[INFO] cloning repository https://github.com/covercash2/germ
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/covercash2/germ" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcovercash2%2Fgerm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcovercash2%2Fgerm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a27e564d41bddaf9f16bd75456e1f1693443c0f
[INFO] building covercash2/germ against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcovercash2%2Fgerm" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/covercash2/germ on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/covercash2/germ
[INFO] finished tweaking git repo https://github.com/covercash2/germ
[INFO] tweaked toml for git repo https://github.com/covercash2/germ written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/covercash2/germ already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smallvec v0.6.3
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[INFO] [stderr]   Downloaded gleam v0.5.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 171644689d0b088c857f843d7de7acdd5d727b0d5456ed30e921621c04a3f9cb
[INFO] running `Command { std: "docker" "start" "-a" "171644689d0b088c857f843d7de7acdd5d727b0d5456ed30e921621c04a3f9cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "171644689d0b088c857f843d7de7acdd5d727b0d5456ed30e921621c04a3f9cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "171644689d0b088c857f843d7de7acdd5d727b0d5456ed30e921621c04a3f9cb", kill_on_drop: false }`
[INFO] [stdout] 171644689d0b088c857f843d7de7acdd5d727b0d5456ed30e921621c04a3f9cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2abc54d998e8718a237f4599a570d832dac26fa1eb36d6f74eefcf5c08e03382
[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" "2abc54d998e8718a237f4599a570d832dac26fa1eb36d6f74eefcf5c08e03382", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v1.0.1
[INFO] [stderr]    Compiling byteorder v1.2.3
[INFO] [stderr]    Compiling token_store v0.1.2
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling stable_deref_trait v1.1.0
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling piston-float v0.3.0
[INFO] [stderr]    Compiling find_folder v0.3.0
[INFO] [stderr]    Compiling glib-sys v0.7.0
[INFO] [stderr]    Compiling gobject-sys v0.7.0
[INFO] [stderr]    Compiling gio-sys v0.7.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.7.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.7.0
[INFO] [stderr]    Compiling pango-sys v0.7.0
[INFO] [stderr]    Compiling gdk-sys v0.7.0
[INFO] [stderr]    Compiling x11-dl v2.18.1
[INFO] [stderr]    Compiling atk-sys v0.7.0
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.4
[INFO] [stderr]    Compiling gtk-sys v0.7.0
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling khronos_api v2.2.0
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[INFO] [stderr]    Compiling owning_ref v0.3.3
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[INFO] [stderr]    Compiling piston-viewport v0.3.0
[INFO] [stderr]    Compiling petgraph v0.4.12
[INFO] [stderr]    Compiling stb_truetype v0.2.2
[INFO] [stderr]    Compiling smallvec v0.6.3
[INFO] [stderr]    Compiling bytes v0.4.8
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling approx v0.2.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling toml v0.4.6
[INFO] [stderr]    Compiling ordered-float v0.5.0
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.3
[INFO] [stderr]    Compiling expat-sys v2.1.5
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling backtrace v0.3.8
[INFO] [stderr]    Compiling wayland-scanner v0.12.5
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling wayland-scanner v0.20.10
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling tempfile v3.0.2
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling rusttype v0.5.2
[INFO] [stderr]    Compiling rusttype v0.6.1
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling gio v0.5.1
[INFO] [stderr]    Compiling cairo-rs v0.5.0
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling daggy v0.5.0
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]    Compiling gdk-pixbuf v0.5.0
[INFO] [stderr]    Compiling parking_lot v0.5.5
[INFO] [stderr]    Compiling wayland-sys v0.12.5
[INFO] [stderr]    Compiling wayland-sys v0.20.10
[INFO] [stderr]    Compiling gdk v0.9.0
[INFO] [stderr]    Compiling wayland-client v0.12.5
[INFO] [stderr]    Compiling wayland-protocols v0.12.5
[INFO] [stderr]    Compiling gtk v0.5.0
[INFO] [stderr]    Compiling glib v0.6.0
[INFO] [stderr]    Compiling wayland-client v0.20.10
[INFO] [stderr]    Compiling wayland-protocols v0.20.10
[INFO] [stderr]    Compiling servo-fontconfig v0.4.0
[INFO] [stderr]    Compiling wayland-commons v0.20.10
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling glutin v0.14.0
[INFO] [stderr]    Compiling glium v0.21.0
[INFO] [stderr]    Compiling glutin v0.16.0
[INFO] [stderr]    Compiling font-loader v0.7.0
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling serde_derive v1.0.66
[INFO] [stderr]    Compiling wayland-kbd v0.13.1
[INFO] [stderr]    Compiling pango v0.5.0
[INFO] [stderr]    Compiling wayland-window v0.13.3
[INFO] [stderr]    Compiling smithay-client-toolkit v0.2.2
[INFO] [stderr]    Compiling winit v0.12.0
[INFO] [stderr]    Compiling conrod_derive v0.1.2
[INFO] [stderr]    Compiling winit v0.15.0
[INFO] [stderr]    Compiling pistoncore-input v0.21.0
[INFO] [stderr]    Compiling conrod v0.60.0
[INFO] [stderr]    Compiling germ v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Event`
[INFO] [stdout]  --> src/app/mod.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ui::{Event, Ui};
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Instant`
[INFO] [stdout]  --> src/app/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::time::Instant;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]    --> src/ui/backend/conrod/mod.rs:236:9
[INFO] [stdout]     |
[INFO] [stdout] 236 |         'main: loop {
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/ui/backend/gtk/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/ui/backend/gtk/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/ui/backend/gtk/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::mpsc::Receiver`
[INFO] [stdout]  --> src/ui/backend/gtk/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::mpsc::Receiver;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures`
[INFO] [stdout]  --> src/ui/backend/gtk/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/ui/backend/gtk/mod.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | / macro_rules! clone {
[INFO] [stdout] 24 | |     (@param _) => ( _ );
[INFO] [stdout] 25 | |     (@param $x:ident) => ( $x );
[INFO] [stdout] 26 | |     ($($n:ident),+ => move || $body:expr) => (
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |     );
[INFO] [stdout] 38 | | }
[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/stream/mod.rs:55:30
[INFO] [stdout]    |
[INFO] [stdout] 55 |                     Some(Err(e)) => {
[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: unused variable: `e`
[INFO] [stdout]   --> src/stream/mod.rs:76:17
[INFO] [stdout]    |
[INFO] [stdout] 76 |             Err(e) => {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `title`
[INFO] [stdout]   --> src/ui/backend/gtk/mod.rs:94:19
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn create(title: String, dimensions: [i32; 2]) -> Result<Gtk, glib::BoolError> {
[INFO] [stdout]    |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_title`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dimensions`
[INFO] [stdout]   --> src/ui/backend/gtk/mod.rs:94:34
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn create(title: String, dimensions: [i32; 2]) -> Result<Gtk, glib::BoolError> {
[INFO] [stdout]    |                                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dimensions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]    --> src/ui/backend/gtk/mod.rs:138:25
[INFO] [stdout]     |
[INFO] [stdout] 138 |                 let mut buffer = view.get_buffer().expect("couldn't get input text buffer");
[INFO] [stdout]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer_clone`
[INFO] [stdout]    --> src/ui/backend/gtk/mod.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |         let buffer_clone = buffer.clone();
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer_clone`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ui/backend/gtk/mod.rs:138:21
[INFO] [stdout]     |
[INFO] [stdout] 138 |                 let mut buffer = view.get_buffer().expect("couldn't get input text buffer");
[INFO] [stdout]     |                     ----^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ui/backend/gtk/mod.rs:102:24
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn show(&mut self, mut shell: Shell) -> Result<(), Self::Error> {
[INFO] [stdout]     |                        ----^^^^^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Error`
[INFO] [stdout]  --> src/app/mod.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | type Error = String;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `App`
[INFO] [stdout]  --> src/app/mod.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct App<U: Ui> {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/app/mod.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn new(shell: Shell, ui: U) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `exit`
[INFO] [stdout]   --> src/app/mod.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn exit(self) -> Result<(), Error> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DEFAULT_FONT`
[INFO] [stdout]  --> src/constants.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const DEFAULT_FONT: &'static str = "Andale Mono";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DEFAULT_DIMENSIONS`
[INFO] [stdout]  --> src/constants.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub const DEFAULT_DIMENSIONS: [u32; 2] = [480, 800];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DEFAULT_TITLE`
[INFO] [stdout]  --> src/constants.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const DEFAULT_TITLE: &'static str = "germ";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `child`
[INFO] [stdout]   --> src/shell/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     child: Child,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stderr`
[INFO] [stdout]   --> src/shell/mod.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     stderr: stream::LockByteStream,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `exit`
[INFO] [stdout]   --> src/shell/mod.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn exit(&mut self) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Stop`
[INFO] [stdout]   --> src/stream/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Stop,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `thread_handle`
[INFO] [stdout]   --> src/stream/mod.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     thread_handle: JoinHandle<io::Result<()>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `signal_sender`
[INFO] [stdout]   --> src/stream/mod.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     signal_sender: Sender<Signal>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `stop`
[INFO] [stdout]   --> src/stream/mod.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn stop(&self) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `thread_handle`
[INFO] [stdout]    --> src/stream/mod.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     thread_handle: JoinHandle<io::Result<()>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `send_buffer`
[INFO] [stdout]    --> src/stream/mod.rs:165:12
[INFO] [stdout]     |
[INFO] [stdout] 165 |     pub fn send_buffer(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `close`
[INFO] [stdout]    --> src/stream/mod.rs:169:12
[INFO] [stdout]     |
[INFO] [stdout] 169 |     pub fn close(self) -> ::std::thread::Result<io::Result<()>> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `debug_error`
[INFO] [stdout]    --> src/stream/mod.rs:192:4
[INFO] [stdout]     |
[INFO] [stdout] 192 | fn debug_error<T>(msg: &'static str) -> io::Result<T> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/ui/backend/conrod/text.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn new(widget_id: widget::Id, parent_id: widget::Id, editable: bool) -> Text {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/ui/backend/conrod/mod.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn new(font_family: String, vsync: bool) -> Result<Self, String> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `destroy_default_context`
[INFO] [stdout]   --> src/ui/backend/gtk/mod.rs:80:4
[INFO] [stdout]    |
[INFO] [stdout] 80 | fn destroy_default_context() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `load_font`
[INFO] [stdout]   --> src/ui/mod.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn load_font(family: &str) -> Result<Vec<u8>, String> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `const_str_as_bytes`
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_str_as_bytes)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/config/mod.rs:55:30
[INFO] [stdout]    |
[INFO] [stdout] 55 |             Err(e) => panic!(format!("could not load default config:\n{}", e)),
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 55 |             Err(e) => panic!("could not load default config:\n{}", e),
[INFO] [stdout]    |                             --                                     --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/ui/backend/gtk/mod.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |             context.shell.exit();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 41 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `germ`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "2abc54d998e8718a237f4599a570d832dac26fa1eb36d6f74eefcf5c08e03382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2abc54d998e8718a237f4599a570d832dac26fa1eb36d6f74eefcf5c08e03382", kill_on_drop: false }`
[INFO] [stdout] 2abc54d998e8718a237f4599a570d832dac26fa1eb36d6f74eefcf5c08e03382
