[INFO] fetching crate leetcodecli 0.1.1...
[INFO] checking leetcodecli-0.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate leetcodecli 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate leetcodecli 0.1.1
[INFO] finished tweaking crates.io crate leetcodecli 0.1.1
[INFO] tweaked toml for crates.io crate leetcodecli 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate leetcodecli 0.1.1 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate leetcodecli 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3dbc38126cccd92956f18d2c246931bbf3526984f6787914d163420ec3ea37ed
[INFO] running `Command { std: "docker" "start" "-a" "3dbc38126cccd92956f18d2c246931bbf3526984f6787914d163420ec3ea37ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3dbc38126cccd92956f18d2c246931bbf3526984f6787914d163420ec3ea37ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dbc38126cccd92956f18d2c246931bbf3526984f6787914d163420ec3ea37ed", kill_on_drop: false }`
[INFO] [stdout] 3dbc38126cccd92956f18d2c246931bbf3526984f6787914d163420ec3ea37ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 331272d9d70a006a3998a102071733badc0d1c7ad10ba944deb55bd4cbcaeb5f
[INFO] running `Command { std: "docker" "start" "-a" "331272d9d70a006a3998a102071733badc0d1c7ad10ba944deb55bd4cbcaeb5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling openssl-sys v0.9.74
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking mio v0.8.3
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling openssl v0.10.40
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking futf v0.1.5
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking phf v0.10.1
[INFO] [stderr]    Compiling cookie v0.15.1
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking tendril v0.4.3
[INFO] [stderr]     Checking psl-types v2.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling cookie v0.16.0
[INFO] [stderr]    Compiling async-trait v0.1.56
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.22
[INFO] [stderr]     Checking time v0.3.9
[INFO] [stderr]     Checking indexmap v1.8.2
[INFO] [stderr]     Checking publicsuffix v2.1.1
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking ipnet v2.5.0
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]     Checking const_format v0.2.24
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling phf_codegen v0.10.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.2
[INFO] [stderr]    Compiling markup5ever v0.11.0
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling openssl-macros v0.1.0
[INFO] [stderr]    Compiling html5ever v0.26.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling sscanf_macro v0.2.1
[INFO] [stderr]    Compiling clap_derive v3.1.18
[INFO] [stderr]     Checking tokio v1.19.2
[INFO] [stderr]     Checking sscanf v0.2.1
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]     Checking clap v3.1.18
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling serde_with_macros v1.5.2
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]     Checking tokio-util v0.7.3
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.13
[INFO] [stderr]     Checking string_cache v0.8.4
[INFO] [stderr]     Checking serde_json v1.0.81
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking cookie_store v0.15.1
[INFO] [stderr]     Checking leetcode_cache v0.1.0
[INFO] [stderr]     Checking serde_with v1.14.0
[INFO] [stderr]     Checking hyper v0.14.19
[INFO] [stderr]     Checking xml5ever v0.17.0
[INFO] [stderr]     Checking html2text v0.4.2
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.10
[INFO] [stderr]     Checking leetcodecli v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `cookie` is never read
[INFO] [stdout]   --> src/leetcode/command/auth.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub struct GitAuthPlugin {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 90 |     cookie: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `github` is never read
[INFO] [stdout]  --> src/leetcode/config.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Urls<'a> {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 8 |     pub leetcode: LeetcodeUrls<'a>,
[INFO] [stdout] 9 |     pub github: GithubUrls<'a>,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `base`, `api`, `problems`, `submission`, and `github_login` are never read
[INFO] [stdout]   --> src/leetcode/config.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct LeetcodeUrls<'a> {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 13 |     pub base: &'a str,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 14 |     pub api: &'a str,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 15 |     pub graphql: &'a str,
[INFO] [stdout] 16 |     pub problems: &'a str,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub submission: &'a str,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub github_login: &'a str,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `login` and `session` are never read
[INFO] [stdout]   --> src/leetcode/config.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct GithubUrls<'a> {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 27 |     pub login: &'a str,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 28 |     pub session: &'a str,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Unstar` is never constructed
[INFO] [stdout]  --> src/leetcode/term/icon.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Icon {
[INFO] [stdout]   |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 6 |     Unstar,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leetcodecli` (bin "leetcodecli") due to 9 previous errors; 5 warnings emitted
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/leetcode/cli.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 | /         /// login mode
[INFO] [stdout] 42 | |         #[clap(default_value = "cookie", possible_values = ["cookie", "git"])]
[INFO] [stdout] 43 | |         mode: String,
[INFO] [stdout]    | |____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/leetcode/cli.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 | /         /// logout mode
[INFO] [stdout] 49 | |         #[clap(default_value = "cookie", possible_values = ["cookie", "git"])]
[INFO] [stdout] 50 | |         mode: String,
[INFO] [stdout]    | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/leetcode/cli.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | /     /// filter by keyword
[INFO] [stdout] 57 | |     #[clap(short, long)]
[INFO] [stdout] 58 | |     pub keyword: Option<String>,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/leetcode/cli.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | /     /// filter by tag
[INFO] [stdout] 61 | |     #[clap(short, long)]
[INFO] [stdout] 62 | |     pub tag: Option<String>,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/leetcode/cli.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | /     /// filter by difficulty
[INFO] [stdout] 65 | |     #[clap(short, long)]
[INFO] [stdout] 66 | |     pub difficulty: Option<String>,
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/leetcode/cli.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 80 | /     /// order by `problem id`, `title`, `difficulty`
[INFO] [stdout] 81 | |     #[clap(short, long)]
[INFO] [stdout] 82 | |     pub order: Option<String>,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/leetcode/cli.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 | /     /// programming language to write answer
[INFO] [stdout] 91 | |     #[clap(short, long)]
[INFO] [stdout] 92 | |     pub language: Option<String>,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/leetcode/cli.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 | /     /// the source code file to submit
[INFO] [stdout] 98 | |     pub filename: String,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/leetcode/cli.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | /     /// test mode, "\n" in test_data will be turn into new line
[INFO] [stdout] 101 | |     #[clap(short, long)]
[INFO] [stdout] 102 | |     pub test_data: Option<String>,
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cookie` is never read
[INFO] [stdout]   --> src/leetcode/command/auth.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub struct GitAuthPlugin {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 90 |     cookie: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `github` is never read
[INFO] [stdout]  --> src/leetcode/config.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Urls<'a> {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 8 |     pub leetcode: LeetcodeUrls<'a>,
[INFO] [stdout] 9 |     pub github: GithubUrls<'a>,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `base`, `api`, `problems`, `submission`, and `github_login` are never read
[INFO] [stdout]   --> src/leetcode/config.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct LeetcodeUrls<'a> {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 13 |     pub base: &'a str,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 14 |     pub api: &'a str,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 15 |     pub graphql: &'a str,
[INFO] [stdout] 16 |     pub problems: &'a str,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub submission: &'a str,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub github_login: &'a str,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `login` and `session` are never read
[INFO] [stdout]   --> src/leetcode/config.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct GithubUrls<'a> {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 27 |     pub login: &'a str,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 28 |     pub session: &'a str,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Unstar` is never constructed
[INFO] [stdout]  --> src/leetcode/term/icon.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Icon {
[INFO] [stdout]   |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 6 |     Unstar,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/leetcode/cli.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 | /         /// login mode
[INFO] [stdout] 42 | |         #[clap(default_value = "cookie", possible_values = ["cookie", "git"])]
[INFO] [stdout] 43 | |         mode: String,
[INFO] [stdout]    | |____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/leetcode/cli.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 | /         /// logout mode
[INFO] [stdout] 49 | |         #[clap(default_value = "cookie", possible_values = ["cookie", "git"])]
[INFO] [stdout] 50 | |         mode: String,
[INFO] [stdout]    | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/leetcode/cli.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | /     /// filter by keyword
[INFO] [stdout] 57 | |     #[clap(short, long)]
[INFO] [stdout] 58 | |     pub keyword: Option<String>,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/leetcode/cli.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | /     /// filter by tag
[INFO] [stdout] 61 | |     #[clap(short, long)]
[INFO] [stdout] 62 | |     pub tag: Option<String>,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/leetcode/cli.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | /     /// filter by difficulty
[INFO] [stdout] 65 | |     #[clap(short, long)]
[INFO] [stdout] 66 | |     pub difficulty: Option<String>,
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/leetcode/cli.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 80 | /     /// order by `problem id`, `title`, `difficulty`
[INFO] [stdout] 81 | |     #[clap(short, long)]
[INFO] [stdout] 82 | |     pub order: Option<String>,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/leetcode/cli.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 | /     /// programming language to write answer
[INFO] [stdout] 91 | |     #[clap(short, long)]
[INFO] [stdout] 92 | |     pub language: Option<String>,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/leetcode/cli.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 | /     /// the source code file to submit
[INFO] [stdout] 98 | |     pub filename: String,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/leetcode/cli.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | /     /// test mode, "\n" in test_data will be turn into new line
[INFO] [stdout] 101 | |     #[clap(short, long)]
[INFO] [stdout] 102 | |     pub test_data: Option<String>,
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leetcodecli` (bin "leetcodecli" test) due to 9 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "331272d9d70a006a3998a102071733badc0d1c7ad10ba944deb55bd4cbcaeb5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "331272d9d70a006a3998a102071733badc0d1c7ad10ba944deb55bd4cbcaeb5f", kill_on_drop: false }`
[INFO] [stdout] 331272d9d70a006a3998a102071733badc0d1c7ad10ba944deb55bd4cbcaeb5f
