[INFO] cloning repository https://github.com/michaeljones/mango
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/michaeljones/mango" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaeljones%2Fmango", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaeljones%2Fmango'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4e6cd39c5c1dd481d2d8d99e13083017ce6bc683
[INFO] testing michaeljones/mango against 1.75.0 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaeljones%2Fmango" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/michaeljones/mango on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/michaeljones/mango
[INFO] finished tweaking git repo https://github.com/michaeljones/mango
[INFO] tweaked toml for git repo https://github.com/michaeljones/mango written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/michaeljones/mango already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 286215864a20fc849f23f1cc6a7a3cb64100788dc636d1c4c7aa474d7e5c89cb
[INFO] running `Command { std: "docker" "start" "-a" "286215864a20fc849f23f1cc6a7a3cb64100788dc636d1c4c7aa474d7e5c89cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "286215864a20fc849f23f1cc6a7a3cb64100788dc636d1c4c7aa474d7e5c89cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "286215864a20fc849f23f1cc6a7a3cb64100788dc636d1c4c7aa474d7e5c89cb", kill_on_drop: false }`
[INFO] [stdout] 286215864a20fc849f23f1cc6a7a3cb64100788dc636d1c4c7aa474d7e5c89cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33d3885494e3085097933e69b7de3257210ae954bf29c58ed727fda2cda31e89
[INFO] running `Command { std: "docker" "start" "-a" "33d3885494e3085097933e69b7de3257210ae954bf29c58ed727fda2cda31e89", kill_on_drop: false }`
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[INFO] [stderr]    Compiling serde v1.0.27
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling smallvec v0.4.4
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling num v0.1.41
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[INFO] [stderr]    Compiling atty v0.2.6
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling ansi_term v0.10.2
[INFO] [stderr]    Compiling yaml-rust v0.4.0
[INFO] [stderr]    Compiling clap v2.29.0
[INFO] [stderr]    Compiling json v0.11.12
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]    Compiling dlib v0.3.1
[INFO] [stderr]    Compiling wayland-sys v0.9.10
[INFO] [stderr]    Compiling pistoncore-input v0.20.0
[INFO] [stderr]    Compiling backtrace v0.3.4
[INFO] [stderr]    Compiling conrod v0.57.0
[INFO] [stderr]    Compiling mango v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/commands.rs:15:27
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn execute(&mut self, &mut Params);
[INFO] [stdout]    |                           ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut Params`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/standard_out.rs:15:34
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/lines.rs:15:34
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/string_contains.rs:19:34
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/json_parse.rs:17:34
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/json_stringify.rs:17:34
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/json_keys.rs:15:34
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/json_object.rs:17:39
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub keys_input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub keys_input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/json_object.rs:18:41
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub values_input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub values_input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/to_int.rs:15:34
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/sum.rs:15:34
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:90:27
[INFO] [stdout]    |
[INFO] [stdout] 90 | type NodeRef = Rc<RefCell<Node>>;
[INFO] [stdout]    |                           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 90 | type NodeRef = Rc<RefCell<dyn Node>>;
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/commands.rs:210:30
[INFO] [stdout]     |
[INFO] [stdout] 210 |     commands: Vec<Rc<RefCell<Command>>>,
[INFO] [stdout]     |                              ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 210 |     commands: Vec<Rc<RefCell<dyn Command>>>,
[INFO] [stdout]     |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/commands.rs:247:26
[INFO] [stdout]     |
[INFO] [stdout] 247 |     undo: Vec<Rc<RefCell<Command>>>,
[INFO] [stdout]     |                          ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 247 |     undo: Vec<Rc<RefCell<dyn Command>>>,
[INFO] [stdout]     |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/commands.rs:248:26
[INFO] [stdout]     |
[INFO] [stdout] 248 |     redo: Vec<Rc<RefCell<Command>>>,
[INFO] [stdout]     |                          ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 248 |     redo: Vec<Rc<RefCell<dyn Command>>>,
[INFO] [stdout]     |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/params.rs:45:43
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub node_map: HashMap<i64, Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub node_map: HashMap<i64, Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:75:53
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, index: Option<i64>) -> ();
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, index: Option<i64>) -> ();
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/standard_in.rs:42:54
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn set_input(&mut self, _node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {}
[INFO] [stdout]    |                                                      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn set_input(&mut self, _node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {}
[INFO] [stdout]    |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/standard_out.rs:44:53
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/lines.rs:43:53
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/string_contains.rs:50:53
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/json_parse.rs:44:53
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/json_stringify.rs:40:53
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/json_keys.rs:43:53
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/json_object.rs:50:53
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/to_int.rs:47:53
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/sum.rs:40:53
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/gui.rs:303:23
[INFO] [stdout]     |
[INFO] [stdout] 303 |     node: &Rc<RefCell<Node>>,
[INFO] [stdout]     |                       ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 303 |     node: &Rc<RefCell<dyn Node>>,
[INFO] [stdout]     |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/build.rs:20:59
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn build(id: i64, type_: String) -> Option<Rc<RefCell<Node>>> {
[INFO] [stdout]    |                                                           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn build(id: i64, type_: String) -> Option<Rc<RefCell<dyn Node>>> {
[INFO] [stdout]    |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/build.rs:93:40
[INFO] [stdout]    |
[INFO] [stdout] 93 |     node_map: &HashMap<i64, Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 93 |     node_map: &HashMap<i64, Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/build.rs:109:40
[INFO] [stdout]     |
[INFO] [stdout] 109 |     node_map: &HashMap<i64, Rc<RefCell<Node>>>,
[INFO] [stdout]     |                                        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 |     node_map: &HashMap<i64, Rc<RefCell<dyn Node>>>,
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/build.rs:118:24
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub fn pull(node: &mut Node) -> FlowData {
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub fn pull(node: &mut dyn Node) -> FlowData {
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/commands.rs:214:41
[INFO] [stdout]     |
[INFO] [stdout] 214 |     pub fn new(commands: Vec<Rc<RefCell<Command>>>) -> Self {
[INFO] [stdout]     |                                         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 214 |     pub fn new(commands: Vec<Rc<RefCell<dyn Command>>>) -> Self {
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/commands.rs:218:45
[INFO] [stdout]     |
[INFO] [stdout] 218 |     pub fn new_ref(commands: Vec<Rc<RefCell<Command>>>) -> Rc<RefCell<Self>> {
[INFO] [stdout]     |                                             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 218 |     pub fn new_ref(commands: Vec<Rc<RefCell<dyn Command>>>) -> Rc<RefCell<Self>> {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/commands.rs:259:48
[INFO] [stdout]     |
[INFO] [stdout] 259 |     pub fn push(&mut self, command: Rc<RefCell<Command>>) {
[INFO] [stdout]     |                                                ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 259 |     pub fn push(&mut self, command: Rc<RefCell<dyn Command>>) {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/gui.rs:612:42
[INFO] [stdout]     |
[INFO] [stdout] 612 |         let mut commands: Vec<Rc<RefCell<Command>>> = vec![];
[INFO] [stdout]     |                                          ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 612 |         let mut commands: Vec<Rc<RefCell<dyn Command>>> = vec![];
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:97:27
[INFO] [stdout]    |
[INFO] [stdout] 97 |     let builders: Vec<Box<NodeBuilder>> = vec![
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 97 |     let builders: Vec<Box<dyn NodeBuilder>> = vec![
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/gui.rs:371:18
[INFO] [stdout]     |
[INFO] [stdout] 371 |       for event in widgets::Background::new()
[INFO] [stdout]     |  __________________^
[INFO] [stdout] 372 | |         .parent(ids.node_panel)
[INFO] [stdout] 373 | |         .set(ids.node_background, ui)
[INFO] [stdout]     | |_____________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 371 |     while let Some(event) = widgets::Background::new()
[INFO] [stdout]     |     ~~~~~~~~~~~~~~~     ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 371 |     if let Some(event) = widgets::Background::new()
[INFO] [stdout]     |     ~~~~~~~~~~~~     ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/gui.rs:473:22
[INFO] [stdout]     |
[INFO] [stdout] 473 |           for event in gui_node::GuiNode::new(g_node.clone(), selected)
[INFO] [stdout]     |  ______________________^
[INFO] [stdout] 474 | |             .parent(ids.canvas)
[INFO] [stdout] 475 | |             .w(140.0)
[INFO] [stdout] 476 | |             .h(30.0)
[INFO] [stdout] 477 | |             .set(id, ui)
[INFO] [stdout]     | |________________________^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 473 |         while let Some(event) = gui_node::GuiNode::new(g_node.clone(), selected)
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~     ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 473 |         if let Some(event) = gui_node::GuiNode::new(g_node.clone(), selected)
[INFO] [stdout]     |         ~~~~~~~~~~~~     ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 39 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.11s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "33d3885494e3085097933e69b7de3257210ae954bf29c58ed727fda2cda31e89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33d3885494e3085097933e69b7de3257210ae954bf29c58ed727fda2cda31e89", kill_on_drop: false }`
[INFO] [stdout] 33d3885494e3085097933e69b7de3257210ae954bf29c58ed727fda2cda31e89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4d2d758acec6720e592169d85a4e59d8bef6ce6e28054886c928864866120e3
[INFO] running `Command { std: "docker" "start" "-a" "b4d2d758acec6720e592169d85a4e59d8bef6ce6e28054886c928864866120e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling mango v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/commands.rs:15:27
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn execute(&mut self, &mut Params);
[INFO] [stdout]    |                           ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut Params`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/standard_out.rs:15:34
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/lines.rs:15:34
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/string_contains.rs:19:34
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/json_parse.rs:17:34
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/json_stringify.rs:17:34
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/json_keys.rs:15:34
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/json_object.rs:17:39
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub keys_input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub keys_input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/json_object.rs:18:41
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub values_input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub values_input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/to_int.rs:15:34
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/sum.rs:15:34
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:90:27
[INFO] [stdout]    |
[INFO] [stdout] 90 | type NodeRef = Rc<RefCell<Node>>;
[INFO] [stdout]    |                           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 90 | type NodeRef = Rc<RefCell<dyn Node>>;
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/commands.rs:210:30
[INFO] [stdout]     |
[INFO] [stdout] 210 |     commands: Vec<Rc<RefCell<Command>>>,
[INFO] [stdout]     |                              ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 210 |     commands: Vec<Rc<RefCell<dyn Command>>>,
[INFO] [stdout]     |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/commands.rs:247:26
[INFO] [stdout]     |
[INFO] [stdout] 247 |     undo: Vec<Rc<RefCell<Command>>>,
[INFO] [stdout]     |                          ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 247 |     undo: Vec<Rc<RefCell<dyn Command>>>,
[INFO] [stdout]     |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/commands.rs:248:26
[INFO] [stdout]     |
[INFO] [stdout] 248 |     redo: Vec<Rc<RefCell<Command>>>,
[INFO] [stdout]     |                          ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 248 |     redo: Vec<Rc<RefCell<dyn Command>>>,
[INFO] [stdout]     |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/params.rs:45:43
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub node_map: HashMap<i64, Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub node_map: HashMap<i64, Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:75:53
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, index: Option<i64>) -> ();
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, index: Option<i64>) -> ();
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/standard_in.rs:42:54
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn set_input(&mut self, _node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {}
[INFO] [stdout]    |                                                      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn set_input(&mut self, _node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {}
[INFO] [stdout]    |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/standard_out.rs:44:53
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/lines.rs:43:53
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/string_contains.rs:50:53
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/json_parse.rs:44:53
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/json_stringify.rs:40:53
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/json_keys.rs:43:53
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/json_object.rs:50:53
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/to_int.rs:47:53
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/sum.rs:40:53
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/gui.rs:303:23
[INFO] [stdout]     |
[INFO] [stdout] 303 |     node: &Rc<RefCell<Node>>,
[INFO] [stdout]     |                       ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 303 |     node: &Rc<RefCell<dyn Node>>,
[INFO] [stdout]     |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/build.rs:20:59
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn build(id: i64, type_: String) -> Option<Rc<RefCell<Node>>> {
[INFO] [stdout]    |                                                           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn build(id: i64, type_: String) -> Option<Rc<RefCell<dyn Node>>> {
[INFO] [stdout]    |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/build.rs:93:40
[INFO] [stdout]    |
[INFO] [stdout] 93 |     node_map: &HashMap<i64, Rc<RefCell<Node>>>,
[INFO] [stdout]    |                                        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 93 |     node_map: &HashMap<i64, Rc<RefCell<dyn Node>>>,
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/build.rs:109:40
[INFO] [stdout]     |
[INFO] [stdout] 109 |     node_map: &HashMap<i64, Rc<RefCell<Node>>>,
[INFO] [stdout]     |                                        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 |     node_map: &HashMap<i64, Rc<RefCell<dyn Node>>>,
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/build.rs:118:24
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub fn pull(node: &mut Node) -> FlowData {
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub fn pull(node: &mut dyn Node) -> FlowData {
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/commands.rs:214:41
[INFO] [stdout]     |
[INFO] [stdout] 214 |     pub fn new(commands: Vec<Rc<RefCell<Command>>>) -> Self {
[INFO] [stdout]     |                                         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 214 |     pub fn new(commands: Vec<Rc<RefCell<dyn Command>>>) -> Self {
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/commands.rs:218:45
[INFO] [stdout]     |
[INFO] [stdout] 218 |     pub fn new_ref(commands: Vec<Rc<RefCell<Command>>>) -> Rc<RefCell<Self>> {
[INFO] [stdout]     |                                             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 218 |     pub fn new_ref(commands: Vec<Rc<RefCell<dyn Command>>>) -> Rc<RefCell<Self>> {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/commands.rs:259:48
[INFO] [stdout]     |
[INFO] [stdout] 259 |     pub fn push(&mut self, command: Rc<RefCell<Command>>) {
[INFO] [stdout]     |                                                ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 259 |     pub fn push(&mut self, command: Rc<RefCell<dyn Command>>) {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/gui.rs:612:42
[INFO] [stdout]     |
[INFO] [stdout] 612 |         let mut commands: Vec<Rc<RefCell<Command>>> = vec![];
[INFO] [stdout]     |                                          ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 612 |         let mut commands: Vec<Rc<RefCell<dyn Command>>> = vec![];
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:97:27
[INFO] [stdout]    |
[INFO] [stdout] 97 |     let builders: Vec<Box<NodeBuilder>> = vec![
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 97 |     let builders: Vec<Box<dyn NodeBuilder>> = vec![
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/gui.rs:371:18
[INFO] [stdout]     |
[INFO] [stdout] 371 |       for event in widgets::Background::new()
[INFO] [stdout]     |  __________________^
[INFO] [stdout] 372 | |         .parent(ids.node_panel)
[INFO] [stdout] 373 | |         .set(ids.node_background, ui)
[INFO] [stdout]     | |_____________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 371 |     while let Some(event) = widgets::Background::new()
[INFO] [stdout]     |     ~~~~~~~~~~~~~~~     ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 371 |     if let Some(event) = widgets::Background::new()
[INFO] [stdout]     |     ~~~~~~~~~~~~     ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/gui.rs:473:22
[INFO] [stdout]     |
[INFO] [stdout] 473 |           for event in gui_node::GuiNode::new(g_node.clone(), selected)
[INFO] [stdout]     |  ______________________^
[INFO] [stdout] 474 | |             .parent(ids.canvas)
[INFO] [stdout] 475 | |             .w(140.0)
[INFO] [stdout] 476 | |             .h(30.0)
[INFO] [stdout] 477 | |             .set(id, ui)
[INFO] [stdout]     | |________________________^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 473 |         while let Some(event) = gui_node::GuiNode::new(g_node.clone(), selected)
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~     ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 473 |         if let Some(event) = gui_node::GuiNode::new(g_node.clone(), selected)
[INFO] [stdout]     |         ~~~~~~~~~~~~     ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 39 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "b4d2d758acec6720e592169d85a4e59d8bef6ce6e28054886c928864866120e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4d2d758acec6720e592169d85a4e59d8bef6ce6e28054886c928864866120e3", kill_on_drop: false }`
[INFO] [stdout] b4d2d758acec6720e592169d85a4e59d8bef6ce6e28054886c928864866120e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 96b6fdfb33d580b28633971316492fc13be21c25b1edf309b9383eb7615fbd6b
[INFO] running `Command { std: "docker" "start" "-a" "96b6fdfb33d580b28633971316492fc13be21c25b1edf309b9383eb7615fbd6b", kill_on_drop: false }`
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]   --> src/commands.rs:15:27
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn execute(&mut self, &mut Params);
[INFO] [stderr]    |                           ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut Params`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/standard_out.rs:15:34
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stderr]    |                                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stderr]    |                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/lines.rs:15:34
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stderr]    |                                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stderr]    |                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/string_contains.rs:19:34
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stderr]    |                                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stderr]    |                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/json_parse.rs:17:34
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stderr]    |                                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stderr]    |                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/json_stringify.rs:17:34
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stderr]    |                                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stderr]    |                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/json_keys.rs:15:34
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stderr]    |                                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stderr]    |                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/json_object.rs:17:39
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub keys_input: Option<Rc<RefCell<Node>>>,
[INFO] [stderr]    |                                       ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub keys_input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stderr]    |                                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/json_object.rs:18:41
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub values_input: Option<Rc<RefCell<Node>>>,
[INFO] [stderr]    |                                         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub values_input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stderr]    |                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/to_int.rs:15:34
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stderr]    |                                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stderr]    |                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/sum.rs:15:34
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub input: Option<Rc<RefCell<Node>>>,
[INFO] [stderr]    |                                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub input: Option<Rc<RefCell<dyn Node>>>,
[INFO] [stderr]    |                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:90:27
[INFO] [stderr]    |
[INFO] [stderr] 90 | type NodeRef = Rc<RefCell<Node>>;
[INFO] [stderr]    |                           ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 90 | type NodeRef = Rc<RefCell<dyn Node>>;
[INFO] [stderr]    |                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/commands.rs:210:30
[INFO] [stderr]     |
[INFO] [stderr] 210 |     commands: Vec<Rc<RefCell<Command>>>,
[INFO] [stderr]     |                              ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 210 |     commands: Vec<Rc<RefCell<dyn Command>>>,
[INFO] [stderr]     |                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/commands.rs:247:26
[INFO] [stderr]     |
[INFO] [stderr] 247 |     undo: Vec<Rc<RefCell<Command>>>,
[INFO] [stderr]     |                          ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 247 |     undo: Vec<Rc<RefCell<dyn Command>>>,
[INFO] [stderr]     |                          +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/commands.rs:248:26
[INFO] [stderr]     |
[INFO] [stderr] 248 |     redo: Vec<Rc<RefCell<Command>>>,
[INFO] [stderr]     |                          ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 248 |     redo: Vec<Rc<RefCell<dyn Command>>>,
[INFO] [stderr]     |                          +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/params.rs:45:43
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub node_map: HashMap<i64, Rc<RefCell<Node>>>,
[INFO] [stderr]    |                                           ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub node_map: HashMap<i64, Rc<RefCell<dyn Node>>>,
[INFO] [stderr]    |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:75:53
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, index: Option<i64>) -> ();
[INFO] [stderr]    |                                                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, index: Option<i64>) -> ();
[INFO] [stderr]    |                                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/standard_in.rs:42:54
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn set_input(&mut self, _node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {}
[INFO] [stderr]    |                                                      ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn set_input(&mut self, _node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {}
[INFO] [stderr]    |                                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/standard_out.rs:44:53
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stderr]    |                                                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stderr]    |                                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/lines.rs:43:53
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stderr]    |                                                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stderr]    |                                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/string_contains.rs:50:53
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stderr]    |                                                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stderr]    |                                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/json_parse.rs:44:53
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stderr]    |                                                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stderr]    |                                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/json_stringify.rs:40:53
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stderr]    |                                                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stderr]    |                                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/json_keys.rs:43:53
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stderr]    |                                                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stderr]    |                                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/json_object.rs:50:53
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, index: Option<i64>) -> () {
[INFO] [stderr]    |                                                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, index: Option<i64>) -> () {
[INFO] [stderr]    |                                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/to_int.rs:47:53
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stderr]    |                                                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stderr]    |                                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/sum.rs:40:53
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn set_input(&mut self, node: Option<Rc<RefCell<Node>>>, _index: Option<i64>) -> () {
[INFO] [stderr]    |                                                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn set_input(&mut self, node: Option<Rc<RefCell<dyn Node>>>, _index: Option<i64>) -> () {
[INFO] [stderr]    |                                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/gui.rs:303:23
[INFO] [stderr]     |
[INFO] [stderr] 303 |     node: &Rc<RefCell<Node>>,
[INFO] [stderr]     |                       ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 303 |     node: &Rc<RefCell<dyn Node>>,
[INFO] [stderr]     |                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/build.rs:20:59
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn build(id: i64, type_: String) -> Option<Rc<RefCell<Node>>> {
[INFO] [stderr]    |                                                           ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn build(id: i64, type_: String) -> Option<Rc<RefCell<dyn Node>>> {
[INFO] [stderr]    |                                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/build.rs:93:40
[INFO] [stderr]    |
[INFO] [stderr] 93 |     node_map: &HashMap<i64, Rc<RefCell<Node>>>,
[INFO] [stderr]    |                                        ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 93 |     node_map: &HashMap<i64, Rc<RefCell<dyn Node>>>,
[INFO] [stderr]    |                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/build.rs:109:40
[INFO] [stderr]     |
[INFO] [stderr] 109 |     node_map: &HashMap<i64, Rc<RefCell<Node>>>,
[INFO] [stderr]     |                                        ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 109 |     node_map: &HashMap<i64, Rc<RefCell<dyn Node>>>,
[INFO] [stderr]     |                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/build.rs:118:24
[INFO] [stderr]     |
[INFO] [stderr] 118 | pub fn pull(node: &mut Node) -> FlowData {
[INFO] [stderr]     |                        ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 118 | pub fn pull(node: &mut dyn Node) -> FlowData {
[INFO] [stderr]     |                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/commands.rs:214:41
[INFO] [stderr]     |
[INFO] [stderr] 214 |     pub fn new(commands: Vec<Rc<RefCell<Command>>>) -> Self {
[INFO] [stderr]     |                                         ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 214 |     pub fn new(commands: Vec<Rc<RefCell<dyn Command>>>) -> Self {
[INFO] [stderr]     |                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/commands.rs:218:45
[INFO] [stderr]     |
[INFO] [stderr] 218 |     pub fn new_ref(commands: Vec<Rc<RefCell<Command>>>) -> Rc<RefCell<Self>> {
[INFO] [stderr]     |                                             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 218 |     pub fn new_ref(commands: Vec<Rc<RefCell<dyn Command>>>) -> Rc<RefCell<Self>> {
[INFO] [stderr]     |                                             +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/commands.rs:259:48
[INFO] [stderr]     |
[INFO] [stderr] 259 |     pub fn push(&mut self, command: Rc<RefCell<Command>>) {
[INFO] [stderr]     |                                                ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 259 |     pub fn push(&mut self, command: Rc<RefCell<dyn Command>>) {
[INFO] [stderr]     |                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/gui.rs:612:42
[INFO] [stderr]     |
[INFO] [stderr] 612 |         let mut commands: Vec<Rc<RefCell<Command>>> = vec![];
[INFO] [stderr]     |                                          ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 612 |         let mut commands: Vec<Rc<RefCell<dyn Command>>> = vec![];
[INFO] [stderr]     |                                          +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:97:27
[INFO] [stderr]    |
[INFO] [stderr] 97 |     let builders: Vec<Box<NodeBuilder>> = vec![
[INFO] [stderr]    |                           ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 97 |     let builders: Vec<Box<dyn NodeBuilder>> = vec![
[INFO] [stderr]    |                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stderr]    --> src/gui.rs:371:18
[INFO] [stderr]     |
[INFO] [stderr] 371 |       for event in widgets::Background::new()
[INFO] [stderr]     |  __________________^
[INFO] [stderr] 372 | |         .parent(ids.node_panel)
[INFO] [stderr] 373 | |         .set(ids.node_background, ui)
[INFO] [stderr]     | |_____________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stderr] help: to check pattern in a loop use `while let`
[INFO] [stderr]     |
[INFO] [stderr] 371 |     while let Some(event) = widgets::Background::new()
[INFO] [stderr]     |     ~~~~~~~~~~~~~~~     ~~~
[INFO] [stderr] help: consider using `if let` to clear intent
[INFO] [stderr]     |
[INFO] [stderr] 371 |     if let Some(event) = widgets::Background::new()
[INFO] [stderr]     |     ~~~~~~~~~~~~     ~~~
[INFO] [stderr] 
[INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stderr]    --> src/gui.rs:473:22
[INFO] [stderr]     |
[INFO] [stderr] 473 |           for event in gui_node::GuiNode::new(g_node.clone(), selected)
[INFO] [stderr]     |  ______________________^
[INFO] [stderr] 474 | |             .parent(ids.canvas)
[INFO] [stderr] 475 | |             .w(140.0)
[INFO] [stderr] 476 | |             .h(30.0)
[INFO] [stderr] 477 | |             .set(id, ui)
[INFO] [stderr]     | |________________________^
[INFO] [stderr]     |
[INFO] [stderr] help: to check pattern in a loop use `while let`
[INFO] [stderr]     |
[INFO] [stderr] 473 |         while let Some(event) = gui_node::GuiNode::new(g_node.clone(), selected)
[INFO] [stderr]     |         ~~~~~~~~~~~~~~~     ~~~
[INFO] [stderr] help: consider using `if let` to clear intent
[INFO] [stderr]     |
[INFO] [stderr] 473 |         if let Some(event) = gui_node::GuiNode::new(g_node.clone(), selected)
[INFO] [stderr]     |         ~~~~~~~~~~~~     ~~~
[INFO] [stderr] 
[INFO] [stderr] warning: `mango` (bin "mango" test) generated 39 warnings (run `cargo fix --bin "mango" --tests` to apply 37 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mango-fdea6140e644beee)
[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" "96b6fdfb33d580b28633971316492fc13be21c25b1edf309b9383eb7615fbd6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96b6fdfb33d580b28633971316492fc13be21c25b1edf309b9383eb7615fbd6b", kill_on_drop: false }`
[INFO] [stdout] 96b6fdfb33d580b28633971316492fc13be21c25b1edf309b9383eb7615fbd6b
