[INFO] fetching crate docktor 0.35.2...
[INFO] checking docktor-0.35.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate docktor 0.35.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate docktor 0.35.2
[INFO] finished tweaking crates.io crate docktor 0.35.2
[INFO] tweaked toml for crates.io crate docktor 0.35.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate docktor 0.35.2 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 docktor 0.35.2 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] 48c8cdbd30fbc580171e56f242281e7380e0493f8e4f86c06e411e5bec2042ea
[INFO] running `Command { std: "docker" "start" "-a" "48c8cdbd30fbc580171e56f242281e7380e0493f8e4f86c06e411e5bec2042ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48c8cdbd30fbc580171e56f242281e7380e0493f8e4f86c06e411e5bec2042ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48c8cdbd30fbc580171e56f242281e7380e0493f8e4f86c06e411e5bec2042ea", kill_on_drop: false }`
[INFO] [stdout] 48c8cdbd30fbc580171e56f242281e7380e0493f8e4f86c06e411e5bec2042ea
[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] ac7088f1b413ae15692d61f51b107c75416f25f9df96b11593329f21f5a05dc8
[INFO] running `Command { std: "docker" "start" "-a" "ac7088f1b413ae15692d61f51b107c75416f25f9df96b11593329f21f5a05dc8", kill_on_drop: false }`
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[INFO] [stderr]     Checking docktor v0.35.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `default_url`
[INFO] [stdout]    --> src/server/prometheus.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |         let default_url = "metrics".to_string();
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_url`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `default_url`
[INFO] [stdout]    --> src/server/prometheus.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |         let default_url = "metrics".to_string();
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_url`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/client.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | /     /// Docktor URL
[INFO] [stdout] 10 | |     #[clap(short = 'U', long = "api-url", env("DOCKTOR_API_URL"))]
[INFO] [stdout] 11 | |     pub api_url: 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: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/client.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// API key
[INFO] [stdout] 13 | |     #[clap(short = 'A', long = "api-key", env("DOCKTOR_API_KEY"))]
[INFO] [stdout] 14 | |     pub api_key: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/dns.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     /// Hostname.(mandatory for add and remove).
[INFO] [stdout] 14 | |     #[clap(short = 'H', long = "hostname")]
[INFO] [stdout] 15 | |     pub hostname: Option<String>,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/dns.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     /// IP address (mandatory for add and remove)..
[INFO] [stdout] 17 | |     #[clap(short = 'i', long = "ip-address")]
[INFO] [stdout] 18 | |     pub ip_address: Option<String>,
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/server/mod.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     #[clap(short = 'b', long = "bind")]
[INFO] [stdout] 30 | |     pub bind: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/systemd.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     /// Hostname to run services on.
[INFO] [stdout] 17 | |     #[clap(short = 'H', long = "hostname")]
[INFO] [stdout] 18 | |     pub hostname: Option<String>,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/systemd.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     /// List of services.
[INFO] [stdout] 20 | |     #[clap(short = 's', long = "services")]
[INFO] [stdout] 21 | |     pub services: Vec<String>,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `docktor` (lib) due to 7 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/client.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | /     /// Docktor URL
[INFO] [stdout] 10 | |     #[clap(short = 'U', long = "api-url", env("DOCKTOR_API_URL"))]
[INFO] [stdout] 11 | |     pub api_url: 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: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/client.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// API key
[INFO] [stdout] 13 | |     #[clap(short = 'A', long = "api-key", env("DOCKTOR_API_KEY"))]
[INFO] [stdout] 14 | |     pub api_key: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/dns.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     /// Hostname.(mandatory for add and remove).
[INFO] [stdout] 14 | |     #[clap(short = 'H', long = "hostname")]
[INFO] [stdout] 15 | |     pub hostname: Option<String>,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/dns.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     /// IP address (mandatory for add and remove)..
[INFO] [stdout] 17 | |     #[clap(short = 'i', long = "ip-address")]
[INFO] [stdout] 18 | |     pub ip_address: Option<String>,
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/server/mod.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     #[clap(short = 'b', long = "bind")]
[INFO] [stdout] 30 | |     pub bind: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/systemd.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     /// Hostname to run services on.
[INFO] [stdout] 17 | |     #[clap(short = 'H', long = "hostname")]
[INFO] [stdout] 18 | |     pub hostname: Option<String>,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/systemd.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     /// List of services.
[INFO] [stdout] 20 | |     #[clap(short = 's', long = "services")]
[INFO] [stdout] 21 | |     pub services: Vec<String>,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `docktor` (lib test) due to 7 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "ac7088f1b413ae15692d61f51b107c75416f25f9df96b11593329f21f5a05dc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac7088f1b413ae15692d61f51b107c75416f25f9df96b11593329f21f5a05dc8", kill_on_drop: false }`
[INFO] [stdout] ac7088f1b413ae15692d61f51b107c75416f25f9df96b11593329f21f5a05dc8
