Jul 11 13:46:36.080 INFO checking onur/docs.rs against try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255 for pr-52234
Jul 11 13:46:36.080 INFO running: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets
Jul 11 13:46:36.080 INFO creating container for: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets
Jul 11 13:46:36.080 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-52234/try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-52234/worker-1/try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255:/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 +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Jul 11 13:46:36.343 INFO blam! 615f8d212f034665d450acaa1e54acba61f59b3124869903c526669ba17b92b8
Jul 11 13:46:36.344 INFO running `"docker" "start" "-a" "615f8d212f034665d450acaa1e54acba61f59b3124869903c526669ba17b92b8"`
Jul 11 13:46:37.483 INFO kablam! error: failed to load source for a dependency on `cargo`
Jul 11 13:46:37.483 INFO kablam! 
Jul 11 13:46:37.483 INFO kablam! Caused by:
Jul 11 13:46:37.483 INFO kablam!   Unable to update https://github.com/onur/cargo.git?branch=docs.rs#a2996e83
Jul 11 13:46:37.483 INFO kablam! 
Jul 11 13:46:37.483 INFO kablam! Caused by:
Jul 11 13:46:37.483 INFO kablam!   failed to open: /cargo-home/git/.cargo-lock-git
Jul 11 13:46:37.483 INFO kablam! 
Jul 11 13:46:37.483 INFO kablam! Caused by:
Jul 11 13:46:37.483 INFO kablam!   Read-only file system (os error 30)
Jul 11 13:46:37.485 INFO kablam! su: No module specific data is present
Jul 11 13:46:38.018 INFO running `"docker" "rm" "-f" "615f8d212f034665d450acaa1e54acba61f59b3124869903c526669ba17b92b8"`
Jul 11 13:46:38.192 INFO blam! 615f8d212f034665d450acaa1e54acba61f59b3124869903c526669ba17b92b8