[INFO] cloning repository https://github.com/korostelevm/yo-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/korostelevm/yo-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkorostelevm%2Fyo-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkorostelevm%2Fyo-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9b9aca5f7f441caae37b296a9dd9a49eef907e4
[INFO] testing korostelevm/yo-rust against 1.97.0-beta.6 for beta-1.98-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkorostelevm%2Fyo-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/korostelevm/yo-rust
[INFO] finished tweaking git repo https://github.com/korostelevm/yo-rust
[INFO] tweaked toml for git repo https://github.com/korostelevm/yo-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/korostelevm/yo-rust on toolchain 1.97.0-beta.6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.97.0-beta.6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/korostelevm/yo-rust 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" "+1.97.0-beta.6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v1.8.2
[INFO] [stderr]   Downloaded cmake v0.1.49
[INFO] [stderr]   Downloaded futures-util v0.3.27
[INFO] [stderr]   Downloaded futures-core v0.3.27
[INFO] [stderr]   Downloaded plotters-bitmap v0.3.2
[INFO] [stderr]   Downloaded futures-sink v0.3.27
[INFO] [stderr]   Downloaded lambda_runtime_api_client v0.7.0
[INFO] [stderr]   Downloaded freetype v0.7.0
[INFO] [stderr]   Downloaded yeslogic-fontconfig-sys v3.2.0
[INFO] [stderr]   Downloaded const-cstr v0.3.0
[INFO] [stderr]   Downloaded futures-macro v0.3.27
[INFO] [stderr]   Downloaded futures-io v0.3.27
[INFO] [stderr]   Downloaded async-stream v0.3.4
[INFO] [stderr]   Downloaded lambda_http v0.7.3
[INFO] [stderr]   Downloaded futures-task v0.3.27
[INFO] [stderr]   Downloaded futures-channel v0.3.27
[INFO] [stderr]   Downloaded futures-executor v0.3.27
[INFO] [stderr]   Downloaded serde_derive v1.0.156
[INFO] [stderr]   Downloaded float-ord v0.2.0
[INFO] [stderr]   Downloaded async-stream-impl v0.3.4
[INFO] [stderr]   Downloaded query_map v0.6.0
[INFO] [stderr]   Downloaded pathfinder_simd v0.5.1
[INFO] [stderr]   Downloaded serde v1.0.156
[INFO] [stderr]   Downloaded lambda_runtime v0.7.3
[INFO] [stderr]   Downloaded futures v0.3.27
[INFO] [stderr]   Downloaded font-kit v0.11.0
[INFO] [stderr]   Downloaded unicode-bidi v0.3.11
[INFO] [stderr]   Downloaded aws_lambda_events v0.7.3
[INFO] [stderr]   Downloaded image v0.24.5
[INFO] [stderr]   Downloaded syn v2.0.4
[INFO] [stderr]   Downloaded tokio v1.26.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 548c63e90b2d09777ea3762f88e419e71fa6588643319b824152cf986c20a0a1
[INFO] running `Command { std: "docker" "start" "548c63e90b2d09777ea3762f88e419e71fa6588643319b824152cf986c20a0a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "548c63e90b2d09777ea3762f88e419e71fa6588643319b824152cf986c20a0a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "548c63e90b2d09777ea3762f88e419e71fa6588643319b824152cf986c20a0a1" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "548c63e90b2d09777ea3762f88e419e71fa6588643319b824152cf986c20a0a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "548c63e90b2d09777ea3762f88e419e71fa6588643319b824152cf986c20a0a1" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling serde_derive v1.0.156
[INFO] [stderr]    Compiling serde v1.0.156
[INFO] [stderr]    Compiling futures-core v0.3.27
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling futures-channel v0.3.27
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling futures-task v0.3.27
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling futures-sink v0.3.27
[INFO] [stderr]    Compiling futures-util v0.3.27
[INFO] [stderr]    Compiling futures-io v0.3.27
[INFO] [stderr]    Compiling tokio v1.26.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling serde_json v1.0.94
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stderr]    Compiling try-lock v0.2.4
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]    Compiling iana-time-zone v0.1.54
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling jpeg-decoder v0.3.0
[INFO] [stderr]    Compiling font-kit v0.11.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.11
[INFO] [stderr]    Compiling weezl v0.1.7
[INFO] [stderr]    Compiling const-cstr v0.3.0
[INFO] [stderr]    Compiling plotters-backend v0.3.4
[INFO] [stderr]    Compiling bytemuck v1.13.1
[INFO] [stderr]    Compiling walkdir v2.3.3
[INFO] [stderr]    Compiling cmake v0.1.49
[INFO] [stderr]    Compiling float-ord v0.2.0
[INFO] [stderr]    Compiling yeslogic-fontconfig-sys v3.2.0
[INFO] [stderr]    Compiling gif v0.11.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.4
[INFO] [stderr]    Compiling plotters-svg v0.3.3
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling encoding_rs v0.8.32
[INFO] [stderr]    Compiling mime v0.3.16
[INFO] [stderr]    Compiling ttf-parser v0.15.2
[INFO] [stderr]    Compiling mio v0.8.6
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling freetype-sys v0.13.1
[INFO] [stderr]    Compiling flate2 v1.0.25
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling idna v0.3.0
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.16
[INFO] [stderr]    Compiling freetype v0.7.0
[INFO] [stderr]    Compiling url v2.3.1
[INFO] [stderr]    Compiling png v0.17.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]    Compiling image v0.24.5
[INFO] [stderr]    Compiling pest v2.5.6
[INFO] [stderr]    Compiling plotters-bitmap v0.3.2
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling futures-macro v0.3.27
[INFO] [stderr]    Compiling tracing-attributes v0.1.23
[INFO] [stderr]    Compiling tokio-macros v1.8.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.12
[INFO] [stderr]    Compiling async-stream-impl v0.3.4
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling pathfinder_simd v0.5.1
[INFO] [stderr]    Compiling async-stream v0.3.4
[INFO] [stderr]    Compiling pin-project v1.0.12
[INFO] [stderr]    Compiling pathfinder_geometry v0.5.1
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling futures-executor v0.3.27
[INFO] [stderr]    Compiling tower v0.4.13
[INFO] [stderr]    Compiling futures v0.3.27
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling chrono v0.4.24
[INFO] [stderr]    Compiling query_map v0.6.0
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling http v0.2.9
[INFO] [stderr]    Compiling plotters v0.3.4
[INFO] [stderr]    Compiling http-body v0.4.5
[INFO] [stderr]    Compiling http-serde v1.1.2
[INFO] [stderr]    Compiling aws_lambda_events v0.7.3
[INFO] [stderr]    Compiling hyper v0.14.25
[INFO] [stderr]    Compiling tokio-stream v0.1.12
[INFO] [stderr]    Compiling lambda_runtime_api_client v0.7.0
[INFO] [stderr]    Compiling lambda_runtime v0.7.3
[INFO] [stderr]    Compiling lambda_http v0.7.3
[INFO] [stderr]    Compiling yo-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `RequestExt`
[INFO] [stdout]  --> src/main.rs:1:58
[INFO] [stdout]   |
[INFO] [stdout] 1 | use lambda_http::{run, service_fn, Body, Error, Request, RequestExt, Response};
[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: `serde_json`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `backend`
[INFO] [stdout]  --> src/plot.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |         let backend = SVGBackend::new("/tmp/5.svg", (640, 480));
[INFO] [stdout]   |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_backend`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     plot::run();
[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] 17 |     let _ = plot::run();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/plot.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         root.fill(&WHITE);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let _ = root.fill(&WHITE);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 50.77s
[INFO] running `Command { std: "docker" "inspect" "548c63e90b2d09777ea3762f88e419e71fa6588643319b824152cf986c20a0a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "548c63e90b2d09777ea3762f88e419e71fa6588643319b824152cf986c20a0a1" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling yo-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `RequestExt`
[INFO] [stdout]  --> src/main.rs:1:58
[INFO] [stdout]   |
[INFO] [stdout] 1 | use lambda_http::{run, service_fn, Body, Error, Request, RequestExt, Response};
[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: `serde_json`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `backend`
[INFO] [stdout]  --> src/plot.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |         let backend = SVGBackend::new("/tmp/5.svg", (640, 480));
[INFO] [stdout]   |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_backend`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     plot::run();
[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] 17 |     let _ = plot::run();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/plot.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         root.fill(&WHITE);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let _ = root.fill(&WHITE);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "548c63e90b2d09777ea3762f88e419e71fa6588643319b824152cf986c20a0a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "548c63e90b2d09777ea3762f88e419e71fa6588643319b824152cf986c20a0a1" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `RequestExt`
[INFO] [stderr]  --> src/main.rs:1:58
[INFO] [stderr]   |
[INFO] [stderr] 1 | use lambda_http::{run, service_fn, Body, Error, Request, RequestExt, Response};
[INFO] [stderr]   |                                                          ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde_json`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use serde_json;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `backend`
[INFO] [stderr]  --> src/plot.rs:8:13
[INFO] [stderr]   |
[INFO] [stderr] 8 |         let backend = SVGBackend::new("/tmp/5.svg", (640, 480));
[INFO] [stderr]   |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_backend`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     plot::run();
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let _ = plot::run();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/plot.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |         root.fill(&WHITE);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 12 |         let _ = root.fill(&WHITE);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `yo-rust` (bin "yo-rust" test) generated 5 warnings (run `cargo fix --bin "yo-rust" -p yo-rust --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/yo_rust-d1b4560b9ae88058)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "548c63e90b2d09777ea3762f88e419e71fa6588643319b824152cf986c20a0a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "548c63e90b2d09777ea3762f88e419e71fa6588643319b824152cf986c20a0a1", kill_on_drop: false }`
[INFO] [stdout] 548c63e90b2d09777ea3762f88e419e71fa6588643319b824152cf986c20a0a1
