[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] checking J-TAG/rust-json-benchmark against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJ-TAG%2Frust-json-benchmark" "/workspace/builds/worker-35/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-35/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/J-TAG/rust-json-benchmark on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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-35/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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a28d85a4d40ba387698792215d9a9d0b9dc60cd1b961da787150816524b7fd4
[INFO] running `Command { std: "docker" "start" "-a" "3a28d85a4d40ba387698792215d9a9d0b9dc60cd1b961da787150816524b7fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a28d85a4d40ba387698792215d9a9d0b9dc60cd1b961da787150816524b7fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a28d85a4d40ba387698792215d9a9d0b9dc60cd1b961da787150816524b7fd4", kill_on_drop: false }`
[INFO] [stdout] 3a28d85a4d40ba387698792215d9a9d0b9dc60cd1b961da787150816524b7fd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd762233c138e9096b652b4bb33e4ba6ab003a5c1efb2034bfd9431fc25219b4
[INFO] running `Command { std: "docker" "start" "-a" "fd762233c138e9096b652b4bb33e4ba6ab003a5c1efb2034bfd9431fc25219b4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking rust-json-benchmark v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.50s
[INFO] running `Command { std: "docker" "inspect" "fd762233c138e9096b652b4bb33e4ba6ab003a5c1efb2034bfd9431fc25219b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd762233c138e9096b652b4bb33e4ba6ab003a5c1efb2034bfd9431fc25219b4", kill_on_drop: false }`
[INFO] [stdout] fd762233c138e9096b652b4bb33e4ba6ab003a5c1efb2034bfd9431fc25219b4