Dec 19 17:28:51.421 INFO checking elementh/rust_grep against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 17:28:51.422 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/elementh/rust_grep:/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 17:28:51.655 INFO [stdout] ecc4cfc5c4cb80bebfa94c077b09965a7c0e5d85466570c95a443c6d0aaa988a
Dec 19 17:28:51.658 INFO running `"docker" "start" "-a" "ecc4cfc5c4cb80bebfa94c077b09965a7c0e5d85466570c95a443c6d0aaa988a"`
Dec 19 17:28:52.460 INFO [stderr]     Checking rust_grep v0.3.0 (/opt/crater/workdir)
Dec 19 17:28:53.176 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
Dec 19 17:28:53.824 INFO running `"docker" "inspect" "ecc4cfc5c4cb80bebfa94c077b09965a7c0e5d85466570c95a443c6d0aaa988a"`
Dec 19 17:28:53.964 INFO running `"docker" "rm" "-f" "ecc4cfc5c4cb80bebfa94c077b09965a7c0e5d85466570c95a443c6d0aaa988a"`
Dec 19 17:28:54.101 INFO [stdout] ecc4cfc5c4cb80bebfa94c077b09965a7c0e5d85466570c95a443c6d0aaa988a