[INFO] fetching crate runtime-fmt 0.4.1... [INFO] documenting runtime-fmt-0.4.1 against 1.61.0 for beta-1.62-rustdoc-1 [INFO] extracting crate runtime-fmt 0.4.1 into /workspace/builds/worker-33/source [INFO] validating manifest of crates.io crate runtime-fmt 0.4.1 on toolchain 1.61.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate runtime-fmt 0.4.1 [INFO] finished tweaking crates.io crate runtime-fmt 0.4.1 [INFO] tweaked toml for crates.io crate runtime-fmt 0.4.1 written to /workspace/builds/worker-33/source/Cargo.toml [INFO] crate crates.io crate runtime-fmt 0.4.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded runtime-fmt-derive v0.2.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 31556f326f1a182fd20b6f7f72f78f2ceabb6352f867c0fd6fe30edddca081b5 [INFO] running `Command { std: "docker" "start" "-a" "31556f326f1a182fd20b6f7f72f78f2ceabb6352f867c0fd6fe30edddca081b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "31556f326f1a182fd20b6f7f72f78f2ceabb6352f867c0fd6fe30edddca081b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "31556f326f1a182fd20b6f7f72f78f2ceabb6352f867c0fd6fe30edddca081b5", kill_on_drop: false }` [INFO] [stdout] 31556f326f1a182fd20b6f7f72f78f2ceabb6352f867c0fd6fe30edddca081b5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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=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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 350a30ea6aeee23607560b545d913a6a6b7e5dbc313e59d69ff0779142fbb492 [INFO] running `Command { std: "docker" "start" "-a" "350a30ea6aeee23607560b545d913a6a6b7e5dbc313e59d69ff0779142fbb492", kill_on_drop: false }` [INFO] [stderr] Checking unicode-xid v0.2.0 [INFO] [stderr] Documenting runtime-fmt v0.4.1 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:17:1 [INFO] [stdout] | [INFO] [stdout] 17 | #![feature(fmt_internals)] [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:18:1 [INFO] [stdout] | [INFO] [stdout] 18 | #![feature(unicode_internals)] [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:19:1 [INFO] [stdout] | [INFO] [stdout] 19 | #![feature(specialization)] [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:20:1 [INFO] [stdout] | [INFO] [stdout] 20 | #![feature(print_internals)] [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:21:1 [INFO] [stdout] | [INFO] [stdout] 21 | #![feature(rustc_private)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 19 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: Compilation failed, aborting rustdoc [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 6 previous errors; 1 warning 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 `runtime-fmt` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustdoc --crate-type lib --crate-name runtime_fmt src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=bdba37186463ea2e -L dependency=/opt/rustwide/target/debug/deps --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-e6a7651167715fa7.rmeta --cap-lints=warn --crate-version 0.4.1` (exit status: 1) [INFO] running `Command { std: "docker" "inspect" "350a30ea6aeee23607560b545d913a6a6b7e5dbc313e59d69ff0779142fbb492", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "350a30ea6aeee23607560b545d913a6a6b7e5dbc313e59d69ff0779142fbb492", kill_on_drop: false }` [INFO] [stdout] 350a30ea6aeee23607560b545d913a6a6b7e5dbc313e59d69ff0779142fbb492