Oct 12 15:03:03.394 INFO checking rgrochowicz/rust-rocksdb-merge-oddity against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 15:03:03.394 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-7/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 12 15:03:04.051 INFO blam! 4bf7cd9e6120cd8ef320b60f91d5e710d027e8341abdf90ff7935a55b7b346b7
Oct 12 15:03:04.053 INFO running `"docker" "start" "-a" "4bf7cd9e6120cd8ef320b60f91d5e710d027e8341abdf90ff7935a55b7b346b7"`
Oct 12 15:03:06.627 INFO kablam! usermod: no changes
Oct 12 15:03:06.684 INFO kablam! error: failed to load source for a dependency on `rocksdb`
Oct 12 15:03:06.684 INFO kablam! 
Oct 12 15:03:06.684 INFO kablam! Caused by:
Oct 12 15:03:06.684 INFO kablam!   Unable to update https://github.com/pingcap/rust-rocksdb.git#f7205e63
Oct 12 15:03:06.684 INFO kablam! 
Oct 12 15:03:06.684 INFO kablam! Caused by:
Oct 12 15:03:06.684 INFO kablam!   failed to open: /cargo-home/git/.cargo-lock-git
Oct 12 15:03:06.684 INFO kablam! 
Oct 12 15:03:06.684 INFO kablam! Caused by:
Oct 12 15:03:06.684 INFO kablam!   Read-only file system (os error 30)
Oct 12 15:03:06.696 INFO kablam! su: No module specific data is present
Oct 12 15:03:08.070 INFO running `"docker" "rm" "-f" "4bf7cd9e6120cd8ef320b60f91d5e710d027e8341abdf90ff7935a55b7b346b7"`
Oct 12 15:03:08.344 INFO blam! 4bf7cd9e6120cd8ef320b60f91d5e710d027e8341abdf90ff7935a55b7b346b7