Dec 19 05:15:56.965 INFO checking xosmig/rustping against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 05:15:56.966 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/xosmig/rustping:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 05:15:57.109 INFO [stdout] fb972e7733b2b097acc3a95a8be3ae1bd52ab9167bcdc95cd76c01c8f6633a1e
Dec 19 05:15:57.110 INFO running `"docker" "start" "-a" "fb972e7733b2b097acc3a95a8be3ae1bd52ab9167bcdc95cd76c01c8f6633a1e"`
Dec 19 05:15:57.679 INFO [stderr]    Compiling syn v0.11.11
Dec 19 05:15:57.680 INFO [stderr]    Compiling num-traits v0.1.43
Dec 19 05:16:02.680 INFO [stderr]    Compiling enum-primitive-derive v0.1.2
Dec 19 05:16:04.516 INFO [stderr]     Checking rustping v0.1.0 (/opt/crater/workdir)
Dec 19 05:16:05.508 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.90s
Dec 19 05:16:06.074 INFO running `"docker" "inspect" "fb972e7733b2b097acc3a95a8be3ae1bd52ab9167bcdc95cd76c01c8f6633a1e"`
Dec 19 05:16:06.344 INFO running `"docker" "rm" "-f" "fb972e7733b2b097acc3a95a8be3ae1bd52ab9167bcdc95cd76c01c8f6633a1e"`
Dec 19 05:16:06.703 INFO [stdout] fb972e7733b2b097acc3a95a8be3ae1bd52ab9167bcdc95cd76c01c8f6633a1e