Oct 12 13:05:33.206 INFO checking stegos/pbc-example against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 13:05:33.206 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-7/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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 12 13:05:33.408 INFO blam! eacb51ef75ad26ccaa8d4e9e4dcdbcff87fe402138ee406e28c8bd6209ce6c62
Oct 12 13:05:33.410 INFO running `"docker" "start" "-a" "eacb51ef75ad26ccaa8d4e9e4dcdbcff87fe402138ee406e28c8bd6209ce6c62"`
Oct 12 13:05:33.877 INFO kablam! usermod: no changes
Oct 12 13:05:33.914 INFO kablam! error: failed to load source for a dependency on `rust-libpbc`
Oct 12 13:05:33.914 INFO kablam! 
Oct 12 13:05:33.914 INFO kablam! Caused by:
Oct 12 13:05:33.914 INFO kablam!   Unable to update https://github.com/stegos/rust-pbcintf.git#fd2108fd
Oct 12 13:05:33.914 INFO kablam! 
Oct 12 13:05:33.914 INFO kablam! Caused by:
Oct 12 13:05:33.914 INFO kablam!   failed to open: /cargo-home/git/.cargo-lock-git
Oct 12 13:05:33.914 INFO kablam! 
Oct 12 13:05:33.914 INFO kablam! Caused by:
Oct 12 13:05:33.914 INFO kablam!   Read-only file system (os error 30)
Oct 12 13:05:33.914 INFO kablam! su: No module specific data is present
Oct 12 13:05:34.253 INFO running `"docker" "rm" "-f" "eacb51ef75ad26ccaa8d4e9e4dcdbcff87fe402138ee406e28c8bd6209ce6c62"`
Oct 12 13:05:34.365 INFO blam! eacb51ef75ad26ccaa8d4e9e4dcdbcff87fe402138ee406e28c8bd6209ce6c62