[INFO] fetching crate rust-forth-compiler 0.5.3...
[INFO] documenting rust-forth-compiler-0.5.3 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate rust-forth-compiler 0.5.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rust-forth-compiler 0.5.3 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-forth-compiler 0.5.3
[INFO] finished tweaking crates.io crate rust-forth-compiler 0.5.3
[INFO] tweaked toml for crates.io crate rust-forth-compiler 0.5.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate rust-forth-compiler 0.5.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5a8a977d3066429e5ea9ddfe96d8801c7a6506041f6962a6877c18f3547f9bc
[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" "f5a8a977d3066429e5ea9ddfe96d8801c7a6506041f6962a6877c18f3547f9bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5a8a977d3066429e5ea9ddfe96d8801c7a6506041f6962a6877c18f3547f9bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5a8a977d3066429e5ea9ddfe96d8801c7a6506041f6962a6877c18f3547f9bc", kill_on_drop: false }`
[INFO] [stdout] f5a8a977d3066429e5ea9ddfe96d8801c7a6506041f6962a6877c18f3547f9bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e87f969696d6ff8674221d2493ac77136e945d7a7a5296c789343e21e4b0ff3a
[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" "e87f969696d6ff8674221d2493ac77136e945d7a7a5296c789343e21e4b0ff3a", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-forth-tokenizer v0.2.0
[INFO] [stderr]     Checking rust-simple-stack-processor v0.7.0
[INFO] [stderr]  Documenting rust-forth-compiler v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "e87f969696d6ff8674221d2493ac77136e945d7a7a5296c789343e21e4b0ff3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e87f969696d6ff8674221d2493ac77136e945d7a7a5296c789343e21e4b0ff3a", kill_on_drop: false }`
[INFO] [stdout] e87f969696d6ff8674221d2493ac77136e945d7a7a5296c789343e21e4b0ff3a