Dec 17 18:22:03.614 INFO checking opcow/fe_o2 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 18:22:03.614 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/opcow/fe_o2:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 18:22:05.285 INFO [stdout] c9c44badf6277e3661515b8a169f2ccbe0ae3b54f092d4559a26f533c9f75cf3
Dec 17 18:22:05.287 INFO running `"docker" "start" "-a" "c9c44badf6277e3661515b8a169f2ccbe0ae3b54f092d4559a26f533c9f75cf3"`
Dec 17 18:22:09.104 INFO [stderr]     Checking ascii v0.9.1
Dec 17 18:22:09.630 INFO [stderr]     Checking fe_o2 v0.1.0 (/opt/crater/workdir)
Dec 17 18:22:10.244 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
Dec 17 18:22:13.529 INFO running `"docker" "inspect" "c9c44badf6277e3661515b8a169f2ccbe0ae3b54f092d4559a26f533c9f75cf3"`
Dec 17 18:22:13.728 INFO running `"docker" "rm" "-f" "c9c44badf6277e3661515b8a169f2ccbe0ae3b54f092d4559a26f533c9f75cf3"`
Dec 17 18:22:14.080 INFO [stdout] c9c44badf6277e3661515b8a169f2ccbe0ae3b54f092d4559a26f533c9f75cf3