[INFO] fetching crate subplot 0.1.0...
[INFO] checking subplot-0.1.0 against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] extracting crate subplot 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate subplot 0.1.0 on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate subplot 0.1.0
[INFO] finished tweaking crates.io crate subplot 0.1.0
[INFO] tweaked toml for crates.io crate subplot 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate subplot 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded structopt-derive v0.3.2
[INFO] [stderr]   Downloaded structopt v0.3.2
[INFO] [stderr]   Downloaded tempfile-fast v0.3.1
[INFO] [stderr]   Downloaded roadmap v0.1.0
[INFO] [stderr]   Downloaded pandoc_ast v0.7.2
[INFO] [stderr]   Downloaded pandoc v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2887b15e25e00f7d9ed020e51f51d63185f595f45f6503ed257ac96a3abd9498
[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" "2887b15e25e00f7d9ed020e51f51d63185f595f45f6503ed257ac96a3abd9498", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2887b15e25e00f7d9ed020e51f51d63185f595f45f6503ed257ac96a3abd9498", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2887b15e25e00f7d9ed020e51f51d63185f595f45f6503ed257ac96a3abd9498", kill_on_drop: false }`
[INFO] [stdout] 2887b15e25e00f7d9ed020e51f51d63185f595f45f6503ed257ac96a3abd9498
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68ccfa255cf3a765c324b37fc9d226680ea45198e03ed1de4c4c388d0b1fdab0
[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" "68ccfa255cf3a765c324b37fc9d226680ea45198e03ed1de4c4c388d0b1fdab0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.6.5
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking pandoc v0.7.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking tempfile-fast v0.3.1
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling structopt-derive v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking structopt v0.3.2
[INFO] [stderr]     Checking roadmap v0.1.0
[INFO] [stderr]     Checking pandoc_ast v0.7.2
[INFO] [stderr]     Checking subplot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.75s
[INFO] running `Command { std: "docker" "inspect" "68ccfa255cf3a765c324b37fc9d226680ea45198e03ed1de4c4c388d0b1fdab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68ccfa255cf3a765c324b37fc9d226680ea45198e03ed1de4c4c388d0b1fdab0", kill_on_drop: false }`
[INFO] [stdout] 68ccfa255cf3a765c324b37fc9d226680ea45198e03ed1de4c4c388d0b1fdab0