[INFO] cloning repository https://github.com/poma/zkutil
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/poma/zkutil" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpoma%2Fzkutil", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpoma%2Fzkutil'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a76ccb3021210777a8b75535add2a1d51b256f17
[INFO] checking poma/zkutil against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpoma%2Fzkutil" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/poma/zkutil on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/poma/zkutil
[INFO] finished tweaking git repo https://github.com/poma/zkutil
[INFO] tweaked toml for git repo https://github.com/poma/zkutil written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/poma/zkutil already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded exitcode v1.1.2
[INFO] [stderr]   Downloaded crossbeam v0.7.3
[INFO] [stderr]   Downloaded proc-macro-error-attr v0.4.11
[INFO] [stderr]   Downloaded proc-macro-error v0.4.11
[INFO] [stderr]   Downloaded syn v1.0.16
[INFO] [stderr]   Downloaded bit-vec v0.6.1
[INFO] [stderr]   Downloaded ff_derive_ce v0.8.0
[INFO] [stderr]   Downloaded ff_ce v0.10.2
[INFO] [stderr]   Downloaded clap_derive-v3 v3.0.0-beta.1
[INFO] [stderr]   Downloaded clap-v3 v3.0.0-beta.1
[INFO] [stderr]   Downloaded pairing_ce v0.21.0
[INFO] [stderr]   Downloaded bellman_ce v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a4f6e611b21afb0899c37a5237ee19ba420b012e6f057d3e795bc93426152c5d
[INFO] running `Command { std: "docker" "start" "-a" "a4f6e611b21afb0899c37a5237ee19ba420b012e6f057d3e795bc93426152c5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4f6e611b21afb0899c37a5237ee19ba420b012e6f057d3e795bc93426152c5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4f6e611b21afb0899c37a5237ee19ba420b012e6f057d3e795bc93426152c5d", kill_on_drop: false }`
[INFO] [stdout] a4f6e611b21afb0899c37a5237ee19ba420b012e6f057d3e795bc93426152c5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 975b91d6022e3cf0ebabecca6f3189f25c55c9c1abfbc39c09f6140b6199deef
[INFO] running `Command { std: "docker" "start" "-a" "975b91d6022e3cf0ebabecca6f3189f25c55c9c1abfbc39c09f6140b6199deef", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]     Checking strsim v0.9.3
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking exitcode v1.1.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking num-traits v0.2.11
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.11
[INFO] [stderr]    Compiling proc-macro-error v0.4.11
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]    Compiling hex-literal-impl v0.2.1
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking hex-literal v0.2.1
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling ff_derive_ce v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling clap_derive-v3 v3.0.0-beta.1
[INFO] [stderr]     Checking ff_ce v0.10.2
[INFO] [stderr]     Checking pairing_ce v0.21.0
[INFO] [stderr]     Checking clap-v3 v3.0.0-beta.1
[INFO] [stderr]     Checking bellman_ce v0.3.4
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking zkutil v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.40s
[INFO] running `Command { std: "docker" "inspect" "975b91d6022e3cf0ebabecca6f3189f25c55c9c1abfbc39c09f6140b6199deef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "975b91d6022e3cf0ebabecca6f3189f25c55c9c1abfbc39c09f6140b6199deef", kill_on_drop: false }`
[INFO] [stdout] 975b91d6022e3cf0ebabecca6f3189f25c55c9c1abfbc39c09f6140b6199deef