[INFO] fetching crate liquid-compiler 0.20.0-alpha.6...
[INFO] documenting liquid-compiler-0.20.0-alpha.6 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate liquid-compiler 0.20.0-alpha.6 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate liquid-compiler 0.20.0-alpha.6 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 liquid-compiler 0.20.0-alpha.6
[INFO] finished tweaking crates.io crate liquid-compiler 0.20.0-alpha.6
[INFO] tweaked toml for crates.io crate liquid-compiler 0.20.0-alpha.6 written to /workspace/builds/worker-20/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 32abb3de1c99e2596b3df23b61b5495ef9bc02c3055b4ec1897bddd39d282af1
[INFO] running `Command { std: "docker" "start" "-a" "32abb3de1c99e2596b3df23b61b5495ef9bc02c3055b4ec1897bddd39d282af1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32abb3de1c99e2596b3df23b61b5495ef9bc02c3055b4ec1897bddd39d282af1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32abb3de1c99e2596b3df23b61b5495ef9bc02c3055b4ec1897bddd39d282af1", kill_on_drop: false }`
[INFO] [stdout] 32abb3de1c99e2596b3df23b61b5495ef9bc02c3055b4ec1897bddd39d282af1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 36d643de68822d70c32a2f35fca44f96ee86c1aa367b59178604635f58493ea3
[INFO] running `Command { std: "docker" "start" "-a" "36d643de68822d70c32a2f35fca44f96ee86c1aa367b59178604635f58493ea3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking kstring v0.1.2
[INFO] [stderr]     Checking liquid-error v0.20.0-alpha.6
[INFO] [stderr]     Checking liquid-value v0.20.0-alpha.6
[INFO] [stderr]     Checking liquid-interpreter v0.20.0-alpha.6
[INFO] [stderr]  Documenting liquid-compiler v0.20.0-alpha.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.75s
[INFO] running `Command { std: "docker" "inspect" "36d643de68822d70c32a2f35fca44f96ee86c1aa367b59178604635f58493ea3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36d643de68822d70c32a2f35fca44f96ee86c1aa367b59178604635f58493ea3", kill_on_drop: false }`
[INFO] [stdout] 36d643de68822d70c32a2f35fca44f96ee86c1aa367b59178604635f58493ea3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 7f5036372047652635352ee19f31655256baf63c487a6a01c8a641db21b09eeb
[INFO] running `Command { std: "docker" "start" "-a" "7f5036372047652635352ee19f31655256baf63c487a6a01c8a641db21b09eeb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking kstring v0.1.2
[INFO] [stderr]     Checking liquid-error v0.20.0-alpha.6
[INFO] [stderr]     Checking liquid-value v0.20.0-alpha.6
[INFO] [stderr]     Checking liquid-interpreter v0.20.0-alpha.6
[INFO] [stderr]  Documenting liquid-compiler v0.20.0-alpha.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.36s
[INFO] running `Command { std: "docker" "inspect" "7f5036372047652635352ee19f31655256baf63c487a6a01c8a641db21b09eeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f5036372047652635352ee19f31655256baf63c487a6a01c8a641db21b09eeb", kill_on_drop: false }`
[INFO] [stdout] 7f5036372047652635352ee19f31655256baf63c487a6a01c8a641db21b09eeb