Sep 19 13:33:15.312 INFO checking zcash-hackworks/sapling-mpc against master#1e21c9a297a9fe668d62887a3a6a4add8e717b17 for pr-54352
Sep 19 13:33:15.312 INFO running: cargo +1e21c9a297a9fe668d62887a3a6a4add8e717b17-alt check --frozen --all --all-targets
Sep 19 13:33:15.312 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54352/master#1e21c9a297a9fe668d62887a3a6a4add8e717b17:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54352/worker-6/master#1e21c9a297a9fe668d62887a3a6a4add8e717b17:/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 +1e21c9a297a9fe668d62887a3a6a4add8e717b17-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 13:33:15.560 INFO blam! 4f802750b22015ab87daf95acf207351c445ca9c9d498cef7ce3b74538ed5e48
Sep 19 13:33:15.561 INFO running `"docker" "start" "-a" "4f802750b22015ab87daf95acf207351c445ca9c9d498cef7ce3b74538ed5e48"`
Sep 19 13:33:16.870 INFO kablam! usermod: no changes
Sep 19 13:33:16.949 INFO kablam! error: failed to load source for a dependency on `sapling-crypto`
Sep 19 13:33:16.949 INFO kablam! 
Sep 19 13:33:16.949 INFO kablam! Caused by:
Sep 19 13:33:16.949 INFO kablam!   Unable to update https://github.com/zcash-hackworks/sapling-crypto?rev=eb409fa3cf8df215ae8d35f5e385751a0c5ffb85#eb409fa3
Sep 19 13:33:16.949 INFO kablam! 
Sep 19 13:33:16.949 INFO kablam! Caused by:
Sep 19 13:33:16.949 INFO kablam!   failed to open: /cargo-home/git/.cargo-lock-git
Sep 19 13:33:16.949 INFO kablam! 
Sep 19 13:33:16.949 INFO kablam! Caused by:
Sep 19 13:33:16.949 INFO kablam!   Read-only file system (os error 30)
Sep 19 13:33:16.949 INFO kablam! su: No module specific data is present
Sep 19 13:33:17.907 INFO running `"docker" "rm" "-f" "4f802750b22015ab87daf95acf207351c445ca9c9d498cef7ce3b74538ed5e48"`
Sep 19 13:33:18.046 INFO blam! 4f802750b22015ab87daf95acf207351c445ca9c9d498cef7ce3b74538ed5e48