Sep 20 23:14:29.273 INFO checking brennie/chat against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 20 23:14:29.273 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 20 23:14:29.273 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-1/master#f7f4c500b46603386e940f116b469c7adc043a6d:/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 +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 23:14:29.523 INFO blam! cf4b141a798e26ac93e6d90e5ea6df2368640961645563af362ccb75587fa463
Sep 20 23:14:29.525 INFO running `"docker" "start" "-a" "cf4b141a798e26ac93e6d90e5ea6df2368640961645563af362ccb75587fa463"`
Sep 20 23:14:31.454 INFO kablam! usermod: no changes
Sep 20 23:14:31.546 INFO kablam! error: failed to load source for a dependency on `tokio-serde-json`
Sep 20 23:14:31.546 INFO kablam! 
Sep 20 23:14:31.546 INFO kablam! Caused by:
Sep 20 23:14:31.546 INFO kablam!   Unable to update https://github.com/carllerche/tokio-serde-json#26476c7b
Sep 20 23:14:31.546 INFO kablam! 
Sep 20 23:14:31.546 INFO kablam! Caused by:
Sep 20 23:14:31.546 INFO kablam!   failed to open: /cargo-home/git/.cargo-lock-git
Sep 20 23:14:31.546 INFO kablam! 
Sep 20 23:14:31.546 INFO kablam! Caused by:
Sep 20 23:14:31.546 INFO kablam!   Read-only file system (os error 30)
Sep 20 23:14:31.546 INFO kablam! su: No module specific data is present
Sep 20 23:14:33.032 INFO running `"docker" "rm" "-f" "cf4b141a798e26ac93e6d90e5ea6df2368640961645563af362ccb75587fa463"`
Sep 20 23:14:33.146 INFO blam! cf4b141a798e26ac93e6d90e5ea6df2368640961645563af362ccb75587fa463