[INFO] fetching crate linfb 0.2.1...
[INFO] documenting linfb-0.2.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate linfb 0.2.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate linfb 0.2.1 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate linfb 0.2.1
[INFO] finished tweaking crates.io crate linfb 0.2.1
[INFO] tweaked toml for crates.io crate linfb 0.2.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate linfb 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded font-loader v0.8.0
[INFO] [stderr]   Downloaded core-text v10.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 159e2a435c54e184b5a6c6460eeec779f2a4d690e4858339c182275cc261d468
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "159e2a435c54e184b5a6c6460eeec779f2a4d690e4858339c182275cc261d468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "159e2a435c54e184b5a6c6460eeec779f2a4d690e4858339c182275cc261d468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "159e2a435c54e184b5a6c6460eeec779f2a4d690e4858339c182275cc261d468", kill_on_drop: false }`
[INFO] [stdout] 159e2a435c54e184b5a6c6460eeec779f2a4d690e4858339c182275cc261d468
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15fd35c0a2d3db84e0618ae5c42a22c77d6be1ba1e5a38c414d314641335ab82
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "15fd35c0a2d3db84e0618ae5c42a22c77d6be1ba1e5a38c414d314641335ab82", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]     Checking downcast-rs v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking stb_truetype v0.3.0
[INFO] [stderr]     Checking png v0.15.0
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.7
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking rusttype v0.8.1
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking servo-fontconfig v0.4.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking nix v0.15.0
[INFO] [stderr]     Checking rayon-core v1.6.0
[INFO] [stderr]     Checking font-loader v0.8.0
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.16
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]    Compiling derive_builder_core v0.5.0
[INFO] [stderr]     Checking image v0.22.3
[INFO] [stderr]  Documenting linfb v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.96s
[INFO] running `Command { std: "docker" "inspect" "15fd35c0a2d3db84e0618ae5c42a22c77d6be1ba1e5a38c414d314641335ab82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15fd35c0a2d3db84e0618ae5c42a22c77d6be1ba1e5a38c414d314641335ab82", kill_on_drop: false }`
[INFO] [stdout] 15fd35c0a2d3db84e0618ae5c42a22c77d6be1ba1e5a38c414d314641335ab82