Sep 03 20:56:56.307 INFO checking onur/docs.rs against try#5fe695a3844714c70e8f7731a553f7947987a68a for pr-53913
Sep 03 20:56:56.307 INFO running: cargo +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets
Sep 03 20:56:56.307 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53913/try#5fe695a3844714c70e8f7731a553f7947987a68a:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-2/try#5fe695a3844714c70e8f7731a553f7947987a68a:/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 +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 03 20:56:56.597 INFO blam! 6ff80daa42b471bc78abab29d6cf951b789e424be04ce0e51fc2ff55be42aa6c
Sep 03 20:56:56.600 INFO running `"docker" "start" "-a" "6ff80daa42b471bc78abab29d6cf951b789e424be04ce0e51fc2ff55be42aa6c"`
Sep 03 20:56:57.620 INFO kablam! error: failed to load source for a dependency on `cargo`
Sep 03 20:56:57.620 INFO kablam! 
Sep 03 20:56:57.620 INFO kablam! Caused by:
Sep 03 20:56:57.621 INFO kablam!   Unable to update https://github.com/onur/cargo.git?branch=docs.rs#a2996e83
Sep 03 20:56:57.621 INFO kablam! 
Sep 03 20:56:57.621 INFO kablam! Caused by:
Sep 03 20:56:57.621 INFO kablam!   failed to open: /cargo-home/git/.cargo-lock-git
Sep 03 20:56:57.621 INFO kablam! 
Sep 03 20:56:57.621 INFO kablam! Caused by:
Sep 03 20:56:57.621 INFO kablam!   Read-only file system (os error 30)
Sep 03 20:56:57.622 INFO kablam! su: No module specific data is present
Sep 03 20:56:58.190 INFO running `"docker" "rm" "-f" "6ff80daa42b471bc78abab29d6cf951b789e424be04ce0e51fc2ff55be42aa6c"`
Sep 03 20:56:58.352 INFO blam! 6ff80daa42b471bc78abab29d6cf951b789e424be04ce0e51fc2ff55be42aa6c