Nov 02 02:40:12.294 INFO checking zeratul2099/mercury against try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7 for pr-55517
Nov 02 02:40:12.295 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-0/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55517/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +dc8b02d6f1e93f212fc39844ea688b634b4a03c7-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 02 02:40:13.068 INFO blam! 944634c30ff613b611421cb19292695bc720b504caf4b7fe0700996f1f8e5f3f
Nov 02 02:40:13.070 INFO running `"docker" "start" "-a" "944634c30ff613b611421cb19292695bc720b504caf4b7fe0700996f1f8e5f3f"`
Nov 02 02:40:15.063 INFO kablam! usermod: no changes
Nov 02 02:40:15.208 INFO kablam! error: failed to load source for a dependency on `rocket`
Nov 02 02:40:15.208 INFO kablam! 
Nov 02 02:40:15.208 INFO kablam! Caused by:
Nov 02 02:40:15.208 INFO kablam!   Unable to update https://github.com/SergioBenitez/Rocket.git#8741e678
Nov 02 02:40:15.208 INFO kablam! 
Nov 02 02:40:15.208 INFO kablam! Caused by:
Nov 02 02:40:15.208 INFO kablam!   failed to open: /cargo-home/git/.cargo-lock-git
Nov 02 02:40:15.208 INFO kablam! 
Nov 02 02:40:15.208 INFO kablam! Caused by:
Nov 02 02:40:15.208 INFO kablam!   Read-only file system (os error 30)
Nov 02 02:40:15.217 INFO kablam! su: No module specific data is present
Nov 02 02:40:16.407 INFO running `"docker" "rm" "-f" "944634c30ff613b611421cb19292695bc720b504caf4b7fe0700996f1f8e5f3f"`
Nov 02 02:40:16.756 INFO blam! 944634c30ff613b611421cb19292695bc720b504caf4b7fe0700996f1f8e5f3f