Dec 18 10:09:38.331 INFO checking tokio-serde-json-0.2.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 10:09:38.331 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/tokio-serde-json/0.2.0:/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 18 10:09:38.678 INFO [stdout] 87f6ffbd9ca8b7aff53b89099761c6f73e6e4f38ee8bd4e65255a366985a28bf
Dec 18 10:09:38.678 INFO running `"docker" "start" "-a" "87f6ffbd9ca8b7aff53b89099761c6f73e6e4f38ee8bd4e65255a366985a28bf"`
Dec 18 10:09:39.508 INFO [stderr]     Checking tokio-serde v0.3.0
Dec 18 10:09:39.808 INFO [stderr]     Checking tokio-serde-json v0.2.0 (/opt/crater/workdir)
Dec 18 10:09:41.374 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.95s
Dec 18 10:09:41.720 INFO running `"docker" "inspect" "87f6ffbd9ca8b7aff53b89099761c6f73e6e4f38ee8bd4e65255a366985a28bf"`
Dec 18 10:09:41.876 INFO running `"docker" "rm" "-f" "87f6ffbd9ca8b7aff53b89099761c6f73e6e4f38ee8bd4e65255a366985a28bf"`
Dec 18 10:09:41.965 INFO [stdout] 87f6ffbd9ca8b7aff53b89099761c6f73e6e4f38ee8bd4e65255a366985a28bf