[INFO] fetching crate mux-stream-macros 0.4.0...
[INFO] documenting mux-stream-macros-0.4.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate mux-stream-macros 0.4.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate mux-stream-macros 0.4.0 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 mux-stream-macros 0.4.0
[INFO] finished tweaking crates.io crate mux-stream-macros 0.4.0
[INFO] tweaked toml for crates.io crate mux-stream-macros 0.4.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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" "+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 toml v0.5.9
[INFO] [stderr]   Downloaded slab v0.4.6
[INFO] [stderr]   Downloaded futures v0.3.21
[INFO] [stderr]   Downloaded glob v0.3.0
[INFO] [stderr]   Downloaded trybuild v1.0.61
[INFO] [stderr]   Downloaded futures-macro v0.3.21
[INFO] [stderr]   Downloaded futures-executor v0.3.21
[INFO] [stderr]   Downloaded futures-io v0.3.21
[INFO] [stderr]   Downloaded num_cpus v1.13.1
[INFO] [stderr]   Downloaded tokio-macros v1.7.0
[INFO] [stderr]   Downloaded futures-util v0.3.21
[INFO] [stderr]   Downloaded tokio-stream v0.1.8
[INFO] [stderr]   Downloaded futures-channel v0.3.21
[INFO] [stderr]   Downloaded futures-task v0.3.21
[INFO] [stderr]   Downloaded once_cell v1.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 7aad1ca43d479729f9ebc636d68cbaa0c9e4f9f711f46dd6ae47587ce2d6e8e4
[INFO] running `Command { std: "docker" "start" "-a" "7aad1ca43d479729f9ebc636d68cbaa0c9e4f9f711f46dd6ae47587ce2d6e8e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7aad1ca43d479729f9ebc636d68cbaa0c9e4f9f711f46dd6ae47587ce2d6e8e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aad1ca43d479729f9ebc636d68cbaa0c9e4f9f711f46dd6ae47587ce2d6e8e4", kill_on_drop: false }`
[INFO] [stdout] 7aad1ca43d479729f9ebc636d68cbaa0c9e4f9f711f46dd6ae47587ce2d6e8e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 92f67838b1aca474ee5250492bba5d24616da7cc21df84251d04b6575cdae45c
[INFO] running `Command { std: "docker" "start" "-a" "92f67838b1aca474ee5250492bba5d24616da7cc21df84251d04b6575cdae45c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]     Checking unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]  Documenting mux-stream-macros v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.73s
[INFO] running `Command { std: "docker" "inspect" "92f67838b1aca474ee5250492bba5d24616da7cc21df84251d04b6575cdae45c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92f67838b1aca474ee5250492bba5d24616da7cc21df84251d04b6575cdae45c", kill_on_drop: false }`
[INFO] [stdout] 92f67838b1aca474ee5250492bba5d24616da7cc21df84251d04b6575cdae45c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 8ba7c2bb1b84c5c67edb0da9cc01447487bed44a1362a2c849a547bb596d3cb8
[INFO] running `Command { std: "docker" "start" "-a" "8ba7c2bb1b84c5c67edb0da9cc01447487bed44a1362a2c849a547bb596d3cb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]     Checking unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]  Documenting mux-stream-macros v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.42s
[INFO] running `Command { std: "docker" "inspect" "8ba7c2bb1b84c5c67edb0da9cc01447487bed44a1362a2c849a547bb596d3cb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ba7c2bb1b84c5c67edb0da9cc01447487bed44a1362a2c849a547bb596d3cb8", kill_on_drop: false }`
[INFO] [stdout] 8ba7c2bb1b84c5c67edb0da9cc01447487bed44a1362a2c849a547bb596d3cb8