[INFO] updating cached repository matterinc/plasma_cash_history_snark
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/matterinc/plasma_cash_history_snark
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/matterinc/plasma_cash_history_snark" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/matterinc/plasma_cash_history_snark"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/matterinc/plasma_cash_history_snark'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/matterinc/plasma_cash_history_snark" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/matterinc/plasma_cash_history_snark"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/matterinc/plasma_cash_history_snark'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5d6158af998f930a0cd7e77d88d1f53d688187ce
[INFO] sha for GitHub repo matterinc/plasma_cash_history_snark: 5d6158af998f930a0cd7e77d88d1f53d688187ce
[INFO] validating manifest of matterinc/plasma_cash_history_snark on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of matterinc/plasma_cash_history_snark on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing matterinc/plasma_cash_history_snark
[INFO] finished frobbing matterinc/plasma_cash_history_snark
[INFO] frobbed toml for matterinc/plasma_cash_history_snark written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/matterinc/plasma_cash_history_snark/Cargo.toml
[INFO] started frobbing matterinc/plasma_cash_history_snark
[INFO] finished frobbing matterinc/plasma_cash_history_snark
[INFO] frobbed toml for matterinc/plasma_cash_history_snark written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/matterinc/plasma_cash_history_snark/Cargo.toml
[INFO] crate matterinc/plasma_cash_history_snark already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking matterinc/plasma_cash_history_snark against try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-6/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/matterinc/plasma_cash_history_snark:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c8da01614557a40861524e726e7deed4abc0a569b8499d620df0feb2d0339e8f
[INFO] running `"docker" "start" "-a" "c8da01614557a40861524e726e7deed4abc0a569b8499d620df0feb2d0339e8f"`
[INFO] [stderr]    Compiling num-bigint v0.2.1
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking blake2-rfc v0.2.18 (https://github.com/gtank/blake2-rfc?rev=7a5b5fc99ae483a0043db7547fb79a6fa44b88a9#7a5b5fc9)
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking crossbeam v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling ff_derive v0.4.0 (https://github.com/matterinc/ff?tag=0.5#056a13b9)
[INFO] [stderr]     Checking ff v0.5.0 (https://github.com/matterinc/ff?tag=0.5#056a13b9)
[INFO] [stderr]     Checking pairing v0.16.2 (https://github.com/matterinc/pairing?tag=0.16.2#c2af46ca)
[INFO] [stderr]     Checking bellman v0.2.0 (https://github.com/matterinc/bellman?tag=0.2.0#6e45a4b2)
[INFO] [stderr]     Checking sapling-crypto v0.0.4 (https://github.com/matterinc/sapling-crypto?tag=0.0.4#6ac48e2f)
[INFO] [stderr]     Checking plasma_cash_history_snark v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 05s
[INFO] running `"docker" "inspect" "c8da01614557a40861524e726e7deed4abc0a569b8499d620df0feb2d0339e8f"`
[INFO] running `"docker" "rm" "-f" "c8da01614557a40861524e726e7deed4abc0a569b8499d620df0feb2d0339e8f"`
[INFO] [stdout] c8da01614557a40861524e726e7deed4abc0a569b8499d620df0feb2d0339e8f