Dec 04 22:50:23.400 INFO checking alexcrichton/cargo-vendor against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 22:50:23.400 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 04 22:50:23.871 INFO [stdout] fa52f8a411de86700d991ebdc119a0435f4c10e7113252bfa2521ea737d05d9e
Dec 04 22:50:23.874 INFO running `"docker" "start" "-a" "fa52f8a411de86700d991ebdc119a0435f4c10e7113252bfa2521ea737d05d9e"`
Dec 04 22:50:25.638 INFO [stderr] usermod: no changes
Dec 04 22:50:25.767 INFO [stderr] error: failed to load source for a dependency on `cargo`
Dec 04 22:50:25.767 INFO [stderr] 
Dec 04 22:50:25.767 INFO [stderr] Caused by:
Dec 04 22:50:25.767 INFO [stderr]   Unable to update https://github.com/rust-lang/cargo?branch=rust-1.31.0#339d9f9c
Dec 04 22:50:25.767 INFO [stderr] 
Dec 04 22:50:25.767 INFO [stderr] Caused by:
Dec 04 22:50:25.767 INFO [stderr]   failed to open: /cargo-home/git/.cargo-lock-git
Dec 04 22:50:25.767 INFO [stderr] 
Dec 04 22:50:25.767 INFO [stderr] Caused by:
Dec 04 22:50:25.767 INFO [stderr]   Read-only file system (os error 30)
Dec 04 22:50:25.767 INFO [stderr] su: No module specific data is present
Dec 04 22:50:27.250 INFO running `"docker" "inspect" "fa52f8a411de86700d991ebdc119a0435f4c10e7113252bfa2521ea737d05d9e"`
Dec 04 22:50:27.503 INFO running `"docker" "rm" "-f" "fa52f8a411de86700d991ebdc119a0435f4c10e7113252bfa2521ea737d05d9e"`
Dec 04 22:50:27.819 INFO [stdout] fa52f8a411de86700d991ebdc119a0435f4c10e7113252bfa2521ea737d05d9e