[INFO] crate stm32f042 0.6.3 is already in cache
[INFO] documenting stm32f042-0.6.3 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate stm32f042 0.6.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate stm32f042 0.6.3 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/.cargo/config
[INFO] started tweaking crates.io crate stm32f042 0.6.3
[INFO] finished tweaking crates.io crate stm32f042 0.6.3
[INFO] tweaked toml for crates.io crate stm32f042 0.6.3 written to /workspace/builds/worker-1/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-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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7d68b4a90c214eb7901c58ce3787d31c6bdc5a03bfc913fe7d9d737438b3482
[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" "d7d68b4a90c214eb7901c58ce3787d31c6bdc5a03bfc913fe7d9d737438b3482", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7d68b4a90c214eb7901c58ce3787d31c6bdc5a03bfc913fe7d9d737438b3482", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7d68b4a90c214eb7901c58ce3787d31c6bdc5a03bfc913fe7d9d737438b3482", kill_on_drop: false }`
[INFO] [stdout] d7d68b4a90c214eb7901c58ce3787d31c6bdc5a03bfc913fe7d9d737438b3482
[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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4fdd955588473552575b1ad381a8781f27e41e39bb4940be7eb16bb75878ffe
[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" "b4fdd955588473552575b1ad381a8781f27e41e39bb4940be7eb16bb75878ffe", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling cortex-m v0.5.10
[INFO] [stderr]    Compiling cortex-m-rt v0.6.12
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]    Compiling stm32f042 v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking panic-abort v0.3.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking as-slice v0.1.3
[INFO] [stderr]     Checking aligned v0.3.2
[INFO] [stderr]     Checking cortex-m v0.6.2
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]  Documenting stm32f042 v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr] error: Could not document `stm32f042`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name stm32f042 src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="cortex-m-rt"' --cfg 'feature="default"' --cfg 'feature="rt"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bare_metal=/opt/rustwide/target/debug/deps/libbare_metal-a88238041f44df14.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-49b9896f3fc99198.rmeta --extern cortex_m_rt=/opt/rustwide/target/debug/deps/libcortex_m_rt-dd36aa7eaf162639.rmeta --extern panic_abort=/opt/rustwide/target/debug/deps/libpanic_abort-e69de9852c567acb.rmeta --extern vcell=/opt/rustwide/target/debug/deps/libvcell-a257a25e9078a27d.rmeta --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "b4fdd955588473552575b1ad381a8781f27e41e39bb4940be7eb16bb75878ffe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4fdd955588473552575b1ad381a8781f27e41e39bb4940be7eb16bb75878ffe", kill_on_drop: false }`
[INFO] [stdout] b4fdd955588473552575b1ad381a8781f27e41e39bb4940be7eb16bb75878ffe