Dec 05 06:54:17.785 INFO checking serde_json_experimental-1.0.29-rc1 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 06:54:17.785 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 06:54:18.164 INFO [stdout] 0dd1f67bbd953ad11d0689be992467151f21a3d0f84f8c258811ea0b2feefde5
Dec 05 06:54:18.165 INFO running `"docker" "start" "-a" "0dd1f67bbd953ad11d0689be992467151f21a3d0f84f8c258811ea0b2feefde5"`
Dec 05 06:54:19.243 INFO [stderr] usermod: no changes
Dec 05 06:54:19.403 INFO [stderr]    Compiling compiletest_rs v0.3.17
Dec 05 06:54:19.435 INFO [stderr]     Checking serde_bytes v0.10.4
Dec 05 06:54:19.435 INFO [stderr]     Checking serde_json_experimental v1.0.29-rc1 (/source)
Dec 05 06:54:30.238 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.95s
Dec 05 06:54:30.239 INFO [stderr] su: No module specific data is present
Dec 05 06:54:30.747 INFO running `"docker" "inspect" "0dd1f67bbd953ad11d0689be992467151f21a3d0f84f8c258811ea0b2feefde5"`
Dec 05 06:54:31.041 INFO running `"docker" "rm" "-f" "0dd1f67bbd953ad11d0689be992467151f21a3d0f84f8c258811ea0b2feefde5"`
Dec 05 06:54:31.366 INFO [stdout] 0dd1f67bbd953ad11d0689be992467151f21a3d0f84f8c258811ea0b2feefde5