Dec 19 15:36:54.073 INFO checking ischaaf/rust-sandbox against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 15:36:54.073 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/ischaaf/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 15:36:54.574 INFO [stdout] 89319b3d08b0608bfdb7ef62533924d077e874da5c5eba0a3f059f05eb164832
Dec 19 15:36:54.580 INFO running `"docker" "start" "-a" "89319b3d08b0608bfdb7ef62533924d077e874da5c5eba0a3f059f05eb164832"`
Dec 19 15:36:56.925 INFO [stderr]    Compiling serde_derive v1.0.71
Dec 19 15:37:10.704 INFO [stderr]     Checking rust-sandbox v0.1.0 (/opt/crater/workdir)
Dec 19 15:37:11.493 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.66s
Dec 19 15:37:12.152 INFO running `"docker" "inspect" "89319b3d08b0608bfdb7ef62533924d077e874da5c5eba0a3f059f05eb164832"`
Dec 19 15:37:12.434 INFO running `"docker" "rm" "-f" "89319b3d08b0608bfdb7ef62533924d077e874da5c5eba0a3f059f05eb164832"`
Dec 19 15:37:12.733 INFO [stdout] 89319b3d08b0608bfdb7ef62533924d077e874da5c5eba0a3f059f05eb164832