dec 17 11:17:58.441 INFO checking ypkulkar/infix_to_postfix against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 11:17:58.441 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/ypkulkar/infix_to_postfix:/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 17 11:17:58.892 INFO [stdout] fd174219dca45f1a0b049f74eb4f2948cc000bec24e0def996754c2149317ca4
Dec 17 11:17:58.898 INFO running `"docker" "start" "-a" "fd174219dca45f1a0b049f74eb4f2948cc000bec24e0def996754c2149317ca4"`
Dec 17 11:18:00.468 INFO [stderr]     Checking your v0.1.0 (/opt/crater/workdir)
Dec 17 11:18:00.749 INFO [stderr] warning: unused variable: `x`
Dec 17 11:18:00.749 INFO [stderr]    --> src/lib.rs:134:28
Dec 17 11:18:00.749 INFO [stderr]     |
Dec 17 11:18:00.749 INFO [stderr] 134 |                &InfixToken::Operand(x) => {
Dec 17 11:18:00.749 INFO [stderr]     |                                     ^ help: consider using `_x` instead
Dec 17 11:18:00.749 INFO [stderr]     |
Dec 17 11:18:00.749 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 17 11:18:00.749 INFO [stderr] 
Dec 17 11:18:00.749 INFO [stderr] warning: unused variable: `x`
Dec 17 11:18:00.749 INFO [stderr]    --> src/lib.rs:140:29
Dec 17 11:18:00.750 INFO [stderr]     |
Dec 17 11:18:00.750 INFO [stderr] 140 |                &InfixToken::Operator(x) => {
Dec 17 11:18:00.750 INFO [stderr]     |                                      ^ help: consider using `_x` instead
Dec 17 11:18:00.750 INFO [stderr] 
Dec 17 11:18:00.750 INFO [stderr] warning: unused variable: `x`
Dec 17 11:18:00.750 INFO [stderr]    --> src/lib.rs:172:31
Dec 17 11:18:00.750 INFO [stderr]     |
Dec 17 11:18:00.750 INFO [stderr] 172 |                             InfixToken::Operand(x) => break,
Dec 17 11:18:00.750 INFO [stderr]     |                                                 ^ help: consider using `_x` instead
Dec 17 11:18:00.750 INFO [stderr] 
Dec 17 11:18:00.876 INFO [stderr] warning: unused variable: `x`
Dec 17 11:18:00.876 INFO [stderr]    --> src/lib.rs:134:28
Dec 17 11:18:00.876 INFO [stderr]     |
Dec 17 11:18:00.876 INFO [stderr] 134 |                &InfixToken::Operand(x) => {
Dec 17 11:18:00.876 INFO [stderr]     |                                     ^ help: consider using `_x` instead
Dec 17 11:18:00.876 INFO [stderr]     |
Dec 17 11:18:00.876 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 17 11:18:00.876 INFO [stderr] 
Dec 17 11:18:00.876 INFO [stderr] warning: unused variable: `x`
Dec 17 11:18:00.876 INFO [stderr]    --> src/lib.rs:140:29
Dec 17 11:18:00.876 INFO [stderr]     |
Dec 17 11:18:00.876 INFO [stderr] 140 |                &InfixToken::Operator(x) => {
Dec 17 11:18:00.876 INFO [stderr]     |                                      ^ help: consider using `_x` instead
Dec 17 11:18:00.876 INFO [stderr] 
Dec 17 11:18:00.876 INFO [stderr] warning: unused variable: `x`
Dec 17 11:18:00.876 INFO [stderr]    --> src/lib.rs:172:31
Dec 17 11:18:00.876 INFO [stderr]     |
Dec 17 11:18:00.876 INFO [stderr] 172 |                             InfixToken::Operand(x) => break,
Dec 17 11:18:00.876 INFO [stderr]     |                                                 ^ help: consider using `_x` instead
Dec 17 11:18:00.876 INFO [stderr] 
Dec 17 11:18:00.934 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
Dec 17 11:18:01.570 INFO running `"docker" "inspect" "fd174219dca45f1a0b049f74eb4f2948cc000bec24e0def996754c2149317ca4"`
Dec 17 11:18:01.847 INFO running `"docker" "rm" "-f" "fd174219dca45f1a0b049f74eb4f2948cc000bec24e0def996754c2149317ca4"`
Dec 17 11:18:02.241 INFO [stdout] fd174219dca45f1a0b049f74eb4f2948cc000bec24e0def996754c2149317ca4