[INFO] cloning repository https://github.com/YohananDiamond/penrose-config
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/YohananDiamond/penrose-config" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYohananDiamond%2Fpenrose-config", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYohananDiamond%2Fpenrose-config'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 63cf9bbbc228ea269d0415d9a056244ff99124c7
[INFO] testing YohananDiamond/penrose-config against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYohananDiamond%2Fpenrose-config" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/YohananDiamond/penrose-config on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/YohananDiamond/penrose-config
[INFO] finished tweaking git repo https://github.com/YohananDiamond/penrose-config
[INFO] tweaked toml for git repo https://github.com/YohananDiamond/penrose-config written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/YohananDiamond/penrose-config already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12a3bdb55c6dc6d1e7ca84940919d60c922f1d81467bb61d0d1cce9cf8716b51
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "12a3bdb55c6dc6d1e7ca84940919d60c922f1d81467bb61d0d1cce9cf8716b51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12a3bdb55c6dc6d1e7ca84940919d60c922f1d81467bb61d0d1cce9cf8716b51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12a3bdb55c6dc6d1e7ca84940919d60c922f1d81467bb61d0d1cce9cf8716b51", kill_on_drop: false }`
[INFO] [stdout] 12a3bdb55c6dc6d1e7ca84940919d60c922f1d81467bb61d0d1cce9cf8716b51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9620edc2edfe34e4f518e8aff0a9dac9ac3443718f844a8ea2aae7046280e70
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a9620edc2edfe34e4f518e8aff0a9dac9ac3443718f844a8ea2aae7046280e70", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling cairo-rs v0.9.1
[INFO] [stderr]    Compiling pango v0.9.1
[INFO] [stderr]    Compiling pangocairo v0.10.0
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]    Compiling chrono v0.4.15
[INFO] [stderr]    Compiling simplelog v0.8.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling glib-macros v0.10.1
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]    Compiling system-deps v1.3.2
[INFO] [stderr]    Compiling pin-project v0.4.23
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling glib-sys v0.10.0
[INFO] [stderr]    Compiling gobject-sys v0.10.0
[INFO] [stderr]    Compiling pango-sys v0.10.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.10.0
[INFO] [stderr]    Compiling pangocairo-sys v0.11.0
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling glib v0.10.1
[INFO] [stderr]    Compiling penrose v0.1.9 (https://github.com/sminez/penrose?branch=develop#dda12090)
[INFO] [stderr]    Compiling penrose-config v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `penrose::client::Client`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use penrose::client::Client;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DefaultWorkspace`, `LayoutSymbolAsRootName`
[INFO] [stdout]   --> src/main.rs:10:31
[INFO] [stdout]    |
[INFO] [stdout] 10 | use penrose::contrib::hooks::{DefaultWorkspace, LayoutSymbolAsRootName};
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `penrose::contrib::layouts::paper`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use penrose::contrib::layouts::paper;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/misc.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | / macro_rules! get_x_color {
[INFO] [stdout] 27 | |     ($name:expr, $fallback:expr) => {
[INFO] [stdout] 28 | |         parse_hex_color(&get_x_resource($name).unwrap_or($fallback.to_string()))
[INFO] [stdout] 29 | |             .unwrap_or_else(|| parse_hex_color($fallback).unwrap())
[INFO] [stdout] 30 | |     };
[INFO] [stdout] 31 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]  --> src/misc.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |         Err(e) => return None,
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_x_resource`
[INFO] [stdout]  --> src/misc.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn get_x_resource(resource_name: &str) -> Option<String> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_hex_color`
[INFO] [stdout]   --> src/misc.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn parse_hex_color(color: &str) -> Option<u32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PURPLE`
[INFO] [stdout]    --> src/main.rs:155:1
[INFO] [stdout]     |
[INFO] [stdout] 155 | const PURPLE: u32 = 0xb16286;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `RED`
[INFO] [stdout]    --> src/main.rs:157:1
[INFO] [stdout]     |
[INFO] [stdout] 157 | const RED: u32 = 0xcc241d;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 45s
[INFO] running `Command { std: "docker" "inspect" "a9620edc2edfe34e4f518e8aff0a9dac9ac3443718f844a8ea2aae7046280e70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9620edc2edfe34e4f518e8aff0a9dac9ac3443718f844a8ea2aae7046280e70", kill_on_drop: false }`
[INFO] [stdout] a9620edc2edfe34e4f518e8aff0a9dac9ac3443718f844a8ea2aae7046280e70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8213f92fd7245bbe4d17021a2b6246f6b2e9e29119c2bba07b5bcf2880f9ad7d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8213f92fd7245bbe4d17021a2b6246f6b2e9e29119c2bba07b5bcf2880f9ad7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling penrose-config v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `penrose::client::Client`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use penrose::client::Client;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DefaultWorkspace`, `LayoutSymbolAsRootName`
[INFO] [stdout]   --> src/main.rs:10:31
[INFO] [stdout]    |
[INFO] [stdout] 10 | use penrose::contrib::hooks::{DefaultWorkspace, LayoutSymbolAsRootName};
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `penrose::contrib::layouts::paper`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use penrose::contrib::layouts::paper;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/misc.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | / macro_rules! get_x_color {
[INFO] [stdout] 27 | |     ($name:expr, $fallback:expr) => {
[INFO] [stdout] 28 | |         parse_hex_color(&get_x_resource($name).unwrap_or($fallback.to_string()))
[INFO] [stdout] 29 | |             .unwrap_or_else(|| parse_hex_color($fallback).unwrap())
[INFO] [stdout] 30 | |     };
[INFO] [stdout] 31 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]  --> src/misc.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |         Err(e) => return None,
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_x_resource`
[INFO] [stdout]  --> src/misc.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn get_x_resource(resource_name: &str) -> Option<String> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_hex_color`
[INFO] [stdout]   --> src/misc.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn parse_hex_color(color: &str) -> Option<u32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PURPLE`
[INFO] [stdout]    --> src/main.rs:155:1
[INFO] [stdout]     |
[INFO] [stdout] 155 | const PURPLE: u32 = 0xb16286;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `RED`
[INFO] [stdout]    --> src/main.rs:157:1
[INFO] [stdout]     |
[INFO] [stdout] 157 | const RED: u32 = 0xcc241d;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "8213f92fd7245bbe4d17021a2b6246f6b2e9e29119c2bba07b5bcf2880f9ad7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8213f92fd7245bbe4d17021a2b6246f6b2e9e29119c2bba07b5bcf2880f9ad7d", kill_on_drop: false }`
[INFO] [stdout] 8213f92fd7245bbe4d17021a2b6246f6b2e9e29119c2bba07b5bcf2880f9ad7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d0b4c56d8e5e0d868cb8875e85dfabdb2505489b2511f0d5d020564d7e9308fc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d0b4c56d8e5e0d868cb8875e85dfabdb2505489b2511f0d5d020564d7e9308fc", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `penrose::client::Client`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use penrose::client::Client;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `DefaultWorkspace`, `LayoutSymbolAsRootName`
[INFO] [stderr]   --> src/main.rs:10:31
[INFO] [stderr]    |
[INFO] [stderr] 10 | use penrose::contrib::hooks::{DefaultWorkspace, LayoutSymbolAsRootName};
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `penrose::contrib::layouts::paper`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use penrose::contrib::layouts::paper;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/misc.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | / macro_rules! get_x_color {
[INFO] [stderr] 27 | |     ($name:expr, $fallback:expr) => {
[INFO] [stderr] 28 | |         parse_hex_color(&get_x_resource($name).unwrap_or($fallback.to_string()))
[INFO] [stderr] 29 | |             .unwrap_or_else(|| parse_hex_color($fallback).unwrap())
[INFO] [stderr] 30 | |     };
[INFO] [stderr] 31 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]  --> src/misc.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 |         Err(e) => return None,
[INFO] [stderr]   |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_x_resource`
[INFO] [stderr]  --> src/misc.rs:3:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn get_x_resource(resource_name: &str) -> Option<String> {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_hex_color`
[INFO] [stderr]   --> src/misc.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn parse_hex_color(color: &str) -> Option<u32> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `PURPLE`
[INFO] [stderr]    --> src/main.rs:155:1
[INFO] [stderr]     |
[INFO] [stderr] 155 | const PURPLE: u32 = 0xb16286;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `RED`
[INFO] [stderr]    --> src/main.rs:157:1
[INFO] [stderr]     |
[INFO] [stderr] 157 | const RED: u32 = 0xcc241d;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/penrose_main-8eb3a173c6966152
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d0b4c56d8e5e0d868cb8875e85dfabdb2505489b2511f0d5d020564d7e9308fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0b4c56d8e5e0d868cb8875e85dfabdb2505489b2511f0d5d020564d7e9308fc", kill_on_drop: false }`
[INFO] [stdout] d0b4c56d8e5e0d868cb8875e85dfabdb2505489b2511f0d5d020564d7e9308fc
