[INFO] fetching crate barrel 0.7.0...
[INFO] documenting barrel-0.7.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate barrel 0.7.0 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate barrel 0.7.0 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate barrel 0.7.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate barrel 0.7.0
[INFO] tweaked toml for crates.io crate barrel 0.7.0 written to /workspace/builds/worker-49/source/Cargo.toml
[INFO] crate crates.io crate barrel 0.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_syscall v0.2.4
[INFO] [stderr]   Downloaded diesel_derives v1.4.1
[INFO] [stderr]   Downloaded getrandom v0.2.2
[INFO] [stderr]   Downloaded rand_core v0.6.1
[INFO] [stderr]   Downloaded libc v0.2.83
[INFO] [stderr]   Downloaded diesel v1.4.5
[INFO] [stderr]   Downloaded quote v1.0.8
[INFO] [stderr]   Downloaded syn v1.0.60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d845ca075ff8dfa36ee1079b251d7ed90a9e0dcdc63601a8c07516972331037
[INFO] running `Command { std: "docker" "start" "-a" "8d845ca075ff8dfa36ee1079b251d7ed90a9e0dcdc63601a8c07516972331037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d845ca075ff8dfa36ee1079b251d7ed90a9e0dcdc63601a8c07516972331037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d845ca075ff8dfa36ee1079b251d7ed90a9e0dcdc63601a8c07516972331037", kill_on_drop: false }`
[INFO] [stdout] 8d845ca075ff8dfa36ee1079b251d7ed90a9e0dcdc63601a8c07516972331037
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df9ffaecac8c9c74a948e07f9a081ed48a6db99913e6150bfda48f45902c50e7
[INFO] running `Command { std: "docker" "start" "-a" "df9ffaecac8c9c74a948e07f9a081ed48a6db99913e6150bfda48f45902c50e7", kill_on_drop: false }`
[INFO] [stderr]  Documenting barrel v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `Command { std: "docker" "inspect" "df9ffaecac8c9c74a948e07f9a081ed48a6db99913e6150bfda48f45902c50e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df9ffaecac8c9c74a948e07f9a081ed48a6db99913e6150bfda48f45902c50e7", kill_on_drop: false }`
[INFO] [stdout] df9ffaecac8c9c74a948e07f9a081ed48a6db99913e6150bfda48f45902c50e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--features" "mysql sqlite3 pg unstable" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 40a47f9258a65c970a47ab38770e7231b5d7d209b9f05731478c2ed5f8f890d5
[INFO] running `Command { std: "docker" "start" "-a" "40a47f9258a65c970a47ab38770e7231b5d7d209b9f05731478c2ed5f8f890d5", kill_on_drop: false }`
[INFO] [stderr]  Documenting barrel v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "40a47f9258a65c970a47ab38770e7231b5d7d209b9f05731478c2ed5f8f890d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40a47f9258a65c970a47ab38770e7231b5d7d209b9f05731478c2ed5f8f890d5", kill_on_drop: false }`
[INFO] [stdout] 40a47f9258a65c970a47ab38770e7231b5d7d209b9f05731478c2ed5f8f890d5