[INFO] cloning repository https://github.com/YiRanMushroom/network_study_one_project
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/YiRanMushroom/network_study_one_project" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYiRanMushroom%2Fnetwork_study_one_project", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYiRanMushroom%2Fnetwork_study_one_project'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6845cf74078b03487bcf47e2e04400276aabf847
[INFO] checking YiRanMushroom/network_study_one_project against try#73ffebff6f34db7eb167bf9edcf2afa19c3073e9 for pr-147841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYiRanMushroom%2Fnetwork_study_one_project" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/YiRanMushroom/network_study_one_project
[INFO] finished tweaking git repo https://github.com/YiRanMushroom/network_study_one_project
[INFO] tweaked toml for git repo https://github.com/YiRanMushroom/network_study_one_project written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/YiRanMushroom/network_study_one_project on toolchain 73ffebff6f34db7eb167bf9edcf2afa19c3073e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/YiRanMushroom/network_study_one_project 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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "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 uuid v1.13.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18bee164b99bb978915458739f62fe9b481250e476485bb9c1f080c5f7633fb4
[INFO] running `Command { std: "docker" "start" "-a" "18bee164b99bb978915458739f62fe9b481250e476485bb9c1f080c5f7633fb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18bee164b99bb978915458739f62fe9b481250e476485bb9c1f080c5f7633fb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18bee164b99bb978915458739f62fe9b481250e476485bb9c1f080c5f7633fb4", kill_on_drop: false }`
[INFO] [stdout] 18bee164b99bb978915458739f62fe9b481250e476485bb9c1f080c5f7633fb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d29999188defe6e039e3245e12972119c10f7f3bd60acb4a85b214d15f0abb6f
[INFO] running `Command { std: "docker" "start" "-a" "d29999188defe6e039e3245e12972119c10f7f3bd60acb4a85b214d15f0abb6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.16
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling httparse v1.10.0
[INFO] [stderr]     Checking smallvec v1.14.0
[INFO] [stderr]     Checking http v1.2.0
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking log v0.4.25
[INFO] [stderr]    Compiling serde_json v1.0.138
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking socket2 v0.5.8
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking getrandom v0.3.1
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking uuid v1.13.1
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]    Compiling thiserror-impl v2.0.11
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking tokio v1.43.0
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking thiserror v2.0.11
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tungstenite v0.26.1
[INFO] [stderr]     Checking tokio-tungstenite v0.26.1
[INFO] [stderr]     Checking common v0.1.0 (/opt/rustwide/workdir/common)
[INFO] [stderr]     Checking server v0.1.0 (/opt/rustwide/workdir/server)
[INFO] [stderr]     Checking client v0.1.0 (/opt/rustwide/workdir/client)
[INFO] [stdout] warning: unused variable: `username`
[INFO] [stdout]   --> client/src/main.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let username: Option<String> = None;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_username`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> server/src/main.rs:220:5
[INFO] [stdout]     |
[INFO] [stdout] 220 |     mut thread_to_main_tx: Sender<ThreadsToMainMessage>,
[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]    --> server/src/main.rs:220:5
[INFO] [stdout]     |
[INFO] [stdout] 220 |     mut thread_to_main_tx: Sender<ThreadsToMainMessage>,
[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: `username`
[INFO] [stdout]   --> client/src/main.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let username: Option<String> = None;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_username`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uuid`
[INFO] [stdout]   --> server/src/main.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |                         for (uuid, user_essential) in uuid_to_user_essential_map.iter() {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_uuid`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Usernames` is never constructed
[INFO] [stdout]  --> server/src/channel_message.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum MainToThreadsMessage {
[INFO] [stdout]   |          -------------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 9 |     Usernames(Vec<String>),
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `MainToThreadsMessage` has derived impls for the traits `Clone` and `Debug`, but these are 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: unused variable: `uuid`
[INFO] [stdout]   --> server/src/main.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |                         for (uuid, user_essential) in uuid_to_user_essential_map.iter() {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_uuid`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `uuid` is never read
[INFO] [stdout]   --> server/src/main.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     struct UserEssential {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 67 |         uuid: Uuid,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Usernames` is never constructed
[INFO] [stdout]  --> server/src/channel_message.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum MainToThreadsMessage {
[INFO] [stdout]   |          -------------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 9 |     Usernames(Vec<String>),
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `MainToThreadsMessage` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.10s
[INFO] running `Command { std: "docker" "inspect" "d29999188defe6e039e3245e12972119c10f7f3bd60acb4a85b214d15f0abb6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d29999188defe6e039e3245e12972119c10f7f3bd60acb4a85b214d15f0abb6f", kill_on_drop: false }`
[INFO] [stdout] d29999188defe6e039e3245e12972119c10f7f3bd60acb4a85b214d15f0abb6f