[INFO] crate xcb 0.7.8 is already in cache
[INFO] documenting xcb-0.7.8 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate xcb 0.7.8 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate xcb 0.7.8 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f33924062fe9d55b74572e6101a12de2a2e2f82eb938965619e1f930729413a0
[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" "f33924062fe9d55b74572e6101a12de2a2e2f82eb938965619e1f930729413a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f33924062fe9d55b74572e6101a12de2a2e2f82eb938965619e1f930729413a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f33924062fe9d55b74572e6101a12de2a2e2f82eb938965619e1f930729413a0", kill_on_drop: false }`
[INFO] [stdout] f33924062fe9d55b74572e6101a12de2a2e2f82eb938965619e1f930729413a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4a374b14bc67797185c7ee1fef92be40fe6127ce184bb2ed9fa9b260f0aa0cfe
[INFO] running `Command { std: "docker" "start" "-a" "4a374b14bc67797185c7ee1fef92be40fe6127ce184bb2ed9fa9b260f0aa0cfe", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking log v0.3.9
[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] [stdout] warning: `[i]` cannot be resolved, ignoring it.
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/xcb-cea0d9a03513c625/out/xproto.rs:9360:67
[INFO] [stdout]      |
[INFO] [stdout] 9360 | /// Draws `points_len`-1 lines between each pair of points (point[i], point[i+1])
[INFO] [stdout]      |                                                                   ^ cannot be resolved, ignoring
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]      = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[i]` cannot be resolved, ignoring it.
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/xcb-cea0d9a03513c625/out/xproto.rs:9410:67
[INFO] [stdout]      |
[INFO] [stdout] 9410 | /// Draws `points_len`-1 lines between each pair of points (point[i], point[i+1])
[INFO] [stdout]      |                                                                   ^ cannot be resolved, ignoring
[INFO] [stdout]      |
[INFO] [stdout]      = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[request_name]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/ffi/base.rs:274:29
[INFO] [stdout]     |
[INFO] [stdout] 274 |     /// from a call to xcb_[request_name]_checked().  This function will block
[INFO] [stdout]     |                             ^^^^^^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[i]` cannot be resolved, ignoring it.
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/xcb-cea0d9a03513c625/out/ffi/xproto.rs:4021:67
[INFO] [stdout]      |
[INFO] [stdout] 4021 | /// Draws `points_len`-1 lines between each pair of points (point[i], point[i+1])
[INFO] [stdout]      |                                                                   ^ cannot be resolved, ignoring
[INFO] [stdout]      |
[INFO] [stdout]      = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[i]` cannot be resolved, ignoring it.
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/xcb-cea0d9a03513c625/out/ffi/xproto.rs:7414:71
[INFO] [stdout]      |
[INFO] [stdout] 7414 |     /// Draws `points_len`-1 lines between each pair of points (point[i], point[i+1])
[INFO] [stdout]      |                                                                       ^ cannot be resolved, ignoring
[INFO] [stdout]      |
[INFO] [stdout]      = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[i]` cannot be resolved, ignoring it.
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/xcb-cea0d9a03513c625/out/ffi/xproto.rs:7432:71
[INFO] [stdout]      |
[INFO] [stdout] 7432 |     /// Draws `points_len`-1 lines between each pair of points (point[i], point[i+1])
[INFO] [stdout]      |                                                                       ^ cannot be resolved, ignoring
[INFO] [stdout]      |
[INFO] [stdout]      = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.71s
[INFO] running `Command { std: "docker" "inspect" "4a374b14bc67797185c7ee1fef92be40fe6127ce184bb2ed9fa9b260f0aa0cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a374b14bc67797185c7ee1fef92be40fe6127ce184bb2ed9fa9b260f0aa0cfe", kill_on_drop: false }`
[INFO] [stdout] 4a374b14bc67797185c7ee1fef92be40fe6127ce184bb2ed9fa9b260f0aa0cfe