Sep 10 03:03:49.273 INFO checking onur/docs.rs against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 03:03:49.273 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 03:03:49.273 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-0/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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=1000" "-e" "CMD=cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 03:03:49.560 INFO blam! f3dcea7f1dc63a320cfd00024ad8c9b0330fbfb7ec1395bf140f88b2cc6a91ca
Sep 10 03:03:49.562 INFO running `"docker" "start" "-a" "f3dcea7f1dc63a320cfd00024ad8c9b0330fbfb7ec1395bf140f88b2cc6a91ca"`
Sep 10 03:03:50.995 INFO kablam! usermod: no changes
Sep 10 03:03:51.062 INFO kablam! error: failed to load source for a dependency on `cargo`
Sep 10 03:03:51.062 INFO kablam! 
Sep 10 03:03:51.062 INFO kablam! Caused by:
Sep 10 03:03:51.062 INFO kablam!   Unable to update https://github.com/onur/cargo.git?branch=docs.rs#a2996e83
Sep 10 03:03:51.062 INFO kablam! 
Sep 10 03:03:51.062 INFO kablam! Caused by:
Sep 10 03:03:51.062 INFO kablam!   failed to open: /cargo-home/git/.cargo-lock-git
Sep 10 03:03:51.062 INFO kablam! 
Sep 10 03:03:51.062 INFO kablam! Caused by:
Sep 10 03:03:51.062 INFO kablam!   Read-only file system (os error 30)
Sep 10 03:03:51.062 INFO kablam! su: No module specific data is present
Sep 10 03:03:51.845 INFO running `"docker" "rm" "-f" "f3dcea7f1dc63a320cfd00024ad8c9b0330fbfb7ec1395bf140f88b2cc6a91ca"`
Sep 10 03:03:51.951 INFO blam! f3dcea7f1dc63a320cfd00024ad8c9b0330fbfb7ec1395bf140f88b2cc6a91ca