[INFO] cloning repository https://github.com/J-TAG/rust-json-benchmark
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/J-TAG/rust-json-benchmark" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJ-TAG%2Frust-json-benchmark", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJ-TAG%2Frust-json-benchmark'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 95820a1ad37589481f91a79dec1b171cf0f2530f
[INFO] testing J-TAG/rust-json-benchmark against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJ-TAG%2Frust-json-benchmark" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/J-TAG/rust-json-benchmark on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/J-TAG/rust-json-benchmark
[INFO] finished tweaking git repo https://github.com/J-TAG/rust-json-benchmark
[INFO] tweaked toml for git repo https://github.com/J-TAG/rust-json-benchmark written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/J-TAG/rust-json-benchmark already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7242d83508093077595ee25a641de1acb0b6cde6f528b2d0cac3afe3ee489d0e
[INFO] running `Command { std: "docker" "start" "-a" "7242d83508093077595ee25a641de1acb0b6cde6f528b2d0cac3afe3ee489d0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7242d83508093077595ee25a641de1acb0b6cde6f528b2d0cac3afe3ee489d0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7242d83508093077595ee25a641de1acb0b6cde6f528b2d0cac3afe3ee489d0e", kill_on_drop: false }`
[INFO] [stdout] 7242d83508093077595ee25a641de1acb0b6cde6f528b2d0cac3afe3ee489d0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 095883073d4ae7c2d1c489aa928a47b741d51f8cb586f4d1442e411c9c494995
[INFO] running `Command { std: "docker" "start" "-a" "095883073d4ae7c2d1c489aa928a47b741d51f8cb586f4d1442e411c9c494995", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling rust-json-benchmark v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.23s
[INFO] running `Command { std: "docker" "inspect" "095883073d4ae7c2d1c489aa928a47b741d51f8cb586f4d1442e411c9c494995", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "095883073d4ae7c2d1c489aa928a47b741d51f8cb586f4d1442e411c9c494995", kill_on_drop: false }`
[INFO] [stdout] 095883073d4ae7c2d1c489aa928a47b741d51f8cb586f4d1442e411c9c494995
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa19c7e5a988eb271c463bb7d8523284c90e9c4ff5db4218cf94481d2e84f8a1
[INFO] running `Command { std: "docker" "start" "-a" "aa19c7e5a988eb271c463bb7d8523284c90e9c4ff5db4218cf94481d2e84f8a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-json-benchmark v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.80s
[INFO] running `Command { std: "docker" "inspect" "aa19c7e5a988eb271c463bb7d8523284c90e9c4ff5db4218cf94481d2e84f8a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa19c7e5a988eb271c463bb7d8523284c90e9c4ff5db4218cf94481d2e84f8a1", kill_on_drop: false }`
[INFO] [stdout] aa19c7e5a988eb271c463bb7d8523284c90e9c4ff5db4218cf94481d2e84f8a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 83e89242fabbda947e7226b95cafc5da1fa8ac4fd4075782a3c46a16ef55a9a1
[INFO] running `Command { std: "docker" "start" "-a" "83e89242fabbda947e7226b95cafc5da1fa8ac4fd4075782a3c46a16ef55a9a1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_json_benchmark-4bec12911baf3998)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "83e89242fabbda947e7226b95cafc5da1fa8ac4fd4075782a3c46a16ef55a9a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83e89242fabbda947e7226b95cafc5da1fa8ac4fd4075782a3c46a16ef55a9a1", kill_on_drop: false }`
[INFO] [stdout] 83e89242fabbda947e7226b95cafc5da1fa8ac4fd4075782a3c46a16ef55a9a1