Oct 13 04:50:38.410 INFO checking Eros/Heart against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 13 04:50:38.416 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-5/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-5/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/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 +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-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"`
Oct 13 04:50:38.785 INFO blam! 79eff15d8791de650267c5f9dfdda7f54238cf5098b8f0f286bcc12d58653e08
Oct 13 04:50:38.804 INFO running `"docker" "start" "-a" "79eff15d8791de650267c5f9dfdda7f54238cf5098b8f0f286bcc12d58653e08"`
Oct 13 04:50:40.275 INFO kablam! usermod: no changes
Oct 13 04:50:40.328 INFO kablam! error: failed to load source for a dependency on `mio`
Oct 13 04:50:40.328 INFO kablam! 
Oct 13 04:50:40.328 INFO kablam! Caused by:
Oct 13 04:50:40.328 INFO kablam!   Unable to update https://github.com/carllerche/mio#50c4af5c
Oct 13 04:50:40.328 INFO kablam! 
Oct 13 04:50:40.328 INFO kablam! Caused by:
Oct 13 04:50:40.328 INFO kablam!   failed to open: /cargo-home/git/.cargo-lock-git
Oct 13 04:50:40.328 INFO kablam! 
Oct 13 04:50:40.328 INFO kablam! Caused by:
Oct 13 04:50:40.328 INFO kablam!   Read-only file system (os error 30)
Oct 13 04:50:40.328 INFO kablam! su: No module specific data is present
Oct 13 04:50:41.056 INFO running `"docker" "rm" "-f" "79eff15d8791de650267c5f9dfdda7f54238cf5098b8f0f286bcc12d58653e08"`
Oct 13 04:50:41.298 INFO blam! 79eff15d8791de650267c5f9dfdda7f54238cf5098b8f0f286bcc12d58653e08