[INFO] fetching crate metro_m4 0.11.1...
[INFO] documenting metro_m4-0.11.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate metro_m4 0.11.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate metro_m4 0.11.1 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] removed /workspace/builds/worker-14/source/.cargo/config
[INFO] started tweaking crates.io crate metro_m4 0.11.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate metro_m4 0.11.1
[INFO] tweaked toml for crates.io crate metro_m4 0.11.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate metro_m4 0.11.1 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 panic-rtt-target v0.1.2
[INFO] [stderr]   Downloaded panic-probe v0.3.0
[INFO] [stderr]   Downloaded rgb v0.8.32
[INFO] [stderr]   Downloaded ws2812-timer-delay v0.3.0
[INFO] [stderr]   Downloaded rtt-target v0.3.1
[INFO] [stderr]   Downloaded atsamd51j v0.12.0
[INFO] [stderr]   Downloaded ufmt-write v0.1.0
[INFO] [stderr]   Downloaded smart-leds v0.3.0
[INFO] [stderr]   Downloaded smart-leds-trait v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] ac8cf6e3a137c1223153d2d1f01916444909eccce8358c108d8b224e80bb23b1
[INFO] running `Command { std: "docker" "start" "-a" "ac8cf6e3a137c1223153d2d1f01916444909eccce8358c108d8b224e80bb23b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac8cf6e3a137c1223153d2d1f01916444909eccce8358c108d8b224e80bb23b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac8cf6e3a137c1223153d2d1f01916444909eccce8358c108d8b224e80bb23b1", kill_on_drop: false }`
[INFO] [stdout] ac8cf6e3a137c1223153d2d1f01916444909eccce8358c108d8b224e80bb23b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] a9367d1a53221aafd69e641749eab6b330dd56849ebe55be1ed7489e1fc8d8f9
[INFO] running `Command { std: "docker" "start" "-a" "a9367d1a53221aafd69e641749eab6b330dd56849ebe55be1ed7489e1fc8d8f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling cortex-m-rt v0.7.1
[INFO] [stderr]    Compiling cortex-m v0.7.4
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling atsamd51j v0.12.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling metro_m4 v0.11.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling seq-macro v0.3.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]    Compiling modular-bitfield-impl v0.11.2
[INFO] [stderr]     Checking modular-bitfield v0.11.2
[INFO] [stderr]     Checking atsamd-hal v0.15.1
[INFO] [stderr]  Documenting metro_m4 v0.11.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.00s
[INFO] running `Command { std: "docker" "inspect" "a9367d1a53221aafd69e641749eab6b330dd56849ebe55be1ed7489e1fc8d8f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9367d1a53221aafd69e641749eab6b330dd56849ebe55be1ed7489e1fc8d8f9", kill_on_drop: false }`
[INFO] [stdout] a9367d1a53221aafd69e641749eab6b330dd56849ebe55be1ed7489e1fc8d8f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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] aaa2aeb396c57019f7181eaa3b2ab21514abb94eadf031bc6160ef3b4ca34be6
[INFO] running `Command { std: "docker" "start" "-a" "aaa2aeb396c57019f7181eaa3b2ab21514abb94eadf031bc6160ef3b4ca34be6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling cortex-m-rt v0.7.1
[INFO] [stderr]    Compiling cortex-m v0.7.4
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling atsamd51j v0.12.0
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]    Compiling seq-macro v0.3.0
[INFO] [stderr]    Compiling metro_m4 v0.11.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]    Compiling modular-bitfield-impl v0.11.2
[INFO] [stderr]     Checking modular-bitfield v0.11.2
[INFO] [stderr]     Checking atsamd-hal v0.15.1
[INFO] [stderr]  Documenting metro_m4 v0.11.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.28s
[INFO] running `Command { std: "docker" "inspect" "aaa2aeb396c57019f7181eaa3b2ab21514abb94eadf031bc6160ef3b4ca34be6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaa2aeb396c57019f7181eaa3b2ab21514abb94eadf031bc6160ef3b4ca34be6", kill_on_drop: false }`
[INFO] [stdout] aaa2aeb396c57019f7181eaa3b2ab21514abb94eadf031bc6160ef3b4ca34be6