[INFO] cloning repository https://github.com/shahuwang/Rustparse
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shahuwang/Rustparse" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshahuwang%2FRustparse", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshahuwang%2FRustparse'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bb31d897e59dd4d4e70c3edb04f20e68c04cb846
[INFO] testing shahuwang/Rustparse against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshahuwang%2FRustparse" "/workspace/builds/worker-24/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-24/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shahuwang/Rustparse on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shahuwang/Rustparse
[INFO] finished tweaking git repo https://github.com/shahuwang/Rustparse
[INFO] tweaked toml for git repo https://github.com/shahuwang/Rustparse written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] crate git repo https://github.com/shahuwang/Rustparse already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40be6eea0c88aede68aa08a0bfef7b5f88f0a6f2650e7764ea8e7cbaece50d66
[INFO] running `Command { std: "docker" "start" "-a" "40be6eea0c88aede68aa08a0bfef7b5f88f0a6f2650e7764ea8e7cbaece50d66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40be6eea0c88aede68aa08a0bfef7b5f88f0a6f2650e7764ea8e7cbaece50d66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40be6eea0c88aede68aa08a0bfef7b5f88f0a6f2650e7764ea8e7cbaece50d66", kill_on_drop: false }`
[INFO] [stdout] 40be6eea0c88aede68aa08a0bfef7b5f88f0a6f2650e7764ea8e7cbaece50d66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a38c06abb2922687536c55416897338a1876ad12b87896d1c22364b67c9acd0
[INFO] running `Command { std: "docker" "start" "-a" "0a38c06abb2922687536c55416897338a1876ad12b87896d1c22364b67c9acd0", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v0.1.15
[INFO] [stderr]    Compiling parse v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/parse/node.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/parse/node.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> src/parse/node.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::any::Any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/parse/node.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `posTrait` should have an upper camel case name
[INFO] [stdout]  --> src/parse/node.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | trait posTrait{
[INFO] [stdout]   |       ^^^^^^^^ help: convert the identifier to upper camel case: `PosTrait`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parse::lex::*`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use parse::lex::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parse::parse::*`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use parse::parse::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parse::node::*`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use parse::node::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parse/node.rs:40:23
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn match_node<U, F:Fn(Node) -> U>(node: &NodeType, f:F) -> Option<String>{
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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 match_node<U, F:Fn(Node) -> U>(node: &NodeType, f:F) -> Option<String>{
[INFO] [stdout] 40 + fn match_node<U, F:Fn(dyn Node) -> U>(node: &NodeType, f:F) -> Option<String>{
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parse/lex.rs:601:72
[INFO] [stdout]     |
[INFO] [stdout] 601 | fn state_field_or_variable(l: &mut Lexer, typ: ItemType) -> Option<Box<StateFn>>{
[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] 601 - fn state_field_or_variable(l: &mut Lexer, typ: ItemType) -> Option<Box<StateFn>>{
[INFO] [stdout] 601 + fn state_field_or_variable(l: &mut Lexer, typ: ItemType) -> Option<Box<dyn StateFn>>{
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parse/lex.rs:303:49
[INFO] [stdout]     |
[INFO] [stdout] 303 |     fn scan(&self, l: &mut Lexer) -> Option<Box<StateFn>>;
[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 -     fn scan(&self, l: &mut Lexer) -> Option<Box<StateFn>>;
[INFO] [stdout] 303 +     fn scan(&self, l: &mut Lexer) -> Option<Box<dyn StateFn>>;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parse/lex.rs:308:49
[INFO] [stdout]     |
[INFO] [stdout] 308 |     fn scan(&self, l: &mut Lexer) -> Option<Box<StateFn>>{
[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] 308 -     fn scan(&self, l: &mut Lexer) -> Option<Box<StateFn>>{
[INFO] [stdout] 308 +     fn scan(&self, l: &mut Lexer) -> Option<Box<dyn StateFn>>{
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parse/lex.rs:333:46
[INFO] [stdout]     |
[INFO] [stdout] 333 |     fn scan(&self, l:&mut Lexer)->Option<Box<StateFn>>{
[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] 333 -     fn scan(&self, l:&mut Lexer)->Option<Box<StateFn>>{
[INFO] [stdout] 333 +     fn scan(&self, l:&mut Lexer)->Option<Box<dyn StateFn>>{
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parse/lex.rs:347:46
[INFO] [stdout]     |
[INFO] [stdout] 347 |     fn scan(&self, l:&mut Lexer)->Option<Box<StateFn>>{
[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] 347 -     fn scan(&self, l:&mut Lexer)->Option<Box<StateFn>>{
[INFO] [stdout] 347 +     fn scan(&self, l:&mut Lexer)->Option<Box<dyn StateFn>>{
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parse/lex.rs:356:46
[INFO] [stdout]     |
[INFO] [stdout] 356 |     fn scan(&self, l:&mut Lexer)->Option<Box<StateFn>>{
[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] 356 -     fn scan(&self, l:&mut Lexer)->Option<Box<StateFn>>{
[INFO] [stdout] 356 +     fn scan(&self, l:&mut Lexer)->Option<Box<dyn StateFn>>{
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parse/lex.rs:384:46
[INFO] [stdout]     |
[INFO] [stdout] 384 |     fn scan(&self, l:&mut Lexer)->Option<Box<StateFn>>{
[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] 384 -     fn scan(&self, l:&mut Lexer)->Option<Box<StateFn>>{
[INFO] [stdout] 384 +     fn scan(&self, l:&mut Lexer)->Option<Box<dyn StateFn>>{
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parse/lex.rs:407:46
[INFO] [stdout]     |
[INFO] [stdout] 407 |     fn scan(&self, l:&mut Lexer)->Option<Box<StateFn>>{
[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] 407 -     fn scan(&self, l:&mut Lexer)->Option<Box<StateFn>>{
[INFO] [stdout] 407 +     fn scan(&self, l:&mut Lexer)->Option<Box<dyn StateFn>>{
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parse/lex.rs:497:48
[INFO] [stdout]     |
[INFO] [stdout] 497 |     fn scan(&self, l:&mut Lexer) -> Option<Box<StateFn>>{
[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] 497 -     fn scan(&self, l:&mut Lexer) -> Option<Box<StateFn>>{
[INFO] [stdout] 497 +     fn scan(&self, l:&mut Lexer) -> Option<Box<dyn StateFn>>{
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parse/lex.rs:533:48
[INFO] [stdout]     |
[INFO] [stdout] 533 |     fn scan(&self, l:&mut Lexer) -> Option<Box<StateFn>>{
[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] 533 -     fn scan(&self, l:&mut Lexer) -> Option<Box<StateFn>>{
[INFO] [stdout] 533 +     fn scan(&self, l:&mut Lexer) -> Option<Box<dyn StateFn>>{
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parse/lex.rs:552:48
[INFO] [stdout]     |
[INFO] [stdout] 552 |     fn scan(&self, l:&mut Lexer) -> Option<Box<StateFn>>{
[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] 552 -     fn scan(&self, l:&mut Lexer) -> Option<Box<StateFn>>{
[INFO] [stdout] 552 +     fn scan(&self, l:&mut Lexer) -> Option<Box<dyn StateFn>>{
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parse/lex.rs:562:48
[INFO] [stdout]     |
[INFO] [stdout] 562 |     fn scan(&self, l:&mut Lexer) -> Option<Box<StateFn>>{
[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] 562 -     fn scan(&self, l:&mut Lexer) -> Option<Box<StateFn>>{
[INFO] [stdout] 562 +     fn scan(&self, l:&mut Lexer) -> Option<Box<dyn StateFn>>{
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parse/lex.rs:596:48
[INFO] [stdout]     |
[INFO] [stdout] 596 |     fn scan(&self, l:&mut Lexer) -> Option<Box<StateFn>>{
[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] 596 -     fn scan(&self, l:&mut Lexer) -> Option<Box<StateFn>>{
[INFO] [stdout] 596 +     fn scan(&self, l:&mut Lexer) -> Option<Box<dyn StateFn>>{
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parse/lex.rs:629:48
[INFO] [stdout]     |
[INFO] [stdout] 629 |     fn scan(&self, l:&mut Lexer) -> Option<Box<StateFn>>{
[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] 629 -     fn scan(&self, l:&mut Lexer) -> Option<Box<StateFn>>{
[INFO] [stdout] 629 +     fn scan(&self, l:&mut Lexer) -> Option<Box<dyn StateFn>>{
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parse/lex.rs:659:48
[INFO] [stdout]     |
[INFO] [stdout] 659 |     fn scan(&self, l:&mut Lexer) -> Option<Box<StateFn>>{
[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] 659 -     fn scan(&self, l:&mut Lexer) -> Option<Box<StateFn>>{
[INFO] [stdout] 659 +     fn scan(&self, l:&mut Lexer) -> Option<Box<dyn StateFn>>{
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `(dyn node::Node + 'static)` cannot be known at compilation time
[INFO] [stdout]   --> src/parse/node.rs:40:20
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn match_node<U, F:Fn(Node) -> U>(node: &NodeType, f:F) -> Option<String>{
[INFO] [stdout]    |                    ^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]    |
[INFO] [stdout]    = help: within `((dyn node::Node + 'static),)`, the trait `Sized` is not implemented for `(dyn node::Node + 'static)`
[INFO] [stdout]    = note: required because it appears within the type `((dyn node::Node + 'static),)`
[INFO] [stdout] note: required by a bound in `Fn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `parse` due to 2 previous errors; 25 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "0a38c06abb2922687536c55416897338a1876ad12b87896d1c22364b67c9acd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a38c06abb2922687536c55416897338a1876ad12b87896d1c22364b67c9acd0", kill_on_drop: false }`
[INFO] [stdout] 0a38c06abb2922687536c55416897338a1876ad12b87896d1c22364b67c9acd0