[INFO] fetching crate unmp-cloud 0.0.1...
[INFO] documenting unmp-cloud-0.0.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate unmp-cloud 0.0.1 into /workspace/builds/worker-33/source
[INFO] validating manifest of crates.io crate unmp-cloud 0.0.1 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 unmp-cloud 0.0.1
[INFO] finished tweaking crates.io crate unmp-cloud 0.0.1
[INFO] tweaked toml for crates.io crate unmp-cloud 0.0.1 written to /workspace/builds/worker-33/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unmp-protocol-etp v0.3.5
[INFO] [stderr]   Downloaded unmp-id v1.4.0
[INFO] [stderr]   Downloaded unmp v0.4.5
[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] 8cce5119e1e94cd5bd54d83e80a488a71128fe7ca2c1edf8eebb4c70dac1b81f
[INFO] running `Command { std: "docker" "start" "-a" "8cce5119e1e94cd5bd54d83e80a488a71128fe7ca2c1edf8eebb4c70dac1b81f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cce5119e1e94cd5bd54d83e80a488a71128fe7ca2c1edf8eebb4c70dac1b81f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cce5119e1e94cd5bd54d83e80a488a71128fe7ca2c1edf8eebb4c70dac1b81f", kill_on_drop: false }`
[INFO] [stdout] 8cce5119e1e94cd5bd54d83e80a488a71128fe7ca2c1edf8eebb4c70dac1b81f
[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] 0da1b258f9de2875235e222d63536c3d2c9130165486db8b2f1f0d936e004764
[INFO] running `Command { std: "docker" "start" "-a" "0da1b258f9de2875235e222d63536c3d2c9130165486db8b2f1f0d936e004764", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking spin_loop v0.1.1
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling crc16 v0.4.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking async-task v4.2.0
[INFO] [stderr]     Checking fixed-queue v0.3.11
[INFO] [stderr]     Checking unmp-id v1.4.0
[INFO] [stderr]    Compiling atomic v0.5.1
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]     Checking spin v0.9.3
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking ach-util v0.1.15
[INFO] [stderr]     Checking ach-ring v0.1.9
[INFO] [stderr]     Checking ach-mpmc v0.1.4
[INFO] [stderr]     Checking task-stream v0.3.6
[INFO] [stderr]     Checking unmp v0.4.5
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/unmp-0.4.5/src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(const_btree_new)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/unmp-0.4.5/src/net/history.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn add(&self, packet: &Packet) -> bool {
[INFO] [stdout]    |                                           ---- expected `bool` because of return type
[INFO] [stdout] 39 |         let new_log = Log::new(packet);
[INFO] [stdout] 40 |         self.inner.insert(new_log)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `unmp` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "0da1b258f9de2875235e222d63536c3d2c9130165486db8b2f1f0d936e004764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0da1b258f9de2875235e222d63536c3d2c9130165486db8b2f1f0d936e004764", kill_on_drop: false }`
[INFO] [stdout] 0da1b258f9de2875235e222d63536c3d2c9130165486db8b2f1f0d936e004764