Sep 20 20:20:42.890 INFO checking zcash-hackworks/sapling-mpc against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 20 20:20:42.890 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 20 20:20:42.890 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-4/master#f7f4c500b46603386e940f116b469c7adc043a6d:/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 +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 20:20:43.178 INFO blam! 49279a3106b26de4486c6c05466490da5a383c280bd81396964bbfacc11129f5
Sep 20 20:20:43.180 INFO running `"docker" "start" "-a" "49279a3106b26de4486c6c05466490da5a383c280bd81396964bbfacc11129f5"`
Sep 20 20:20:44.343 INFO kablam! usermod: no changes
Sep 20 20:20:44.410 INFO kablam! error: failed to load source for a dependency on `sapling-crypto`
Sep 20 20:20:44.410 INFO kablam! 
Sep 20 20:20:44.410 INFO kablam! Caused by:
Sep 20 20:20:44.410 INFO kablam!   Unable to update https://github.com/zcash-hackworks/sapling-crypto?rev=eb409fa3cf8df215ae8d35f5e385751a0c5ffb85#eb409fa3
Sep 20 20:20:44.410 INFO kablam! 
Sep 20 20:20:44.410 INFO kablam! Caused by:
Sep 20 20:20:44.410 INFO kablam!   failed to open: /cargo-home/git/.cargo-lock-git
Sep 20 20:20:44.410 INFO kablam! 
Sep 20 20:20:44.410 INFO kablam! Caused by:
Sep 20 20:20:44.410 INFO kablam!   Read-only file system (os error 30)
Sep 20 20:20:44.414 INFO kablam! su: No module specific data is present
Sep 20 20:20:45.253 INFO running `"docker" "rm" "-f" "49279a3106b26de4486c6c05466490da5a383c280bd81396964bbfacc11129f5"`
Sep 20 20:20:45.368 INFO blam! 49279a3106b26de4486c6c05466490da5a383c280bd81396964bbfacc11129f5