[INFO] fetching crate unmp-cloud 0.0.1...
[INFO] testing unmp-cloud-0.0.1 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate unmp-cloud 0.0.1 into /workspace/builds/worker-0-tc2/source
[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-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate unmp-cloud 0.0.1 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 54 packages to highest compatible versions
[INFO] [stderr]       Adding unmp-protocol-etp v0.3.5 (available: v0.7.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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] 70d04616694c32de531eeabd38775a1caefc35ebe5158cbc20b80f5febb84912
[INFO] running `Command { std: "docker" "start" "70d04616694c32de531eeabd38775a1caefc35ebe5158cbc20b80f5febb84912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70d04616694c32de531eeabd38775a1caefc35ebe5158cbc20b80f5febb84912", 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" "70d04616694c32de531eeabd38775a1caefc35ebe5158cbc20b80f5febb84912" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70d04616694c32de531eeabd38775a1caefc35ebe5158cbc20b80f5febb84912", 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" "70d04616694c32de531eeabd38775a1caefc35ebe5158cbc20b80f5febb84912" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling spin_loop v0.2.5
[INFO] [stderr]    Compiling crc16 v0.4.0
[INFO] [stderr]    Compiling async-task v4.7.1
[INFO] [stderr]    Compiling fixed-queue v0.3.11
[INFO] [stderr]    Compiling unmp-id v1.4.0
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling bytemuck_derive v1.12.1
[INFO] [stderr]    Compiling bytemuck v1.25.2
[INFO] [stderr]    Compiling atomic v0.6.1
[INFO] [stderr]    Compiling ach-util v0.2.5
[INFO] [stderr]    Compiling ach-ring v0.2.5
[INFO] [stderr]    Compiling ach-mpmc v0.2.5
[INFO] [stderr]    Compiling task-stream v0.3.8
[INFO] [stderr]    Compiling unmp v0.4.5
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/unmp-0.4.5/src/lib.rs:8:1
[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/index.crates.io-1949cf8c6b5b557f/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] note: method `insert` modifies its receiver in-place
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/unmp-0.4.5/src/net/history.rs:40:20
[INFO] [stdout]    |
[INFO] [stdout] 40 |         self.inner.insert(new_log)
[INFO] [stdout]    |                    ^^^^^^ this call modifies its receiver in-place
[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` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "70d04616694c32de531eeabd38775a1caefc35ebe5158cbc20b80f5febb84912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70d04616694c32de531eeabd38775a1caefc35ebe5158cbc20b80f5febb84912", kill_on_drop: false }`
[INFO] [stdout] 70d04616694c32de531eeabd38775a1caefc35ebe5158cbc20b80f5febb84912
