[INFO] fetching crate dan 0.1.1...
[INFO] testing dan-0.1.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate dan 0.1.1 into /workspace/builds/worker-1-tc1/source
[INFO] removed /workspace/builds/worker-1-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate dan 0.1.1
[INFO] finished tweaking crates.io crate dan 0.1.1
[INFO] tweaked toml for crates.io crate dan 0.1.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dan 0.1.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate dan 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded peg-runtime v0.8.0
[INFO] [stderr]   Downloaded peg v0.8.0
[INFO] [stderr]   Downloaded bytes v1.2.0
[INFO] [stderr]   Downloaded mqttrs v0.2.0
[INFO] [stderr]   Downloaded mqtt-async-client v0.3.1
[INFO] [stderr]   Downloaded either v1.7.0
[INFO] [stderr]   Downloaded async-trait v0.1.56
[INFO] [stderr]   Downloaded peg-macros v0.8.0
[INFO] [stderr]   Downloaded serde v1.0.140
[INFO] [stderr]   Downloaded serde_derive v1.0.140
[INFO] [stderr]   Downloaded tokio v1.20.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 655321135b02d56869db5b7952db21d2109cb6b50d0119843c972b9bc341ea6f
[INFO] running `Command { std: "docker" "start" "-a" "655321135b02d56869db5b7952db21d2109cb6b50d0119843c972b9bc341ea6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "655321135b02d56869db5b7952db21d2109cb6b50d0119843c972b9bc341ea6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "655321135b02d56869db5b7952db21d2109cb6b50d0119843c972b9bc341ea6f", kill_on_drop: false }`
[INFO] [stdout] 655321135b02d56869db5b7952db21d2109cb6b50d0119843c972b9bc341ea6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bcad36ac9f6e847b31a3702d48d30f7e705cbcca2a5ad0f028b65fd575793cf
[INFO] running `Command { std: "docker" "start" "-a" "0bcad36ac9f6e847b31a3702d48d30f7e705cbcca2a5ad0f028b65fd575793cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.9
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling async-task v4.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.140
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling tokio v1.20.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling serde v1.0.140
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling async-lock v2.5.0
[INFO] [stderr]    Compiling blocking v1.2.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling async-trait v0.1.56
[INFO] [stderr]    Compiling peg-runtime v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]    Compiling bytes v1.2.0
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.10
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling either v1.7.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling peg-macros v0.8.0
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling mqttrs v0.2.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling peg v0.8.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ctor v0.1.22
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling polling v2.2.0
[INFO] [stderr]    Compiling mio v0.8.4
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling async-io v1.7.0
[INFO] [stderr]    Compiling async-global-executor v2.2.0
[INFO] [stderr]    Compiling async-std v1.12.0
[INFO] [stderr]    Compiling futures-executor v0.3.21
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]    Compiling mqtt-async-client v0.3.1
[INFO] [stderr]    Compiling dan v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `tokio::task::JoinSet`
[INFO] [stdout]    --> src/bin/dan.rs:7:46
[INFO] [stdout]     |
[INFO] [stdout]   7 | use tokio::{select, signal, sync::broadcast, task::JoinSet};
[INFO] [stdout]     |                                              ^^^^^^^^^^^^^ no `JoinSet` in `task`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.20.0/src/task/mod.rs:311:27
[INFO] [stdout]     |
[INFO] [stdout] 308 | /     cfg_unstable! {
[INFO] [stdout] 309 | |         pub mod join_set;
[INFO] [stdout] 310 | |         #[doc(inline)]
[INFO] [stdout] 311 | |         pub use join_set::JoinSet;
[INFO] [stdout]     | |                           ^^^^^^^
[INFO] [stdout] 312 | |         pub use crate::runtime::task::{Id, AbortHandle};
[INFO] [stdout] 313 | |     }
[INFO] [stdout]     | |_____- the item is gated here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dan` (bin "dan") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0bcad36ac9f6e847b31a3702d48d30f7e705cbcca2a5ad0f028b65fd575793cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bcad36ac9f6e847b31a3702d48d30f7e705cbcca2a5ad0f028b65fd575793cf", kill_on_drop: false }`
[INFO] [stdout] 0bcad36ac9f6e847b31a3702d48d30f7e705cbcca2a5ad0f028b65fd575793cf