Dec 12 02:26:51.505 INFO checking Hevienz/serde_new against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 02:26:51.505 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 12 02:26:51.910 INFO [stdout] c9c3221686172bc2e901df6e794982143c3643d551ea8fb0ce95f371abf3a0be
Dec 12 02:26:51.914 INFO running `"docker" "start" "-a" "c9c3221686172bc2e901df6e794982143c3643d551ea8fb0ce95f371abf3a0be"`
Dec 12 02:26:53.205 INFO [stderr] usermod: no changes
Dec 12 02:26:53.340 INFO [stderr]     Checking serde_json v1.0.17
Dec 12 02:26:53.360 INFO [stderr]    Compiling syn v0.13.5
Dec 12 02:27:01.732 INFO [stderr]    Compiling serde_derive_internals v0.23.1
Dec 12 02:27:05.147 INFO [stderr]    Compiling serde_derive v1.0.45
Dec 12 02:27:14.831 INFO [stderr]     Checking serde_new v0.1.0 (/source)
Dec 12 02:27:16.057 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.82s
Dec 12 02:27:16.065 INFO [stderr] su: No module specific data is present
Dec 12 02:27:16.993 INFO running `"docker" "inspect" "c9c3221686172bc2e901df6e794982143c3643d551ea8fb0ce95f371abf3a0be"`
Dec 12 02:27:17.073 INFO running `"docker" "rm" "-f" "c9c3221686172bc2e901df6e794982143c3643d551ea8fb0ce95f371abf3a0be"`
Dec 12 02:27:17.240 INFO [stdout] c9c3221686172bc2e901df6e794982143c3643d551ea8fb0ce95f371abf3a0be