Dec 04 12:05:23.337 INFO checking qmx/cpubars against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 12:05:23.337 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 04 12:05:23.731 INFO [stdout] f40fb86f3f5152c6dc91a6a91a581c071146c2310ae44ffcc68fe22ffebbf7fd
Dec 04 12:05:23.739 INFO running `"docker" "start" "-a" "f40fb86f3f5152c6dc91a6a91a581c071146c2310ae44ffcc68fe22ffebbf7fd"`
Dec 04 12:05:24.381 INFO [stderr] usermod: no changes
Dec 04 12:05:24.488 INFO [stderr]    Compiling syn v0.15.21
Dec 04 12:05:36.907 INFO [stderr]    Compiling synstructure v0.10.1
Dec 04 12:05:40.945 INFO [stderr]    Compiling failure_derive v0.1.3
Dec 04 12:05:43.419 INFO [stderr]     Checking failure v0.1.3
Dec 04 12:05:43.980 INFO [stderr]     Checking cpubars v0.2.2-alpha.0 (/source)
Dec 04 12:05:45.255 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.85s
Dec 04 12:05:45.259 INFO [stderr] su: No module specific data is present
Dec 04 12:05:45.966 INFO running `"docker" "inspect" "f40fb86f3f5152c6dc91a6a91a581c071146c2310ae44ffcc68fe22ffebbf7fd"`
Dec 04 12:05:46.315 INFO running `"docker" "rm" "-f" "f40fb86f3f5152c6dc91a6a91a581c071146c2310ae44ffcc68fe22ffebbf7fd"`
Dec 04 12:05:46.643 INFO [stdout] f40fb86f3f5152c6dc91a6a91a581c071146c2310ae44ffcc68fe22ffebbf7fd