[INFO] fetching crate format 0.2.4...
[INFO] documenting format-0.2.4 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate format 0.2.4 into /workspace/builds/worker-52/source
[INFO] validating manifest of crates.io crate format 0.2.4 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate format 0.2.4
[INFO] finished tweaking crates.io crate format 0.2.4
[INFO] tweaked toml for crates.io crate format 0.2.4 written to /workspace/builds/worker-52/source/Cargo.toml
[INFO] crate crates.io crate format 0.2.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e2bbf3844695451c1711dfb07cee15b9025e8a66e962866d759d5532973a6cac
[INFO] running `Command { std: "docker" "start" "-a" "e2bbf3844695451c1711dfb07cee15b9025e8a66e962866d759d5532973a6cac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2bbf3844695451c1711dfb07cee15b9025e8a66e962866d759d5532973a6cac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2bbf3844695451c1711dfb07cee15b9025e8a66e962866d759d5532973a6cac", kill_on_drop: false }`
[INFO] [stdout] e2bbf3844695451c1711dfb07cee15b9025e8a66e962866d759d5532973a6cac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfe4998deeea786652e912066e5c296488418fd412a4cfe91618efdad0db50b4
[INFO] running `Command { std: "docker" "start" "-a" "dfe4998deeea786652e912066e5c296488418fd412a4cfe91618efdad0db50b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]     Checking format-core v0.2.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling format-macro v0.2.4
[INFO] [stderr]  Documenting format v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.62s
[INFO] running `Command { std: "docker" "inspect" "dfe4998deeea786652e912066e5c296488418fd412a4cfe91618efdad0db50b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfe4998deeea786652e912066e5c296488418fd412a4cfe91618efdad0db50b4", kill_on_drop: false }`
[INFO] [stdout] dfe4998deeea786652e912066e5c296488418fd412a4cfe91618efdad0db50b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 5a201a2bffa15a2dd810194c422e7d459d2daec5e91a3308d7ebeabfbaa69b50
[INFO] running `Command { std: "docker" "start" "-a" "5a201a2bffa15a2dd810194c422e7d459d2daec5e91a3308d7ebeabfbaa69b50", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]     Checking format-core v0.2.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling format-macro v0.2.4
[INFO] [stderr]  Documenting format v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.46s
[INFO] running `Command { std: "docker" "inspect" "5a201a2bffa15a2dd810194c422e7d459d2daec5e91a3308d7ebeabfbaa69b50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a201a2bffa15a2dd810194c422e7d459d2daec5e91a3308d7ebeabfbaa69b50", kill_on_drop: false }`
[INFO] [stdout] 5a201a2bffa15a2dd810194c422e7d459d2daec5e91a3308d7ebeabfbaa69b50