Dec 18 14:44:15.200 INFO checking jsonrpc-tcp-server-9.0.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 14:44:15.201 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/jsonrpc-tcp-server/9.0.0:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 14:44:15.457 INFO [stdout] 534dcda224cc0c7f9f6d5c1f9065b2ab6c92dcd0826297e571f7bf7fc1abe006
Dec 18 14:44:15.462 INFO running `"docker" "start" "-a" "534dcda224cc0c7f9f6d5c1f9065b2ab6c92dcd0826297e571f7bf7fc1abe006"`
Dec 18 14:44:16.293 INFO [stderr]     Checking jsonrpc-core v9.0.0
Dec 18 14:44:17.638 INFO [stderr]     Checking jsonrpc-server-utils v9.0.0
Dec 18 14:44:19.867 INFO [stderr]     Checking jsonrpc-tcp-server v9.0.0 (/opt/crater/workdir)
Dec 18 14:44:24.576 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.43s
Dec 18 14:44:24.880 INFO running `"docker" "inspect" "534dcda224cc0c7f9f6d5c1f9065b2ab6c92dcd0826297e571f7bf7fc1abe006"`
Dec 18 14:44:25.016 INFO running `"docker" "rm" "-f" "534dcda224cc0c7f9f6d5c1f9065b2ab6c92dcd0826297e571f7bf7fc1abe006"`
Dec 18 14:44:25.138 INFO [stdout] 534dcda224cc0c7f9f6d5c1f9065b2ab6c92dcd0826297e571f7bf7fc1abe006