[INFO] fetching crate xcb 0.7.8...
[INFO] documenting xcb-0.7.8 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate xcb 0.7.8 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate xcb 0.7.8 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xcb 0.7.8
[INFO] finished tweaking crates.io crate xcb 0.7.8
[INFO] tweaked toml for crates.io crate xcb 0.7.8 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0bb1c487c091b1c039e26b58f13b239805ef51ebe545733e35d60ffcf922f7ae
[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" "0bb1c487c091b1c039e26b58f13b239805ef51ebe545733e35d60ffcf922f7ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bb1c487c091b1c039e26b58f13b239805ef51ebe545733e35d60ffcf922f7ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bb1c487c091b1c039e26b58f13b239805ef51ebe545733e35d60ffcf922f7ae", kill_on_drop: false }`
[INFO] [stdout] 0bb1c487c091b1c039e26b58f13b239805ef51ebe545733e35d60ffcf922f7ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd83c2f23154f2bc521a9844c9af7b11d9ebf92ac5acb62a959e484ca9a65ca3
[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" "cd83c2f23154f2bc521a9844c9af7b11d9ebf92ac5acb62a959e484ca9a65ca3", kill_on_drop: false }`
[INFO] [stderr]    Compiling xcb v0.7.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> build.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     if try!(fs::metadata(xml_dir)).is_dir() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> build.rs:16:22
[INFO] [stdout]    |
[INFO] [stdout] 16 |         for entry in try!(fs::read_dir(xml_dir)) {
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> build.rs:17:24
[INFO] [stdout]    |
[INFO] [stdout] 17 |             let path = try!(entry).path();
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> build.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |             if try!(fs::metadata(&path)).is_file() {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> build.rs:20:39
[INFO] [stdout]    |
[INFO] [stdout] 20 |                     if ext == "xml" { try!(cb(&path)); }
[INFO] [stdout]    |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> build.rs:60:30
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let xml_file_mtime = try!(fs::metadata(&xml_file)).mtime();
[INFO] [stdout]    |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> build.rs:68:26
[INFO] [stdout]    |
[INFO] [stdout] 68 |             let status = try!(Command::new("python3")
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting xcb v0.7.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.00s
[INFO] running `Command { std: "docker" "inspect" "cd83c2f23154f2bc521a9844c9af7b11d9ebf92ac5acb62a959e484ca9a65ca3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd83c2f23154f2bc521a9844c9af7b11d9ebf92ac5acb62a959e484ca9a65ca3", kill_on_drop: false }`
[INFO] [stdout] cd83c2f23154f2bc521a9844c9af7b11d9ebf92ac5acb62a959e484ca9a65ca3