[INFO] crate kas-gtk 0.0.2 is already in cache
[INFO] documenting kas-gtk-0.0.2 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate kas-gtk 0.0.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate kas-gtk 0.0.2 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kas-gtk 0.0.2
[INFO] finished tweaking crates.io crate kas-gtk 0.0.2
[INFO] tweaked toml for crates.io crate kas-gtk 0.0.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 707ec6c58f3c15ddd8a4395632c581adb9d3935983204799b05bf4f217f98c5f
[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" "707ec6c58f3c15ddd8a4395632c581adb9d3935983204799b05bf4f217f98c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "707ec6c58f3c15ddd8a4395632c581adb9d3935983204799b05bf4f217f98c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "707ec6c58f3c15ddd8a4395632c581adb9d3935983204799b05bf4f217f98c5f", kill_on_drop: false }`
[INFO] [stdout] 707ec6c58f3c15ddd8a4395632c581adb9d3935983204799b05bf4f217f98c5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47450e56a93d3847aaae50c25fc61f972933a62a7f0c4d38b150ff3bc9d7a0ee
[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" "47450e56a93d3847aaae50c25fc61f972933a62a7f0c4d38b150ff3bc9d7a0ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling gio v0.5.1
[INFO] [stderr]    Compiling gdk-pixbuf v0.5.0
[INFO] [stderr]    Compiling cairo-rs v0.5.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling gdk v0.9.0
[INFO] [stderr]    Compiling gtk v0.5.0
[INFO] [stderr]    Compiling glib-sys v0.7.0
[INFO] [stderr]    Compiling gobject-sys v0.7.0
[INFO] [stderr]    Compiling gio-sys v0.7.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.7.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.7.0
[INFO] [stderr]    Compiling pango-sys v0.7.0
[INFO] [stderr]    Compiling gdk-sys v0.7.0
[INFO] [stderr]    Compiling atk-sys v0.7.0
[INFO] [stderr]    Compiling gtk-sys v0.7.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking glib v0.6.1
[INFO] [stderr]     Checking pango v0.5.0
[INFO] [stderr]    Compiling kas-macros v0.0.2
[INFO] [stderr]     Checking kas v0.0.2
[INFO] [stderr]  Documenting kas-gtk v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `const_vec_new`
[INFO] [stdout]  --> src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(const_vec_new)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `kas-gtk`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name kas_gtk src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern gdk=/opt/rustwide/target/debug/deps/libgdk-a9b31a2cebefee89.rmeta --extern glib=/opt/rustwide/target/debug/deps/libglib-e6bc8385807bd252.rmeta --extern gtk=/opt/rustwide/target/debug/deps/libgtk-7a9f0f9d57b0b7a4.rmeta --extern gtk_sys=/opt/rustwide/target/debug/deps/libgtk_sys-ba624c6469addeaf.rmeta --extern kas=/opt/rustwide/target/debug/deps/libkas-e71090ddcc9c341b.rmeta --cap-lints=forbid` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "47450e56a93d3847aaae50c25fc61f972933a62a7f0c4d38b150ff3bc9d7a0ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47450e56a93d3847aaae50c25fc61f972933a62a7f0c4d38b150ff3bc9d7a0ee", kill_on_drop: false }`
[INFO] [stdout] 47450e56a93d3847aaae50c25fc61f972933a62a7f0c4d38b150ff3bc9d7a0ee