Dec 05 06:52:49.633 INFO checking serdeconv-0.3.0 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 06:52:49.633 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 05 06:52:49.778 INFO [stdout] 989d47b685b448368948ebd1e5e1aeac3a18c063ce967632e8d5969cebb540e3
Dec 05 06:52:49.780 INFO running `"docker" "start" "-a" "989d47b685b448368948ebd1e5e1aeac3a18c063ce967632e8d5969cebb540e3"`
Dec 05 06:52:50.555 INFO [stderr] usermod: no changes
Dec 05 06:52:50.624 INFO [stderr]    Compiling trackable_derive v0.1.1
Dec 05 06:52:50.625 INFO [stderr]     Checking rmp-serde v0.13.7
Dec 05 06:52:53.095 INFO [stderr]     Checking trackable v0.2.20
Dec 05 06:52:53.871 INFO [stderr]     Checking serdeconv v0.3.0 (/source)
Dec 05 06:52:56.177 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.59s
Dec 05 06:52:56.183 INFO [stderr] su: No module specific data is present
Dec 05 06:52:56.991 INFO running `"docker" "inspect" "989d47b685b448368948ebd1e5e1aeac3a18c063ce967632e8d5969cebb540e3"`
Dec 05 06:52:57.315 INFO running `"docker" "rm" "-f" "989d47b685b448368948ebd1e5e1aeac3a18c063ce967632e8d5969cebb540e3"`
Dec 05 06:52:57.711 INFO [stdout] 989d47b685b448368948ebd1e5e1aeac3a18c063ce967632e8d5969cebb540e3