[INFO] cloning repository https://github.com/shiMusa/Simple-Conrod
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shiMusa/Simple-Conrod" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FshiMusa%2FSimple-Conrod", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FshiMusa%2FSimple-Conrod'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4376f5dce5c7c19411fb40494e79a53616ea4b7a
[INFO] checking shiMusa/Simple-Conrod against master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FshiMusa%2FSimple-Conrod" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shiMusa/Simple-Conrod on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shiMusa/Simple-Conrod
[INFO] finished tweaking git repo https://github.com/shiMusa/Simple-Conrod
[INFO] tweaked toml for git repo https://github.com/shiMusa/Simple-Conrod written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/shiMusa/Simple-Conrod already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/PistonDevelopers/conrod.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wayland-scanner v0.12.5
[INFO] [stderr]   Downloaded dlib v0.4.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "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] b005e49c599f21467f8d08db2cff46dcbc636777f4dec4a187238607e5dfee2f
[INFO] running `Command { std: "docker" "start" "-a" "b005e49c599f21467f8d08db2cff46dcbc636777f4dec4a187238607e5dfee2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b005e49c599f21467f8d08db2cff46dcbc636777f4dec4a187238607e5dfee2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b005e49c599f21467f8d08db2cff46dcbc636777f4dec4a187238607e5dfee2f", kill_on_drop: false }`
[INFO] [stdout] b005e49c599f21467f8d08db2cff46dcbc636777f4dec4a187238607e5dfee2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] e6378ce90c6e1d7815760a78d2310c4ef615b5ab211d470632c5e0b19c693a5c
[INFO] running `Command { std: "docker" "start" "-a" "e6378ce90c6e1d7815760a78d2310c4ef615b5ab211d470632c5e0b19c693a5c", kill_on_drop: false }`
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[INFO] [stderr]     Checking conrod v0.57.0 (https://github.com/PistonDevelopers/conrod.git#db1372f1)
[INFO] [stderr]     Checking conrod_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `unused_doc_comment` has been renamed to `unused_doc_comments`
[INFO] [stdout]    --> src/lib.rs:454:13
[INFO] [stdout]     |
[INFO] [stdout] 454 |     #[allow(unused_doc_comment)]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^ help: use the new name: `unused_doc_comments`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `unused_doc_comment` has been renamed to `unused_doc_comments`
[INFO] [stdout]    --> src/lib.rs:454:13
[INFO] [stdout]     |
[INFO] [stdout] 454 |     #[allow(unused_doc_comment)]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^ help: use the new name: `unused_doc_comments`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(duration_extras)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(unboxed_closures)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(fn_traits)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(use_extern_macros)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(duration_extras)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(unboxed_closures)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(fn_traits)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(use_extern_macros)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elements/container.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 |     layers: Vec<Box<Element>>,
[INFO] [stdout]    |                     ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elements/container.rs:65:41
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn push(&mut self, element: Box<Element>) {
[INFO] [stdout]    |                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elements/container.rs:70:57
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn insert(&mut self, index: usize, element: Box<Element>) {
[INFO] [stdout]    |                                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elements/container.rs:79:41
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn pop(&mut self) -> Option<Box<Element>> {
[INFO] [stdout]    |                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elements/container.rs:83:51
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn remove(&mut self, index: usize) -> Box<Element> {
[INFO] [stdout]    |                                                   ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `i32` is imported redundantly
[INFO] [stdout]    --> src/elements/container.rs:158:13
[INFO] [stdout]     |
[INFO] [stdout] 4   | use elements::{*, action::*};
[INFO] [stdout]     |                - the item `i32` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 158 |         use std::i32;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/container.rs:222:23
[INFO] [stdout]     |
[INFO] [stdout] 222 |     elements: Vec<Box<Element>>,
[INFO] [stdout]     |                       ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/container.rs:249:41
[INFO] [stdout]     |
[INFO] [stdout] 249 |     pub fn push(&mut self, element: Box<Element>) {
[INFO] [stdout]     |                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/container.rs:254:57
[INFO] [stdout]     |
[INFO] [stdout] 254 |     pub fn insert(&mut self, index: usize, element: Box<Element>) {
[INFO] [stdout]     |                                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/container.rs:269:41
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub fn pop(&mut self) -> Option<Box<Element>> {
[INFO] [stdout]     |                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/container.rs:276:51
[INFO] [stdout]     |
[INFO] [stdout] 276 |     pub fn remove(&mut self, index: usize) -> Box<Element> {
[INFO] [stdout]     |                                                   ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/container.rs:486:18
[INFO] [stdout]     |
[INFO] [stdout] 486 |     element: Box<Element>,
[INFO] [stdout]     |                  ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/container.rs:503:29
[INFO] [stdout]     |
[INFO] [stdout] 503 |     pub fn new(element: Box<Element>, alignment: PadAlignment, size: PadElementSize) -> Box<Self> {
[INFO] [stdout]     |                             ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `i32` is imported redundantly
[INFO] [stdout]    --> src/elements/basic.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 7   | use elements::{*, action::*};
[INFO] [stdout]     |                - the item `i32` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 139 |         use std::i32;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/action.rs:166:22
[INFO] [stdout]     |
[INFO] [stdout] 166 |     pub element: Box<Animateable>,
[INFO] [stdout]     |                      ^^^^^^^^^^^ help: use `dyn`: `dyn Animateable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/action.rs:168:32
[INFO] [stdout]     |
[INFO] [stdout] 168 |     size_animation: Option<Box<SizeAnimation>>,
[INFO] [stdout]     |                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn SizeAnimation`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/action.rs:169:36
[INFO] [stdout]     |
[INFO] [stdout] 169 |     position_animation: Option<Box<PositionAnimation>>,
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn PositionAnimation`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/action.rs:179:29
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn new(element: Box<Animateable>) -> Box<Self> {
[INFO] [stdout]     |                             ^^^^^^^^^^^ help: use `dyn`: `dyn Animateable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/action.rs:200:57
[INFO] [stdout]     |
[INFO] [stdout] 200 |     pub fn with_size_animation(mut self, animation: Box<SizeAnimation>) -> Box<Self> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^ help: use `dyn`: `dyn SizeAnimation`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/action.rs:205:61
[INFO] [stdout]     |
[INFO] [stdout] 205 |     pub fn with_position_animation(mut self, animation: Box<PositionAnimation>) -> Box<Self> {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn PositionAnimation`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/action.rs:392:18
[INFO] [stdout]     |
[INFO] [stdout] 392 |     receive: Box<Fn(&mut E, ActionMsg)>,
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut E, ActionMsg)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/action.rs:408:51
[INFO] [stdout]     |
[INFO] [stdout] 408 |     pub fn with_action_receive(mut self, fun: Box<Fn(&mut E, ActionMsg)>) -> Box<Self> {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut E, ActionMsg)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/mod.rs:211:25
[INFO] [stdout]     |
[INFO] [stdout] 211 |     element: Option<Box<Element>>,
[INFO] [stdout]     |                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/mod.rs:256:48
[INFO] [stdout]     |
[INFO] [stdout] 256 |     pub fn add_element(&mut self, element: Box<Element>) {
[INFO] [stdout]     |                                                ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/composites/mod.rs:330:23
[INFO] [stdout]     |
[INFO] [stdout] 330 |     elements: Vec<Box<Element>>,
[INFO] [stdout]     |                       ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `i32` is imported redundantly
[INFO] [stdout]    --> src/composites/mod.rs:357:13
[INFO] [stdout]     |
[INFO] [stdout] 8   | use std::i32;
[INFO] [stdout]     |     -------- the item `i32` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 357 |         use std::i32;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/composites/mod.rs:415:41
[INFO] [stdout]     |
[INFO] [stdout] 415 |     pub fn push(&mut self, element: Box<Element>) {
[INFO] [stdout]     |                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/composites/mod.rs:420:57
[INFO] [stdout]     |
[INFO] [stdout] 420 |     pub fn insert(&mut self, index: usize, element: Box<Element>) {
[INFO] [stdout]     |                                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/composites/mod.rs:432:41
[INFO] [stdout]     |
[INFO] [stdout] 432 |     pub fn pop(&mut self) -> Option<Box<Element>> {
[INFO] [stdout]     |                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/composites/mod.rs:438:51
[INFO] [stdout]     |
[INFO] [stdout] 438 |     pub fn remove(&mut self, index: usize) -> Box<Element> {
[INFO] [stdout]     |                                                   ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `i32` is imported redundantly
[INFO] [stdout]    --> src/composites/mod.rs:463:13
[INFO] [stdout]     |
[INFO] [stdout] 8   | use std::i32;
[INFO] [stdout]     |     -------- the item `i32` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 463 |         use std::i32;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `thread` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 39 | use std::thread;
[INFO] [stdout]    |     ----------- the item `thread` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 46 |         use std::thread;
[INFO] [stdout]    |             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/lib.rs:455:5
[INFO] [stdout]     |
[INFO] [stdout] 455 | /     /** first the long animations, then the short ones.
[INFO] [stdout] 456 | |      * Otherwise, you could get flickering due to reset of
[INFO] [stdout] 457 | |      * inner animations while outer ones still running.
[INFO] [stdout] 458 | |      **/
[INFO] [stdout]     | |________^
[INFO] [stdout] 459 | /     let animation = Animation::new(pad)
[INFO] [stdout] 460 | |         .with_duration(500.0)
[INFO] [stdout] 461 | |         .with_size_animation(Box::new(AnimClick));
[INFO] [stdout]     | |__________________________________________________- rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elements/container.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 |     layers: Vec<Box<Element>>,
[INFO] [stdout]    |                     ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elements/container.rs:65:41
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn push(&mut self, element: Box<Element>) {
[INFO] [stdout]    |                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elements/container.rs:70:57
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn insert(&mut self, index: usize, element: Box<Element>) {
[INFO] [stdout]    |                                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elements/container.rs:79:41
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn pop(&mut self) -> Option<Box<Element>> {
[INFO] [stdout]    |                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elements/container.rs:83:51
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn remove(&mut self, index: usize) -> Box<Element> {
[INFO] [stdout]    |                                                   ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `i32` is imported redundantly
[INFO] [stdout]    --> src/elements/container.rs:158:13
[INFO] [stdout]     |
[INFO] [stdout] 4   | use elements::{*, action::*};
[INFO] [stdout]     |                - the item `i32` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 158 |         use std::i32;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/container.rs:222:23
[INFO] [stdout]     |
[INFO] [stdout] 222 |     elements: Vec<Box<Element>>,
[INFO] [stdout]     |                       ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/container.rs:249:41
[INFO] [stdout]     |
[INFO] [stdout] 249 |     pub fn push(&mut self, element: Box<Element>) {
[INFO] [stdout]     |                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/container.rs:254:57
[INFO] [stdout]     |
[INFO] [stdout] 254 |     pub fn insert(&mut self, index: usize, element: Box<Element>) {
[INFO] [stdout]     |                                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/container.rs:269:41
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub fn pop(&mut self) -> Option<Box<Element>> {
[INFO] [stdout]     |                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/container.rs:276:51
[INFO] [stdout]     |
[INFO] [stdout] 276 |     pub fn remove(&mut self, index: usize) -> Box<Element> {
[INFO] [stdout]     |                                                   ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/container.rs:486:18
[INFO] [stdout]     |
[INFO] [stdout] 486 |     element: Box<Element>,
[INFO] [stdout]     |                  ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/container.rs:503:29
[INFO] [stdout]     |
[INFO] [stdout] 503 |     pub fn new(element: Box<Element>, alignment: PadAlignment, size: PadElementSize) -> Box<Self> {
[INFO] [stdout]     |                             ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `i32` is imported redundantly
[INFO] [stdout]    --> src/elements/basic.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 7   | use elements::{*, action::*};
[INFO] [stdout]     |                - the item `i32` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 139 |         use std::i32;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/action.rs:166:22
[INFO] [stdout]     |
[INFO] [stdout] 166 |     pub element: Box<Animateable>,
[INFO] [stdout]     |                      ^^^^^^^^^^^ help: use `dyn`: `dyn Animateable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/action.rs:168:32
[INFO] [stdout]     |
[INFO] [stdout] 168 |     size_animation: Option<Box<SizeAnimation>>,
[INFO] [stdout]     |                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn SizeAnimation`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/action.rs:169:36
[INFO] [stdout]     |
[INFO] [stdout] 169 |     position_animation: Option<Box<PositionAnimation>>,
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn PositionAnimation`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/action.rs:179:29
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn new(element: Box<Animateable>) -> Box<Self> {
[INFO] [stdout]     |                             ^^^^^^^^^^^ help: use `dyn`: `dyn Animateable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/action.rs:200:57
[INFO] [stdout]     |
[INFO] [stdout] 200 |     pub fn with_size_animation(mut self, animation: Box<SizeAnimation>) -> Box<Self> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^ help: use `dyn`: `dyn SizeAnimation`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/action.rs:205:61
[INFO] [stdout]     |
[INFO] [stdout] 205 |     pub fn with_position_animation(mut self, animation: Box<PositionAnimation>) -> Box<Self> {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn PositionAnimation`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/action.rs:392:18
[INFO] [stdout]     |
[INFO] [stdout] 392 |     receive: Box<Fn(&mut E, ActionMsg)>,
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut E, ActionMsg)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/action.rs:408:51
[INFO] [stdout]     |
[INFO] [stdout] 408 |     pub fn with_action_receive(mut self, fun: Box<Fn(&mut E, ActionMsg)>) -> Box<Self> {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut E, ActionMsg)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/mod.rs:211:25
[INFO] [stdout]     |
[INFO] [stdout] 211 |     element: Option<Box<Element>>,
[INFO] [stdout]     |                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/elements/mod.rs:256:48
[INFO] [stdout]     |
[INFO] [stdout] 256 |     pub fn add_element(&mut self, element: Box<Element>) {
[INFO] [stdout]     |                                                ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/composites/mod.rs:330:23
[INFO] [stdout]     |
[INFO] [stdout] 330 |     elements: Vec<Box<Element>>,
[INFO] [stdout]     |                       ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `i32` is imported redundantly
[INFO] [stdout]    --> src/composites/mod.rs:357:13
[INFO] [stdout]     |
[INFO] [stdout] 8   | use std::i32;
[INFO] [stdout]     |     -------- the item `i32` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 357 |         use std::i32;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/composites/mod.rs:415:41
[INFO] [stdout]     |
[INFO] [stdout] 415 |     pub fn push(&mut self, element: Box<Element>) {
[INFO] [stdout]     |                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/composites/mod.rs:420:57
[INFO] [stdout]     |
[INFO] [stdout] 420 |     pub fn insert(&mut self, index: usize, element: Box<Element>) {
[INFO] [stdout]     |                                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/composites/mod.rs:432:41
[INFO] [stdout]     |
[INFO] [stdout] 432 |     pub fn pop(&mut self) -> Option<Box<Element>> {
[INFO] [stdout]     |                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/composites/mod.rs:438:51
[INFO] [stdout]     |
[INFO] [stdout] 438 |     pub fn remove(&mut self, index: usize) -> Box<Element> {
[INFO] [stdout]     |                                                   ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `i32` is imported redundantly
[INFO] [stdout]    --> src/composites/mod.rs:463:13
[INFO] [stdout]     |
[INFO] [stdout] 8   | use std::i32;
[INFO] [stdout]     |     -------- the item `i32` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 463 |         use std::i32;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `thread` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 39 | use std::thread;
[INFO] [stdout]    |     ----------- the item `thread` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 46 |         use std::thread;
[INFO] [stdout]    |             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/lib.rs:455:5
[INFO] [stdout]     |
[INFO] [stdout] 455 | /     /** first the long animations, then the short ones.
[INFO] [stdout] 456 | |      * Otherwise, you could get flickering due to reset of
[INFO] [stdout] 457 | |      * inner animations while outer ones still running.
[INFO] [stdout] 458 | |      **/
[INFO] [stdout]     | |________^
[INFO] [stdout] 459 | /     let animation = Animation::new(pad)
[INFO] [stdout] 460 | |         .with_duration(500.0)
[INFO] [stdout] 461 | |         .with_size_animation(Box::new(AnimClick));
[INFO] [stdout]     | |__________________________________________________- rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 34 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `conrod_test`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 4 previous errors; 34 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e6378ce90c6e1d7815760a78d2310c4ef615b5ab211d470632c5e0b19c693a5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6378ce90c6e1d7815760a78d2310c4ef615b5ab211d470632c5e0b19c693a5c", kill_on_drop: false }`
[INFO] [stdout] e6378ce90c6e1d7815760a78d2310c4ef615b5ab211d470632c5e0b19c693a5c
