[INFO] fetching crate futures-udp 0.1.1...
[INFO] documenting futures-udp-0.1.1 against 1.99.0-beta.8 for beta-rustdoc-1.100
[INFO] extracting crate futures-udp 0.1.1 into /workspace/builds/worker-5-tc1/source
[INFO] removed /workspace/builds/worker-5-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate futures-udp 0.1.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate futures-udp 0.1.1
[INFO] tweaked toml for crates.io crate futures-udp 0.1.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate futures-udp 0.1.1 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate futures-udp 0.1.1 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-net v0.6.0
[INFO] [stderr]   Downloaded futures-net-macro v1.0.0
[INFO] [stderr]   Downloaded cache-padded v1.3.0
[INFO] [stderr]   Downloaded parking_lot_core v0.7.3
[INFO] [stderr]   Downloaded async-ready v3.0.0
[INFO] [stderr]   Downloaded async-datagram v3.0.0
[INFO] [stderr]   Downloaded parking_lot v0.10.2
[INFO] [stderr]   Downloaded build_safely v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d9f0f01d61d81a43b7b7e5789b0e52eee0a2f75ad628731523d1604755b3b13c
[INFO] running `Command { std: "docker" "start" "d9f0f01d61d81a43b7b7e5789b0e52eee0a2f75ad628731523d1604755b3b13c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9f0f01d61d81a43b7b7e5789b0e52eee0a2f75ad628731523d1604755b3b13c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d9f0f01d61d81a43b7b7e5789b0e52eee0a2f75ad628731523d1604755b3b13c" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9f0f01d61d81a43b7b7e5789b0e52eee0a2f75ad628731523d1604755b3b13c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d9f0f01d61d81a43b7b7e5789b0e52eee0a2f75ad628731523d1604755b3b13c" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-sink v0.3.32
[INFO] [stderr]     Checking futures-core v0.3.32
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]     Checking futures-task v0.3.32
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]    Compiling hashbrown v0.17.1
[INFO] [stderr]    Compiling anyhow v1.0.103
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking futures-io v0.3.32
[INFO] [stderr]     Checking cache-padded v1.3.0
[INFO] [stderr]     Checking async-ready v3.0.0
[INFO] [stderr]     Checking async-datagram v3.0.0
[INFO] [stderr]    Compiling syn v2.0.118
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking parking_lot_core v0.7.3
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking socket2 v0.6.4
[INFO] [stderr]     Checking futures-channel v0.3.32
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]    Compiling indexmap v2.14.0
[INFO] [stderr]     Checking futures-executor v0.3.32
[INFO] [stderr]     Checking futures v0.3.32
[INFO] [stderr]     Checking futures-net v0.6.0
[INFO] [stderr]    Compiling derive_more-impl v2.1.1
[INFO] [stderr]    Compiling derive_more v2.1.1
[INFO] [stderr]    Compiling build_safely v0.5.2
[INFO] [stderr]    Compiling futures-udp v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting futures-udp v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: the `!` type is experimental
[INFO] [stdout]    --> src/lib.rs:214:83
[INFO] [stdout]     |
[INFO] [stdout] 214 |     fn clear_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<!>>;
[INFO] [stdout]     |                                                                                   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: the `!` type is experimental
[INFO] [stdout]    --> src/lib.rs:231:27
[INFO] [stdout]     |
[INFO] [stdout] 231 |         error: io::Result<!>,
[INFO] [stdout]     |                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: the `!` type is experimental
[INFO] [stdout]    --> src/lib.rs:233:26
[INFO] [stdout]     |
[INFO] [stdout] 233 |     ) -> Poll<io::Result<!>> {
[INFO] [stdout]     |                          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: the `!` type is experimental
[INFO] [stdout]    --> src/lib.rs:263:83
[INFO] [stdout]     |
[INFO] [stdout] 263 |     fn clear_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<!>> {
[INFO] [stdout]     |                                                                                   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: the `!` type is experimental
[INFO] [stdout]    --> src/lib.rs:365:83
[INFO] [stdout]     |
[INFO] [stdout] 365 |     fn clear_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<!>> {
[INFO] [stdout]     |                                                                                   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `futures-udp`
[INFO] running `Command { std: "docker" "inspect" "d9f0f01d61d81a43b7b7e5789b0e52eee0a2f75ad628731523d1604755b3b13c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9f0f01d61d81a43b7b7e5789b0e52eee0a2f75ad628731523d1604755b3b13c", kill_on_drop: false }`
[INFO] [stdout] d9f0f01d61d81a43b7b7e5789b0e52eee0a2f75ad628731523d1604755b3b13c
