Dec 18 06:21:40.205 INFO checking MonadProject/ledger against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 06:21:40.205 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/MonadProject/ledger:/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 06:21:40.661 INFO [stdout] c91ca1de417c7e66abeabb72d0f8ff191f87192bb552bb151996b63c03094696
Dec 18 06:21:40.663 INFO running `"docker" "start" "-a" "c91ca1de417c7e66abeabb72d0f8ff191f87192bb552bb151996b63c03094696"`
Dec 18 06:21:42.165 INFO [stderr]     Checking monadledger v0.1.0 (/opt/crater/workdir)
Dec 18 06:21:42.420 INFO [stderr] warning: unused variable: `b`
Dec 18 06:21:42.420 INFO [stderr]  --> src/main.rs:3:9
Dec 18 06:21:42.420 INFO [stderr]   |
Dec 18 06:21:42.420 INFO [stderr] 3 |     let b = &&a[0];
Dec 18 06:21:42.420 INFO [stderr]   |         ^ help: consider using `_b` instead
Dec 18 06:21:42.420 INFO [stderr]   |
Dec 18 06:21:42.420 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 06:21:42.420 INFO [stderr] 
Dec 18 06:21:42.496 INFO [stderr] warning: unused variable: `b`
Dec 18 06:21:42.496 INFO [stderr]  --> src/main.rs:3:9
Dec 18 06:21:42.496 INFO [stderr]   |
Dec 18 06:21:42.496 INFO [stderr] 3 |     let b = &&a[0];
Dec 18 06:21:42.496 INFO [stderr]   |         ^ help: consider using `_b` instead
Dec 18 06:21:42.496 INFO [stderr]   |
Dec 18 06:21:42.496 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 06:21:42.496 INFO [stderr] 
Dec 18 06:21:42.528 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
Dec 18 06:21:42.866 INFO running `"docker" "inspect" "c91ca1de417c7e66abeabb72d0f8ff191f87192bb552bb151996b63c03094696"`
Dec 18 06:21:42.994 INFO running `"docker" "rm" "-f" "c91ca1de417c7e66abeabb72d0f8ff191f87192bb552bb151996b63c03094696"`
Dec 18 06:21:43.084 INFO [stdout] c91ca1de417c7e66abeabb72d0f8ff191f87192bb552bb151996b63c03094696