[INFO] cloning repository https://github.com/akky2501/Ruml
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/akky2501/Ruml" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakky2501%2FRuml", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakky2501%2FRuml'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cb84680a5dec0dde3d2fb0718267528f27fd9931
[INFO] building akky2501/Ruml against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakky2501%2FRuml" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/akky2501/Ruml on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/akky2501/Ruml
[INFO] finished tweaking git repo https://github.com/akky2501/Ruml
[INFO] tweaked toml for git repo https://github.com/akky2501/Ruml written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/akky2501/Ruml 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pom v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3c6645ba49033bbf0a2427dcdc30c232aef70a54ac83c090d73b8a8f2f219c8
[INFO] running `Command { std: "docker" "start" "-a" "a3c6645ba49033bbf0a2427dcdc30c232aef70a54ac83c090d73b8a8f2f219c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3c6645ba49033bbf0a2427dcdc30c232aef70a54ac83c090d73b8a8f2f219c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3c6645ba49033bbf0a2427dcdc30c232aef70a54ac83c090d73b8a8f2f219c8", kill_on_drop: false }`
[INFO] [stdout] a3c6645ba49033bbf0a2427dcdc30c232aef70a54ac83c090d73b8a8f2f219c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 661d7d233b72a25f8eb8fc32940746d1b96c2ea75f8f6ca8b883b7b0fff81e45
[INFO] running `Command { std: "docker" "start" "-a" "661d7d233b72a25f8eb8fc32940746d1b96c2ea75f8f6ca8b883b7b0fff81e45", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling pom v1.0.1
[INFO] [stderr]    Compiling lazy_static v0.2.8
[INFO] [stderr]    Compiling Ruml 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, box_patterns)]
[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/parse.rs:74:74
[INFO] [stdout]    |
[INFO] [stdout] 74 |                 Ast::Let{ name:(name, Type::Var(gen_var_count())), expr: box expr, cont: box Ast::Unit, type_: Type::None}
[INFO] [stdout]    |                                                                          ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 74 |                 Ast::Let{ name:(name, Type::Var(gen_var_count())), expr: Box::new(expr), cont: box Ast::Unit, type_: Type::None}
[INFO] [stdout]    |                                                                          ~~~~~~~~~    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/parse.rs:74:90
[INFO] [stdout]    |
[INFO] [stdout] 74 |                 Ast::Let{ name:(name, Type::Var(gen_var_count())), expr: box expr, cont: box Ast::Unit, type_: Type::None}
[INFO] [stdout]    |                                                                                          ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 74 |                 Ast::Let{ name:(name, Type::Var(gen_var_count())), expr: box expr, cont: Box::new(Ast::Unit), type_: Type::None}
[INFO] [stdout]    |                                                                                          ~~~~~~~~~         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/parse.rs:78:43
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 Ast::LetRec{ funcs, cont: box Ast::Unit , type_: Type::None}
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 Ast::LetRec{ funcs, cont: Box::new(Ast::Unit) , type_: Type::None}
[INFO] [stdout]    |                                           ~~~~~~~~~         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/parse.rs:83:39
[INFO] [stdout]    |
[INFO] [stdout] 83 | ...                   expr: box expr, cont: box Ast::Unit, type_: Type::None}
[INFO] [stdout]    |                             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 83 |                                 expr: Box::new(expr), cont: box Ast::Unit, type_: Type::None}
[INFO] [stdout]    |                                       ~~~~~~~~~    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/parse.rs:83:55
[INFO] [stdout]    |
[INFO] [stdout] 83 | ...                   expr: box expr, cont: box Ast::Unit, type_: Type::None}
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 83 |                                 expr: box expr, cont: Box::new(Ast::Unit), type_: Type::None}
[INFO] [stdout]    |                                                       ~~~~~~~~~         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse.rs:116:30
[INFO] [stdout]     |
[INFO] [stdout] 116 |             TypeAst::Func(t, box r)
[INFO] [stdout]     |                              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 116 |             TypeAst::Func(t, Box::new(r))
[INFO] [stdout]     |                              ~~~~~~~~~ +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse.rs:189:31
[INFO] [stdout]     |
[INFO] [stdout] 189 |             Ast::Logical{lhs: box lhs, op, rhs: box rhs, type_: Type::None}
[INFO] [stdout]     |                               ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 189 |             Ast::Logical{lhs: Box::new(lhs), op, rhs: box rhs, type_: Type::None}
[INFO] [stdout]     |                               ~~~~~~~~~   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse.rs:189:49
[INFO] [stdout]     |
[INFO] [stdout] 189 |             Ast::Logical{lhs: box lhs, op, rhs: box rhs, type_: Type::None}
[INFO] [stdout]     |                                                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 189 |             Ast::Logical{lhs: box lhs, op, rhs: Box::new(rhs), type_: Type::None}
[INFO] [stdout]     |                                                 ~~~~~~~~~   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse.rs:200:31
[INFO] [stdout]     |
[INFO] [stdout] 200 |             Ast::Logical{lhs: box lhs, op, rhs: box rhs, type_: Type::None}
[INFO] [stdout]     |                               ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 200 |             Ast::Logical{lhs: Box::new(lhs), op, rhs: box rhs, type_: Type::None}
[INFO] [stdout]     |                               ~~~~~~~~~   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse.rs:200:49
[INFO] [stdout]     |
[INFO] [stdout] 200 |             Ast::Logical{lhs: box lhs, op, rhs: box rhs, type_: Type::None}
[INFO] [stdout]     |                                                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 200 |             Ast::Logical{lhs: box lhs, op, rhs: Box::new(rhs), type_: Type::None}
[INFO] [stdout]     |                                                 ~~~~~~~~~   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse.rs:217:32
[INFO] [stdout]     |
[INFO] [stdout] 217 |             Ast::BinaryOp{lhs: box lhs, op, rhs: box rhs, type_: Type::None}
[INFO] [stdout]     |                                ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 217 |             Ast::BinaryOp{lhs: Box::new(lhs), op, rhs: box rhs, type_: Type::None}
[INFO] [stdout]     |                                ~~~~~~~~~   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse.rs:217:50
[INFO] [stdout]     |
[INFO] [stdout] 217 |             Ast::BinaryOp{lhs: box lhs, op, rhs: box rhs, type_: Type::None}
[INFO] [stdout]     |                                                  ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 217 |             Ast::BinaryOp{lhs: box lhs, op, rhs: Box::new(rhs), type_: Type::None}
[INFO] [stdout]     |                                                  ~~~~~~~~~   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse.rs:229:36
[INFO] [stdout]     |
[INFO] [stdout] 229 |             Ast::UnaryOp{op, expr: box expr, type_: Type::None}
[INFO] [stdout]     |                                    ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 229 |             Ast::UnaryOp{op, expr: Box::new(expr), type_: Type::None}
[INFO] [stdout]     |                                    ~~~~~~~~~    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse.rs:250:22
[INFO] [stdout]     |
[INFO] [stdout] 250 |                 Some(box Ast::Tuple(args, Type::None))
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 250 |                 Some(Box::new(Ast::Tuple(args, Type::None)))
[INFO] [stdout]     |                      ~~~~~~~~~                            +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse.rs:263:31
[INFO] [stdout]     |
[INFO] [stdout] 263 |             Ast::Apply{ func: box func, args, type_: Type::None}
[INFO] [stdout]     |                               ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 263 |             Ast::Apply{ func: Box::new(func), args, type_: Type::None}
[INFO] [stdout]     |                               ~~~~~~~~~    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse.rs:272:48
[INFO] [stdout]     |
[INFO] [stdout] 272 |     .map(|((cond, then), else_)| Ast::If{cond: box cond, then: box then, else_: box else_, type_: Type::None} )
[INFO] [stdout]     |                                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 272 |     .map(|((cond, then), else_)| Ast::If{cond: Box::new(cond), then: box then, else_: box else_, type_: Type::None} )
[INFO] [stdout]     |                                                ~~~~~~~~~    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse.rs:272:64
[INFO] [stdout]     |
[INFO] [stdout] 272 |     .map(|((cond, then), else_)| Ast::If{cond: box cond, then: box then, else_: box else_, type_: Type::None} )
[INFO] [stdout]     |                                                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 272 |     .map(|((cond, then), else_)| Ast::If{cond: box cond, then: Box::new(then), else_: box else_, type_: Type::None} )
[INFO] [stdout]     |                                                                ~~~~~~~~~    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse.rs:272:81
[INFO] [stdout]     |
[INFO] [stdout] 272 |     .map(|((cond, then), else_)| Ast::If{cond: box cond, then: box then, else_: box else_, type_: Type::None} )
[INFO] [stdout]     |                                                                                 ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 272 |     .map(|((cond, then), else_)| Ast::If{cond: box cond, then: box then, else_: Box::new(else_), type_: Type::None} )
[INFO] [stdout]     |                                                                                 ~~~~~~~~~     +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse.rs:277:43
[INFO] [stdout]     |
[INFO] [stdout] 277 |     .map(|(expr, arms)| Ast::Match{ expr: box expr, arms, type_: Type::None}) 
[INFO] [stdout]     |                                           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 277 |     .map(|(expr, arms)| Ast::Match{ expr: Box::new(expr), arms, type_: Type::None}) 
[INFO] [stdout]     |                                           ~~~~~~~~~    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse.rs:373:99
[INFO] [stdout]     |
[INFO] [stdout] 373 | ...   .map(|((name, expr), cont)| Ast::Let{ name: (name, Type::Var(gen_var_count())), expr: box expr, cont: box cont, type_: Type::None});
[INFO] [stdout]     |                                                                                             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 373 |             .map(|((name, expr), cont)| Ast::Let{ name: (name, Type::Var(gen_var_count())), expr: Box::new(expr), cont: box cont, type_: Type::None});
[INFO] [stdout]     |                                                                                                   ~~~~~~~~~    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse.rs:373:115
[INFO] [stdout]     |
[INFO] [stdout] 373 | ...   .map(|((name, expr), cont)| Ast::Let{ name: (name, Type::Var(gen_var_count())), expr: box expr, cont: box cont, type_: Type::None});
[INFO] [stdout]     |                                                                                                             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 373 |             .map(|((name, expr), cont)| Ast::Let{ name: (name, Type::Var(gen_var_count())), expr: box expr, cont: Box::new(cont), type_: Type::None});
[INFO] [stdout]     |                                                                                                                   ~~~~~~~~~    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse.rs:376:60
[INFO] [stdout]     |
[INFO] [stdout] 376 |             .map(|(funcs, cont)| Ast::LetRec{ funcs, cont: box cont , type_: Type::None});
[INFO] [stdout]     |                                                            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 376 |             .map(|(funcs, cont)| Ast::LetRec{ funcs, cont: Box::new(cont) , type_: Type::None});
[INFO] [stdout]     |                                                            ~~~~~~~~~    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse.rs:380:61
[INFO] [stdout]     |
[INFO] [stdout] 380 | ...                   , expr: box expr, cont: box cont, type_: Type::None});
[INFO] [stdout]     |                               ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 380 |                                                     , expr: Box::new(expr), cont: box cont, type_: Type::None});
[INFO] [stdout]     |                                                             ~~~~~~~~~    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse.rs:380:77
[INFO] [stdout]     |
[INFO] [stdout] 380 | ...                   , expr: box expr, cont: box cont, type_: Type::None});
[INFO] [stdout]     |                                               ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 380 |                                                     , expr: box expr, cont: Box::new(cont), type_: Type::None});
[INFO] [stdout]     |                                                                             ~~~~~~~~~    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/mangling.rs:260:23
[INFO] [stdout]     |
[INFO] [stdout] 260 |             let ret = box convert_type(*ret, env);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 260 |             let ret = Box::new(convert_type(*ret, env));
[INFO] [stdout]     |                       ~~~~~~~~~                       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/parse.rs:356:20
[INFO] [stdout]     |
[INFO] [stdout] 356 | fn let_decl() -> P<((Id, Ast))> {
[INFO] [stdout]     |                    ^         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 356 - fn let_decl() -> P<((Id, Ast))> {
[INFO] [stdout] 356 + fn let_decl() -> P<(Id, Ast)> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/parse.rs:364:5
[INFO] [stdout]     |
[INFO] [stdout] 364 |     (head * ms1() * list(l, ms1()*seq("and")*ms1()))
[INFO] [stdout]     |     ^                                              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 364 -     (head * ms1() * list(l, ms1()*seq("and")*ms1()))
[INFO] [stdout] 364 +     head * ms1() * list(l, ms1()*seq("and")*ms1())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]  --> src/id.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | / lazy_static! {
[INFO] [stdout] 7 | |     static ref NEXT_COUNT: Mutex<usize> = Mutex::new(0);
[INFO] [stdout] 8 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]   = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]  --> src/id.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | / lazy_static! {
[INFO] [stdout] 7 | |     static ref NEXT_COUNT: Mutex<usize> = Mutex::new(0);
[INFO] [stdout] 8 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]   --> src/parse.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | / lazy_static! {
[INFO] [stdout] 24 | |     static ref RESERVED: HashSet<Id> = {
[INFO] [stdout] 25 | |         let mut s = HashSet::new();
[INFO] [stdout] 26 | |         s.insert(Id::new("let".to_string()));
[INFO] [stdout] ...  |
[INFO] [stdout] 42 | |     };
[INFO] [stdout] 43 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]   --> src/parse.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | / lazy_static! {
[INFO] [stdout] 24 | |     static ref RESERVED: HashSet<Id> = {
[INFO] [stdout] 25 | |         let mut s = HashSet::new();
[INFO] [stdout] 26 | |         s.insert(Id::new("let".to_string()));
[INFO] [stdout] ...  |
[INFO] [stdout] 42 | |     };
[INFO] [stdout] 43 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]   --> src/typing.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / lazy_static! {
[INFO] [stdout] 12 | |     static ref TYPE_VAR_NEXT_COUNT: Mutex<TypeId> = Mutex::new(0);
[INFO] [stdout] 13 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]   --> src/typing.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / lazy_static! {
[INFO] [stdout] 12 | |     static ref TYPE_VAR_NEXT_COUNT: Mutex<TypeId> = Mutex::new(0);
[INFO] [stdout] 13 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctor`
[INFO] [stdout]    --> src/mangling.rs:106:21
[INFO] [stdout]     |
[INFO] [stdout] 106 |         &mut Ctor { ref mut ctor, ref mut args , type_: _} => {
[INFO] [stdout]     |                     ^^^^^^^^^^^^ help: try ignoring the field: `ctor: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/mangling.rs:211:28
[INFO] [stdout]     |
[INFO] [stdout] 211 |         &mut DataDestruct{ ref mut data, ref mut args } => {
[INFO] [stdout]     |                            ^^^^^^^^^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/typing.rs:667:9
[INFO] [stdout]     |
[INFO] [stdout] 667 |         _ => unimplemented!(),
[INFO] [stdout]     |         ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/typing.rs:667:9
[INFO] [stdout]     |
[INFO] [stdout] 621 |         PatternAst::Wildcard(ref id) => {
[INFO] [stdout]     |         ---------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 625 |         PatternAst::Discard => Ok((Type::Var(gen_var_count()), vec![])),
[INFO] [stdout]     |         ------------------- matches some of the same values
[INFO] [stdout] 626 |         PatternAst::Unit => Ok((Type::Unit, vec![])),
[INFO] [stdout]     |         ---------------- matches some of the same values
[INFO] [stdout] 627 |         PatternAst::Int(_) => Ok((Type::Int, vec![])),
[INFO] [stdout]     |         ------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 667 |         _ => unimplemented!(),
[INFO] [stdout]     |         ^ ...and 3 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctor`
[INFO] [stdout]    --> src/typing.rs:692:21
[INFO] [stdout]     |
[INFO] [stdout] 692 |         &mut Ctor { ref mut ctor, ref mut args , ref mut type_} => {
[INFO] [stdout]     |                     ^^^^^^^^^^^^ help: try ignoring the field: `ctor: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_`
[INFO] [stdout]    --> src/typing.rs:737:68
[INFO] [stdout]     |
[INFO] [stdout] 737 |         &mut LetTuple { ref mut names, ref mut expr, ref mut cont, ref mut type_} =>  {
[INFO] [stdout]     |                                                                    ^^^^^^^^^^^^^ help: try ignoring the field: `type_: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> src/eval.rs:246:18
[INFO] [stdout]     |
[INFO] [stdout] 246 |         &Match { ref expr, ref arms , type_: _} => unimplemented!(),
[INFO] [stdout]     |                  ^^^^^^^^ help: try ignoring the field: `expr: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arms`
[INFO] [stdout]    --> src/eval.rs:246:28
[INFO] [stdout]     |
[INFO] [stdout] 246 |         &Match { ref expr, ref arms , type_: _} => unimplemented!(),
[INFO] [stdout]     |                            ^^^^^^^^ help: try ignoring the field: `arms: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `Ruml` (bin "Ruml") due to 26 previous errors; 15 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "661d7d233b72a25f8eb8fc32940746d1b96c2ea75f8f6ca8b883b7b0fff81e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "661d7d233b72a25f8eb8fc32940746d1b96c2ea75f8f6ca8b883b7b0fff81e45", kill_on_drop: false }`
[INFO] [stdout] 661d7d233b72a25f8eb8fc32940746d1b96c2ea75f8f6ca8b883b7b0fff81e45