[INFO] cloning repository https://github.com/pms-oj/pms-slave
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pms-oj/pms-slave" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpms-oj%2Fpms-slave", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpms-oj%2Fpms-slave'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0ff810d5f92a9fd725fd370457a75b5b22ab378
[INFO] checking pms-oj/pms-slave against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpms-oj%2Fpms-slave" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/pms-oj/pms-slave
[INFO] finished tweaking git repo https://github.com/pms-oj/pms-slave
[INFO] tweaked toml for git repo https://github.com/pms-oj/pms-slave written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/pms-oj/pms-slave on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/pms-oj/pms-slave already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/polymath-cc/judge-protocol`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-macro v0.3.25
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee0f95fb2374f54ddb2b2e5d2e2f5ccf8379cd8f713b86453254ca80a549bf30
[INFO] running `Command { std: "docker" "start" "-a" "ee0f95fb2374f54ddb2b2e5d2e2f5ccf8379cd8f713b86453254ca80a549bf30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee0f95fb2374f54ddb2b2e5d2e2f5ccf8379cd8f713b86453254ca80a549bf30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee0f95fb2374f54ddb2b2e5d2e2f5ccf8379cd8f713b86453254ca80a549bf30", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5bc7ebe04026ac5d8b1ffcafbde0096e2dd87492575c29e147e3abbb1a400bd6
[INFO] running `Command { std: "docker" "start" "-a" "5bc7ebe04026ac5d8b1ffcafbde0096e2dd87492575c29e147e3abbb1a400bd6", kill_on_drop: false }`
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[INFO] [stderr]     Checking chrono v0.4.22
[INFO] [stderr]     Checking url v2.3.1
[INFO] [stderr]     Checking time v0.3.16
[INFO] [stderr]     Checking brotli v3.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling futures-macro v0.3.25
[INFO] [stderr]    Compiling thiserror-impl v1.0.37
[INFO] [stderr]    Compiling openssl-macros v0.1.0
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling uuid-macro-internal v1.2.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.12
[INFO] [stderr]    Compiling actix_derive v0.6.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking async-compression v0.3.15
[INFO] [stderr]     Checking pin-project v1.0.12
[INFO] [stderr]     Checking thiserror v1.0.37
[INFO] [stderr]     Checking futures-executor v0.3.25
[INFO] [stderr]     Checking futures v0.3.25
[INFO] [stderr]     Checking serdect v0.1.0
[INFO] [stderr]     Checking uuid v1.2.1
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[INFO] [stderr]     Checking serde_bytes v0.11.7
[INFO] [stderr]     Checking serde-value v0.7.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking sec1 v0.3.0
[INFO] [stderr]     Checking elliptic-curve v0.12.3
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[INFO] [stderr]     Checking log4rs v1.2.0
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[INFO] [stderr]     Checking async-native-tls v0.4.0
[INFO] [stderr]     Checking async-global-executor v2.3.0
[INFO] [stderr]     Checking k256 v0.11.6
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[INFO] [stderr]     Checking async-tar v0.4.2
[INFO] [stderr]     Checking tokio-util v0.7.4
[INFO] [stderr]     Checking actix-rt v2.7.0
[INFO] [stderr]     Checking combine v4.6.6
[INFO] [stderr]     Checking actix v0.13.0
[INFO] [stderr]     Checking judge-protocol v0.1.0 (https://github.com/polymath-cc/judge-protocol#dce1614b)
[INFO] [stderr]     Checking redis v0.22.1
[INFO] [stderr]     Checking pms-slave v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::CONFIG`
[INFO] [stdout]  --> src/container/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::CONFIG;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::CONFIG`
[INFO] [stdout]  --> src/container/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::CONFIG;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_std::net::TcpStream`
[INFO] [stdout]  --> src/judge.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use async_std::net::TcpStream;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_std::net::TcpStream`
[INFO] [stdout]  --> src/judge.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use async_std::net::TcpStream;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bincode::Options`
[INFO] [stdout]  --> src/judge.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use bincode::Options;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `judge_protocol::judge::*`
[INFO] [stdout]  --> src/judge.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use judge_protocol::judge::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `judge_protocol::packet::*`
[INFO] [stdout]  --> src/judge.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use judge_protocol::packet::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::pin::Pin`
[INFO] [stdout]  --> src/judge.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::pin::Pin;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bincode::Options`
[INFO] [stdout]  --> src/judge.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use bincode::Options;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `judge_protocol::judge::*`
[INFO] [stdout]  --> src/judge.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use judge_protocol::judge::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `judge_protocol::packet::*`
[INFO] [stdout]  --> src/judge.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use judge_protocol::packet::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::pin::Pin`
[INFO] [stdout]  --> src/judge.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::pin::Pin;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tempfile::NamedTempFile`
[INFO] [stdout]   --> src/language.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use tempfile::NamedTempFile;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Client`
[INFO] [stdout]   --> src/language.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 | use redis::{Client, AsyncCommands};
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_std::fs::DirBuilder`
[INFO] [stdout]  --> src/protocol.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use async_std::fs::DirBuilder;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_std::io::BufReader`
[INFO] [stdout]  --> src/protocol.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use async_std::io::BufReader;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `k256::PublicKey`
[INFO] [stdout]   --> src/protocol.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use k256::PublicKey;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tempfile::NamedTempFile`
[INFO] [stdout]   --> src/protocol.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | use tempfile::NamedTempFile;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]   --> src/protocol.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | use std::fs::File;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::PathBuf`
[INFO] [stdout]   --> src/protocol.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use std::path::PathBuf;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::pin::Pin`
[INFO] [stdout]   --> src/protocol.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | use std::pin::Pin;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `redis::Client`
[INFO] [stdout]   --> src/protocol.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | use redis::Client;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tempfile::NamedTempFile`
[INFO] [stdout]   --> src/language.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use tempfile::NamedTempFile;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Client`
[INFO] [stdout]   --> src/language.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 | use redis::{Client, AsyncCommands};
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_std::fs::DirBuilder`
[INFO] [stdout]  --> src/protocol.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use async_std::fs::DirBuilder;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_std::io::BufReader`
[INFO] [stdout]  --> src/protocol.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use async_std::io::BufReader;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `k256::PublicKey`
[INFO] [stdout]   --> src/protocol.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use k256::PublicKey;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tempfile::NamedTempFile`
[INFO] [stdout]   --> src/protocol.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | use tempfile::NamedTempFile;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]   --> src/protocol.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | use std::fs::File;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::PathBuf`
[INFO] [stdout]   --> src/protocol.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use std::path::PathBuf;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::pin::Pin`
[INFO] [stdout]   --> src/protocol.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | use std::pin::Pin;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `redis::Client`
[INFO] [stdout]   --> src/protocol.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | use redis::Client;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: Use of ambiguously glob imported trait `Write`
[INFO] [stdout]    --> src/language.rs:167:18
[INFO] [stdout]     |
[INFO] [stdout]   6 | use std::io::{self, prelude::*};
[INFO] [stdout]     |                     ------- `Write` imported ambiguously here
[INFO] [stdout] ...
[INFO] [stdout] 167 |         tempfile.write_all(&code).ok();
[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 #147992 <https://github.com/rust-lang/rust/issues/147992>
[INFO] [stdout]     = help: Import `Write` explicitly
[INFO] [stdout]     = note: `#[warn(ambiguous_glob_imported_traits)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: Use of ambiguously glob imported trait `Write`
[INFO] [stdout]    --> src/language.rs:168:18
[INFO] [stdout]     |
[INFO] [stdout]   6 | use std::io::{self, prelude::*};
[INFO] [stdout]     |                     ------- `Write` imported ambiguously here
[INFO] [stdout] ...
[INFO] [stdout] 168 |         tempfile.flush().ok();
[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 #147992 <https://github.com/rust-lang/rust/issues/147992>
[INFO] [stdout]     = help: Import `Write` explicitly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: Use of ambiguously glob imported trait `Write`
[INFO] [stdout]    --> src/language.rs:167:18
[INFO] [stdout]     |
[INFO] [stdout]   6 | use std::io::{self, prelude::*};
[INFO] [stdout]     |                     ------- `Write` imported ambiguously here
[INFO] [stdout] ...
[INFO] [stdout] 167 |         tempfile.write_all(&code).ok();
[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 #147992 <https://github.com/rust-lang/rust/issues/147992>
[INFO] [stdout]     = help: Import `Write` explicitly
[INFO] [stdout]     = note: `#[warn(ambiguous_glob_imported_traits)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: Use of ambiguously glob imported trait `Write`
[INFO] [stdout]    --> src/language.rs:168:18
[INFO] [stdout]     |
[INFO] [stdout]   6 | use std::io::{self, prelude::*};
[INFO] [stdout]     |                     ------- `Write` imported ambiguously here
[INFO] [stdout] ...
[INFO] [stdout] 168 |         tempfile.flush().ok();
[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 #147992 <https://github.com/rust-lang/rust/issues/147992>
[INFO] [stdout]     = help: Import `Write` explicitly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status_checker`
[INFO] [stdout]    --> src/protocol.rs:288:57
[INFO] [stdout]     |
[INFO] [stdout] 288 | ...                   if let Some(status_checker) = res_checker.meta.status {
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_status_checker`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status_checker`
[INFO] [stdout]    --> src/protocol.rs:396:57
[INFO] [stdout]     |
[INFO] [stdout] 396 | ...                   if let Some(status_checker) = res_checker.meta.status {
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_status_checker`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status_checker`
[INFO] [stdout]    --> src/protocol.rs:288:57
[INFO] [stdout]     |
[INFO] [stdout] 288 | ...                   if let Some(status_checker) = res_checker.meta.status {
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_status_checker`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status_checker`
[INFO] [stdout]    --> src/protocol.rs:396:57
[INFO] [stdout]     |
[INFO] [stdout] 396 | ...                   if let Some(status_checker) = res_checker.meta.status {
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_status_checker`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `message`, `max_rss`, `killed`, `csw_voluntary`, `csw_forced`, and `cg_oom_killed` are never read
[INFO] [stdout]    --> src/container/mod.rs:320:9
[INFO] [stdout]     |
[INFO] [stdout] 316 | pub struct RunMeta {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 320 |     pub message: Option<String>,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 321 |     pub max_rss: Option<i32>,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 322 |     pub killed: Option<i32>,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 325 |     pub csw_voluntary: Option<i32>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 326 |     pub csw_forced: Option<i32>,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 327 |     pub cg_mem: Option<u64>,
[INFO] [stdout] 328 |     pub cg_oom_killed: Option<i32>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RunMeta` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `main_binary` and `checker_binary` are never read
[INFO] [stdout]   --> src/judge.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct OnJudge {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub main_binary: PathBuf,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 18 |     pub checker_binary: PathBuf,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `version` are never read
[INFO] [stdout]   --> src/language.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Language {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 24 |     pub uuid: Uuid,
[INFO] [stdout] 25 |     pub name: String, // Display name
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 26 |     pub version: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Language` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Unknown` is never constructed
[INFO] [stdout]   --> src/protocol.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub enum Actions {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 46 |     Unknown,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Actions` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `verify_token` is never used
[INFO] [stdout]   --> src/protocol.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl State {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 59 |     async fn verify_token(&self, stream: Arc<TcpStream>) -> async_std::io::Result<()> {
[INFO] [stdout]    |              ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `message`, `max_rss`, `killed`, `csw_voluntary`, `csw_forced`, and `cg_oom_killed` are never read
[INFO] [stdout]    --> src/container/mod.rs:320:9
[INFO] [stdout]     |
[INFO] [stdout] 316 | pub struct RunMeta {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 320 |     pub message: Option<String>,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 321 |     pub max_rss: Option<i32>,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 322 |     pub killed: Option<i32>,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 325 |     pub csw_voluntary: Option<i32>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 326 |     pub csw_forced: Option<i32>,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 327 |     pub cg_mem: Option<u64>,
[INFO] [stdout] 328 |     pub cg_oom_killed: Option<i32>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RunMeta` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `main_binary` and `checker_binary` are never read
[INFO] [stdout]   --> src/judge.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct OnJudge {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub main_binary: PathBuf,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 18 |     pub checker_binary: PathBuf,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `version` are never read
[INFO] [stdout]   --> src/language.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Language {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 24 |     pub uuid: Uuid,
[INFO] [stdout] 25 |     pub name: String, // Display name
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 26 |     pub version: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Language` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Unknown` is never constructed
[INFO] [stdout]   --> src/protocol.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub enum Actions {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 46 |     Unknown,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Actions` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `verify_token` is never used
[INFO] [stdout]   --> src/protocol.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl State {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 59 |     async fn verify_token(&self, stream: Arc<TcpStream>) -> async_std::io::Result<()> {
[INFO] [stdout]    |              ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/protocol.rs:137:25
[INFO] [stdout]     |
[INFO] [stdout] 137 |                         self.signal.send(Actions::Reconnect(0)).await;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 137 |                         let _ = self.signal.send(Actions::Reconnect(0)).await;
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/protocol.rs:137:25
[INFO] [stdout]     |
[INFO] [stdout] 137 |                         self.signal.send(Actions::Reconnect(0)).await;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 137 |                         let _ = self.signal.send(Actions::Reconnect(0)).await;
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 40.37s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: openssl v0.10.42, redis v0.22.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "5bc7ebe04026ac5d8b1ffcafbde0096e2dd87492575c29e147e3abbb1a400bd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bc7ebe04026ac5d8b1ffcafbde0096e2dd87492575c29e147e3abbb1a400bd6", kill_on_drop: false }`
[INFO] [stdout] 5bc7ebe04026ac5d8b1ffcafbde0096e2dd87492575c29e147e3abbb1a400bd6
