[INFO] cloning repository https://github.com/SheSnake/game_server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SheSnake/game_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSheSnake%2Fgame_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSheSnake%2Fgame_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cc88f1b784f5aaf6605e9c95f89d5a4c68e2c913
[INFO] testing SheSnake/game_server against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSheSnake%2Fgame_server" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SheSnake/game_server on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SheSnake/game_server
[INFO] finished tweaking git repo https://github.com/SheSnake/game_server
[INFO] tweaked toml for git repo https://github.com/SheSnake/game_server written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/SheSnake/game_server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redis v0.15.1
[INFO] [stderr]   Downloaded serde_bytes v0.10.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 110836accaacba62fc8906197e0a0b8fa3bd1bc0c4453a7e159556b88a0ed8d7
[INFO] running `Command { std: "docker" "start" "-a" "110836accaacba62fc8906197e0a0b8fa3bd1bc0c4453a7e159556b88a0ed8d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "110836accaacba62fc8906197e0a0b8fa3bd1bc0c4453a7e159556b88a0ed8d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "110836accaacba62fc8906197e0a0b8fa3bd1bc0c4453a7e159556b88a0ed8d7", kill_on_drop: false }`
[INFO] [stdout] 110836accaacba62fc8906197e0a0b8fa3bd1bc0c4453a7e159556b88a0ed8d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 63ad7dc00aecf0b32843c14f03e0044e1f1ba499758e3767553ff4b142ae4f07
[INFO] running `Command { std: "docker" "start" "-a" "63ad7dc00aecf0b32843c14f03e0044e1f1ba499758e3767553ff4b142ae4f07", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling memchr v2.3.2
[INFO] [stderr]    Compiling futures-core v0.3.4
[INFO] [stderr]    Compiling futures-sink v0.3.4
[INFO] [stderr]    Compiling futures-task v0.3.4
[INFO] [stderr]    Compiling ascii v0.9.3
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling futures-executor v0.3.4
[INFO] [stderr]    Compiling tokio-macros v0.2.4
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling tokio v0.2.11
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling redis v0.15.1
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling bincode v1.2.1
[INFO] [stderr]    Compiling serde_bytes v0.10.5
[INFO] [stderr]    Compiling game_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/game/room/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/server_net/mod.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut sessions: HashMap<String, i64> = HashMap::new();
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/game/majiang_state.rs:302:9
[INFO] [stdout]     |
[INFO] [stdout] 301 |         return;
[INFO] [stdout]     |         ------ any code following this expression is unreachable
[INFO] [stdout] 302 |         let mut in_wait_rsp = false;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user_id`
[INFO] [stdout]    --> src/game/mod.rs:428:35
[INFO] [stdout]     |
[INFO] [stdout] 428 |     fn check_user_op_valid(&self, user_id: i64, msg: &GameOperation) -> bool {
[INFO] [stdout]     |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sessions`
[INFO] [stdout]   --> src/server_net/mod.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut sessions: HashMap<String, i64> = HashMap::new();
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sessions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:174:25
[INFO] [stdout]     |
[INFO] [stdout] 174 |                     let mut room_id = String::from_utf8(over.room_id.clone()).unwrap();
[INFO] [stdout]     |                         ----^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/main.rs:174:57
[INFO] [stdout]     |
[INFO] [stdout] 174 |                     let mut room_id = String::from_utf8(over.room_id.clone()).unwrap();
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(safe_packed_borrows)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/game/mod.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |             next_card_msg.provide_cards.clear();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/game/mod.rs:681:37
[INFO] [stdout]     |
[INFO] [stdout] 681 |                     user_cur_score: msg.user_cur_score.clone(),
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]   --> src/server_net/message.rs:68:10
[INFO] [stdout]    |
[INFO] [stdout] 68 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]    = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]   --> src/server_net/message.rs:86:10
[INFO] [stdout]    |
[INFO] [stdout] 86 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]    = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:102:10
[INFO] [stdout]     |
[INFO] [stdout] 102 | #[derive(Serialize, Deserialize, Copy, Clone)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:131:10
[INFO] [stdout]     |
[INFO] [stdout] 131 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:143:55
[INFO] [stdout]     |
[INFO] [stdout] 143 |         return HEADER_SIZE + GAME_INFO_SIZE + 2 + 8 + self.provide_cards.len();
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:147:10
[INFO] [stdout]     |
[INFO] [stdout] 147 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:156:19
[INFO] [stdout]     |
[INFO] [stdout] 156 |         for op in self.operations.iter() {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:163:10
[INFO] [stdout]     |
[INFO] [stdout] 163 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:175:55
[INFO] [stdout]     |
[INFO] [stdout] 175 |         return HEADER_SIZE + GAME_INFO_SIZE + 2 + 8 + self.provide_cards.len();
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:200:10
[INFO] [stdout]     |
[INFO] [stdout] 200 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:212:46
[INFO] [stdout]     |
[INFO] [stdout] 212 |         return HEADER_SIZE + 1 + 8 + 4 + 8 + self.room_id.len();
[INFO] [stdout]     |                                              ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:216:10
[INFO] [stdout]     |
[INFO] [stdout] 216 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:227:42
[INFO] [stdout]     |
[INFO] [stdout] 227 |         return HEADER_SIZE + 1 + 8 + 8 + self.room_id.len();
[INFO] [stdout]     |                                          ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:231:10
[INFO] [stdout]     |
[INFO] [stdout] 231 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:242:38
[INFO] [stdout]     |
[INFO] [stdout] 242 |         return HEADER_SIZE + 8 + 8 * self.user_pos.len() + 8 + 1 * self.user_ready_status.len() + 8 + 1 * self.room_id.len();
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:242:68
[INFO] [stdout]     |
[INFO] [stdout] 242 |         return HEADER_SIZE + 8 + 8 * self.user_pos.len() + 8 + 1 * self.user_ready_status.len() + 8 + 1 * self.room_id.len();
[INFO] [stdout]     |                                                                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:242:107
[INFO] [stdout]     |
[INFO] [stdout] 242 |         return HEADER_SIZE + 8 + 8 * self.user_pos.len() + 8 + 1 * self.user_ready_status.len() + 8 + 1 * self.room_id.len();
[INFO] [stdout]     |                                                                                                           ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:246:10
[INFO] [stdout]     |
[INFO] [stdout] 246 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:260:50
[INFO] [stdout]     |
[INFO] [stdout] 260 |         return HEADER_SIZE + 1 + 4 + 1 + 8 + 8 + self.user_cur_score.len() * 4 + 8 + self.user_score_change.len() * 4;
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:260:86
[INFO] [stdout]     |
[INFO] [stdout] 260 |         return HEADER_SIZE + 1 + 4 + 1 + 8 + 8 + self.user_cur_score.len() * 4 + 8 + self.user_score_change.len() * 4;
[INFO] [stdout]     |                                                                                      ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:264:10
[INFO] [stdout]     |
[INFO] [stdout] 264 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:277:10
[INFO] [stdout]     |
[INFO] [stdout] 277 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:292:20
[INFO] [stdout]     |
[INFO] [stdout] 292 |         len += 8 + self.user_on_hand.len() * 1;
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:293:20
[INFO] [stdout]     |
[INFO] [stdout] 293 |         len += 8 + self.on_game_user_id.len() * 8;
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:295:27
[INFO] [stdout]     |
[INFO] [stdout] 295 |         for user_group in self.on_game_group_cards.iter() {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:305:10
[INFO] [stdout]     |
[INFO] [stdout] 305 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:316:38
[INFO] [stdout]     |
[INFO] [stdout] 316 |         return HEADER_SIZE + 8 + 1 * self.room_id.len() + 4 + 8 + 4 * self.user_cur_score.len();
[INFO] [stdout]     |                                      ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:316:71
[INFO] [stdout]     |
[INFO] [stdout] 316 |         return HEADER_SIZE + 8 + 1 * self.room_id.len() + 4 + 8 + 4 * self.user_cur_score.len();
[INFO] [stdout]     |                                                                       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:90:37
[INFO] [stdout]    |
[INFO] [stdout] 90 | ...                   sender.send(msg).await;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 38 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 26s
[INFO] running `Command { std: "docker" "inspect" "63ad7dc00aecf0b32843c14f03e0044e1f1ba499758e3767553ff4b142ae4f07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63ad7dc00aecf0b32843c14f03e0044e1f1ba499758e3767553ff4b142ae4f07", kill_on_drop: false }`
[INFO] [stdout] 63ad7dc00aecf0b32843c14f03e0044e1f1ba499758e3767553ff4b142ae4f07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b27667c5133c884a8790326fadbc17920b9b30742ccf01bdf24a55167e83b7c1
[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" "b27667c5133c884a8790326fadbc17920b9b30742ccf01bdf24a55167e83b7c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling game_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/game/room/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/server_net/mod.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut sessions: HashMap<String, i64> = HashMap::new();
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/game/majiang_state.rs:302:9
[INFO] [stdout]     |
[INFO] [stdout] 301 |         return;
[INFO] [stdout]     |         ------ any code following this expression is unreachable
[INFO] [stdout] 302 |         let mut in_wait_rsp = false;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user_id`
[INFO] [stdout]    --> src/game/mod.rs:428:35
[INFO] [stdout]     |
[INFO] [stdout] 428 |     fn check_user_op_valid(&self, user_id: i64, msg: &GameOperation) -> bool {
[INFO] [stdout]     |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sessions`
[INFO] [stdout]   --> src/server_net/mod.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut sessions: HashMap<String, i64> = HashMap::new();
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sessions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:174:25
[INFO] [stdout]     |
[INFO] [stdout] 174 |                     let mut room_id = String::from_utf8(over.room_id.clone()).unwrap();
[INFO] [stdout]     |                         ----^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/main.rs:174:57
[INFO] [stdout]     |
[INFO] [stdout] 174 |                     let mut room_id = String::from_utf8(over.room_id.clone()).unwrap();
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(safe_packed_borrows)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/game/mod.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |             next_card_msg.provide_cards.clear();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/game/mod.rs:681:37
[INFO] [stdout]     |
[INFO] [stdout] 681 |                     user_cur_score: msg.user_cur_score.clone(),
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]   --> src/server_net/message.rs:68:10
[INFO] [stdout]    |
[INFO] [stdout] 68 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]    = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]   --> src/server_net/message.rs:86:10
[INFO] [stdout]    |
[INFO] [stdout] 86 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]    = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:102:10
[INFO] [stdout]     |
[INFO] [stdout] 102 | #[derive(Serialize, Deserialize, Copy, Clone)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:131:10
[INFO] [stdout]     |
[INFO] [stdout] 131 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:143:55
[INFO] [stdout]     |
[INFO] [stdout] 143 |         return HEADER_SIZE + GAME_INFO_SIZE + 2 + 8 + self.provide_cards.len();
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:147:10
[INFO] [stdout]     |
[INFO] [stdout] 147 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:156:19
[INFO] [stdout]     |
[INFO] [stdout] 156 |         for op in self.operations.iter() {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:163:10
[INFO] [stdout]     |
[INFO] [stdout] 163 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:175:55
[INFO] [stdout]     |
[INFO] [stdout] 175 |         return HEADER_SIZE + GAME_INFO_SIZE + 2 + 8 + self.provide_cards.len();
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:200:10
[INFO] [stdout]     |
[INFO] [stdout] 200 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:212:46
[INFO] [stdout]     |
[INFO] [stdout] 212 |         return HEADER_SIZE + 1 + 8 + 4 + 8 + self.room_id.len();
[INFO] [stdout]     |                                              ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:216:10
[INFO] [stdout]     |
[INFO] [stdout] 216 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:227:42
[INFO] [stdout]     |
[INFO] [stdout] 227 |         return HEADER_SIZE + 1 + 8 + 8 + self.room_id.len();
[INFO] [stdout]     |                                          ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:231:10
[INFO] [stdout]     |
[INFO] [stdout] 231 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:242:38
[INFO] [stdout]     |
[INFO] [stdout] 242 |         return HEADER_SIZE + 8 + 8 * self.user_pos.len() + 8 + 1 * self.user_ready_status.len() + 8 + 1 * self.room_id.len();
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:242:68
[INFO] [stdout]     |
[INFO] [stdout] 242 |         return HEADER_SIZE + 8 + 8 * self.user_pos.len() + 8 + 1 * self.user_ready_status.len() + 8 + 1 * self.room_id.len();
[INFO] [stdout]     |                                                                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:242:107
[INFO] [stdout]     |
[INFO] [stdout] 242 |         return HEADER_SIZE + 8 + 8 * self.user_pos.len() + 8 + 1 * self.user_ready_status.len() + 8 + 1 * self.room_id.len();
[INFO] [stdout]     |                                                                                                           ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:246:10
[INFO] [stdout]     |
[INFO] [stdout] 246 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:260:50
[INFO] [stdout]     |
[INFO] [stdout] 260 |         return HEADER_SIZE + 1 + 4 + 1 + 8 + 8 + self.user_cur_score.len() * 4 + 8 + self.user_score_change.len() * 4;
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:260:86
[INFO] [stdout]     |
[INFO] [stdout] 260 |         return HEADER_SIZE + 1 + 4 + 1 + 8 + 8 + self.user_cur_score.len() * 4 + 8 + self.user_score_change.len() * 4;
[INFO] [stdout]     |                                                                                      ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:264:10
[INFO] [stdout]     |
[INFO] [stdout] 264 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:277:10
[INFO] [stdout]     |
[INFO] [stdout] 277 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:292:20
[INFO] [stdout]     |
[INFO] [stdout] 292 |         len += 8 + self.user_on_hand.len() * 1;
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:293:20
[INFO] [stdout]     |
[INFO] [stdout] 293 |         len += 8 + self.on_game_user_id.len() * 8;
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:295:27
[INFO] [stdout]     |
[INFO] [stdout] 295 |         for user_group in self.on_game_group_cards.iter() {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:305:10
[INFO] [stdout]     |
[INFO] [stdout] 305 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:316:38
[INFO] [stdout]     |
[INFO] [stdout] 316 |         return HEADER_SIZE + 8 + 1 * self.room_id.len() + 4 + 8 + 4 * self.user_cur_score.len();
[INFO] [stdout]     |                                      ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/server_net/message.rs:316:71
[INFO] [stdout]     |
[INFO] [stdout] 316 |         return HEADER_SIZE + 8 + 1 * self.room_id.len() + 4 + 8 + 4 * self.user_cur_score.len();
[INFO] [stdout]     |                                                                       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:90:37
[INFO] [stdout]    |
[INFO] [stdout] 90 | ...                   sender.send(msg).await;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 38 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.59s
[INFO] running `Command { std: "docker" "inspect" "b27667c5133c884a8790326fadbc17920b9b30742ccf01bdf24a55167e83b7c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b27667c5133c884a8790326fadbc17920b9b30742ccf01bdf24a55167e83b7c1", kill_on_drop: false }`
[INFO] [stdout] b27667c5133c884a8790326fadbc17920b9b30742ccf01bdf24a55167e83b7c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5db6dfbb8bcc98efb86b605b48f9a359564c98418424c761a3f02e77befe5a81
[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" "5db6dfbb8bcc98efb86b605b48f9a359564c98418424c761a3f02e77befe5a81", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/game/room/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/server_net/mod.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |     let mut sessions: HashMap<String, i64> = HashMap::new();
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/game/majiang_state.rs:302:9
[INFO] [stderr]     |
[INFO] [stderr] 301 |         return;
[INFO] [stderr]     |         ------ any code following this expression is unreachable
[INFO] [stderr] 302 |         let mut in_wait_rsp = false;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `user_id`
[INFO] [stderr]    --> src/game/mod.rs:428:35
[INFO] [stderr]     |
[INFO] [stderr] 428 |     fn check_user_op_valid(&self, user_id: i64, msg: &GameOperation) -> bool {
[INFO] [stderr]     |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_id`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sessions`
[INFO] [stderr]   --> src/server_net/mod.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |     let mut sessions: HashMap<String, i64> = HashMap::new();
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sessions`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:174:25
[INFO] [stderr]     |
[INFO] [stderr] 174 |                     let mut room_id = String::from_utf8(over.room_id.clone()).unwrap();
[INFO] [stderr]     |                         ----^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/main.rs:174:57
[INFO] [stderr]     |
[INFO] [stderr] 174 |                     let mut room_id = String::from_utf8(over.room_id.clone()).unwrap();
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(safe_packed_borrows)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/game/mod.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 |             next_card_msg.provide_cards.clear();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/game/mod.rs:681:37
[INFO] [stderr]     |
[INFO] [stderr] 681 |                     user_cur_score: msg.user_cur_score.clone(),
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stderr]   --> src/server_net/message.rs:68:10
[INFO] [stderr]    |
[INFO] [stderr] 68 | #[derive(Serialize, Deserialize)]
[INFO] [stderr]    |          ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]    = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stderr]   --> src/server_net/message.rs:86:10
[INFO] [stderr]    |
[INFO] [stderr] 86 | #[derive(Serialize, Deserialize)]
[INFO] [stderr]    |          ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]    = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:102:10
[INFO] [stderr]     |
[INFO] [stderr] 102 | #[derive(Serialize, Deserialize, Copy, Clone)]
[INFO] [stderr]     |          ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:131:10
[INFO] [stderr]     |
[INFO] [stderr] 131 | #[derive(Serialize, Deserialize)]
[INFO] [stderr]     |          ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:143:55
[INFO] [stderr]     |
[INFO] [stderr] 143 |         return HEADER_SIZE + GAME_INFO_SIZE + 2 + 8 + self.provide_cards.len();
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:147:10
[INFO] [stderr]     |
[INFO] [stderr] 147 | #[derive(Serialize, Deserialize)]
[INFO] [stderr]     |          ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:156:19
[INFO] [stderr]     |
[INFO] [stderr] 156 |         for op in self.operations.iter() {
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:163:10
[INFO] [stderr]     |
[INFO] [stderr] 163 | #[derive(Serialize, Deserialize)]
[INFO] [stderr]     |          ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:175:55
[INFO] [stderr]     |
[INFO] [stderr] 175 |         return HEADER_SIZE + GAME_INFO_SIZE + 2 + 8 + self.provide_cards.len();
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:200:10
[INFO] [stderr]     |
[INFO] [stderr] 200 | #[derive(Serialize, Deserialize)]
[INFO] [stderr]     |          ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:212:46
[INFO] [stderr]     |
[INFO] [stderr] 212 |         return HEADER_SIZE + 1 + 8 + 4 + 8 + self.room_id.len();
[INFO] [stderr]     |                                              ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:216:10
[INFO] [stderr]     |
[INFO] [stderr] 216 | #[derive(Serialize, Deserialize)]
[INFO] [stderr]     |          ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:227:42
[INFO] [stderr]     |
[INFO] [stderr] 227 |         return HEADER_SIZE + 1 + 8 + 8 + self.room_id.len();
[INFO] [stderr]     |                                          ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:231:10
[INFO] [stderr]     |
[INFO] [stderr] 231 | #[derive(Serialize, Deserialize)]
[INFO] [stderr]     |          ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:242:38
[INFO] [stderr]     |
[INFO] [stderr] 242 |         return HEADER_SIZE + 8 + 8 * self.user_pos.len() + 8 + 1 * self.user_ready_status.len() + 8 + 1 * self.room_id.len();
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:242:68
[INFO] [stderr]     |
[INFO] [stderr] 242 |         return HEADER_SIZE + 8 + 8 * self.user_pos.len() + 8 + 1 * self.user_ready_status.len() + 8 + 1 * self.room_id.len();
[INFO] [stderr]     |                                                                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:242:107
[INFO] [stderr]     |
[INFO] [stderr] 242 |         return HEADER_SIZE + 8 + 8 * self.user_pos.len() + 8 + 1 * self.user_ready_status.len() + 8 + 1 * self.room_id.len();
[INFO] [stderr]     |                                                                                                           ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:246:10
[INFO] [stderr]     |
[INFO] [stderr] 246 | #[derive(Serialize, Deserialize)]
[INFO] [stderr]     |          ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:260:50
[INFO] [stderr]     |
[INFO] [stderr] 260 |         return HEADER_SIZE + 1 + 4 + 1 + 8 + 8 + self.user_cur_score.len() * 4 + 8 + self.user_score_change.len() * 4;
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:260:86
[INFO] [stderr]     |
[INFO] [stderr] 260 |         return HEADER_SIZE + 1 + 4 + 1 + 8 + 8 + self.user_cur_score.len() * 4 + 8 + self.user_score_change.len() * 4;
[INFO] [stderr]     |                                                                                      ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:264:10
[INFO] [stderr]     |
[INFO] [stderr] 264 | #[derive(Serialize, Deserialize)]
[INFO] [stderr]     |          ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:277:10
[INFO] [stderr]     |
[INFO] [stderr] 277 | #[derive(Serialize, Deserialize)]
[INFO] [stderr]     |          ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:292:20
[INFO] [stderr]     |
[INFO] [stderr] 292 |         len += 8 + self.user_on_hand.len() * 1;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:293:20
[INFO] [stderr]     |
[INFO] [stderr] 293 |         len += 8 + self.on_game_user_id.len() * 8;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:295:27
[INFO] [stderr]     |
[INFO] [stderr] 295 |         for user_group in self.on_game_group_cards.iter() {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:305:10
[INFO] [stderr]     |
[INFO] [stderr] 305 | #[derive(Serialize, Deserialize)]
[INFO] [stderr]     |          ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:316:38
[INFO] [stderr]     |
[INFO] [stderr] 316 |         return HEADER_SIZE + 8 + 1 * self.room_id.len() + 4 + 8 + 4 * self.user_cur_score.len();
[INFO] [stderr]     |                                      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/server_net/message.rs:316:71
[INFO] [stderr]     |
[INFO] [stderr] 316 |         return HEADER_SIZE + 8 + 1 * self.room_id.len() + 4 + 8 + 4 * self.user_cur_score.len();
[INFO] [stderr]     |                                                                       ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:90:37
[INFO] [stderr]    |
[INFO] [stderr] 90 | ...                   sender.send(msg).await;
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 38 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/game_server-2acf5d36537a1f61
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5db6dfbb8bcc98efb86b605b48f9a359564c98418424c761a3f02e77befe5a81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5db6dfbb8bcc98efb86b605b48f9a359564c98418424c761a3f02e77befe5a81", kill_on_drop: false }`
[INFO] [stdout] 5db6dfbb8bcc98efb86b605b48f9a359564c98418424c761a3f02e77befe5a81
