[INFO] updating cached repository https://github.com/Pratyush/snark-tutorial
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/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] 72d0f74366e9d11576f8f6a546b40040ca0d55a3
[INFO] checking Pratyush/snark-tutorial against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FPratyush%2Fsnark-tutorial" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Pratyush/snark-tutorial on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Pratyush/snark-tutorial
[INFO] finished tweaking git repo https://github.com/Pratyush/snark-tutorial
[INFO] tweaked toml for git repo https://github.com/Pratyush/snark-tutorial written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Pratyush/snark-tutorial already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ae2632f5d46533dba9890b13c2f4a931e8611c935d634bf561a0b505a7fe7bd4
[INFO] running `"docker" "start" "-a" "ae2632f5d46533dba9890b13c2f4a931e8611c935d634bf561a0b505a7fe7bd4"`
[INFO] [stderr]    Compiling libc v0.2.59
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]     Checking bench-utils v0.1.0 (https://github.com/scipr-lab/zexe#0685bd1b)
[INFO] [stderr]    Compiling backtrace-sys v0.1.30
[INFO] [stderr]    Compiling rand_derive v0.3.1
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking backtrace v0.3.32
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling derivative v1.0.2
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking algebra v0.1.0 (https://github.com/scipr-lab/zexe#0685bd1b)
[INFO] [stderr]     Checking snark v0.1.0 (https://github.com/scipr-lab/zexe#0685bd1b)
[INFO] [stderr]     Checking snark-tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `"docker" "inspect" "ae2632f5d46533dba9890b13c2f4a931e8611c935d634bf561a0b505a7fe7bd4"`
[INFO] running `"docker" "rm" "-f" "ae2632f5d46533dba9890b13c2f4a931e8611c935d634bf561a0b505a7fe7bd4"`
[INFO] [stdout] ae2632f5d46533dba9890b13c2f4a931e8611c935d634bf561a0b505a7fe7bd4