[INFO] cloning repository https://github.com/weikengchen/powers_of_tau
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/weikengchen/powers_of_tau" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fweikengchen%2Fpowers_of_tau", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fweikengchen%2Fpowers_of_tau'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7505e84378db986dce3140b3b8c0b712bb793c93
[INFO] checking weikengchen/powers_of_tau against master#00bfd6b2734d9c28a147bf237490995731781fdd for pr-117984
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fweikengchen%2Fpowers_of_tau" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/weikengchen/powers_of_tau on toolchain 00bfd6b2734d9c28a147bf237490995731781fdd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/weikengchen/powers_of_tau
[INFO] finished tweaking git repo https://github.com/weikengchen/powers_of_tau
[INFO] tweaked toml for git repo https://github.com/weikengchen/powers_of_tau written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/weikengchen/powers_of_tau already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bellman v0.1.0
[INFO] [stderr]   Downloaded crossbeam v0.3.2
[INFO] [stderr]   Downloaded libc v0.2.109
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 05d6dda06815a6986ab7b6cbf7411451adcd546ca7de6598a263cb7eed0a8f3f
[INFO] running `Command { std: "docker" "start" "-a" "05d6dda06815a6986ab7b6cbf7411451adcd546ca7de6598a263cb7eed0a8f3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05d6dda06815a6986ab7b6cbf7411451adcd546ca7de6598a263cb7eed0a8f3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05d6dda06815a6986ab7b6cbf7411451adcd546ca7de6598a263cb7eed0a8f3f", kill_on_drop: false }`
[INFO] [stdout] 05d6dda06815a6986ab7b6cbf7411451adcd546ca7de6598a263cb7eed0a8f3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6649ecea5b5b6fd5cfec693c4798bb5f9c1320d1895f86be94ec54c382348c7
[INFO] running `Command { std: "docker" "start" "-a" "c6649ecea5b5b6fd5cfec693c4798bb5f9c1320d1895f86be94ec54c382348c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.109
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]    Compiling hex-literal v0.3.4
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking crossbeam v0.3.2
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking bit-vec v0.4.4
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking blake2 v0.8.1
[INFO] [stderr]     Checking pairing v0.14.0 (/opt/rustwide/workdir/pairing)
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking bellman v0.1.0
[INFO] [stderr]     Checking powersoftau v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 3.12s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "c6649ecea5b5b6fd5cfec693c4798bb5f9c1320d1895f86be94ec54c382348c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6649ecea5b5b6fd5cfec693c4798bb5f9c1320d1895f86be94ec54c382348c7", kill_on_drop: false }`
[INFO] [stdout] c6649ecea5b5b6fd5cfec693c4798bb5f9c1320d1895f86be94ec54c382348c7