Sep 10 03:03:48.673 INFO checking onur/docs.rs against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 03:03:48.673 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 03:03:48.673 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-6/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 03:03:48.934 INFO blam! 895f3f2fb4d609758e965f705f937ce7290354dea3b045bf70b6063ae33b6969
Sep 10 03:03:48.936 INFO running `"docker" "start" "-a" "895f3f2fb4d609758e965f705f937ce7290354dea3b045bf70b6063ae33b6969"`
Sep 10 03:03:50.007 INFO kablam! usermod: no changes
Sep 10 03:03:50.074 INFO kablam! error: failed to load source for a dependency on `cargo`
Sep 10 03:03:50.074 INFO kablam! 
Sep 10 03:03:50.074 INFO kablam! Caused by:
Sep 10 03:03:50.074 INFO kablam!   Unable to update https://github.com/onur/cargo.git?branch=docs.rs#a2996e83
Sep 10 03:03:50.074 INFO kablam! 
Sep 10 03:03:50.074 INFO kablam! Caused by:
Sep 10 03:03:50.074 INFO kablam!   failed to open: /cargo-home/git/.cargo-lock-git
Sep 10 03:03:50.074 INFO kablam! 
Sep 10 03:03:50.074 INFO kablam! Caused by:
Sep 10 03:03:50.074 INFO kablam!   Read-only file system (os error 30)
Sep 10 03:03:50.078 INFO kablam! su: No module specific data is present
Sep 10 03:03:50.937 INFO running `"docker" "rm" "-f" "895f3f2fb4d609758e965f705f937ce7290354dea3b045bf70b6063ae33b6969"`
Sep 10 03:03:51.053 INFO blam! 895f3f2fb4d609758e965f705f937ce7290354dea3b045bf70b6063ae33b6969