Aug 17 00:34:25.193 INFO checking onur/docs.rs against master#142bb27373126edf8367f526358b6c72ecf1d8df for pr-53426
Aug 17 00:34:25.193 INFO running: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 00:34:25.193 INFO creating container for: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 00:34:25.194 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53426/master#142bb27373126edf8367f526358b6c72ecf1d8df:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-3/master#142bb27373126edf8367f526358b6c72ecf1d8df:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 17 00:34:25.438 INFO blam! 4e8944fbd4c2510090601819d1968d57b65e904ffabc845736372e6ff7623c3d
Aug 17 00:34:25.441 INFO running `"docker" "start" "-a" "4e8944fbd4c2510090601819d1968d57b65e904ffabc845736372e6ff7623c3d"`
Aug 17 00:34:26.425 INFO kablam! error: failed to load source for a dependency on `cargo`
Aug 17 00:34:26.426 INFO kablam! 
Aug 17 00:34:26.426 INFO kablam! Caused by:
Aug 17 00:34:26.426 INFO kablam!   Unable to update https://github.com/onur/cargo.git?branch=docs.rs#a2996e83
Aug 17 00:34:26.426 INFO kablam! 
Aug 17 00:34:26.426 INFO kablam! Caused by:
Aug 17 00:34:26.426 INFO kablam!   failed to open: /cargo-home/git/.cargo-lock-git
Aug 17 00:34:26.426 INFO kablam! 
Aug 17 00:34:26.426 INFO kablam! Caused by:
Aug 17 00:34:26.426 INFO kablam!   Read-only file system (os error 30)
Aug 17 00:34:26.427 INFO kablam! su: No module specific data is present
Aug 17 00:34:26.974 INFO running `"docker" "rm" "-f" "4e8944fbd4c2510090601819d1968d57b65e904ffabc845736372e6ff7623c3d"`
Aug 17 00:34:27.134 INFO blam! 4e8944fbd4c2510090601819d1968d57b65e904ffabc845736372e6ff7623c3d