[INFO] cloning repository https://github.com/KaleBBuR/RJSON
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KaleBBuR/RJSON" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaleBBuR%2FRJSON", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaleBBuR%2FRJSON'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0b7bd182ebb879506ae9c9214522f4128642ff4
[INFO] checking KaleBBuR/RJSON against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaleBBuR%2FRJSON" "/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/KaleBBuR/RJSON on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KaleBBuR/RJSON
[INFO] finished tweaking git repo https://github.com/KaleBBuR/RJSON
[INFO] tweaked toml for git repo https://github.com/KaleBBuR/RJSON written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/KaleBBuR/RJSON already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 8c48814768523a61f9ad37e6cc425c79479e33660c23a3fd8de8e82fb4a3c032
[INFO] running `Command { std: "docker" "start" "-a" "8c48814768523a61f9ad37e6cc425c79479e33660c23a3fd8de8e82fb4a3c032", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c48814768523a61f9ad37e6cc425c79479e33660c23a3fd8de8e82fb4a3c032", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c48814768523a61f9ad37e6cc425c79479e33660c23a3fd8de8e82fb4a3c032", kill_on_drop: false }`
[INFO] [stdout] 8c48814768523a61f9ad37e6cc425c79479e33660c23a3fd8de8e82fb4a3c032
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] f1b82ba3c6f4f3c77ecd59ba7c8c056d1dd0f8c4a10ad579bbf2477da4ab3c39
[INFO] running `Command { std: "docker" "start" "-a" "f1b82ba3c6f4f3c77ecd59ba7c8c056d1dd0f8c4a10ad579bbf2477da4ab3c39", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking serde_syntax v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.28s
[INFO] running `Command { std: "docker" "inspect" "f1b82ba3c6f4f3c77ecd59ba7c8c056d1dd0f8c4a10ad579bbf2477da4ab3c39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1b82ba3c6f4f3c77ecd59ba7c8c056d1dd0f8c4a10ad579bbf2477da4ab3c39", kill_on_drop: false }`
[INFO] [stdout] f1b82ba3c6f4f3c77ecd59ba7c8c056d1dd0f8c4a10ad579bbf2477da4ab3c39