[INFO] fetching crate expire_map 0.0.34...
[INFO] documenting expire_map-0.0.34 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate expire_map 0.0.34 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate expire_map 0.0.34 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 expire_map 0.0.34
[INFO] finished tweaking crates.io crate expire_map 0.0.34
[INFO] tweaked toml for crates.io crate expire_map 0.0.34 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate expire_map 0.0.34 already has a lockfile, it will not be regenerated
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded polling v2.2.0
[INFO] [stderr]   Downloaded gloo-timers v0.2.4
[INFO] [stderr]   Downloaded async-process v1.4.0
[INFO] [stderr]   Downloaded blocking v1.2.0
[INFO] [stderr]   Downloaded async-lock v2.5.0
[INFO] [stderr]   Downloaded async-io v1.7.0
[INFO] [stderr]   Downloaded async-global-executor v2.2.0
[INFO] [stderr]   Downloaded array-macro v2.1.5
[INFO] [stderr]   Downloaded dashmap v5.3.4
[INFO] [stderr]   Downloaded ctor v0.1.22
[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] 9abdc97191917da2bb0eecdb8ad70d8e031976c916a23a9f0f96a4b3231a2c49
[INFO] running `Command { std: "docker" "start" "-a" "9abdc97191917da2bb0eecdb8ad70d8e031976c916a23a9f0f96a4b3231a2c49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9abdc97191917da2bb0eecdb8ad70d8e031976c916a23a9f0f96a4b3231a2c49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9abdc97191917da2bb0eecdb8ad70d8e031976c916a23a9f0f96a4b3231a2c49", kill_on_drop: false }`
[INFO] [stdout] 9abdc97191917da2bb0eecdb8ad70d8e031976c916a23a9f0f96a4b3231a2c49
[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] db9173f20f06f8314faf2325db1f436fb3dfd51c1b75a701e357926d4dfd0152
[INFO] running `Command { std: "docker" "start" "-a" "db9173f20f06f8314faf2325db1f436fb3dfd51c1b75a701e357926d4dfd0152", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking array-macro v2.1.5
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]     Checking dashmap v5.3.4
[INFO] [stderr]  Documenting expire_map v0.0.34 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(trait_alias)]
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `expire_map`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name expire_map src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="retry"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=31685c6a82db223f -L dependency=/opt/rustwide/target/debug/deps --extern array_macro=/opt/rustwide/target/debug/deps/libarray_macro-6c3b616a9689caea.rmeta --extern dashmap=/opt/rustwide/target/debug/deps/libdashmap-408470af863cf3bd.rmeta --cap-lints=warn --crate-version 0.0.34` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "db9173f20f06f8314faf2325db1f436fb3dfd51c1b75a701e357926d4dfd0152", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db9173f20f06f8314faf2325db1f436fb3dfd51c1b75a701e357926d4dfd0152", kill_on_drop: false }`
[INFO] [stdout] db9173f20f06f8314faf2325db1f436fb3dfd51c1b75a701e357926d4dfd0152
