Nov 17 09:43:19.192 INFO testing alexcrichton/cargo-vendor against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 17 09:43:19.194 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt build --frozen" "-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"`
Nov 17 09:43:19.527 INFO [stdout] b1512d8e9e6cab126b6964d1bb2553f5e1922ad0e2c4d5c7acf9ce007419fd74
Nov 17 09:43:19.533 INFO running `"docker" "start" "-a" "b1512d8e9e6cab126b6964d1bb2553f5e1922ad0e2c4d5c7acf9ce007419fd74"`
Nov 17 09:43:20.439 INFO [stderr] usermod: no changes
Nov 17 09:43:20.503 INFO [stderr] error: failed to load source for a dependency on `cargo`
Nov 17 09:43:20.503 INFO [stderr] 
Nov 17 09:43:20.503 INFO [stderr] Caused by:
Nov 17 09:43:20.503 INFO [stderr]   Unable to update https://github.com/rust-lang/cargo?branch=rust-1.31.0#569507ef
Nov 17 09:43:20.503 INFO [stderr] 
Nov 17 09:43:20.503 INFO [stderr] Caused by:
Nov 17 09:43:20.503 INFO [stderr]   failed to open: /cargo-home/git/.cargo-lock-git
Nov 17 09:43:20.503 INFO [stderr] 
Nov 17 09:43:20.503 INFO [stderr] Caused by:
Nov 17 09:43:20.503 INFO [stderr]   Read-only file system (os error 30)
Nov 17 09:43:20.503 INFO [stderr] su: No module specific data is present
Nov 17 09:43:21.003 INFO running `"docker" "inspect" "b1512d8e9e6cab126b6964d1bb2553f5e1922ad0e2c4d5c7acf9ce007419fd74"`
Nov 17 09:43:21.341 INFO running `"docker" "rm" "-f" "b1512d8e9e6cab126b6964d1bb2553f5e1922ad0e2c4d5c7acf9ce007419fd74"`
Nov 17 09:43:21.630 INFO [stdout] b1512d8e9e6cab126b6964d1bb2553f5e1922ad0e2c4d5c7acf9ce007419fd74