[INFO] fetching crate hawkbit 0.6.0...
[INFO] checking hawkbit-0.6.0 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate hawkbit 0.6.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate hawkbit 0.6.0 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hawkbit 0.6.0
[INFO] finished tweaking crates.io crate hawkbit 0.6.0
[INFO] tweaked toml for crates.io crate hawkbit 0.6.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate hawkbit 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e864622e4f29720866dd98787fb8e43ee1e3be9cd2cce87aaa4da72cbf26133
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6e864622e4f29720866dd98787fb8e43ee1e3be9cd2cce87aaa4da72cbf26133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e864622e4f29720866dd98787fb8e43ee1e3be9cd2cce87aaa4da72cbf26133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e864622e4f29720866dd98787fb8e43ee1e3be9cd2cce87aaa4da72cbf26133", kill_on_drop: false }`
[INFO] [stdout] 6e864622e4f29720866dd98787fb8e43ee1e3be9cd2cce87aaa4da72cbf26133
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 296d4482d3ce86529756e8017583aba2ace146f36c3da1522ebf65fa117066de
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "296d4482d3ce86529756e8017583aba2ace146f36c3da1522ebf65fa117066de", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   log v0.4.14: std
[INFO] [stderr]   syn v1.0.73 (as host dependency): visit
[INFO] [stderr]   tokio v1.7.1: winapi
[INFO] [stderr] 
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]     Checking httpdate v1.0.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking encoding_rs v0.8.28
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tokio v1.7.1
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking http-body v0.4.2
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking strum v0.21.0
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking hyper v0.14.9
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.4
[INFO] [stderr]     Checking hawkbit v0.6.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/tests.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/polling.rs from 2018 edition to 2021
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `hawkbit_mock`
[INFO] [stdout]   --> tests/tests.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use hawkbit_mock::ddi::{
[INFO] [stdout]    |     ^^^^^^^^^^^^ use of undeclared crate or module `hawkbit_mock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]   --> tests/tests.rs:37:10
[INFO] [stdout]    |
[INFO] [stdout] 37 | #[tokio::test]
[INFO] [stdout]    |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]   --> tests/tests.rs:56:10
[INFO] [stdout]    |
[INFO] [stdout] 56 | #[tokio::test]
[INFO] [stdout]    |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> tests/tests.rs:155:10
[INFO] [stdout]     |
[INFO] [stdout] 155 | #[tokio::test]
[INFO] [stdout]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> tests/tests.rs:221:10
[INFO] [stdout]     |
[INFO] [stdout] 221 | #[tokio::test]
[INFO] [stdout]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> tests/tests.rs:281:10
[INFO] [stdout]     |
[INFO] [stdout] 281 | #[tokio::test]
[INFO] [stdout]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> tests/tests.rs:320:10
[INFO] [stdout]     |
[INFO] [stdout] 320 | #[tokio::test]
[INFO] [stdout]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> tests/tests.rs:464:10
[INFO] [stdout]     |
[INFO] [stdout] 464 | #[tokio::test]
[INFO] [stdout]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ServerBuilder`
[INFO] [stdout]   --> tests/tests.rs:41:18
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let server = ServerBuilder::default().tenant("my-tenant").build();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^ use of undeclared type `ServerBuilder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ServerBuilder`
[INFO] [stdout]   --> tests/tests.rs:60:18
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let server = ServerBuilder::default().build();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^ use of undeclared type `ServerBuilder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `DeploymentBuilder`
[INFO] [stdout]    --> tests/tests.rs:129:5
[INFO] [stdout]     |
[INFO] [stdout] 129 |     DeploymentBuilder::new("10", Type::Forced, Type::Attempt)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^ use of undeclared type `DeploymentBuilder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ChunkProtocol`
[INFO] [stdout]    --> tests/tests.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |             ChunkProtocol::BOTH,
[INFO] [stdout]     |             ^^^^^^^^^^^^^ use of undeclared type `ChunkProtocol`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ChunkProtocol`
[INFO] [stdout]    --> tests/tests.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |             ChunkProtocol::HTTP,
[INFO] [stdout]     |             ^^^^^^^^^^^^^ use of undeclared type `ChunkProtocol`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ChunkProtocol`
[INFO] [stdout]    --> tests/tests.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |             ChunkProtocol::HTTPS,
[INFO] [stdout]     |             ^^^^^^^^^^^^^ use of undeclared type `ChunkProtocol`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ServerBuilder`
[INFO] [stdout]    --> tests/tests.rs:159:18
[INFO] [stdout]     |
[INFO] [stdout] 159 |     let server = ServerBuilder::default().build();
[INFO] [stdout]     |                  ^^^^^^^^^^^^^ use of undeclared type `ServerBuilder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ChunkProtocol`
[INFO] [stdout]    --> tests/tests.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |         ChunkProtocol::BOTH,
[INFO] [stdout]     |         ^^^^^^^^^^^^^ use of undeclared type `ChunkProtocol`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ChunkProtocol`
[INFO] [stdout]    --> tests/tests.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 181 |         ChunkProtocol::HTTP,
[INFO] [stdout]     |         ^^^^^^^^^^^^^ use of undeclared type `ChunkProtocol`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ChunkProtocol`
[INFO] [stdout]    --> tests/tests.rs:182:9
[INFO] [stdout]     |
[INFO] [stdout] 182 |         ChunkProtocol::HTTPS,
[INFO] [stdout]     |         ^^^^^^^^^^^^^ use of undeclared type `ChunkProtocol`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ChunkProtocol`
[INFO] [stdout]    --> tests/tests.rs:187:13
[INFO] [stdout]     |
[INFO] [stdout] 187 |             ChunkProtocol::BOTH => "app-both",
[INFO] [stdout]     |             ^^^^^^^^^^^^^ use of undeclared type `ChunkProtocol`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ChunkProtocol`
[INFO] [stdout]    --> tests/tests.rs:188:13
[INFO] [stdout]     |
[INFO] [stdout] 188 |             ChunkProtocol::HTTP => "app-http",
[INFO] [stdout]     |             ^^^^^^^^^^^^^ use of undeclared type `ChunkProtocol`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ChunkProtocol`
[INFO] [stdout]    --> tests/tests.rs:189:13
[INFO] [stdout]     |
[INFO] [stdout] 189 |             ChunkProtocol::HTTPS => "app-https",
[INFO] [stdout]     |             ^^^^^^^^^^^^^ use of undeclared type `ChunkProtocol`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ServerBuilder`
[INFO] [stdout]    --> tests/tests.rs:225:18
[INFO] [stdout]     |
[INFO] [stdout] 225 |     let server = ServerBuilder::default().build();
[INFO] [stdout]     |                  ^^^^^^^^^^^^^ use of undeclared type `ServerBuilder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ServerBuilder`
[INFO] [stdout]    --> tests/tests.rs:285:18
[INFO] [stdout]     |
[INFO] [stdout] 285 |     let server = ServerBuilder::default().build();
[INFO] [stdout]     |                  ^^^^^^^^^^^^^ use of undeclared type `ServerBuilder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ServerBuilder`
[INFO] [stdout]    --> tests/tests.rs:324:18
[INFO] [stdout]     |
[INFO] [stdout] 324 |     let server = ServerBuilder::default().build();
[INFO] [stdout]     |                  ^^^^^^^^^^^^^ use of undeclared type `ServerBuilder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ServerBuilder`
[INFO] [stdout]    --> tests/tests.rs:468:18
[INFO] [stdout]     |
[INFO] [stdout] 468 |     let server = ServerBuilder::default().build();
[INFO] [stdout]     |                  ^^^^^^^^^^^^^ use of undeclared type `ServerBuilder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Server` in this scope
[INFO] [stdout]   --> tests/tests.rs:23:24
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn add_target(server: &Server, name: &str) -> (Client, Target) {
[INFO] [stdout]    |                        ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Target` in this scope
[INFO] [stdout]   --> tests/tests.rs:23:56
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn add_target(server: &Server, name: &str) -> (Client, Target) {
[INFO] [stdout]    |                                                        ^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]    |
[INFO] [stdout] 4  | use env_logger::Target;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Deployment` in this scope
[INFO] [stdout]    --> tests/tests.rs:115:45
[INFO] [stdout]     |
[INFO] [stdout] 115 | fn get_deployment(valid_checksums: bool) -> Deployment {
[INFO] [stdout]     |                                             ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]   --> examples/polling.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 | #[tokio::main]
[INFO] [stdout]    |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 28 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]   --> examples/polling.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | async fn main() -> Result<()> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hawkbit` due to 29 previous errors
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] [stderr] error: failed to migrate to next edition
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `cargo fix --edition --allow-no-vcs --allow-dirty --frozen --all --all-targets --message-format=json` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "296d4482d3ce86529756e8017583aba2ace146f36c3da1522ebf65fa117066de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "296d4482d3ce86529756e8017583aba2ace146f36c3da1522ebf65fa117066de", kill_on_drop: false }`
[INFO] [stdout] 296d4482d3ce86529756e8017583aba2ace146f36c3da1522ebf65fa117066de