[INFO] fetching crate web_logger 0.2.0...
[INFO] documenting web_logger-0.2.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate web_logger 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate web_logger 0.2.0 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 web_logger 0.2.0
[INFO] finished tweaking crates.io crate web_logger 0.2.0
[INFO] tweaked toml for crates.io crate web_logger 0.2.0 written to /workspace/builds/worker-7/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] de4ea8989fb0705e2e4eb999f8832f84fec52dd57e13b66fe9d3c1903f3f3cdd
[INFO] running `Command { std: "docker" "start" "-a" "de4ea8989fb0705e2e4eb999f8832f84fec52dd57e13b66fe9d3c1903f3f3cdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de4ea8989fb0705e2e4eb999f8832f84fec52dd57e13b66fe9d3c1903f3f3cdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de4ea8989fb0705e2e4eb999f8832f84fec52dd57e13b66fe9d3c1903f3f3cdd", kill_on_drop: false }`
[INFO] [stdout] de4ea8989fb0705e2e4eb999f8832f84fec52dd57e13b66fe9d3c1903f3f3cdd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a5b55a66593214244325c3e16d0545fa6fdaa01938433b555a096a9a7b62c79d
[INFO] running `Command { std: "docker" "start" "-a" "a5b55a66593214244325c3e16d0545fa6fdaa01938433b555a096a9a7b62c79d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling sha1_smol v1.0.0
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.5
[INFO] [stderr]    Compiling itoa v1.0.2
[INFO] [stderr]    Compiling ryu v1.0.10
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling base-x v0.2.10
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking discard v1.0.4
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]    Compiling stdweb v0.4.20
[INFO] [stderr]    Compiling sha1 v0.6.1
[INFO] [stderr]    Compiling stdweb-derive v0.5.3
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.9
[INFO] [stderr]  Documenting web_logger v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `Command { std: "docker" "inspect" "a5b55a66593214244325c3e16d0545fa6fdaa01938433b555a096a9a7b62c79d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5b55a66593214244325c3e16d0545fa6fdaa01938433b555a096a9a7b62c79d", kill_on_drop: false }`
[INFO] [stdout] a5b55a66593214244325c3e16d0545fa6fdaa01938433b555a096a9a7b62c79d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f1148cbbfff7abad9d9442c07f78db1a6134e330842b2d983ed3644f65a6cdbc
[INFO] running `Command { std: "docker" "start" "-a" "f1148cbbfff7abad9d9442c07f78db1a6134e330842b2d983ed3644f65a6cdbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.137
[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 semver-parser v0.7.0
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling itoa v1.0.2
[INFO] [stderr]    Compiling sha1_smol v1.0.0
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.5
[INFO] [stderr]    Compiling ryu v1.0.10
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling base-x v0.2.10
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking discard v1.0.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling sha1 v0.6.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling stdweb v0.4.20
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling stdweb-derive v0.5.3
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.9
[INFO] [stderr]  Documenting web_logger v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 17s
[INFO] running `Command { std: "docker" "inspect" "f1148cbbfff7abad9d9442c07f78db1a6134e330842b2d983ed3644f65a6cdbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1148cbbfff7abad9d9442c07f78db1a6134e330842b2d983ed3644f65a6cdbc", kill_on_drop: false }`
[INFO] [stdout] f1148cbbfff7abad9d9442c07f78db1a6134e330842b2d983ed3644f65a6cdbc