[INFO] fetching crate deferred-reference 0.1.2...
[INFO] documenting deferred-reference-0.1.2 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate deferred-reference 0.1.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate deferred-reference 0.1.2 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate deferred-reference 0.1.2
[INFO] finished tweaking crates.io crate deferred-reference 0.1.2
[INFO] tweaked toml for crates.io crate deferred-reference 0.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29d11e8d62500dc02f142f8679543b7c92a8a9ac7788594f228e308f66f71900
[INFO] running `Command { std: "docker" "start" "-a" "29d11e8d62500dc02f142f8679543b7c92a8a9ac7788594f228e308f66f71900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29d11e8d62500dc02f142f8679543b7c92a8a9ac7788594f228e308f66f71900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29d11e8d62500dc02f142f8679543b7c92a8a9ac7788594f228e308f66f71900", kill_on_drop: false }`
[INFO] [stdout] 29d11e8d62500dc02f142f8679543b7c92a8a9ac7788594f228e308f66f71900
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d27728e5a91607500c531ca2e04705e5ec63a9c9c2e7641464e08ddff32b66a6
[INFO] running `Command { std: "docker" "start" "-a" "d27728e5a91607500c531ca2e04705e5ec63a9c9c2e7641464e08ddff32b66a6", kill_on_drop: false }`
[INFO] [stderr]  Documenting deferred-reference v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:122:48
[INFO] [stdout]     |
[INFO] [stdout] 122 | #![cfg_attr(feature = "slice_ptr_len", feature(slice_ptr_len))]
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:126:49
[INFO] [stdout]     |
[INFO] [stdout] 126 | #![cfg_attr(feature = "coerce_unsized", feature(coerce_unsized))]
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `defer_mut`
[INFO] [stdout]    --> src/defer.rs:167:84
[INFO] [stdout]     |
[INFO] [stdout] 167 | /// then you may do so using the unsafe [`defer!`](macro@defer) and [`defer_mut!`](macro@defer_mut) macros.
[INFO] [stdout]     |                                                                                    ^^^^^^^^^^^^^^^ no item named `defer_mut` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = note: `macro_rules` named `defer_mut` exists in this crate, but it is not in scope at this link's location
[INFO] [stdout]     = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `defer`
[INFO] [stdout]   --> src/deferred.rs:60:49
[INFO] [stdout]    |
[INFO] [stdout] 60 | /// 5. Through the _extremely unsafe_ [`defer`](macro@defer) macro (not recommended).
[INFO] [stdout]    |                                                 ^^^^^^^^^^^ no item named `defer` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = note: `macro_rules` named `defer` exists in this crate, but it is not in scope at this link's location
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `defer_mut`
[INFO] [stdout]    --> src/deferred.rs:140:53
[INFO] [stdout]     |
[INFO] [stdout] 140 | /// 5. Through the _extremely unsafe_ [`defer_mut`](macro@defer_mut) macro (not recommended).
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^ no item named `defer_mut` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = note: `macro_rules` named `defer_mut` exists in this crate, but it is not in scope at this link's location
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `defer`
[INFO] [stdout]   --> src/defer_mut.rs:65:89
[INFO] [stdout]    |
[INFO] [stdout] 65 | /// However, this can get very complicated and very unsafe real fast, see the [`defer`](macro@defer#caveat)
[INFO] [stdout]    |                                                                                         ^^^^^^^^^^^^^^^^^^ no item named `defer` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = note: `macro_rules` named `defer` exists in this crate, but it is not in scope at this link's location
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `defer`
[INFO] [stdout]   --> src/defer_mut.rs:70:71
[INFO] [stdout]    |
[INFO] [stdout] 70 | /// which are not re-borrowed, even the ones created by the [`defer`](macro@defer) macro (`Deferred<&T>` instances returned by the
[INFO] [stdout]    |                                                                       ^^^^^^^^^^^ no item named `defer` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = note: `macro_rules` named `defer` exists in this crate, but it is not in scope at this link's location
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `defer_mut`
[INFO] [stdout]   --> src/defer_mut.rs:72:37
[INFO] [stdout]    |
[INFO] [stdout] 72 | /// together with the [`defer_mut`](macro@defer_mut) macro if you take special care to always call [`defer!`](macro@defer) again to refresh
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^ no item named `defer_mut` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = note: `macro_rules` named `defer_mut` exists in this crate, but it is not in scope at this link's location
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `deferred-reference`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name deferred_reference src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="coerce_unsized"' --cfg 'feature="default"' --cfg 'feature="slice_ptr_len"' --cfg 'feature="unstable"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=0d099b6bbbaad7ca -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d27728e5a91607500c531ca2e04705e5ec63a9c9c2e7641464e08ddff32b66a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d27728e5a91607500c531ca2e04705e5ec63a9c9c2e7641464e08ddff32b66a6", kill_on_drop: false }`
[INFO] [stdout] d27728e5a91607500c531ca2e04705e5ec63a9c9c2e7641464e08ddff32b66a6
