Dec 17 20:28:55.285 INFO checking lucis-fluxum/rust-sandbox against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 20:28:55.285 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/lucis-fluxum/rust-sandbox:/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 17 20:28:55.782 INFO [stdout] cc057ea062dfdb04f19a19bf7c76e22d186cbbdf28916771abfe0f7581d76356
Dec 17 20:28:55.784 INFO running `"docker" "start" "-a" "cc057ea062dfdb04f19a19bf7c76e22d186cbbdf28916771abfe0f7581d76356"`
Dec 17 20:28:57.388 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 17 20:28:57.439 INFO [stderr]     Checking rust-sandbox v0.1.0 (/opt/crater/workdir)
Dec 17 20:28:57.937 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Dec 17 20:28:59.100 INFO running `"docker" "inspect" "cc057ea062dfdb04f19a19bf7c76e22d186cbbdf28916771abfe0f7581d76356"`
Dec 17 20:28:59.339 INFO running `"docker" "rm" "-f" "cc057ea062dfdb04f19a19bf7c76e22d186cbbdf28916771abfe0f7581d76356"`
Dec 17 20:28:59.640 INFO [stdout] cc057ea062dfdb04f19a19bf7c76e22d186cbbdf28916771abfe0f7581d76356