[INFO] cloning repository https://github.com/yui-knk/type_lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yui-knk/type_lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyui-knk%2Ftype_lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyui-knk%2Ftype_lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ed69f34ad8701719671089770ae0063e4ac1aa6a
[INFO] checking yui-knk/type_lang against try#09eeb2bacb9b40b2ed1d47f03177442c0632cda1 for pr-157710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyui-knk%2Ftype_lang" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/yui-knk/type_lang
[INFO] finished tweaking git repo https://github.com/yui-knk/type_lang
[INFO] tweaked toml for git repo https://github.com/yui-knk/type_lang written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yui-knk/type_lang on toolchain 09eeb2bacb9b40b2ed1d47f03177442c0632cda1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09eeb2bacb9b40b2ed1d47f03177442c0632cda1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/yui-knk/type_lang 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" "+09eeb2bacb9b40b2ed1d47f03177442c0632cda1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `type_lang` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2d287f4a2df79a2d9c6656e85fbc4a1b32c130cd604bbd7037de5e19bb90e654
[INFO] running `Command { std: "docker" "start" "2d287f4a2df79a2d9c6656e85fbc4a1b32c130cd604bbd7037de5e19bb90e654", 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" "2d287f4a2df79a2d9c6656e85fbc4a1b32c130cd604bbd7037de5e19bb90e654" "/opt/rustwide/cargo-home/bin/cargo" "+09eeb2bacb9b40b2ed1d47f03177442c0632cda1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d287f4a2df79a2d9c6656e85fbc4a1b32c130cd604bbd7037de5e19bb90e654", 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" "2d287f4a2df79a2d9c6656e85fbc4a1b32c130cd604bbd7037de5e19bb90e654" "/opt/rustwide/cargo-home/bin/cargo" "+09eeb2bacb9b40b2ed1d47f03177442c0632cda1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `type_lang` (manifest) generated 1 warning
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling proc-macro2 v0.4.26
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling serde v1.0.85
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling block-padding v0.1.3
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling opaque-debug v0.2.2
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.1
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling rand_os v0.1.2
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling bit-vec v0.5.0
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling ascii-canvas v1.0.0
[INFO] [stderr]    Compiling bit-set v0.5.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling ena v0.11.0
[INFO] [stderr]    Compiling lalrpop-util v0.16.3
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking itertools v0.7.8
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling generic-array v0.12.0
[INFO] [stderr]    Compiling block-buffer v0.7.2
[INFO] [stderr]    Compiling digest v0.8.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.85
[INFO] [stderr]    Compiling docopt v1.0.2
[INFO] [stderr]    Compiling lalrpop v0.16.3
[INFO] [stderr]    Compiling type_lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/type_lang-97f6b94e2a0cae55/out/parser.rs:6382:5
[INFO] [stdout]      |
[INFO] [stdout] 6382 |     (__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] 6382 -     (__0)
[INFO] [stdout] 6382 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/type_lang-97f6b94e2a0cae55/out/parser.rs:6393:5
[INFO] [stdout]      |
[INFO] [stdout] 6393 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6393 -     (__0)
[INFO] [stdout] 6393 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/node.rs:242:36
[INFO] [stdout]     |
[INFO] [stdout] 242 | pub fn print_with_indent(buf: &mut Write, node: &Node, level: usize, space_count: usize) -> std::io::Result<()> {
[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/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] 242 | pub fn print_with_indent(buf: &mut dyn Write, node: &Node, level: usize, space_count: usize) -> std::io::Result<()> {
[INFO] [stdout]     |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/type_lang-97f6b94e2a0cae55/out/parser.rs:6382:5
[INFO] [stdout]      |
[INFO] [stdout] 6382 |     (__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] 6382 -     (__0)
[INFO] [stdout] 6382 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/type_lang-97f6b94e2a0cae55/out/parser.rs:6393:5
[INFO] [stdout]      |
[INFO] [stdout] 6393 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6393 -     (__0)
[INFO] [stdout] 6393 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::__parse__Type::TypeParser`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/type_lang-97f6b94e2a0cae55/out/parser.rs:6197:9
[INFO] [stdout]      |
[INFO] [stdout] 6197 | pub use self::__parse__Type::TypeParser;
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/node.rs:255:36
[INFO] [stdout]     |
[INFO] [stdout] 255 |         Lambda(ref var, ref node1, ref ty) => {
[INFO] [stdout]     |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node1`
[INFO] [stdout]    --> src/node.rs:280:14
[INFO] [stdout]     |
[INFO] [stdout] 280 |         Succ(ref node1) => {
[INFO] [stdout]     |              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node1`
[INFO] [stdout]    --> src/node.rs:284:14
[INFO] [stdout]     |
[INFO] [stdout] 284 |         Pred(ref node1) => {
[INFO] [stdout]     |              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node1`
[INFO] [stdout]    --> src/node.rs:288:16
[INFO] [stdout]     |
[INFO] [stdout] 288 |         Iszero(ref node1) => {
[INFO] [stdout]     |                ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/node.rs:292:16
[INFO] [stdout]     |
[INFO] [stdout] 292 |         Record(ref f) => {
[INFO] [stdout]     |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node1`
[INFO] [stdout]    --> src/node.rs:296:20
[INFO] [stdout]     |
[INFO] [stdout] 296 |         Projection(ref node1, ref label) => {
[INFO] [stdout]     |                    ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label`
[INFO] [stdout]    --> src/node.rs:296:31
[INFO] [stdout]     |
[INFO] [stdout] 296 |         Projection(ref node1, ref label) => {
[INFO] [stdout]     |                               ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tag`
[INFO] [stdout]    --> src/node.rs:311:13
[INFO] [stdout]     |
[INFO] [stdout] 311 |         Tag(ref tag, ref node1, ref ty) => {
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node1`
[INFO] [stdout]    --> src/node.rs:311:22
[INFO] [stdout]     |
[INFO] [stdout] 311 |         Tag(ref tag, ref node1, ref ty) => {
[INFO] [stdout]     |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/node.rs:311:33
[INFO] [stdout]     |
[INFO] [stdout] 311 |         Tag(ref tag, ref node1, ref ty) => {
[INFO] [stdout]     |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node1`
[INFO] [stdout]    --> src/node.rs:315:14
[INFO] [stdout]     |
[INFO] [stdout] 315 |         Case(ref node1, ref cases) => {
[INFO] [stdout]     |              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cases`
[INFO] [stdout]    --> src/node.rs:315:25
[INFO] [stdout]     |
[INFO] [stdout] 315 |         Case(ref node1, ref cases) => {
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cases`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node1`
[INFO] [stdout]    --> src/node.rs:319:12
[INFO] [stdout]     |
[INFO] [stdout] 319 |         As(ref node1, ref ty) => {
[INFO] [stdout]     |            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/node.rs:319:23
[INFO] [stdout]     |
[INFO] [stdout] 319 |         As(ref node1, ref ty) => {
[INFO] [stdout]     |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node1`
[INFO] [stdout]    --> src/node.rs:323:13
[INFO] [stdout]     |
[INFO] [stdout] 323 |         Fix(ref node1) => {
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]    --> src/node.rs:343:13
[INFO] [stdout]     |
[INFO] [stdout] 343 |         Loc(ref l) => {
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/node.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn iter(&self) -> ::std::slice::Iter<(String, Box<Node>)> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn iter(&self) -> ::std::slice::Iter<'_, (String, Box<Node>)> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/node.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn iter(&self) -> ::std::slice::Iter<(String, (String, Box<Node>))> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn iter(&self) -> ::std::slice::Iter<'_, (String, (String, Box<Node>))> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ty.rs:20:17
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn iter(&self) -> ::std::slice::Iter<(String, Box<Ty>)> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn iter(&self) -> ::std::slice::Iter<'_, (String, Box<Ty>)> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/node.rs:242:36
[INFO] [stdout]     |
[INFO] [stdout] 242 | pub fn print_with_indent(buf: &mut Write, node: &Node, level: usize, space_count: usize) -> std::io::Result<()> {
[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/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] 242 | pub fn print_with_indent(buf: &mut dyn Write, node: &Node, level: usize, space_count: usize) -> std::io::Result<()> {
[INFO] [stdout]     |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         print_with_indent(&mut io::stdout(), &result, 0, 2);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let _ = print_with_indent(&mut io::stdout(), &result, 0, 2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         print_with_indent(&mut io::stdout(), &result, 0, 2);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let _ = print_with_indent(&mut io::stdout(), &result, 0, 2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/node.rs:255:36
[INFO] [stdout]     |
[INFO] [stdout] 255 |         Lambda(ref var, ref node1, ref ty) => {
[INFO] [stdout]     |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node1`
[INFO] [stdout]    --> src/node.rs:280:14
[INFO] [stdout]     |
[INFO] [stdout] 280 |         Succ(ref node1) => {
[INFO] [stdout]     |              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node1`
[INFO] [stdout]    --> src/node.rs:284:14
[INFO] [stdout]     |
[INFO] [stdout] 284 |         Pred(ref node1) => {
[INFO] [stdout]     |              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node1`
[INFO] [stdout]    --> src/node.rs:288:16
[INFO] [stdout]     |
[INFO] [stdout] 288 |         Iszero(ref node1) => {
[INFO] [stdout]     |                ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/node.rs:292:16
[INFO] [stdout]     |
[INFO] [stdout] 292 |         Record(ref f) => {
[INFO] [stdout]     |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node1`
[INFO] [stdout]    --> src/node.rs:296:20
[INFO] [stdout]     |
[INFO] [stdout] 296 |         Projection(ref node1, ref label) => {
[INFO] [stdout]     |                    ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label`
[INFO] [stdout]    --> src/node.rs:296:31
[INFO] [stdout]     |
[INFO] [stdout] 296 |         Projection(ref node1, ref label) => {
[INFO] [stdout]     |                               ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tag`
[INFO] [stdout]    --> src/node.rs:311:13
[INFO] [stdout]     |
[INFO] [stdout] 311 |         Tag(ref tag, ref node1, ref ty) => {
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node1`
[INFO] [stdout]    --> src/node.rs:311:22
[INFO] [stdout]     |
[INFO] [stdout] 311 |         Tag(ref tag, ref node1, ref ty) => {
[INFO] [stdout]     |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/node.rs:311:33
[INFO] [stdout]     |
[INFO] [stdout] 311 |         Tag(ref tag, ref node1, ref ty) => {
[INFO] [stdout]     |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node1`
[INFO] [stdout]    --> src/node.rs:315:14
[INFO] [stdout]     |
[INFO] [stdout] 315 |         Case(ref node1, ref cases) => {
[INFO] [stdout]     |              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cases`
[INFO] [stdout]    --> src/node.rs:315:25
[INFO] [stdout]     |
[INFO] [stdout] 315 |         Case(ref node1, ref cases) => {
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cases`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node1`
[INFO] [stdout]    --> src/node.rs:319:12
[INFO] [stdout]     |
[INFO] [stdout] 319 |         As(ref node1, ref ty) => {
[INFO] [stdout]     |            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/node.rs:319:23
[INFO] [stdout]     |
[INFO] [stdout] 319 |         As(ref node1, ref ty) => {
[INFO] [stdout]     |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node1`
[INFO] [stdout]    --> src/node.rs:323:13
[INFO] [stdout]     |
[INFO] [stdout] 323 |         Fix(ref node1) => {
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]    --> src/node.rs:343:13
[INFO] [stdout]     |
[INFO] [stdout] 343 |         Loc(ref l) => {
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/type_lang-97f6b94e2a0cae55/out/parser.rs:4450:16
[INFO] [stdout]      |
[INFO] [stdout] 4449 |     impl TypeParser {
[INFO] [stdout]      |     --------------- associated function in this implementation
[INFO] [stdout] 4450 |         pub fn new() -> TypeParser {
[INFO] [stdout]      |                ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/node.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn iter(&self) -> ::std::slice::Iter<(String, Box<Node>)> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn iter(&self) -> ::std::slice::Iter<'_, (String, Box<Node>)> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/node.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn iter(&self) -> ::std::slice::Iter<(String, (String, Box<Node>))> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn iter(&self) -> ::std::slice::Iter<'_, (String, (String, Box<Node>))> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ty.rs:20:17
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn iter(&self) -> ::std::slice::Iter<(String, Box<Ty>)> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn iter(&self) -> ::std::slice::Iter<'_, (String, Box<Ty>)> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.71s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: lalrpop v0.16.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 7`
[INFO] running `Command { std: "docker" "inspect" "2d287f4a2df79a2d9c6656e85fbc4a1b32c130cd604bbd7037de5e19bb90e654", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d287f4a2df79a2d9c6656e85fbc4a1b32c130cd604bbd7037de5e19bb90e654", kill_on_drop: false }`
[INFO] [stdout] 2d287f4a2df79a2d9c6656e85fbc4a1b32c130cd604bbd7037de5e19bb90e654
