Sep 10 01:35:28.200 INFO checking zcash-hackworks/sapling-mpc against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 01:35:28.200 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 01:35:28.200 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-2/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 01:35:28.467 INFO blam! 3a15bac046d138a7c1c084501c95617b515fcab05f71dcc1808c3aaa17eb518a
Sep 10 01:35:28.469 INFO running `"docker" "start" "-a" "3a15bac046d138a7c1c084501c95617b515fcab05f71dcc1808c3aaa17eb518a"`
Sep 10 01:35:29.877 INFO kablam! usermod: no changes
Sep 10 01:35:29.942 INFO kablam! error: failed to load source for a dependency on `sapling-crypto`
Sep 10 01:35:29.942 INFO kablam! 
Sep 10 01:35:29.942 INFO kablam! Caused by:
Sep 10 01:35:29.942 INFO kablam!   Unable to update https://github.com/zcash-hackworks/sapling-crypto?rev=eb409fa3cf8df215ae8d35f5e385751a0c5ffb85#eb409fa3
Sep 10 01:35:29.942 INFO kablam! 
Sep 10 01:35:29.942 INFO kablam! Caused by:
Sep 10 01:35:29.942 INFO kablam!   failed to open: /cargo-home/git/.cargo-lock-git
Sep 10 01:35:29.942 INFO kablam! 
Sep 10 01:35:29.942 INFO kablam! Caused by:
Sep 10 01:35:29.942 INFO kablam!   Read-only file system (os error 30)
Sep 10 01:35:29.966 INFO kablam! su: No module specific data is present
Sep 10 01:35:30.999 INFO running `"docker" "rm" "-f" "3a15bac046d138a7c1c084501c95617b515fcab05f71dcc1808c3aaa17eb518a"`
Sep 10 01:35:31.108 INFO blam! 3a15bac046d138a7c1c084501c95617b515fcab05f71dcc1808c3aaa17eb518a