[INFO] cloning repository https://github.com/LeandroVandari/chat-async
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LeandroVandari/chat-async" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeandroVandari%2Fchat-async", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeandroVandari%2Fchat-async'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf873adab43b80fd7123cf0719f01f0d51c62e21
[INFO] checking LeandroVandari/chat-async against try#ed606620234c6b50f2414162c4bbabd5f4a925f3 for pr-147995
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeandroVandari%2Fchat-async" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/LeandroVandari/chat-async
[INFO] finished tweaking git repo https://github.com/LeandroVandari/chat-async
[INFO] tweaked toml for git repo https://github.com/LeandroVandari/chat-async written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/LeandroVandari/chat-async on toolchain ed606620234c6b50f2414162c4bbabd5f4a925f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/LeandroVandari/chat-async 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" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded procspawn v1.0.1
[INFO] [stderr]   Downloaded ipc-channel v0.18.3
[INFO] [stderr]   Downloaded tokio v1.47.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11e719d59c8d2cf5a65f51d59058a2357578ec6998ee1502b09fa85f5b04568c
[INFO] running `Command { std: "docker" "start" "-a" "11e719d59c8d2cf5a65f51d59058a2357578ec6998ee1502b09fa85f5b04568c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11e719d59c8d2cf5a65f51d59058a2357578ec6998ee1502b09fa85f5b04568c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11e719d59c8d2cf5a65f51d59058a2357578ec6998ee1502b09fa85f5b04568c", kill_on_drop: false }`
[INFO] [stdout] 11e719d59c8d2cf5a65f51d59058a2357578ec6998ee1502b09fa85f5b04568c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56351ad33280a714d85aa7144ce2c176e3b554a52000011932ab8d3f91e86844
[INFO] running `Command { std: "docker" "start" "-a" "56351ad33280a714d85aa7144ce2c176e3b554a52000011932ab8d3f91e86844", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling cc v1.2.30
[INFO] [stderr]     Checking gimli v0.31.1
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking rustc-demangle v0.1.26
[INFO] [stderr]    Compiling virtue v0.0.18
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking unty v0.0.4
[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling bincode_derive v2.0.1
[INFO] [stderr]    Compiling findshlibs v0.10.2
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking socket2 v0.6.0
[INFO] [stderr]     Checking uuid v1.17.0
[INFO] [stderr]     Checking tempfile v3.20.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking addr2line v0.24.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]     Checking tokio v1.47.0
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking thiserror v2.0.12
[INFO] [stderr]     Checking interprocess v2.2.3
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking backtrace v0.3.75
[INFO] [stderr]     Checking bincode v2.0.1
[INFO] [stderr]     Checking ipc-channel v0.18.3
[INFO] [stderr]     Checking procspawn v1.0.1
[INFO] [stderr]     Checking chat_async v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `select`
[INFO] [stdout]   --> src/connect/multicast/communicator/ipc/spawn_process.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     select,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `select`
[INFO] [stdout]   --> src/connect/multicast/communicator/ipc/spawn_process.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     select,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/connect/multicast/communicator/ipc/spawn_process.rs:68:24
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let (t_sender, mut r_sender) = mpsc::channel(8);
[INFO] [stdout]    |                        ----^^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/connect/multicast/communicator/ipc/spawn_process.rs:68:24
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let (t_sender, mut r_sender) = mpsc::channel(8);
[INFO] [stdout]    |                        ----^^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `multicast_connection`
[INFO] [stdout]   --> src/connect/multicast/communicator/ipc/spawn_process.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let multicast_connection = connect_to_multicast(multicast_addr)
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_multicast_connection`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r_sender`
[INFO] [stdout]   --> src/connect/multicast/communicator/ipc/spawn_process.rs:68:24
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let (t_sender, mut r_sender) = mpsc::channel(8);
[INFO] [stdout]    |                        ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_r_sender`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `multicast_connection`
[INFO] [stdout]   --> src/connect/multicast/communicator/ipc/spawn_process.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let multicast_connection = connect_to_multicast(multicast_addr)
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_multicast_connection`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r_sender`
[INFO] [stdout]   --> src/connect/multicast/communicator/ipc/spawn_process.rs:68:24
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let (t_sender, mut r_sender) = mpsc::channel(8);
[INFO] [stdout]    |                        ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_r_sender`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `multicast_addr` is never read
[INFO] [stdout]   --> src/connect/multicast/communicator/ipc/mod.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct IpcCommunicator {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] 22 |     ipc_conn: IpcStream,
[INFO] [stdout] 23 |     multicast_addr: SocketAddrV4,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpcCommunicator` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sender` is never read
[INFO] [stdout]   --> src/connect/multicast/server.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct MulticastServer<M: Message, C: Communicator = SocketCommunicator> {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     sender: Sender<M>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MulticastServer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `multicast_addr` is never read
[INFO] [stdout]   --> src/connect/multicast/communicator/ipc/mod.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct IpcCommunicator {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] 22 |     ipc_conn: IpcStream,
[INFO] [stdout] 23 |     multicast_addr: SocketAddrV4,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpcCommunicator` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sender` is never read
[INFO] [stdout]   --> src/connect/multicast/server.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct MulticastServer<M: Message, C: Communicator = SocketCommunicator> {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     sender: Sender<M>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MulticastServer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.29s
[INFO] running `Command { std: "docker" "inspect" "56351ad33280a714d85aa7144ce2c176e3b554a52000011932ab8d3f91e86844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56351ad33280a714d85aa7144ce2c176e3b554a52000011932ab8d3f91e86844", kill_on_drop: false }`
[INFO] [stdout] 56351ad33280a714d85aa7144ce2c176e3b554a52000011932ab8d3f91e86844
