Oct 31 22:31:30.666 INFO checking rgrochowicz/rust-rocksdb-merge-oddity against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Oct 31 22:31:30.668 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-2/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 31 22:31:31.174 INFO blam! e15b4d4a78c8909584c6ea12ba1631a783de727ded3532664337bd708414dfba
Oct 31 22:31:31.174 INFO running `"docker" "start" "-a" "e15b4d4a78c8909584c6ea12ba1631a783de727ded3532664337bd708414dfba"`
Oct 31 22:31:33.723 INFO kablam! usermod: no changes
Oct 31 22:31:33.776 INFO kablam! error: failed to load source for a dependency on `rocksdb`
Oct 31 22:31:33.776 INFO kablam! 
Oct 31 22:31:33.776 INFO kablam! Caused by:
Oct 31 22:31:33.776 INFO kablam!   Unable to update https://github.com/pingcap/rust-rocksdb.git#f7205e63
Oct 31 22:31:33.776 INFO kablam! 
Oct 31 22:31:33.776 INFO kablam! Caused by:
Oct 31 22:31:33.776 INFO kablam!   failed to open: /cargo-home/git/.cargo-lock-git
Oct 31 22:31:33.776 INFO kablam! 
Oct 31 22:31:33.776 INFO kablam! Caused by:
Oct 31 22:31:33.776 INFO kablam!   Read-only file system (os error 30)
Oct 31 22:31:33.788 INFO kablam! su: No module specific data is present
Oct 31 22:31:34.648 INFO running `"docker" "rm" "-f" "e15b4d4a78c8909584c6ea12ba1631a783de727ded3532664337bd708414dfba"`
Oct 31 22:31:34.984 INFO blam! e15b4d4a78c8909584c6ea12ba1631a783de727ded3532664337bd708414dfba