[INFO] fetching crate mpc-manager 0.1.1...
[INFO] testing mpc-manager-0.1.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate mpc-manager 0.1.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate mpc-manager 0.1.1
[INFO] finished tweaking crates.io crate mpc-manager 0.1.1
[INFO] tweaked toml for crates.io crate mpc-manager 0.1.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mpc-manager 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 mpc-manager 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pin-project v1.0.12
[INFO] [stderr]   Downloaded sync_wrapper v0.1.1
[INFO] [stderr]   Downloaded async-trait v0.1.61
[INFO] [stderr]   Downloaded axum-core v0.3.1
[INFO] [stderr]   Downloaded anyhow v1.0.68
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.92
[INFO] [stderr]   Downloaded tungstenite v0.18.0
[INFO] [stderr]   Downloaded tokio-tungstenite v0.18.0
[INFO] [stderr]   Downloaded base64 v0.20.0
[INFO] [stderr]   Downloaded cxx-build v1.0.92
[INFO] [stderr]   Downloaded tracing-bunyan-formatter v0.3.6
[INFO] [stderr]   Downloaded pest v2.5.7
[INFO] [stderr]   Downloaded axum v0.6.2
[INFO] [stderr]   Downloaded pest_meta v2.5.7
[INFO] [stderr]   Downloaded matchit v0.7.0
[INFO] [stderr]   Downloaded cxx v1.0.92
[INFO] [stderr]   Downloaded serde_path_to_error v0.1.9
[INFO] [stderr]   Downloaded pest_generator v2.5.7
[INFO] [stderr]   Downloaded pest_derive v2.5.7
[INFO] [stderr]   Downloaded json-rpc2 v0.11.1
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.92
[INFO] [stderr]   Downloaded serde-aux v3.1.0
[INFO] [stderr]   Downloaded pin-project-internal v1.0.12
[INFO] [stderr]   Downloaded once_cell v1.17.0
[INFO] [stderr]   Downloaded rustversion v1.0.11
[INFO] [stderr]   Downloaded http-range-header v0.3.0
[INFO] [stderr]   Downloaded uuid-macro-internal v1.2.2
[INFO] [stderr]   Downloaded tokio v1.24.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] cdaa1193f48bdc5c58f0a1b26f2295ea4ff9db606c1ee651712db239f4cdf5f1
[INFO] running `Command { std: "docker" "start" "-a" "cdaa1193f48bdc5c58f0a1b26f2295ea4ff9db606c1ee651712db239f4cdf5f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdaa1193f48bdc5c58f0a1b26f2295ea4ff9db606c1ee651712db239f4cdf5f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdaa1193f48bdc5c58f0a1b26f2295ea4ff9db606c1ee651712db239f4cdf5f1", kill_on_drop: false }`
[INFO] [stdout] cdaa1193f48bdc5c58f0a1b26f2295ea4ff9db606c1ee651712db239f4cdf5f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 9ed891293091841eadb3b5b4f0549a9e989b6cbe47bdacbc641f99380f68af76
[INFO] running `Command { std: "docker" "start" "-a" "9ed891293091841eadb3b5b4f0549a9e989b6cbe47bdacbc641f99380f68af76", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling rustversion v1.0.11
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling ryu v1.0.12
[INFO] [stderr]    Compiling itoa v1.0.5
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling uuid-macro-internal v1.2.2
[INFO] [stderr]    Compiling strum v0.24.1
[INFO] [stderr]    Compiling uuid v1.2.2
[INFO] [stderr]    Compiling mpc-manager v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `sessions` and `clients` are never read
[INFO] [stdout]   --> src/state/group.rs:38:16
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Group {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub(crate) sessions: HashMap<SessionId, Session>,
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub(crate) clients: HashSet<ClientId>,
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Group` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `mpc_manager`
[INFO] [stdout]   --> src/main.rs:74:2
[INFO] [stdout]    |
[INFO] [stdout] 74 | }
[INFO] [stdout]    |  ^ consider adding a `main` function to `src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mpc-manager` (bin "mpc-manager") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "9ed891293091841eadb3b5b4f0549a9e989b6cbe47bdacbc641f99380f68af76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ed891293091841eadb3b5b4f0549a9e989b6cbe47bdacbc641f99380f68af76", kill_on_drop: false }`
[INFO] [stdout] 9ed891293091841eadb3b5b4f0549a9e989b6cbe47bdacbc641f99380f68af76