[INFO] cloning repository https://github.com/rosew0od/ms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rosew0od/ms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frosew0od%2Fms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frosew0od%2Fms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e94062f5fcbf64eeecb084a21c44ab7143b5b4d1
[INFO] checking rosew0od/ms against try#54e27f559f23913c1d5afb1a0f0114e9e61b81b8 for pr-147589
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frosew0od%2Fms" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/rosew0od/ms
[INFO] finished tweaking git repo https://github.com/rosew0od/ms
[INFO] tweaked toml for git repo https://github.com/rosew0od/ms written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rosew0od/ms on toolchain 54e27f559f23913c1d5afb1a0f0114e9e61b81b8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rosew0od/ms 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" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking rosew0od/ms against try#54e27f559f23913c1d5afb1a0f0114e9e61b81b8 for pr-147589
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frosew0od%2Fms" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/rosew0od/ms
[INFO] finished tweaking git repo https://github.com/rosew0od/ms
[INFO] tweaked toml for git repo https://github.com/rosew0od/ms written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rosew0od/ms on toolchain 54e27f559f23913c1d5afb1a0f0114e9e61b81b8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rosew0od/ms 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" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded equator-macro v0.4.2
[INFO] [stderr]   Downloaded varint-simd v0.4.1
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[INFO] [stderr]   Downloaded wasi v0.14.4+wasi-0.2.4
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ac7581ded3d7cf784ac64ea1856f01d3945978a7606f69f6043a23e4a4bd0ba
[INFO] running `Command { std: "docker" "start" "-a" "9ac7581ded3d7cf784ac64ea1856f01d3945978a7606f69f6043a23e4a4bd0ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ac7581ded3d7cf784ac64ea1856f01d3945978a7606f69f6043a23e4a4bd0ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ac7581ded3d7cf784ac64ea1856f01d3945978a7606f69f6043a23e4a4bd0ba", kill_on_drop: false }`
[INFO] [stdout] 9ac7581ded3d7cf784ac64ea1856f01d3945978a7606f69f6043a23e4a4bd0ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e98a82831e7bbad017b2d16c3fc47f5ee219e7939f4f10a5c2d08f8ff956d85a
[INFO] running `Command { std: "docker" "start" "-a" "e98a82831e7bbad017b2d16c3fc47f5ee219e7939f4f10a5c2d08f8ff956d85a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]    Compiling built v0.7.7
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking quick-error v2.0.1
[INFO] [stderr]     Checking getrandom v0.3.3
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[INFO] [stderr]     Checking half v2.6.0
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking zune-core v0.4.12
[INFO] [stderr]    Compiling noop_proc_macro v0.3.0
[INFO] [stderr]     Checking imgref v1.11.0
[INFO] [stderr]     Checking maybe-rayon v0.1.1
[INFO] [stderr]     Checking bitstream-io v2.6.0
[INFO] [stderr]     Checking weezl v0.1.10
[INFO] [stderr]     Checking new_debug_unreachable v1.0.6
[INFO] [stderr]     Checking avif-serialize v0.8.6
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking zune-jpeg v0.4.21
[INFO] [stderr]    Compiling rustc_version v0.4.1
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[INFO] [stderr]     Checking loop9 v0.1.5
[INFO] [stderr]     Checking zune-inflate v0.2.54
[INFO] [stderr]    Compiling rav1e v0.7.1
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[INFO] [stderr]    Compiling target-triple v0.1.4
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking bit_field v0.10.3
[INFO] [stderr]     Checking rgb v0.8.52
[INFO] [stderr]     Checking image-webp v0.2.4
[INFO] [stderr]     Checking syn v2.0.106
[INFO] [stderr]    Compiling varint-simd v0.4.1
[INFO] [stderr]     Checking png v0.18.0
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking exr v1.73.0
[INFO] [stderr]     Checking toml_parser v1.0.2
[INFO] [stderr]     Checking gif v0.13.3
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking toml_writer v1.0.2
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]     Checking tracing-subscriber v0.3.20
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]    Compiling simd_helpers v0.1.0
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking yansi v1.0.1
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[INFO] [stderr]     Checking rand v0.9.2
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[INFO] [stderr]     Checking pretty_assertions v1.4.1
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[INFO] [stderr]     Checking serde_spanned v1.0.0
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[INFO] [stderr]     Checking serde_json v1.0.143
[INFO] [stderr]     Checking toml v0.9.5
[INFO] [stderr]     Checking darling_core v0.21.3
[INFO] [stderr]     Checking proc-macro-error2 v2.0.1
[INFO] [stderr]    Compiling equator-macro v0.4.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling profiling-procmacros v1.0.17
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]    Compiling arg_enum_proc_macro v0.3.4
[INFO] [stderr]    Compiling fax_derive v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking profiling v1.0.17
[INFO] [stderr]     Checking equator v0.4.2
[INFO] [stderr]     Checking fax v0.2.6
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking aligned-vec v0.6.4
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking tiff v0.10.3
[INFO] [stderr]     Checking v_frame v0.3.9
[INFO] [stderr]     Checking av1-grain v0.2.4
[INFO] [stderr]    Compiling darling_macro v0.21.3
[INFO] [stderr]    Compiling darling v0.21.3
[INFO] [stderr]     Checking ms-protocol-core v0.1.0 (/opt/rustwide/workdir/protocol-core)
[INFO] [stderr]     Checking ms-protocol-derive v0.1.0 (/opt/rustwide/workdir/protocol-derive)
[INFO] [stderr]     Checking ms-protocol v0.1.0 (/opt/rustwide/workdir/protocol)
[INFO] [stdout] warning: unused import: `tap::TapFallible`
[INFO] [stdout]  --> protocol/src/var.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use tap::TapFallible;
[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: `error`
[INFO] [stdout]  --> protocol/src/var.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tracing::{error, trace};
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Tap`
[INFO] [stdout]  --> protocol/src/bounded.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use tap::{Tap, TapFallible};
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `trace`
[INFO] [stdout]  --> protocol/src/bounded.rs:2:22
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tracing::{error, trace};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking trybuild v1.0.110
[INFO] [stdout] warning: unused import: `tap::TapFallible`
[INFO] [stdout]  --> protocol/src/var.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use tap::TapFallible;
[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: `error`
[INFO] [stdout]  --> protocol/src/var.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tracing::{error, trace};
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Tap`
[INFO] [stdout]  --> protocol/src/bounded.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use tap::{Tap, TapFallible};
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `trace`
[INFO] [stdout]  --> protocol/src/bounded.rs:2:22
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tracing::{error, trace};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ravif v0.11.20
[INFO] [stderr]     Checking image v0.25.8
[INFO] [stderr]     Checking server v0.1.0 (/opt/rustwide/workdir/server)
[INFO] [stdout] warning: unused import: `codecs::png::PngEncoder`
[INFO] [stdout]  --> server/src/main.rs:2:53
[INFO] [stdout]   |
[INFO] [stdout] 2 | use image::{DynamicImage, ImageFormat, ImageReader, codecs::png::PngEncoder};
[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: `object::Object`
[INFO] [stdout]  --> server/src/main.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use json::{JsonValue, object, object::Object};
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `env::args`
[INFO] [stdout]  --> server/src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     env::args,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `field::debug` and `trace`
[INFO] [stdout]   --> server/src/main.rs:13:36
[INFO] [stdout]    |
[INFO] [stdout] 13 | use tracing::{Level, debug, error, field::debug, info, span, trace};
[INFO] [stdout]    |                                    ^^^^^^^^^^^^              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `layer::Filter`
[INFO] [stdout]   --> server/src/main.rs:14:41
[INFO] [stdout]    |
[INFO] [stdout] 14 | use tracing_subscriber::{FmtSubscriber, layer::Filter, util::SubscriberInitExt};
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `codecs::png::PngEncoder`
[INFO] [stdout]  --> server/src/main.rs:2:53
[INFO] [stdout]   |
[INFO] [stdout] 2 | use image::{DynamicImage, ImageFormat, ImageReader, codecs::png::PngEncoder};
[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: `object::Object`
[INFO] [stdout]  --> server/src/main.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use json::{JsonValue, object, object::Object};
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `env::args`
[INFO] [stdout]  --> server/src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     env::args,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `field::debug` and `trace`
[INFO] [stdout]   --> server/src/main.rs:13:36
[INFO] [stdout]    |
[INFO] [stdout] 13 | use tracing::{Level, debug, error, field::debug, info, span, trace};
[INFO] [stdout]    |                                    ^^^^^^^^^^^^              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `layer::Filter`
[INFO] [stdout]   --> server/src/main.rs:14:41
[INFO] [stdout]    |
[INFO] [stdout] 14 | use tracing_subscriber::{FmtSubscriber, layer::Filter, util::SubscriberInitExt};
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `util::SubscriberInitExt`
[INFO] [stdout]   --> server/src/main.rs:14:56
[INFO] [stdout]    |
[INFO] [stdout] 14 | use tracing_subscriber::{FmtSubscriber, layer::Filter, util::SubscriberInitExt};
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `util::SubscriberInitExt`
[INFO] [stdout]   --> server/src/main.rs:14:56
[INFO] [stdout]    |
[INFO] [stdout] 14 | use tracing_subscriber::{FmtSubscriber, layer::Filter, util::SubscriberInitExt};
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `addr` is never read
[INFO] [stdout]    --> server/src/main.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 174 | struct Client {
[INFO] [stdout]     |        ------ field in this struct
[INFO] [stdout] 175 |     addr: SocketAddr,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PingRequest` is never constructed
[INFO] [stdout]    --> server/src/main.rs:207:8
[INFO] [stdout]     |
[INFO] [stdout] 207 | struct PingRequest {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `addr` is never read
[INFO] [stdout]    --> server/src/main.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 174 | struct Client {
[INFO] [stdout]     |        ------ field in this struct
[INFO] [stdout] 175 |     addr: SocketAddr,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PingRequest` is never constructed
[INFO] [stdout]    --> server/src/main.rs:207:8
[INFO] [stdout]     |
[INFO] [stdout] 207 | struct PingRequest {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> server/src/main.rs:240:13
[INFO] [stdout]     |
[INFO] [stdout] 240 | /             self.favicon
[INFO] [stdout] 241 | |                 .resize(64, 64, image::imageops::FilterType::Nearest)
[INFO] [stdout] 242 | |                 .write_to(&mut buf, ImageFormat::Png);
[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] 240 |             let _ = self.favicon
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> server/src/main.rs:240:13
[INFO] [stdout]     |
[INFO] [stdout] 240 | /             self.favicon
[INFO] [stdout] 241 | |                 .resize(64, 64, image::imageops::FilterType::Nearest)
[INFO] [stdout] 242 | |                 .write_to(&mut buf, ImageFormat::Png);
[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] 240 |             let _ = self.favicon
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.36s
[INFO] running `Command { std: "docker" "inspect" "e98a82831e7bbad017b2d16c3fc47f5ee219e7939f4f10a5c2d08f8ff956d85a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e98a82831e7bbad017b2d16c3fc47f5ee219e7939f4f10a5c2d08f8ff956d85a", kill_on_drop: false }`
[INFO] [stdout] e98a82831e7bbad017b2d16c3fc47f5ee219e7939f4f10a5c2d08f8ff956d85a
