[INFO] fetching crate gdbstub 0.6.1...
[INFO] documenting gdbstub-0.6.1 against try#6fd27704e643b25711e6a97ec2b04873b411b97d for pr-96676
[INFO] extracting crate gdbstub 0.6.1 into /workspace/builds/worker-45/source
[INFO] validating manifest of crates.io crate gdbstub 0.6.1 on toolchain 6fd27704e643b25711e6a97ec2b04873b411b97d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gdbstub 0.6.1
[INFO] removed 2 missing examples
[INFO] finished tweaking crates.io crate gdbstub 0.6.1
[INFO] tweaked toml for crates.io crate gdbstub 0.6.1 written to /workspace/builds/worker-45/source/Cargo.toml
[INFO] crate crates.io crate gdbstub 0.6.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2979c130f80589d249751c1f57b5aadfbb247921b13872b7da19db045bb2b277
[INFO] running `Command { std: "docker" "start" "-a" "2979c130f80589d249751c1f57b5aadfbb247921b13872b7da19db045bb2b277", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2979c130f80589d249751c1f57b5aadfbb247921b13872b7da19db045bb2b277", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2979c130f80589d249751c1f57b5aadfbb247921b13872b7da19db045bb2b277", kill_on_drop: false }`
[INFO] [stdout] 2979c130f80589d249751c1f57b5aadfbb247921b13872b7da19db045bb2b277
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2439dfa7c0b5e0d468840c16fe600ea5db46940eae8241be280d336bacfce85
[INFO] running `Command { std: "docker" "start" "-a" "f2439dfa7c0b5e0d468840c16fe600ea5db46940eae8241be280d336bacfce85", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking managed v0.8.0
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]  Documenting gdbstub v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]  --> src/protocol/console_output.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | /// [`output!`] and [`outputln!`] macros.
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[deny(rustdoc::macro_rules_fallback)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]  --> src/protocol/console_output.rs:9:23
[INFO] [stdout]   |
[INFO] [stdout] 9 | /// [`output!`] and [`outputln!`] macros.
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `core::slice::split_mut`
[INFO] [stdout]  --> src/util/no_panic_iter.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 |     /// Variant of [`core::slice::split_mut`] that elides bound checks.
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^^^^^ no item named `split_mut` in module `slice`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `core::slice::splitn_mut`
[INFO] [stdout]  --> src/util/no_panic_iter.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 |     /// Variant of [`core::slice::splitn_mut`] that elides bound checks.
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^^^^^^ no item named `splitn_mut` in module `slice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `gdbstub`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name gdbstub src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="alloc"' --cfg 'feature="default"' --cfg 'feature="std"' --cfg 'feature="trace-pkt"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=1d3e9fa3535b80bb -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-f75283d3dcd3daad.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-88879d2dc0fa106c.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-bfec198e2ff177f1.rmeta --extern managed=/opt/rustwide/target/debug/deps/libmanaged-c3133302d5c8c64f.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-f1254da353db4fc3.rmeta --extern paste=/opt/rustwide/target/debug/deps/libpaste-4d6a3c29c1b84e5f.so --cap-lints=forbid --crate-version 0.6.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "f2439dfa7c0b5e0d468840c16fe600ea5db46940eae8241be280d336bacfce85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2439dfa7c0b5e0d468840c16fe600ea5db46940eae8241be280d336bacfce85", kill_on_drop: false }`
[INFO] [stdout] f2439dfa7c0b5e0d468840c16fe600ea5db46940eae8241be280d336bacfce85