[INFO] fetching crate syn-helpers 0.2.1...
[INFO] documenting syn-helpers-0.2.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate syn-helpers 0.2.1 into /workspace/builds/worker-25/source
[INFO] validating manifest of crates.io crate syn-helpers 0.2.1 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 syn-helpers 0.2.1
[INFO] finished tweaking crates.io crate syn-helpers 0.2.1
[INFO] tweaked toml for crates.io crate syn-helpers 0.2.1 written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] a477632abbf2316b5510135e77e813741a8612815cc4f3b102dbe04444cd1611
[INFO] running `Command { std: "docker" "start" "-a" "a477632abbf2316b5510135e77e813741a8612815cc4f3b102dbe04444cd1611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a477632abbf2316b5510135e77e813741a8612815cc4f3b102dbe04444cd1611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a477632abbf2316b5510135e77e813741a8612815cc4f3b102dbe04444cd1611", kill_on_drop: false }`
[INFO] [stdout] a477632abbf2316b5510135e77e813741a8612815cc4f3b102dbe04444cd1611
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] 7fa56771b221e5a9539950e6cd01135c19573d71e9cd3ff2479a83ba0e23c13e
[INFO] running `Command { std: "docker" "start" "-a" "7fa56771b221e5a9539950e6cd01135c19573d71e9cd3ff2479a83ba0e23c13e", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]     Checking unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking either_n v0.2.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking Inflector v0.11.4
[INFO] [stderr]  Documenting syn-helpers v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.60s
[INFO] running `Command { std: "docker" "inspect" "7fa56771b221e5a9539950e6cd01135c19573d71e9cd3ff2479a83ba0e23c13e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fa56771b221e5a9539950e6cd01135c19573d71e9cd3ff2479a83ba0e23c13e", kill_on_drop: false }`
[INFO] [stdout] 7fa56771b221e5a9539950e6cd01135c19573d71e9cd3ff2479a83ba0e23c13e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] 4a92b768f5ba8fabfcada4bca6ce1a1d348a99336c0ee8d3f9d2f479073fbe8e
[INFO] running `Command { std: "docker" "start" "-a" "4a92b768f5ba8fabfcada4bca6ce1a1d348a99336c0ee8d3f9d2f479073fbe8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]     Checking unicode-ident v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking either_n v0.2.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking Inflector v0.11.4
[INFO] [stderr]  Documenting syn-helpers v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.37s
[INFO] running `Command { std: "docker" "inspect" "4a92b768f5ba8fabfcada4bca6ce1a1d348a99336c0ee8d3f9d2f479073fbe8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a92b768f5ba8fabfcada4bca6ce1a1d348a99336c0ee8d3f9d2f479073fbe8e", kill_on_drop: false }`
[INFO] [stdout] 4a92b768f5ba8fabfcada4bca6ce1a1d348a99336c0ee8d3f9d2f479073fbe8e