Dec 02 01:06:45.775 INFO testing alexcrichton/cargo-vendor against 1.30.1 for beta-1.31-5
Dec 02 01:06:45.775 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 01:06:46.547 INFO [stdout] f54199ab1b5e58787932301b4d751e04c6a11f797ae06143328ad45b2afc3fc3
Dec 02 01:06:46.553 INFO running `"docker" "start" "-a" "f54199ab1b5e58787932301b4d751e04c6a11f797ae06143328ad45b2afc3fc3"`
Dec 02 01:06:48.213 INFO [stderr] usermod: no changes
Dec 02 01:06:48.315 INFO [stderr] error: failed to load source for a dependency on `cargo`
Dec 02 01:06:48.315 INFO [stderr] 
Dec 02 01:06:48.315 INFO [stderr] Caused by:
Dec 02 01:06:48.315 INFO [stderr]   Unable to update https://github.com/rust-lang/cargo?branch=rust-1.31.0#339d9f9c
Dec 02 01:06:48.315 INFO [stderr] 
Dec 02 01:06:48.315 INFO [stderr] Caused by:
Dec 02 01:06:48.315 INFO [stderr]   failed to open: /cargo-home/git/.cargo-lock-git
Dec 02 01:06:48.315 INFO [stderr] 
Dec 02 01:06:48.315 INFO [stderr] Caused by:
Dec 02 01:06:48.315 INFO [stderr]   Read-only file system (os error 30)
Dec 02 01:06:48.331 INFO [stderr] su: No module specific data is present
Dec 02 01:06:49.145 INFO running `"docker" "inspect" "f54199ab1b5e58787932301b4d751e04c6a11f797ae06143328ad45b2afc3fc3"`
Dec 02 01:06:49.374 INFO running `"docker" "rm" "-f" "f54199ab1b5e58787932301b4d751e04c6a11f797ae06143328ad45b2afc3fc3"`
Dec 02 01:06:49.691 INFO [stdout] f54199ab1b5e58787932301b4d751e04c6a11f797ae06143328ad45b2afc3fc3
