[INFO] cloning repository https://github.com/rookie1024/Spin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rookie1024/Spin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frookie1024%2FSpin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frookie1024%2FSpin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 31597733f79cf0b07d82812821b4105ee2b79108
[INFO] checking rookie1024/Spin against try#14e4661efa5acbf985e4fe564baae04683366cc1 for pr-157696
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frookie1024%2FSpin" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rookie1024/Spin
[INFO] finished tweaking git repo https://github.com/rookie1024/Spin
[INFO] tweaked toml for git repo https://github.com/rookie1024/Spin written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rookie1024/Spin on toolchain 14e4661efa5acbf985e4fe564baae04683366cc1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+14e4661efa5acbf985e4fe564baae04683366cc1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rookie1024/Spin 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" "+14e4661efa5acbf985e4fe564baae04683366cc1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 6f1727e7264438c47a986e87c58adc3af92c28b2fce1db9866af7f1162371a07
[INFO] running `Command { std: "docker" "start" "6f1727e7264438c47a986e87c58adc3af92c28b2fce1db9866af7f1162371a07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6f1727e7264438c47a986e87c58adc3af92c28b2fce1db9866af7f1162371a07" "/opt/rustwide/cargo-home/bin/cargo" "+14e4661efa5acbf985e4fe564baae04683366cc1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f1727e7264438c47a986e87c58adc3af92c28b2fce1db9866af7f1162371a07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6f1727e7264438c47a986e87c58adc3af92c28b2fce1db9866af7f1162371a07" "/opt/rustwide/cargo-home/bin/cargo" "+14e4661efa5acbf985e4fe564baae04683366cc1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling byte-tools v0.3.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling ucd-util v0.1.2
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling block-padding v0.1.2
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.1
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling bit-vec v0.5.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling regex-syntax v0.6.2
[INFO] [stderr]    Compiling opaque-debug v0.2.1
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling bit-set v0.5.0
[INFO] [stderr]    Compiling ena v0.10.1
[INFO] [stderr]    Compiling lalrpop-util v0.16.1
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]    Compiling ascii-canvas v1.0.0
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling quote v0.6.9
[INFO] [stderr]    Compiling syn v0.15.18
[INFO] [stderr]    Compiling generic-array v0.12.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling block-buffer v0.7.0
[INFO] [stderr]    Compiling digest v0.8.0
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling docopt v1.0.2
[INFO] [stderr]    Compiling lalrpop v0.16.1
[INFO] [stderr]    Compiling spin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ir_tags::*`
[INFO] [stdout]   --> src/uwml/mod.rs:16:30
[INFO] [stdout]    |
[INFO] [stdout] 16 |     document::*, element::*, ir_tags::*, node::*, scope::*, style::*, value::*,
[INFO] [stdout]    |                              ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/spin-6e813878b8a6511f/out/grammar.rs:2538:5
[INFO] [stdout]      |
[INFO] [stdout] 2538 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 2538 -     (__0)
[INFO] [stdout] 2538 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/spin-6e813878b8a6511f/out/grammar.rs:2576:5
[INFO] [stdout]      |
[INFO] [stdout] 2576 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 2576 -     (__0)
[INFO] [stdout] 2576 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/spin-6e813878b8a6511f/out/grammar.rs:2727:5
[INFO] [stdout]      |
[INFO] [stdout] 2727 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 2727 -     (__0)
[INFO] [stdout] 2727 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/spin-6e813878b8a6511f/out/grammar.rs:2913:5
[INFO] [stdout]      |
[INFO] [stdout] 2913 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 2913 -     (__0)
[INFO] [stdout] 2913 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/spin-6e813878b8a6511f/out/grammar.rs:3093:5
[INFO] [stdout]      |
[INFO] [stdout] 3093 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3093 -     (__0)
[INFO] [stdout] 3093 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/spin-6e813878b8a6511f/out/grammar.rs:3227:5
[INFO] [stdout]      |
[INFO] [stdout] 3227 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3227 -     (__0)
[INFO] [stdout] 3227 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `try_from` has been stable since 1.34.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_from)]
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/uwml/element.rs:10:22
[INFO] [stdout]    |
[INFO] [stdout] 10 |   class: ScopeRef<Rc<ElementClass>>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 10 |   class: ScopeRef<Rc<dyn ElementClass>>,
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/uwml/element.rs:79:22
[INFO] [stdout]    |
[INFO] [stdout] 79 |   class: ScopeRef<Rc<ElementClass>>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 79 |   class: ScopeRef<Rc<dyn ElementClass>>,
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/uwml/scope.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 |   Class(Rc<ElementClass>),
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 70 |   Class(Rc<dyn ElementClass>),
[INFO] [stdout]    |            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/uwml/scope.rs:131:17
[INFO] [stdout]     |
[INFO] [stdout] 131 | impl TryInto<Rc<ElementClass>> for ScopeItem {
[INFO] [stdout]     |                 ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 131 | impl TryInto<Rc<dyn ElementClass>> for ScopeItem {
[INFO] [stdout]     |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/uwml/scope.rs:89:14
[INFO] [stdout]    |
[INFO] [stdout] 89 | impl From<Rc<ElementClass>> for ScopeItem {
[INFO] [stdout]    |              ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 89 | impl From<Rc<dyn ElementClass>> for ScopeItem {
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/uwml/scope.rs:90:21
[INFO] [stdout]    |
[INFO] [stdout] 90 |   fn from(class: Rc<ElementClass>) -> Self { ScopeItem::Class(class) }
[INFO] [stdout]    |                     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 90 |   fn from(class: Rc<dyn ElementClass>) -> Self { ScopeItem::Class(class) }
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/uwml/scope.rs:135:34
[INFO] [stdout]     |
[INFO] [stdout] 135 |   fn try_into(self) -> Result<Rc<ElementClass>, Self::Error> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 135 |   fn try_into(self) -> Result<Rc<dyn ElementClass>, Self::Error> {
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/uwml/element.rs:15:36
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new<B>(class: ScopeRef<Rc<ElementClass>>, base: B) -> Self
[INFO] [stdout]    |                                    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new<B>(class: ScopeRef<Rc<dyn ElementClass>>, base: B) -> Self
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/uwml/element.rs:84:33
[INFO] [stdout]    |
[INFO] [stdout] 84 |   pub fn new(class: ScopeRef<Rc<ElementClass>>, style: Style) -> Self {
[INFO] [stdout]    |                                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 |   pub fn new(class: ScopeRef<Rc<dyn ElementClass>>, style: Style) -> Self {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/uwml/scope.rs:97:48
[INFO] [stdout]    |
[INFO] [stdout] 97 |   fn from(class: Rc<T>) -> Self { (class as Rc<ElementClass>).into() }
[INFO] [stdout]    |                                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 97 |   fn from(class: Rc<T>) -> Self { (class as Rc<dyn ElementClass>).into() }
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ir_tags::*`
[INFO] [stdout]   --> src/uwml/mod.rs:16:30
[INFO] [stdout]    |
[INFO] [stdout] 16 |     document::*, element::*, ir_tags::*, node::*, scope::*, style::*, value::*,
[INFO] [stdout]    |                              ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/spin-6e813878b8a6511f/out/grammar.rs:2538:5
[INFO] [stdout]      |
[INFO] [stdout] 2538 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 2538 -     (__0)
[INFO] [stdout] 2538 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/spin-6e813878b8a6511f/out/grammar.rs:2576:5
[INFO] [stdout]      |
[INFO] [stdout] 2576 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 2576 -     (__0)
[INFO] [stdout] 2576 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/spin-6e813878b8a6511f/out/grammar.rs:2727:5
[INFO] [stdout]      |
[INFO] [stdout] 2727 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 2727 -     (__0)
[INFO] [stdout] 2727 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/spin-6e813878b8a6511f/out/grammar.rs:2913:5
[INFO] [stdout]      |
[INFO] [stdout] 2913 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 2913 -     (__0)
[INFO] [stdout] 2913 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/spin-6e813878b8a6511f/out/grammar.rs:3093:5
[INFO] [stdout]      |
[INFO] [stdout] 3093 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3093 -     (__0)
[INFO] [stdout] 3093 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/spin-6e813878b8a6511f/out/grammar.rs:3227:5
[INFO] [stdout]      |
[INFO] [stdout] 3227 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3227 -     (__0)
[INFO] [stdout] 3227 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/spin-6e813878b8a6511f/out/grammar.rs:2491:36
[INFO] [stdout]      |
[INFO] [stdout] 2491 |             let __text = self.text.trim_left();
[INFO] [stdout]      |                                    ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]      |
[INFO] [stdout] 2491 -             let __text = self.text.trim_left();
[INFO] [stdout] 2491 +             let __text = self.text.trim_start();
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `try_from` has been stable since 1.34.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_from)]
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/uwml/element.rs:10:22
[INFO] [stdout]    |
[INFO] [stdout] 10 |   class: ScopeRef<Rc<ElementClass>>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 10 |   class: ScopeRef<Rc<dyn ElementClass>>,
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/uwml/element.rs:79:22
[INFO] [stdout]    |
[INFO] [stdout] 79 |   class: ScopeRef<Rc<ElementClass>>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 79 |   class: ScopeRef<Rc<dyn ElementClass>>,
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/uwml/scope.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 |   Class(Rc<ElementClass>),
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 70 |   Class(Rc<dyn ElementClass>),
[INFO] [stdout]    |            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/uwml/scope.rs:131:17
[INFO] [stdout]     |
[INFO] [stdout] 131 | impl TryInto<Rc<ElementClass>> for ScopeItem {
[INFO] [stdout]     |                 ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 131 | impl TryInto<Rc<dyn ElementClass>> for ScopeItem {
[INFO] [stdout]     |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/uwml/scope.rs:89:14
[INFO] [stdout]    |
[INFO] [stdout] 89 | impl From<Rc<ElementClass>> for ScopeItem {
[INFO] [stdout]    |              ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 89 | impl From<Rc<dyn ElementClass>> for ScopeItem {
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/uwml/scope.rs:90:21
[INFO] [stdout]    |
[INFO] [stdout] 90 |   fn from(class: Rc<ElementClass>) -> Self { ScopeItem::Class(class) }
[INFO] [stdout]    |                     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 90 |   fn from(class: Rc<dyn ElementClass>) -> Self { ScopeItem::Class(class) }
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/uwml/scope.rs:135:34
[INFO] [stdout]     |
[INFO] [stdout] 135 |   fn try_into(self) -> Result<Rc<ElementClass>, Self::Error> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 135 |   fn try_into(self) -> Result<Rc<dyn ElementClass>, Self::Error> {
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/uwml/element.rs:15:36
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new<B>(class: ScopeRef<Rc<ElementClass>>, base: B) -> Self
[INFO] [stdout]    |                                    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new<B>(class: ScopeRef<Rc<dyn ElementClass>>, base: B) -> Self
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/uwml/element.rs:84:33
[INFO] [stdout]    |
[INFO] [stdout] 84 |   pub fn new(class: ScopeRef<Rc<ElementClass>>, style: Style) -> Self {
[INFO] [stdout]    |                                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 |   pub fn new(class: ScopeRef<Rc<dyn ElementClass>>, style: Style) -> Self {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `scope` is never read
[INFO] [stdout]  --> src/uwml/document.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Document {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 5 |   scope: Rc<Scope>,
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Document` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tag` is never read
[INFO] [stdout]   --> src/uwml/element.rs:60:3
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct CustomElementClass {
[INFO] [stdout]    |            ------------------ field in this struct
[INFO] [stdout] 60 |   tag: String,
[INFO] [stdout]    |   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CustomElementClass` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IrTags` is never used
[INFO] [stdout]  --> src/uwml/ir_tags.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait IrTags {
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `scope` is never read
[INFO] [stdout]   --> src/uwml/style.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Style {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 11 |   scope: Rc<Scope>,
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Style` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/uwml/value.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 |   Int(i64),
[INFO] [stdout]   |   --- ^^^
[INFO] [stdout]   |   |
[INFO] [stdout]   |   field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Value` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 6 -   Int(i64),
[INFO] [stdout] 6 +   Int(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/uwml/value.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 |   Element(Element),
[INFO] [stdout]   |   ------- ^^^^^^^
[INFO] [stdout]   |   |
[INFO] [stdout]   |   field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Value` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 7 -   Element(Element),
[INFO] [stdout] 7 +   Element(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/uwml/value.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |   Array(Vec<Value>),
[INFO] [stdout]   |   ----- ^^^^^^^^^^
[INFO] [stdout]   |   |
[INFO] [stdout]   |   field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Value` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 -   Array(Vec<Value>),
[INFO] [stdout] 8 +   Array(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/uwml/scope.rs:97:48
[INFO] [stdout]    |
[INFO] [stdout] 97 |   fn from(class: Rc<T>) -> Self { (class as Rc<ElementClass>).into() }
[INFO] [stdout]    |                                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 97 |   fn from(class: Rc<T>) -> Self { (class as Rc<dyn ElementClass>).into() }
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/spin-6e813878b8a6511f/out/grammar.rs:2491:36
[INFO] [stdout]      |
[INFO] [stdout] 2491 |             let __text = self.text.trim_left();
[INFO] [stdout]      |                                    ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]      |
[INFO] [stdout] 2491 -             let __text = self.text.trim_left();
[INFO] [stdout] 2491 +             let __text = self.text.trim_start();
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `scope` is never read
[INFO] [stdout]  --> src/uwml/document.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Document {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 5 |   scope: Rc<Scope>,
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Document` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tag` is never read
[INFO] [stdout]   --> src/uwml/element.rs:60:3
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct CustomElementClass {
[INFO] [stdout]    |            ------------------ field in this struct
[INFO] [stdout] 60 |   tag: String,
[INFO] [stdout]    |   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CustomElementClass` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IrTags` is never used
[INFO] [stdout]  --> src/uwml/ir_tags.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait IrTags {
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `scope` is never read
[INFO] [stdout]   --> src/uwml/style.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Style {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 11 |   scope: Rc<Scope>,
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Style` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/uwml/value.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 |   Int(i64),
[INFO] [stdout]   |   --- ^^^
[INFO] [stdout]   |   |
[INFO] [stdout]   |   field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Value` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 6 -   Int(i64),
[INFO] [stdout] 6 +   Int(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/uwml/value.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 |   Element(Element),
[INFO] [stdout]   |   ------- ^^^^^^^
[INFO] [stdout]   |   |
[INFO] [stdout]   |   field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Value` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 7 -   Element(Element),
[INFO] [stdout] 7 +   Element(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/uwml/value.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |   Array(Vec<Value>),
[INFO] [stdout]   |   ----- ^^^^^^^^^^
[INFO] [stdout]   |   |
[INFO] [stdout]   |   field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Value` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 -   Array(Vec<Value>),
[INFO] [stdout] 8 +   Array(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.24s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: lalrpop v0.16.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "6f1727e7264438c47a986e87c58adc3af92c28b2fce1db9866af7f1162371a07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f1727e7264438c47a986e87c58adc3af92c28b2fce1db9866af7f1162371a07", kill_on_drop: false }`
[INFO] [stdout] 6f1727e7264438c47a986e87c58adc3af92c28b2fce1db9866af7f1162371a07
