[INFO] updating cached repository https://github.com/matterinc/Edcon2019_material
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b26613ad545bf5319d76bd52a083e83c0db75280
[INFO] checking matterinc/Edcon2019_material against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatterinc%2FEdcon2019_material" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matterinc/Edcon2019_material on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/matterinc/Edcon2019_material
[INFO] finished tweaking git repo https://github.com/matterinc/Edcon2019_material
[INFO] tweaked toml for git repo https://github.com/matterinc/Edcon2019_material written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/matterinc/Edcon2019_material already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2588373d8e2dd748696e4e62cbf2fcf258eae58df2ca7ec934eac6d8db411782
[INFO] running `"docker" "start" "-a" "2588373d8e2dd748696e4e62cbf2fcf258eae58df2ca7ec934eac6d8db411782"`
[INFO] [stderr]    Compiling serde v1.0.87
[INFO] [stderr]    Compiling crunchy v0.1.6
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking blake2-rfc v0.2.18 (https://github.com/gtank/blake2-rfc?rev=7a5b5fc99ae483a0043db7547fb79a6fa44b88a9#7a5b5fc9)
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking num-bigint v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.87
[INFO] [stderr]     Checking tiny-keccak v1.4.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]    Compiling ff_derive v0.4.0 (https://github.com/matterinc/ff?tag=0.5#056a13b9)
[INFO] [stderr]     Checking serde_json v1.0.38
[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 edcon_demo v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `"docker" "inspect" "2588373d8e2dd748696e4e62cbf2fcf258eae58df2ca7ec934eac6d8db411782"`
[INFO] running `"docker" "rm" "-f" "2588373d8e2dd748696e4e62cbf2fcf258eae58df2ca7ec934eac6d8db411782"`
[INFO] [stdout] 2588373d8e2dd748696e4e62cbf2fcf258eae58df2ca7ec934eac6d8db411782