Dec 04 21:29:12.880 INFO checking brson/cargo-index-tool against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 21:29:12.880 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 21:29:13.352 INFO [stdout] 1bb7055901bce50c663444e8d4fc41ad35f78c780abf3edc82b35fc8d9cd5973
Dec 04 21:29:13.363 INFO running `"docker" "start" "-a" "1bb7055901bce50c663444e8d4fc41ad35f78c780abf3edc82b35fc8d9cd5973"`
Dec 04 21:29:14.399 INFO [stderr] usermod: no changes
Dec 04 21:29:14.630 INFO [stderr]     Checking semver v0.7.0
Dec 04 21:29:14.630 INFO [stderr]     Checking serde_json v1.0.2
Dec 04 21:29:14.631 INFO [stderr]    Compiling structopt-derive v0.0.5
Dec 04 21:29:14.639 INFO [stderr]     Checking structopt v0.0.5
Dec 04 21:29:19.191 INFO [stderr]     Checking cargo-index-tool v0.1.0 (/source)
Dec 04 21:29:22.077 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.64s
Dec 04 21:29:22.085 INFO [stderr] su: No module specific data is present
Dec 04 21:29:23.459 INFO running `"docker" "inspect" "1bb7055901bce50c663444e8d4fc41ad35f78c780abf3edc82b35fc8d9cd5973"`
Dec 04 21:29:23.777 INFO running `"docker" "rm" "-f" "1bb7055901bce50c663444e8d4fc41ad35f78c780abf3edc82b35fc8d9cd5973"`
Dec 04 21:29:24.119 INFO [stdout] 1bb7055901bce50c663444e8d4fc41ad35f78c780abf3edc82b35fc8d9cd5973