[INFO] cloning repository https://github.com/AlvesDario/counter_app
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlvesDario/counter_app" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlvesDario%2Fcounter_app", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlvesDario%2Fcounter_app'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e957fb0e2afb6df0a46e2b82569265f3bdc81023
[INFO] testing AlvesDario/counter_app against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlvesDario%2Fcounter_app" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AlvesDario/counter_app
[INFO] finished tweaking git repo https://github.com/AlvesDario/counter_app
[INFO] tweaked toml for git repo https://github.com/AlvesDario/counter_app written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AlvesDario/counter_app on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AlvesDario/counter_app 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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] ccf9ec426191ef7382d6b0cc2f82e16a32652df67e50d25eb90cf08f042a0daa
[INFO] running `Command { std: "docker" "start" "-a" "ccf9ec426191ef7382d6b0cc2f82e16a32652df67e50d25eb90cf08f042a0daa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccf9ec426191ef7382d6b0cc2f82e16a32652df67e50d25eb90cf08f042a0daa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccf9ec426191ef7382d6b0cc2f82e16a32652df67e50d25eb90cf08f042a0daa", kill_on_drop: false }`
[INFO] [stdout] ccf9ec426191ef7382d6b0cc2f82e16a32652df67e50d25eb90cf08f042a0daa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] c6207e2fc86deef7e00ca3b79b4dc6f4e72959a971e61a088caf20ab8b24223f
[INFO] running `Command { std: "docker" "start" "-a" "c6207e2fc86deef7e00ca3b79b4dc6f4e72959a971e61a088caf20ab8b24223f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
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[INFO] [stderr]    Compiling thiserror v1.0.58
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[INFO] [stderr]    Compiling futures-channel v0.3.30
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[INFO] [stderr]    Compiling cairo-sys-rs v0.20.0 (https://github.com/gtk-rs/gtk-rs-core?branch=master#c73784d2)
[INFO] [stderr]    Compiling pango-sys v0.20.0 (https://github.com/gtk-rs/gtk-rs-core?branch=master#c73784d2)
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[INFO] [stderr]    Compiling gsk4-sys v0.8.1
[INFO] [stderr]    Compiling gdk4-sys v0.9.0 (https://github.com/gtk-rs/gtk4-rs.git#81f33e3b)
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[INFO] [stderr]    Compiling gdk4-wayland-sys v0.9.0 (https://github.com/gtk-rs/gtk4-rs.git#81f33e3b)
[INFO] [stderr]    Compiling glib v0.19.3
[INFO] [stderr]    Compiling glib v0.20.0 (https://github.com/gtk-rs/gtk-rs-core?branch=master#c73784d2)
[INFO] [stderr]    Compiling cairo-rs v0.19.2
[INFO] [stderr]    Compiling graphene-rs v0.19.2
[INFO] [stderr]    Compiling cairo-rs v0.20.0 (https://github.com/gtk-rs/gtk-rs-core?branch=master#c73784d2)
[INFO] [stderr]    Compiling pango v0.19.3
[INFO] [stderr]    Compiling gdk-pixbuf v0.19.2
[INFO] [stderr]    Compiling gdk4 v0.8.1
[INFO] [stderr]    Compiling gdk-pixbuf v0.20.0 (https://github.com/gtk-rs/gtk-rs-core?branch=master#c73784d2)
[INFO] [stderr]    Compiling pango v0.20.0 (https://github.com/gtk-rs/gtk-rs-core?branch=master#c73784d2)
[INFO] [stderr]    Compiling gdk4 v0.9.0 (https://github.com/gtk-rs/gtk4-rs.git#81f33e3b)
[INFO] [stderr]    Compiling gsk4 v0.8.1
[INFO] [stderr]    Compiling gtk4 v0.8.1
[INFO] [stderr]    Compiling gdk4-wayland v0.9.0 (https://github.com/gtk-rs/gtk4-rs.git#81f33e3b)
[INFO] [stderr]    Compiling counterapp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Counter` is never constructed
[INFO] [stdout]  --> src/model/counter.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Counter {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `counter_widget` are never used
[INFO] [stdout]   --> src/model/counter.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Counter {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 10 |     pub fn new(name: &str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn counter_widget(&self) -> Box {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CounterComponent` is never constructed
[INFO] [stdout]   --> src/model/counter.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct CounterComponent {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `counter_body`, `counter_header`, `increase_button`, and `decrease_button` are never used
[INFO] [stdout]   --> src/model/counter.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl CounterComponent {
[INFO] [stdout]    | --------------------- associated items in this implementation
[INFO] [stdout] 54 |     pub fn new(counter: &Counter) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn counter_body(&self) -> gtk::Box {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75 |     fn counter_header(name: &str) -> gtk::Box {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     fn increase_button() -> gtk::Button {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     fn decrease_button() -> gtk::Button {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `empty_space` is never used
[INFO] [stdout]   --> src/model/counter.rs:93:4
[INFO] [stdout]    |
[INFO] [stdout] 93 | fn empty_space(orientation: gtk::Orientation) -> gtk::Box {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 04s
[INFO] running `Command { std: "docker" "inspect" "c6207e2fc86deef7e00ca3b79b4dc6f4e72959a971e61a088caf20ab8b24223f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6207e2fc86deef7e00ca3b79b4dc6f4e72959a971e61a088caf20ab8b24223f", kill_on_drop: false }`
[INFO] [stdout] c6207e2fc86deef7e00ca3b79b4dc6f4e72959a971e61a088caf20ab8b24223f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 1cea768c93f86ccaec198c7b21d46469c4d0fdf730d9e7b696da2fa3a038036f
[INFO] running `Command { std: "docker" "start" "-a" "1cea768c93f86ccaec198c7b21d46469c4d0fdf730d9e7b696da2fa3a038036f", kill_on_drop: false }`
[INFO] [stdout] warning: struct `Counter` is never constructed
[INFO] [stdout]  --> src/model/counter.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Counter {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `counter_widget` are never used
[INFO] [stdout]   --> src/model/counter.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Counter {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 10 |     pub fn new(name: &str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn counter_widget(&self) -> Box {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CounterComponent` is never constructed
[INFO] [stdout]   --> src/model/counter.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct CounterComponent {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `counter_body`, `counter_header`, `increase_button`, and `decrease_button` are never used
[INFO] [stdout]   --> src/model/counter.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl CounterComponent {
[INFO] [stdout]    | --------------------- associated items in this implementation
[INFO] [stdout] 54 |     pub fn new(counter: &Counter) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn counter_body(&self) -> gtk::Box {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75 |     fn counter_header(name: &str) -> gtk::Box {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     fn increase_button() -> gtk::Button {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     fn decrease_button() -> gtk::Button {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `empty_space` is never used
[INFO] [stdout]   --> src/model/counter.rs:93:4
[INFO] [stdout]    |
[INFO] [stdout] 93 | fn empty_space(orientation: gtk::Orientation) -> gtk::Box {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling counterapp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Counter` is never constructed
[INFO] [stdout]  --> src/model/counter.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Counter {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `counter_widget` are never used
[INFO] [stdout]   --> src/model/counter.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Counter {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 10 |     pub fn new(name: &str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn counter_widget(&self) -> Box {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CounterComponent` is never constructed
[INFO] [stdout]   --> src/model/counter.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct CounterComponent {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `counter_body`, `counter_header`, `increase_button`, and `decrease_button` are never used
[INFO] [stdout]   --> src/model/counter.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl CounterComponent {
[INFO] [stdout]    | --------------------- associated items in this implementation
[INFO] [stdout] 54 |     pub fn new(counter: &Counter) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn counter_body(&self) -> gtk::Box {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75 |     fn counter_header(name: &str) -> gtk::Box {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     fn increase_button() -> gtk::Button {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     fn decrease_button() -> gtk::Button {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `empty_space` is never used
[INFO] [stdout]   --> src/model/counter.rs:93:4
[INFO] [stdout]    |
[INFO] [stdout] 93 | fn empty_space(orientation: gtk::Orientation) -> gtk::Box {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "1cea768c93f86ccaec198c7b21d46469c4d0fdf730d9e7b696da2fa3a038036f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cea768c93f86ccaec198c7b21d46469c4d0fdf730d9e7b696da2fa3a038036f", kill_on_drop: false }`
[INFO] [stdout] 1cea768c93f86ccaec198c7b21d46469c4d0fdf730d9e7b696da2fa3a038036f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 5ceb3983fbb6cb484c43a377f5fdc8d1f3ff390c8b4eb1283909806e330d399b
[INFO] running `Command { std: "docker" "start" "-a" "5ceb3983fbb6cb484c43a377f5fdc8d1f3ff390c8b4eb1283909806e330d399b", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Counter` is never constructed
[INFO] [stderr]  --> src/model/counter.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Counter {
[INFO] [stderr]   |            ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `counter_widget` are never used
[INFO] [stderr]   --> src/model/counter.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr]  9 | impl Counter {
[INFO] [stderr]    | ------------ associated items in this implementation
[INFO] [stderr] 10 |     pub fn new(name: &str) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 17 |     pub fn counter_widget(&self) -> Box {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `CounterComponent` is never constructed
[INFO] [stderr]   --> src/model/counter.rs:46:8
[INFO] [stderr]    |
[INFO] [stderr] 46 | struct CounterComponent {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `counter_body`, `counter_header`, `increase_button`, and `decrease_button` are never used
[INFO] [stderr]   --> src/model/counter.rs:54:12
[INFO] [stderr]    |
[INFO] [stderr] 53 | impl CounterComponent {
[INFO] [stderr]    | --------------------- associated items in this implementation
[INFO] [stderr] 54 |     pub fn new(counter: &Counter) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 63 |     pub fn counter_body(&self) -> gtk::Box {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 75 |     fn counter_header(name: &str) -> gtk::Box {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 83 |     fn increase_button() -> gtk::Button {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 87 |     fn decrease_button() -> gtk::Button {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `empty_space` is never used
[INFO] [stderr]   --> src/model/counter.rs:93:4
[INFO] [stderr]    |
[INFO] [stderr] 93 | fn empty_space(orientation: gtk::Orientation) -> gtk::Box {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `counterapp` (lib) generated 5 warnings
[INFO] [stderr] warning: `counterapp` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/counterapp/ab423c76e4d0c6ac/deps/counterapp-ab423c76e4d0c6ac)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/build/counterapp/3b5681ab3adb3b36/deps/counterapp-3b5681ab3adb3b36)
[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] [stderr]    Doc-tests counterapp
[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" "5ceb3983fbb6cb484c43a377f5fdc8d1f3ff390c8b4eb1283909806e330d399b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ceb3983fbb6cb484c43a377f5fdc8d1f3ff390c8b4eb1283909806e330d399b", kill_on_drop: false }`
[INFO] [stdout] 5ceb3983fbb6cb484c43a377f5fdc8d1f3ff390c8b4eb1283909806e330d399b
