[INFO] fetching crate args-to-json 1.0.0...
[INFO] checking args-to-json-1.0.0 against master#7dc9ff5c629753b6930ecfe9a0446538b8e25fb7 for pr-85387
[INFO] extracting crate args-to-json 1.0.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate args-to-json 1.0.0 on toolchain 7dc9ff5c629753b6930ecfe9a0446538b8e25fb7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate args-to-json 1.0.0
[INFO] finished tweaking crates.io crate args-to-json 1.0.0
[INFO] tweaked toml for crates.io crate args-to-json 1.0.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate args-to-json 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0280a87e2c43802796e65ea54f080b2d92da90fe67b931a1e45e59454d2509b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c0280a87e2c43802796e65ea54f080b2d92da90fe67b931a1e45e59454d2509b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0280a87e2c43802796e65ea54f080b2d92da90fe67b931a1e45e59454d2509b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0280a87e2c43802796e65ea54f080b2d92da90fe67b931a1e45e59454d2509b", kill_on_drop: false }`
[INFO] [stdout] c0280a87e2c43802796e65ea54f080b2d92da90fe67b931a1e45e59454d2509b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ce349cccea75db34498b725f77c58288ad7f427511ac36f743f623b935f7e73
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7ce349cccea75db34498b725f77c58288ad7f427511ac36f743f623b935f7e73", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking args-to-json v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.32s
[INFO] running `Command { std: "docker" "inspect" "7ce349cccea75db34498b725f77c58288ad7f427511ac36f743f623b935f7e73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ce349cccea75db34498b725f77c58288ad7f427511ac36f743f623b935f7e73", kill_on_drop: false }`
[INFO] [stdout] 7ce349cccea75db34498b725f77c58288ad7f427511ac36f743f623b935f7e73