[INFO] cloning repository https://github.com/swingsmith2/halo2-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/swingsmith2/halo2-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswingsmith2%2Fhalo2-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswingsmith2%2Fhalo2-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 856c92884a53ae3c35086986045f9881c38834fc
[INFO] checking swingsmith2/halo2-demo against try#e622d8d7bed4f2668d446e06c6c1436ecae15796 for pr-156776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswingsmith2%2Fhalo2-demo" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/swingsmith2/halo2-demo
[INFO] finished tweaking git repo https://github.com/swingsmith2/halo2-demo
[INFO] tweaked toml for git repo https://github.com/swingsmith2/halo2-demo written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/swingsmith2/halo2-demo on toolchain e622d8d7bed4f2668d446e06c6c1436ecae15796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/swingsmith2/halo2-demo 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" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking swingsmith2/halo2-demo against try#e622d8d7bed4f2668d446e06c6c1436ecae15796 for pr-156776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswingsmith2%2Fhalo2-demo" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/swingsmith2/halo2-demo
[INFO] finished tweaking git repo https://github.com/swingsmith2/halo2-demo
[INFO] tweaked toml for git repo https://github.com/swingsmith2/halo2-demo written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/swingsmith2/halo2-demo on toolchain e622d8d7bed4f2668d446e06c6c1436ecae15796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/swingsmith2/halo2-demo 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" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded halo2_proofs v0.3.2
[INFO] [stderr]   Downloaded blake2b_simd v1.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da474c4225340bbdba394a0691738ccb6d41dfaeeadb2bddd66ee6461f4d0e2a
[INFO] running `Command { std: "docker" "start" "-a" "da474c4225340bbdba394a0691738ccb6d41dfaeeadb2bddd66ee6461f4d0e2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da474c4225340bbdba394a0691738ccb6d41dfaeeadb2bddd66ee6461f4d0e2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da474c4225340bbdba394a0691738ccb6d41dfaeeadb2bddd66ee6461f4d0e2a", kill_on_drop: false }`
[INFO] [stdout] da474c4225340bbdba394a0691738ccb6d41dfaeeadb2bddd66ee6461f4d0e2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a19857c092ab71e2d7a1aa4af97c8b0ecb40b715869d3ff4444cfaa6ec1d6ab
[INFO] running `Command { std: "docker" "start" "-a" "0a19857c092ab71e2d7a1aa4af97c8b0ecb40b715869d3ff4444cfaa6ec1d6ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.184
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]     Checking constant_time_eq v0.4.2
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking tracing-core v0.1.36
[INFO] [stderr]     Checking maybe-rayon v0.1.1
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking blake2b_simd v1.0.4
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking getrandom v0.2.17
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking ff v0.13.1
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking pasta_curves v0.5.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking halo2_proofs v0.3.2
[INFO] [stderr]     Checking halo2-demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.69s
[INFO] running `Command { std: "docker" "inspect" "0a19857c092ab71e2d7a1aa4af97c8b0ecb40b715869d3ff4444cfaa6ec1d6ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a19857c092ab71e2d7a1aa4af97c8b0ecb40b715869d3ff4444cfaa6ec1d6ab", kill_on_drop: false }`
[INFO] [stdout] 0a19857c092ab71e2d7a1aa4af97c8b0ecb40b715869d3ff4444cfaa6ec1d6ab