Dec 04 06:50:20.831 INFO checking xdavidel/rust-json-parse against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 06:50:20.831 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 06:50:21.259 INFO [stdout] 88807b2e62e9b97e6322a80e93e8490b56f090ee83f2dcf5d55ea2fa8d2a76f1
Dec 04 06:50:21.260 INFO running `"docker" "start" "-a" "88807b2e62e9b97e6322a80e93e8490b56f090ee83f2dcf5d55ea2fa8d2a76f1"`
Dec 04 06:50:22.706 INFO [stderr] usermod: no changes
Dec 04 06:50:22.823 INFO [stderr]    Compiling ryu v0.2.6
Dec 04 06:50:22.823 INFO [stderr]    Compiling syn v0.15.9
Dec 04 06:50:25.120 INFO [stderr]     Checking serde_json v1.0.32
Dec 04 06:50:36.384 INFO [stderr]    Compiling serde_derive v1.0.79
Dec 04 06:50:50.482 INFO [stderr]     Checking json v0.1.0 (/source)
Dec 04 06:50:51.202 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.46s
Dec 04 06:50:51.215 INFO [stderr] su: No module specific data is present
Dec 04 06:50:52.123 INFO running `"docker" "inspect" "88807b2e62e9b97e6322a80e93e8490b56f090ee83f2dcf5d55ea2fa8d2a76f1"`
Dec 04 06:50:52.401 INFO running `"docker" "rm" "-f" "88807b2e62e9b97e6322a80e93e8490b56f090ee83f2dcf5d55ea2fa8d2a76f1"`
Dec 04 06:50:52.680 INFO [stdout] 88807b2e62e9b97e6322a80e93e8490b56f090ee83f2dcf5d55ea2fa8d2a76f1