[INFO] cloning repository https://github.com/jcamposforner/rust-json-iter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jcamposforner/rust-json-iter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcamposforner%2Frust-json-iter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcamposforner%2Frust-json-iter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4b06f820efedf2149fe06c5d7a95bbdcaea07ff0
[INFO] checking jcamposforner/rust-json-iter against try#81275a1445c7502a974118e0c69b795ab60be991 for pr-80243
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcamposforner%2Frust-json-iter" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jcamposforner/rust-json-iter on toolchain 81275a1445c7502a974118e0c69b795ab60be991
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jcamposforner/rust-json-iter
[INFO] finished tweaking git repo https://github.com/jcamposforner/rust-json-iter
[INFO] tweaked toml for git repo https://github.com/jcamposforner/rust-json-iter written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/jcamposforner/rust-json-iter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.98
[INFO] [stderr]   Downloaded syn v0.15.42
[INFO] [stderr]   Downloaded serde_derive v1.0.98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "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] 983a1d2796aa0c38458101bfe3d8257429ac75dbc140b5b1598840dd0607cf69
[INFO] running `Command { std: "docker" "start" "-a" "983a1d2796aa0c38458101bfe3d8257429ac75dbc140b5b1598840dd0607cf69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "983a1d2796aa0c38458101bfe3d8257429ac75dbc140b5b1598840dd0607cf69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "983a1d2796aa0c38458101bfe3d8257429ac75dbc140b5b1598840dd0607cf69", kill_on_drop: false }`
[INFO] [stdout] 983a1d2796aa0c38458101bfe3d8257429ac75dbc140b5b1598840dd0607cf69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "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] 571d3f3bcff4f3a1f6e048a1a9dada65f568768ab890a09bffeae2daee12ba23
[INFO] running `Command { std: "docker" "start" "-a" "571d3f3bcff4f3a1f6e048a1a9dada65f568768ab890a09bffeae2daee12ba23", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking pro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.91s
[INFO] running `Command { std: "docker" "inspect" "571d3f3bcff4f3a1f6e048a1a9dada65f568768ab890a09bffeae2daee12ba23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "571d3f3bcff4f3a1f6e048a1a9dada65f568768ab890a09bffeae2daee12ba23", kill_on_drop: false }`
[INFO] [stdout] 571d3f3bcff4f3a1f6e048a1a9dada65f568768ab890a09bffeae2daee12ba23