Dec 02 04:58:40.672 INFO testing NervosFoundation/serde_bench against 1.30.1 for beta-1.31-5
Dec 02 04:58:40.672 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/beta-1.31-5/1.30.1:/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 +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 04:58:41.152 INFO [stdout] 3ef55565ce8c54f33245ed5da6b5a6260637d0efff0f5680e1b3802b7eee7352
Dec 02 04:58:41.159 INFO running `"docker" "start" "-a" "3ef55565ce8c54f33245ed5da6b5a6260637d0efff0f5680e1b3802b7eee7352"`
Dec 02 04:58:42.435 INFO [stderr] usermod: no changes
Dec 02 04:58:42.492 INFO [stderr] error: failed to load source for a dependency on `bigint`
Dec 02 04:58:42.492 INFO [stderr] 
Dec 02 04:58:42.492 INFO [stderr] Caused by:
Dec 02 04:58:42.492 INFO [stderr]   Unable to update https://github.com/NervosFoundation/bigint#604d7695
Dec 02 04:58:42.492 INFO [stderr] 
Dec 02 04:58:42.492 INFO [stderr] Caused by:
Dec 02 04:58:42.492 INFO [stderr]   failed to open: /cargo-home/git/.cargo-lock-git
Dec 02 04:58:42.492 INFO [stderr] 
Dec 02 04:58:42.492 INFO [stderr] Caused by:
Dec 02 04:58:42.492 INFO [stderr]   Read-only file system (os error 30)
Dec 02 04:58:42.503 INFO [stderr] su: No module specific data is present
Dec 02 04:58:43.275 INFO running `"docker" "inspect" "3ef55565ce8c54f33245ed5da6b5a6260637d0efff0f5680e1b3802b7eee7352"`
Dec 02 04:58:43.614 INFO running `"docker" "rm" "-f" "3ef55565ce8c54f33245ed5da6b5a6260637d0efff0f5680e1b3802b7eee7352"`
Dec 02 04:58:43.966 INFO [stdout] 3ef55565ce8c54f33245ed5da6b5a6260637d0efff0f5680e1b3802b7eee7352