Dec 19 13:26:36.290 INFO checking lucis-fluxum/rust-sandbox against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 13:26:36.290 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 13:26:36.682 INFO [stdout] 856f74d2c0053abda8ed0d0fcbc80a6cc285c79664638a478cfdb1c5cd9706eb
Dec 19 13:26:36.715 INFO running `"docker" "start" "-a" "856f74d2c0053abda8ed0d0fcbc80a6cc285c79664638a478cfdb1c5cd9706eb"`
Dec 19 13:26:38.300 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 19 13:26:38.340 INFO [stderr]     Checking rust-sandbox v0.1.0 (/opt/crater/workdir)
Dec 19 13:26:38.700 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
Dec 19 13:26:39.710 INFO running `"docker" "inspect" "856f74d2c0053abda8ed0d0fcbc80a6cc285c79664638a478cfdb1c5cd9706eb"`
Dec 19 13:26:39.944 INFO running `"docker" "rm" "-f" "856f74d2c0053abda8ed0d0fcbc80a6cc285c79664638a478cfdb1c5cd9706eb"`
Dec 19 13:26:40.144 INFO [stdout] 856f74d2c0053abda8ed0d0fcbc80a6cc285c79664638a478cfdb1c5cd9706eb