[INFO] fetching crate varcon 0.6.1...
[INFO] documenting varcon-0.6.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate varcon 0.6.1 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate varcon 0.6.1 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 varcon 0.6.1
[INFO] finished tweaking crates.io crate varcon 0.6.1
[INFO] tweaked toml for crates.io crate varcon 0.6.1 written to /workspace/builds/worker-26/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] daaed869dd13ba9fbb417d6e8e77d19347f5df3f57d88c9951cb823a0f1b50de
[INFO] running `Command { std: "docker" "start" "-a" "daaed869dd13ba9fbb417d6e8e77d19347f5df3f57d88c9951cb823a0f1b50de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "daaed869dd13ba9fbb417d6e8e77d19347f5df3f57d88c9951cb823a0f1b50de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daaed869dd13ba9fbb417d6e8e77d19347f5df3f57d88c9951cb823a0f1b50de", kill_on_drop: false }`
[INFO] [stdout] daaed869dd13ba9fbb417d6e8e77d19347f5df3f57d88c9951cb823a0f1b50de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] 7c1dd33c852adafd3fdbc97960c0ce70efd6bb1c8259a70f84e97d1e833dfbac
[INFO] running `Command { std: "docker" "start" "-a" "7c1dd33c852adafd3fdbc97960c0ce70efd6bb1c8259a70f84e97d1e833dfbac", 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 quote v1.0.18
[INFO] [stderr]    Compiling enumflags2_derive v0.7.4
[INFO] [stderr]     Checking enumflags2 v0.7.5
[INFO] [stderr]     Checking varcon-core v2.2.3
[INFO] [stderr]  Documenting varcon v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.94s
[INFO] running `Command { std: "docker" "inspect" "7c1dd33c852adafd3fdbc97960c0ce70efd6bb1c8259a70f84e97d1e833dfbac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c1dd33c852adafd3fdbc97960c0ce70efd6bb1c8259a70f84e97d1e833dfbac", kill_on_drop: false }`
[INFO] [stdout] 7c1dd33c852adafd3fdbc97960c0ce70efd6bb1c8259a70f84e97d1e833dfbac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] 441e1fc56767a02e57bdb6b3944e390781b627b0c624b0a93ec77d10f024969e
[INFO] running `Command { std: "docker" "start" "-a" "441e1fc56767a02e57bdb6b3944e390781b627b0c624b0a93ec77d10f024969e", 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 syn v1.0.95
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling enumflags2_derive v0.7.4
[INFO] [stderr]     Checking enumflags2 v0.7.5
[INFO] [stderr]     Checking varcon-core v2.2.3
[INFO] [stderr]  Documenting varcon v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.84s
[INFO] running `Command { std: "docker" "inspect" "441e1fc56767a02e57bdb6b3944e390781b627b0c624b0a93ec77d10f024969e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "441e1fc56767a02e57bdb6b3944e390781b627b0c624b0a93ec77d10f024969e", kill_on_drop: false }`
[INFO] [stdout] 441e1fc56767a02e57bdb6b3944e390781b627b0c624b0a93ec77d10f024969e