[INFO] cloning repository https://github.com/Nyrox/experimental-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nyrox/experimental-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNyrox%2Fexperimental-lang", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9546bd7b7de756541a155165c2939df440e6ab6c
[INFO] checking Nyrox/experimental-lang against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNyrox%2Fexperimental-lang" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
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[INFO] validating manifest of git repo https://github.com/Nyrox/experimental-lang on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
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[INFO] started tweaking git repo https://github.com/Nyrox/experimental-lang
[INFO] finished tweaking git repo https://github.com/Nyrox/experimental-lang
[INFO] tweaked toml for git repo https://github.com/Nyrox/experimental-lang written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Nyrox/experimental-lang already has a lockfile, it will not be regenerated
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[INFO] [stderr]     Checking experimental-lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:179:48
[INFO] [stdout]     |
[INFO] [stdout] 179 |                         expr = Expr::Lambda(p, box expr);
[INFO] [stdout]     |                                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 179 |                         expr = Expr::Lambda(p, Box::new(expr));
[INFO] [stdout]     |                                                ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:385:51
[INFO] [stdout]     |
[INFO] [stdout] 385 |                 return Ok(Expr::LetBinding(ident, box bind_val, box body));
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 385 |                 return Ok(Expr::LetBinding(ident, Box::new(bind_val), box body));
[INFO] [stdout]     |                                                   ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:385:65
[INFO] [stdout]     |
[INFO] [stdout] 385 |                 return Ok(Expr::LetBinding(ident, box bind_val, box body));
[INFO] [stdout]     |                                                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 385 |                 return Ok(Expr::LetBinding(ident, box bind_val, Box::new(body)));
[INFO] [stdout]     |                                                                 ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:394:35
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 Expr::Conditional(box cond, box consequent, box alternate)
[INFO] [stdout]     |                                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 Expr::Conditional(Box::new(cond), box consequent, box alternate)
[INFO] [stdout]     |                                   ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:394:45
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 Expr::Conditional(box cond, box consequent, box alternate)
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 Expr::Conditional(box cond, Box::new(consequent), box alternate)
[INFO] [stdout]     |                                             ~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:394:61
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 Expr::Conditional(box cond, box consequent, box alternate)
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 Expr::Conditional(box cond, box consequent, Box::new(alternate))
[INFO] [stdout]     |                                                             ~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:413:39
[INFO] [stdout]     |
[INFO] [stdout] 413 |                 return Ok(Expr::Match(box expr, arms));
[INFO] [stdout]     |                                       ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 413 |                 return Ok(Expr::Match(Box::new(expr), arms));
[INFO] [stdout]     |                                       ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:421:43
[INFO] [stdout]     |
[INFO] [stdout] 421 |                 return Ok(Expr::Lambda(p, box body));
[INFO] [stdout]     |                                           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 421 |                 return Ok(Expr::Lambda(p, Box::new(body)));
[INFO] [stdout]     |                                           ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:478:45
[INFO] [stdout]     |
[INFO] [stdout] 478 |                     lhs = Expr::FieldAccess(box lhs, field);
[INFO] [stdout]     |                                             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 478 |                     lhs = Expr::FieldAccess(Box::new(lhs), field);
[INFO] [stdout]     |                                             ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:497:48
[INFO] [stdout]     |
[INFO] [stdout] 497 |                         _ => Expr::Application(box lhs, vec![rhs]),
[INFO] [stdout]     |                                                ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 497 |                         _ => Expr::Application(Box::new(lhs), vec![rhs]),
[INFO] [stdout]     |                                                ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:528:17
[INFO] [stdout]     |
[INFO] [stdout] 528 |                 box lhs,
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 528 |                 Box::new(lhs),
[INFO] [stdout]     |                 ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:529:17
[INFO] [stdout]     |
[INFO] [stdout] 529 |                 box rhs,
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 529 |                 Box::new(rhs),
[INFO] [stdout]     |                 ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:609:25
[INFO] [stdout]     |
[INFO] [stdout] 609 |             Ok(Ty::Func(box lhs, box self.parse_type()?))
[INFO] [stdout]     |                         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 609 |             Ok(Ty::Func(Box::new(lhs), box self.parse_type()?))
[INFO] [stdout]     |                         ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:609:34
[INFO] [stdout]     |
[INFO] [stdout] 609 |             Ok(Ty::Func(box lhs, box self.parse_type()?))
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 609 |             Ok(Ty::Func(box lhs, Box::new(self.parse_type()?)))
[INFO] [stdout]     |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:614:29
[INFO] [stdout]     |
[INFO] [stdout] 614 |                 Ok(Ty::List(box lhs))
[INFO] [stdout]     |                             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 614 |                 Ok(Ty::List(Box::new(lhs)))
[INFO] [stdout]     |                             ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:179:48
[INFO] [stdout]     |
[INFO] [stdout] 179 |                         expr = Expr::Lambda(p, box expr);
[INFO] [stdout]     |                                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 179 |                         expr = Expr::Lambda(p, Box::new(expr));
[INFO] [stdout]     |                                                ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:385:51
[INFO] [stdout]     |
[INFO] [stdout] 385 |                 return Ok(Expr::LetBinding(ident, box bind_val, box body));
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 385 |                 return Ok(Expr::LetBinding(ident, Box::new(bind_val), box body));
[INFO] [stdout]     |                                                   ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:385:65
[INFO] [stdout]     |
[INFO] [stdout] 385 |                 return Ok(Expr::LetBinding(ident, box bind_val, box body));
[INFO] [stdout]     |                                                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 385 |                 return Ok(Expr::LetBinding(ident, box bind_val, Box::new(body)));
[INFO] [stdout]     |                                                                 ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:394:35
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 Expr::Conditional(box cond, box consequent, box alternate)
[INFO] [stdout]     |                                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 Expr::Conditional(Box::new(cond), box consequent, box alternate)
[INFO] [stdout]     |                                   ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:394:45
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 Expr::Conditional(box cond, box consequent, box alternate)
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 Expr::Conditional(box cond, Box::new(consequent), box alternate)
[INFO] [stdout]     |                                             ~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:394:61
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 Expr::Conditional(box cond, box consequent, box alternate)
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 Expr::Conditional(box cond, box consequent, Box::new(alternate))
[INFO] [stdout]     |                                                             ~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:413:39
[INFO] [stdout]     |
[INFO] [stdout] 413 |                 return Ok(Expr::Match(box expr, arms));
[INFO] [stdout]     |                                       ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 413 |                 return Ok(Expr::Match(Box::new(expr), arms));
[INFO] [stdout]     |                                       ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:421:43
[INFO] [stdout]     |
[INFO] [stdout] 421 |                 return Ok(Expr::Lambda(p, box body));
[INFO] [stdout]     |                                           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 421 |                 return Ok(Expr::Lambda(p, Box::new(body)));
[INFO] [stdout]     |                                           ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:478:45
[INFO] [stdout]     |
[INFO] [stdout] 478 |                     lhs = Expr::FieldAccess(box lhs, field);
[INFO] [stdout]     |                                             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 478 |                     lhs = Expr::FieldAccess(Box::new(lhs), field);
[INFO] [stdout]     |                                             ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:497:48
[INFO] [stdout]     |
[INFO] [stdout] 497 |                         _ => Expr::Application(box lhs, vec![rhs]),
[INFO] [stdout]     |                                                ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 497 |                         _ => Expr::Application(Box::new(lhs), vec![rhs]),
[INFO] [stdout]     |                                                ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:528:17
[INFO] [stdout]     |
[INFO] [stdout] 528 |                 box lhs,
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 528 |                 Box::new(lhs),
[INFO] [stdout]     |                 ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:529:17
[INFO] [stdout]     |
[INFO] [stdout] 529 |                 box rhs,
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 529 |                 Box::new(rhs),
[INFO] [stdout]     |                 ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:609:25
[INFO] [stdout]     |
[INFO] [stdout] 609 |             Ok(Ty::Func(box lhs, box self.parse_type()?))
[INFO] [stdout]     |                         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 609 |             Ok(Ty::Func(Box::new(lhs), box self.parse_type()?))
[INFO] [stdout]     |                         ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:609:34
[INFO] [stdout]     |
[INFO] [stdout] 609 |             Ok(Ty::Func(box lhs, box self.parse_type()?))
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 609 |             Ok(Ty::Func(box lhs, Box::new(self.parse_type()?)))
[INFO] [stdout]     |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parser/recdec.rs:614:29
[INFO] [stdout]     |
[INFO] [stdout] 614 |                 Ok(Ty::List(box lhs))
[INFO] [stdout]     |                             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 614 |                 Ok(Ty::List(Box::new(lhs)))
[INFO] [stdout]     |                             ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:140:37
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 (ExprT::Conditional(box cond, box cons, box alt), ty.clone())
[INFO] [stdout]     |                                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 (ExprT::Conditional(Box::new(cond), box cons, box alt), ty.clone())
[INFO] [stdout]     |                                     ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:140:47
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 (ExprT::Conditional(box cond, box cons, box alt), ty.clone())
[INFO] [stdout]     |                                               ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 (ExprT::Conditional(box cond, Box::new(cons), box alt), ty.clone())
[INFO] [stdout]     |                                               ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:140:57
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 (ExprT::Conditional(box cond, box cons, box alt), ty.clone())
[INFO] [stdout]     |                                                         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 (ExprT::Conditional(box cond, box cons, Box::new(alt)), ty.clone())
[INFO] [stdout]     |                                                         ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:219:53
[INFO] [stdout]     |
[INFO] [stdout] 219 | ...                   ExprT::MatchSum(box (matchee_te, matched_ty), t_arms),
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 219 |                                     ExprT::MatchSum(Box::new((matchee_te, matched_ty)), t_arms),
[INFO] [stdout]     |                                                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:247:59
[INFO] [stdout]     |
[INFO] [stdout] 247 |                 rhs.map(|rhs| (ExprT::Lambda(p.0.clone(), box rhs), ty.clone()))
[INFO] [stdout]     |                                                           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 247 |                 rhs.map(|rhs| (ExprT::Lambda(p.0.clone(), Box::new(rhs)), ty.clone()))
[INFO] [stdout]     |                                                           ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:267:58
[INFO] [stdout]     |
[INFO] [stdout] 267 |                     ExprT::LetBinding(binding.0.clone(), box rhs, box body),
[INFO] [stdout]     |                                                          ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 267 |                     ExprT::LetBinding(binding.0.clone(), Box::new(rhs), box body),
[INFO] [stdout]     |                                                          ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:267:67
[INFO] [stdout]     |
[INFO] [stdout] 267 |                     ExprT::LetBinding(binding.0.clone(), box rhs, box body),
[INFO] [stdout]     |                                                                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 267 |                     ExprT::LetBinding(binding.0.clone(), box rhs, Box::new(body)),
[INFO] [stdout]     |                                                                   ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:452:55
[INFO] [stdout]     |
[INFO] [stdout] 452 |         .map(|(lhs, (exprs, rt))| (ExprT::Application(box lhs, exprs), rt.clone()))
[INFO] [stdout]     |                                                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 452 |         .map(|(lhs, (exprs, rt))| (ExprT::Application(Box::new(lhs), exprs), rt.clone()))
[INFO] [stdout]     |                                                       ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:508:37
[INFO] [stdout]     |
[INFO] [stdout] 508 |                 (ExprT::Conditional(box cond, box cons, box alt), rt)
[INFO] [stdout]     |                                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 508 |                 (ExprT::Conditional(Box::new(cond), box cons, box alt), rt)
[INFO] [stdout]     |                                     ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:508:47
[INFO] [stdout]     |
[INFO] [stdout] 508 |                 (ExprT::Conditional(box cond, box cons, box alt), rt)
[INFO] [stdout]     |                                               ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 508 |                 (ExprT::Conditional(box cond, Box::new(cons), box alt), rt)
[INFO] [stdout]     |                                               ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:508:57
[INFO] [stdout]     |
[INFO] [stdout] 508 |                 (ExprT::Conditional(box cond, box cons, box alt), rt)
[INFO] [stdout]     |                                                         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 508 |                 (ExprT::Conditional(box cond, box cons, Box::new(alt)), rt)
[INFO] [stdout]     |                                                         ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:527:65
[INFO] [stdout]     |
[INFO] [stdout] 527 |                     unifiedT.map(|finalT| (ExprT::BinaryOp(*op, box lhs.clone(), box rhs.clone()), finalT))
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 527 |                     unifiedT.map(|finalT| (ExprT::BinaryOp(*op, Box::new(lhs.clone()), box rhs.clone()), finalT))
[INFO] [stdout]     |                                                                 ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:527:82
[INFO] [stdout]     |
[INFO] [stdout] 527 |                     unifiedT.map(|finalT| (ExprT::BinaryOp(*op, box lhs.clone(), box rhs.clone()), finalT))
[INFO] [stdout]     |                                                                                  ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 527 |                     unifiedT.map(|finalT| (ExprT::BinaryOp(*op, box lhs.clone(), Box::new(rhs.clone())), finalT))
[INFO] [stdout]     |                                                                                  ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:547:55
[INFO] [stdout]     |
[INFO] [stdout] 547 |                 (ExprT::LetBinding(binding.0.clone(), box rhs, box body), bt)
[INFO] [stdout]     |                                                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 547 |                 (ExprT::LetBinding(binding.0.clone(), Box::new(rhs), box body), bt)
[INFO] [stdout]     |                                                       ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:547:64
[INFO] [stdout]     |
[INFO] [stdout] 547 |                 (ExprT::LetBinding(binding.0.clone(), box rhs, box body), bt)
[INFO] [stdout]     |                                                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 547 |                 (ExprT::LetBinding(binding.0.clone(), box rhs, Box::new(body)), bt)
[INFO] [stdout]     |                                                                ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:579:48
[INFO] [stdout]     |
[INFO] [stdout] 579 |             let e = ExprT::Lambda(p.0.clone(), box (r.0, r.1.clone()));
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 579 |             let e = ExprT::Lambda(p.0.clone(), Box::new((r.0, r.1.clone())));
[INFO] [stdout]     |                                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:613:41
[INFO] [stdout]     |
[INFO] [stdout] 613 | ...                   box (te, Type::user_type(th.clone(), ty_params)),
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 613 |                                         Box::new((te, Type::user_type(th.clone(), ty_params))),
[INFO] [stdout]     |                                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:645:48
[INFO] [stdout]     |
[INFO] [stdout] 645 | ...                   ExprT::FieldAccess(box (te, Type::tuple(ty_params)), index),
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 645 |                             ExprT::FieldAccess(Box::new((te, Type::tuple(ty_params))), index),
[INFO] [stdout]     |                                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:140:37
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 (ExprT::Conditional(box cond, box cons, box alt), ty.clone())
[INFO] [stdout]     |                                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 (ExprT::Conditional(Box::new(cond), box cons, box alt), ty.clone())
[INFO] [stdout]     |                                     ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:140:47
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 (ExprT::Conditional(box cond, box cons, box alt), ty.clone())
[INFO] [stdout]     |                                               ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 (ExprT::Conditional(box cond, Box::new(cons), box alt), ty.clone())
[INFO] [stdout]     |                                               ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:140:57
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 (ExprT::Conditional(box cond, box cons, box alt), ty.clone())
[INFO] [stdout]     |                                                         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 (ExprT::Conditional(box cond, box cons, Box::new(alt)), ty.clone())
[INFO] [stdout]     |                                                         ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:219:53
[INFO] [stdout]     |
[INFO] [stdout] 219 | ...                   ExprT::MatchSum(box (matchee_te, matched_ty), t_arms),
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 219 |                                     ExprT::MatchSum(Box::new((matchee_te, matched_ty)), t_arms),
[INFO] [stdout]     |                                                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:247:59
[INFO] [stdout]     |
[INFO] [stdout] 247 |                 rhs.map(|rhs| (ExprT::Lambda(p.0.clone(), box rhs), ty.clone()))
[INFO] [stdout]     |                                                           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 247 |                 rhs.map(|rhs| (ExprT::Lambda(p.0.clone(), Box::new(rhs)), ty.clone()))
[INFO] [stdout]     |                                                           ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:267:58
[INFO] [stdout]     |
[INFO] [stdout] 267 |                     ExprT::LetBinding(binding.0.clone(), box rhs, box body),
[INFO] [stdout]     |                                                          ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 267 |                     ExprT::LetBinding(binding.0.clone(), Box::new(rhs), box body),
[INFO] [stdout]     |                                                          ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:267:67
[INFO] [stdout]     |
[INFO] [stdout] 267 |                     ExprT::LetBinding(binding.0.clone(), box rhs, box body),
[INFO] [stdout]     |                                                                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 267 |                     ExprT::LetBinding(binding.0.clone(), box rhs, Box::new(body)),
[INFO] [stdout]     |                                                                   ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:452:55
[INFO] [stdout]     |
[INFO] [stdout] 452 |         .map(|(lhs, (exprs, rt))| (ExprT::Application(box lhs, exprs), rt.clone()))
[INFO] [stdout]     |                                                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 452 |         .map(|(lhs, (exprs, rt))| (ExprT::Application(Box::new(lhs), exprs), rt.clone()))
[INFO] [stdout]     |                                                       ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:508:37
[INFO] [stdout]     |
[INFO] [stdout] 508 |                 (ExprT::Conditional(box cond, box cons, box alt), rt)
[INFO] [stdout]     |                                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 508 |                 (ExprT::Conditional(Box::new(cond), box cons, box alt), rt)
[INFO] [stdout]     |                                     ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:508:47
[INFO] [stdout]     |
[INFO] [stdout] 508 |                 (ExprT::Conditional(box cond, box cons, box alt), rt)
[INFO] [stdout]     |                                               ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 508 |                 (ExprT::Conditional(box cond, Box::new(cons), box alt), rt)
[INFO] [stdout]     |                                               ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:508:57
[INFO] [stdout]     |
[INFO] [stdout] 508 |                 (ExprT::Conditional(box cond, box cons, box alt), rt)
[INFO] [stdout]     |                                                         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 508 |                 (ExprT::Conditional(box cond, box cons, Box::new(alt)), rt)
[INFO] [stdout]     |                                                         ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:527:65
[INFO] [stdout]     |
[INFO] [stdout] 527 |                     unifiedT.map(|finalT| (ExprT::BinaryOp(*op, box lhs.clone(), box rhs.clone()), finalT))
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 527 |                     unifiedT.map(|finalT| (ExprT::BinaryOp(*op, Box::new(lhs.clone()), box rhs.clone()), finalT))
[INFO] [stdout]     |                                                                 ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:527:82
[INFO] [stdout]     |
[INFO] [stdout] 527 |                     unifiedT.map(|finalT| (ExprT::BinaryOp(*op, box lhs.clone(), box rhs.clone()), finalT))
[INFO] [stdout]     |                                                                                  ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 527 |                     unifiedT.map(|finalT| (ExprT::BinaryOp(*op, box lhs.clone(), Box::new(rhs.clone())), finalT))
[INFO] [stdout]     |                                                                                  ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:547:55
[INFO] [stdout]     |
[INFO] [stdout] 547 |                 (ExprT::LetBinding(binding.0.clone(), box rhs, box body), bt)
[INFO] [stdout]     |                                                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 547 |                 (ExprT::LetBinding(binding.0.clone(), Box::new(rhs), box body), bt)
[INFO] [stdout]     |                                                       ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:547:64
[INFO] [stdout]     |
[INFO] [stdout] 547 |                 (ExprT::LetBinding(binding.0.clone(), box rhs, box body), bt)
[INFO] [stdout]     |                                                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 547 |                 (ExprT::LetBinding(binding.0.clone(), box rhs, Box::new(body)), bt)
[INFO] [stdout]     |                                                                ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:579:48
[INFO] [stdout]     |
[INFO] [stdout] 579 |             let e = ExprT::Lambda(p.0.clone(), box (r.0, r.1.clone()));
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 579 |             let e = ExprT::Lambda(p.0.clone(), Box::new((r.0, r.1.clone())));
[INFO] [stdout]     |                                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:613:41
[INFO] [stdout]     |
[INFO] [stdout] 613 | ...                   box (te, Type::user_type(th.clone(), ty_params)),
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 613 |                                         Box::new((te, Type::user_type(th.clone(), ty_params))),
[INFO] [stdout]     |                                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/typecheck/mod.rs:645:48
[INFO] [stdout]     |
[INFO] [stdout] 645 | ...                   ExprT::FieldAccess(box (te, Type::tuple(ty_params)), index),
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 645 |                             ExprT::FieldAccess(Box::new((te, Type::tuple(ty_params))), index),
[INFO] [stdout]     |                                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/main.rs:45:93
[INFO] [stdout]    |
[INFO] [stdout] 45 | ...                   ast::untyped::Expr::Lambda(Spanned("()".into(), Span::empty()), box ast),
[INFO] [stdout]    |                                                                                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 45 |                             ast::untyped::Expr::Lambda(Spanned("()".into(), Span::empty()), Box::new(ast)),
[INFO] [stdout]    |                                                                                             ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/main.rs:45:93
[INFO] [stdout]    |
[INFO] [stdout] 45 | ...                   ast::untyped::Expr::Lambda(Spanned("()".into(), Span::empty()), box ast),
[INFO] [stdout]    |                                                                                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 45 |                             ast::untyped::Expr::Lambda(Spanned("()".into(), Span::empty()), Box::new(ast)),
[INFO] [stdout]    |                                                                                             ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Position`, `Span`
[INFO] [stdout]  --> src/parser/recdec.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::{Position, Span, Spanned, Token};
[INFO] [stdout]   |             ^^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/parser/recdec.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::ast::untyped::{self, *};
[INFO] [stdout]   |                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Position`, `Span`
[INFO] [stdout]  --> src/parser/recdec.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::{Position, Span, Spanned, Token};
[INFO] [stdout]   |             ^^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/parser/recdec.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::ast::untyped::{self, *};
[INFO] [stdout]   |                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/interpret.rs:274:51
[INFO] [stdout]     |
[INFO] [stdout] 274 | ...                   Operator::BinOpMod => (l % r),
[INFO] [stdout]     |                                             ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 274 -                             Operator::BinOpMod => (l % r),
[INFO] [stdout] 274 +                             Operator::BinOpMod => l % r,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/typecheck/mod.rs:469:30
[INFO] [stdout]     |
[INFO] [stdout] 469 |             Type::ErrType => (0),
[INFO] [stdout]     |                              ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 469 -             Type::ErrType => (0),
[INFO] [stdout] 469 +             Type::ErrType => 0,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `untyped::Operator`
[INFO] [stdout]    --> src/typecheck/mod.rs:522:17
[INFO] [stdout]     |
[INFO] [stdout] 522 |             use untyped::Operator;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `untyped::TypeDeclaration`
[INFO] [stdout]    --> src/typecheck/mod.rs:755:9
[INFO] [stdout]     |
[INFO] [stdout] 755 |     use untyped::TypeDeclaration;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/interpret.rs:274:51
[INFO] [stdout]     |
[INFO] [stdout] 274 | ...                   Operator::BinOpMod => (l % r),
[INFO] [stdout]     |                                             ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 274 -                             Operator::BinOpMod => (l % r),
[INFO] [stdout] 274 +                             Operator::BinOpMod => l % r,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/typecheck/mod.rs:469:30
[INFO] [stdout]     |
[INFO] [stdout] 469 |             Type::ErrType => (0),
[INFO] [stdout]     |                              ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 469 -             Type::ErrType => (0),
[INFO] [stdout] 469 +             Type::ErrType => 0,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `untyped::Operator`
[INFO] [stdout]    --> src/typecheck/mod.rs:522:17
[INFO] [stdout]     |
[INFO] [stdout] 522 |             use untyped::Operator;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `untyped::TypeDeclaration`
[INFO] [stdout]    --> src/typecheck/mod.rs:755:9
[INFO] [stdout]     |
[INFO] [stdout] 755 |     use untyped::TypeDeclaration;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `iterator_fold_self` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(iterator_fold_self)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `iterator_fold_self` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(iterator_fold_self)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::Borrow`
[INFO] [stdout]   --> src/main.rs:14:25
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::{error::Error, borrow::Borrow};
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::Borrow`
[INFO] [stdout]   --> src/main.rs:14:25
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::{error::Error, borrow::Borrow};
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 35 previous errors; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 35 previous errors; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `experimental-lang` (bin "experimental-lang" test) due to 36 previous errors; 8 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `experimental-lang` (bin "experimental-lang") due to 36 previous errors; 8 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "e1de825e5bd7dddfd28957ab13d949ac0636ca5a3c7919052b4e80a8ac0d3f85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1de825e5bd7dddfd28957ab13d949ac0636ca5a3c7919052b4e80a8ac0d3f85", kill_on_drop: false }`
[INFO] [stdout] e1de825e5bd7dddfd28957ab13d949ac0636ca5a3c7919052b4e80a8ac0d3f85
