[INFO] fetching crate mechtron-common 0.2.0-rc1...
[INFO] documenting mechtron-common-0.2.0-rc1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate mechtron-common 0.2.0-rc1 into /workspace/builds/worker-31/source
[INFO] validating manifest of crates.io crate mechtron-common 0.2.0-rc1 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 mechtron-common 0.2.0-rc1
[INFO] finished tweaking crates.io crate mechtron-common 0.2.0-rc1
[INFO] tweaked toml for crates.io crate mechtron-common 0.2.0-rc1 written to /workspace/builds/worker-31/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-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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] f62b232aaca37c1c3a299b8d1b4a0cc987b97ecea110653ac7d5f1f2dbfc5c7d
[INFO] running `Command { std: "docker" "start" "-a" "f62b232aaca37c1c3a299b8d1b4a0cc987b97ecea110653ac7d5f1f2dbfc5c7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f62b232aaca37c1c3a299b8d1b4a0cc987b97ecea110653ac7d5f1f2dbfc5c7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f62b232aaca37c1c3a299b8d1b4a0cc987b97ecea110653ac7d5f1f2dbfc5c7d", kill_on_drop: false }`
[INFO] [stdout] f62b232aaca37c1c3a299b8d1b4a0cc987b97ecea110653ac7d5f1f2dbfc5c7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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] 6ed189f877431fc17271872eaadee9e744536b2d25e41da2acc179385106137b
[INFO] running `Command { std: "docker" "start" "-a" "6ed189f877431fc17271872eaadee9e744536b2d25e41da2acc179385106137b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking indent_write v2.2.0
[INFO] [stderr]     Checking joinery v2.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking strum v0.21.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking brownstone v1.1.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking semver-parser v0.10.2
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking nom-supreme v0.6.0
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking mesh-portal-versions v0.2.0-rc1
[INFO] [stderr]     Checking mesh-portal v0.2.0-rc1
[INFO] [stderr]  Documenting mechtron-common v0.2.0-rc1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.04s
[INFO] running `Command { std: "docker" "inspect" "6ed189f877431fc17271872eaadee9e744536b2d25e41da2acc179385106137b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ed189f877431fc17271872eaadee9e744536b2d25e41da2acc179385106137b", kill_on_drop: false }`
[INFO] [stdout] 6ed189f877431fc17271872eaadee9e744536b2d25e41da2acc179385106137b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=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] 547bcee272eef5dc5252735e4b2a2109bea94b8f1b8caf704475931847085259
[INFO] running `Command { std: "docker" "start" "-a" "547bcee272eef5dc5252735e4b2a2109bea94b8f1b8caf704475931847085259", 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] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking indent_write v2.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking joinery v2.1.0
[INFO] [stderr]     Checking strum v0.21.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking brownstone v1.1.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking semver-parser v0.10.2
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking nom-supreme v0.6.0
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking mesh-portal-versions v0.2.0-rc1
[INFO] [stderr]     Checking mesh-portal v0.2.0-rc1
[INFO] [stderr]  Documenting mechtron-common v0.2.0-rc1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.82s
[INFO] running `Command { std: "docker" "inspect" "547bcee272eef5dc5252735e4b2a2109bea94b8f1b8caf704475931847085259", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "547bcee272eef5dc5252735e4b2a2109bea94b8f1b8caf704475931847085259", kill_on_drop: false }`
[INFO] [stdout] 547bcee272eef5dc5252735e4b2a2109bea94b8f1b8caf704475931847085259