[INFO] fetching crate pngquant 3.0.0-beta.7...
[INFO] documenting pngquant-3.0.0-beta.7 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate pngquant 3.0.0-beta.7 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate pngquant 3.0.0-beta.7 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 pngquant 3.0.0-beta.7
[INFO] finished tweaking crates.io crate pngquant 3.0.0-beta.7
[INFO] tweaked toml for crates.io crate pngquant 3.0.0-beta.7 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate crates.io crate pngquant 3.0.0-beta.7 already has a lockfile, it will not be regenerated
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] d0a641be9ebeacaa8ef94e82cdb6abe52a67c79db39067d6391dad5a9bf9ae58
[INFO] running `Command { std: "docker" "start" "-a" "d0a641be9ebeacaa8ef94e82cdb6abe52a67c79db39067d6391dad5a9bf9ae58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0a641be9ebeacaa8ef94e82cdb6abe52a67c79db39067d6391dad5a9bf9ae58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0a641be9ebeacaa8ef94e82cdb6abe52a67c79db39067d6391dad5a9bf9ae58", kill_on_drop: false }`
[INFO] [stdout] d0a641be9ebeacaa8ef94e82cdb6abe52a67c79db39067d6391dad5a9bf9ae58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 0b9d24c92abd4fa9ff6e438aa93c17be061bc619bfb4df44bb369706d24c0724
[INFO] running `Command { std: "docker" "start" "-a" "0b9d24c92abd4fa9ff6e438aa93c17be061bc619bfb4df44bb369706d24c0724", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling crossbeam-utils v0.8.6
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling dunce v1.0.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.6
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling imagequant-sys v4.0.0-beta.8
[INFO] [stderr]     Checking bytemuck v1.7.3
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking wild v2.0.4
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking rgb v0.8.31
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking noisy_float v0.2.0
[INFO] [stderr]     Checking fallible_collections v0.4.4
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling libpng-sys v1.1.8
[INFO] [stderr]    Compiling lcms2-sys v3.1.9
[INFO] [stderr]    Compiling pngquant v3.0.0-beta.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking imagequant v4.0.0-beta.7
[INFO] [stderr]  Documenting pngquant v3.0.0-beta.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.01s
[INFO] running `Command { std: "docker" "inspect" "0b9d24c92abd4fa9ff6e438aa93c17be061bc619bfb4df44bb369706d24c0724", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b9d24c92abd4fa9ff6e438aa93c17be061bc619bfb4df44bb369706d24c0724", kill_on_drop: false }`
[INFO] [stdout] 0b9d24c92abd4fa9ff6e438aa93c17be061bc619bfb4df44bb369706d24c0724