Sep 03 16:40:41.014 INFO checking ptariche/rust-rocket-mongo-example against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 03 16:40:41.014 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 03 16:40:41.014 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-1/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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 +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 03 16:40:41.262 INFO blam! 8327f36250db3efcb9255cd01922b2c7752c4c7e546d2e857f894056f6d91d58
Sep 03 16:40:41.265 INFO running `"docker" "start" "-a" "8327f36250db3efcb9255cd01922b2c7752c4c7e546d2e857f894056f6d91d58"`
Sep 03 16:40:42.219 INFO kablam! warning: unused manifest key: development
Sep 03 16:40:42.219 INFO kablam! warning: unused manifest key: production
Sep 03 16:40:42.243 INFO kablam! error: failed to load source for a dependency on `rocket`
Sep 03 16:40:42.244 INFO kablam! 
Sep 03 16:40:42.244 INFO kablam! Caused by:
Sep 03 16:40:42.244 INFO kablam!   Unable to update https://github.com/SergioBenitez/Rocket.git#07d4d23c
Sep 03 16:40:42.244 INFO kablam! 
Sep 03 16:40:42.244 INFO kablam! Caused by:
Sep 03 16:40:42.244 INFO kablam!   failed to open: /cargo-home/git/.cargo-lock-git
Sep 03 16:40:42.244 INFO kablam! 
Sep 03 16:40:42.244 INFO kablam! Caused by:
Sep 03 16:40:42.244 INFO kablam!   Read-only file system (os error 30)
Sep 03 16:40:42.245 INFO kablam! su: No module specific data is present
Sep 03 16:40:42.777 INFO running `"docker" "rm" "-f" "8327f36250db3efcb9255cd01922b2c7752c4c7e546d2e857f894056f6d91d58"`
Sep 03 16:40:42.950 INFO blam! 8327f36250db3efcb9255cd01922b2c7752c4c7e546d2e857f894056f6d91d58