[INFO] updating cached repository Marwes/haskell-compiler
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Marwes/haskell-compiler
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Marwes/haskell-compiler" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/Marwes/haskell-compiler"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/Marwes/haskell-compiler'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Marwes/haskell-compiler" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/Marwes/haskell-compiler"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/Marwes/haskell-compiler'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 997a8b64ea57d27a547caba964081b680b1c5152
[INFO] sha for GitHub repo Marwes/haskell-compiler: 997a8b64ea57d27a547caba964081b680b1c5152
[INFO] validating manifest of Marwes/haskell-compiler on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Marwes/haskell-compiler on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Marwes/haskell-compiler
[INFO] finished frobbing Marwes/haskell-compiler
[INFO] frobbed toml for Marwes/haskell-compiler written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/Marwes/haskell-compiler/Cargo.toml
[INFO] started frobbing Marwes/haskell-compiler
[INFO] finished frobbing Marwes/haskell-compiler
[INFO] frobbed toml for Marwes/haskell-compiler written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/Marwes/haskell-compiler/Cargo.toml
[INFO] crate Marwes/haskell-compiler already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Marwes/haskell-compiler against master#435236b8877cdb98c82eaebfb7887782277265c5 for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-6/master#435236b8877cdb98c82eaebfb7887782277265c5:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/Marwes/haskell-compiler:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9e7b74f65adf101d9be0b17703092921df216a5be17e2f750112b7511f87f657
[INFO] running `"docker" "start" "-a" "9e7b74f65adf101d9be0b17703092921df216a5be17e2f750112b7511f87f657"`
[INFO] [stderr]     Checking haskell-compiler v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/compiler.rs:552:33
[INFO] [stderr]     |
[INFO] [stderr] 552 |     fn scope(&mut self, f: &mut FnMut(&mut Compiler)) {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Compiler)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/compiler.rs:903:52
[INFO] [stderr]     |
[INFO] [stderr] 903 |     fn walk_classes<T>(&self, class: Name, f: &mut FnMut(&[TypeDeclaration<Name>]) -> Option<T>) -> Option<T> {
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&[TypeDeclaration<Name>]) -> Option<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Compiler` is imported redundantly
[INFO] [stderr]     --> src/compiler.rs:1066:9
[INFO] [stderr]      |
[INFO] [stderr] 353  | / pub struct Compiler<'a> {
[INFO] [stderr] 354  | |     ///Hashmap containging class names mapped to the functions it contains
[INFO] [stderr] 355  | |     pub instance_dictionaries: Vec<(Vec<(Name, Type<Name>)>, Vec<usize>)>,
[INFO] [stderr] 356  | |     pub stack_size : usize,
[INFO] [stderr] ...    |
[INFO] [stderr] 361  | |     context: Vec<Constraint<Name>>
[INFO] [stderr] 362  | | }
[INFO] [stderr]      | |_- the item `Compiler` is already defined here
[INFO] [stderr] ...
[INFO] [stderr] 1066 |       use compiler::Compiler;
[INFO] [stderr]      |           ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/typecheck.rs:92:26
[INFO] [stderr]    |
[INFO] [stderr] 92 |     assemblies: Vec<&'a (DataTypes + 'a)>,
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^ help: use `dyn`: `dyn DataTypes + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:139:39
[INFO] [stderr]     |
[INFO] [stderr] 139 |     fn each_binding(&self, func: &mut FnMut(&[Binding<Name>], (usize, usize)));
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&[Binding<Name>], (usize, usize))`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:156:39
[INFO] [stderr]     |
[INFO] [stderr] 156 |     fn each_binding(&self, func: &mut FnMut(&[Binding<Name>], (usize, usize))) {
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&[Binding<Name>], (usize, usize))`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:197:39
[INFO] [stderr]     |
[INFO] [stderr] 197 |     fn each_binding(&self, func: &mut FnMut(&[Binding<Name>], (usize, usize))) {
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&[Binding<Name>], (usize, usize))`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:270:44
[INFO] [stderr]     |
[INFO] [stderr] 270 |     pub fn add_types(&mut self, types: &'a DataTypes) {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn DataTypes`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:889:30
[INFO] [stderr]     |
[INFO] [stderr] 889 |             , bindings: &mut Bindings
[INFO] [stderr]     |                              ^^^^^^^^ help: use `dyn`: `dyn Bindings`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:957:84
[INFO] [stderr]     |
[INFO] [stderr] 957 |     fn typecheck_local_bindings(&mut self, subs: &mut Substitution, bindings: &mut Bindings) {
[INFO] [stderr]     |                                                                                    ^^^^^^^^ help: use `dyn`: `dyn Bindings`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:962:107
[INFO] [stderr]     |
[INFO] [stderr] 962 |     fn typecheck_global_bindings(&mut self, start_var_age: isize, subs: &mut Substitution, bindings: &mut Bindings) {
[INFO] [stderr]     |                                                                                                           ^^^^^^^^ help: use `dyn`: `dyn Bindings`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/typecheck.rs:1463:27
[INFO] [stderr]      |
[INFO] [stderr] 1463 | fn build_graph(bindings: &Bindings) -> Graph<(usize, usize)> {
[INFO] [stderr]      |                           ^^^^^^^^ help: use `dyn`: `dyn Bindings`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/typecheck.rs:1514:48
[INFO] [stderr]      |
[INFO] [stderr] 1514 | fn each_type_<Id>(typ: &Type<Id>, var_fn: &mut FnMut(&TypeVariable), op_fn: &mut FnMut(&TypeConstructor<Id>)) {
[INFO] [stderr]      |                                                ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&TypeVariable)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/typecheck.rs:1514:82
[INFO] [stderr]      |
[INFO] [stderr] 1514 | fn each_type_<Id>(typ: &Type<Id>, var_fn: &mut FnMut(&TypeVariable), op_fn: &mut FnMut(&TypeConstructor<Id>)) {
[INFO] [stderr]      |                                                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&TypeConstructor<Id>)`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `rename_modules` is imported redundantly
[INFO] [stderr]     --> src/typecheck.rs:1629:9
[INFO] [stderr]      |
[INFO] [stderr] 12   | use renamer::*;
[INFO] [stderr]      |     ---------- the item `rename_modules` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 1629 |     use renamer::rename_modules;
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/parser.rs:79:1
[INFO] [stderr]    |
[INFO] [stderr] 79 | / macro_rules! expect1 {
[INFO] [stderr] 80 | |     ($e: expr, $p: ident ($x: ident)) => ({
[INFO] [stderr] 81 | |         match $e.next().token {
[INFO] [stderr] 82 | |             $p($x) => $x,
[INFO] [stderr] ...  |
[INFO] [stderr] 85 | |     })
[INFO] [stderr] 86 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/parser.rs:88:1
[INFO] [stderr]    |
[INFO] [stderr] 88 | / macro_rules! matches {
[INFO] [stderr] 89 | |     ($e: expr, $p: pat) => (
[INFO] [stderr] 90 | |         match $e {
[INFO] [stderr] 91 | |             $p => true,
[INFO] [stderr] ...  |
[INFO] [stderr] 94 | |     )
[INFO] [stderr] 95 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `interner::*`
[INFO] [stderr]    --> src/core.rs:403:9
[INFO] [stderr]     |
[INFO] [stderr] 403 |     use interner::*;
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core.rs:411:38
[INFO] [stderr]     |
[INFO] [stderr] 411 |         functions_in_class: &'a mut (FnMut(Name) -> (&'a TypeVariable, &'a [TypeDeclaration<Name>]) + 'a)
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Name) -> (&'a TypeVariable, &'a [TypeDeclaration<Name>]) + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `name`
[INFO] [stderr]  --> src/lambda_lift.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use renamer::{name, NameSupply};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lambda_lift.rs:18:58
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn each_pattern_variables(pattern: &Pattern<Id>, f: &mut FnMut(&Name)) {
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&Name)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/renamer.rs:159:81
[INFO] [stderr]     |
[INFO] [stderr] 159 |     fn import_globals<T: Eq + Copy>(&mut self, module: &Module<T>, str_fn: &mut FnMut(T) -> InternedStr, uid: usize) {
[INFO] [stderr]     |                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(T) -> InternedStr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/deriving.rs:93:99
[INFO] [stderr]    |
[INFO] [stderr] 93 |     fn make_binop(&mut self, class: &str, funcname: &str, data: &DataDefinition<Name>, func: &mut FnMut(&mut DerivingGen, Id<Name>, Id<Name>) -> Expr<Id<Name>>) -> Binding<Id<Name>> {
[INFO] [stderr]    |                                                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut DerivingGen, Id<Name>, Id<Name>) -> Expr<Id<Name>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/deriving.rs:132:97
[INFO] [stderr]     |
[INFO] [stderr] 132 |     fn match_same_constructors(&mut self, data: &DataDefinition<Name>, id_r: &Id<Name>, f: &mut FnMut(&mut DerivingGen, &[Id<Name>], &[Id<Name>]) -> Expr<Id<Name>>) -> Vec<Alternative<Id<Name>>> {
[INFO] [stderr]     |                                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut DerivingGen, &[Id<Name>], &[Id<Name>]) -> Expr<Id<Name>>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Application`, `Constructor`
[INFO] [stderr]  --> src/repl.rs:8:18
[INFO] [stderr]   |
[INFO] [stderr] 8 | use core::Type::{Application, Constructor};
[INFO] [stderr]   |                  ^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/repl.rs:33:36
[INFO] [stderr]    |
[INFO] [stderr] 33 |     type_env.add_types(prelude as &DataTypes);
[INFO] [stderr]    |                                    ^^^^^^^^^ help: use `dyn`: `dyn DataTypes`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/compiler.rs:552:33
[INFO] [stderr]     |
[INFO] [stderr] 552 |     fn scope(&mut self, f: &mut FnMut(&mut Compiler)) {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Compiler)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/compiler.rs:903:52
[INFO] [stderr]     |
[INFO] [stderr] 903 |     fn walk_classes<T>(&self, class: Name, f: &mut FnMut(&[TypeDeclaration<Name>]) -> Option<T>) -> Option<T> {
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&[TypeDeclaration<Name>]) -> Option<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Compiler` is imported redundantly
[INFO] [stderr]     --> src/compiler.rs:1066:9
[INFO] [stderr]      |
[INFO] [stderr] 353  | / pub struct Compiler<'a> {
[INFO] [stderr] 354  | |     ///Hashmap containging class names mapped to the functions it contains
[INFO] [stderr] 355  | |     pub instance_dictionaries: Vec<(Vec<(Name, Type<Name>)>, Vec<usize>)>,
[INFO] [stderr] 356  | |     pub stack_size : usize,
[INFO] [stderr] ...    |
[INFO] [stderr] 361  | |     context: Vec<Constraint<Name>>
[INFO] [stderr] 362  | | }
[INFO] [stderr]      | |_- the item `Compiler` is already defined here
[INFO] [stderr] ...
[INFO] [stderr] 1066 |       use compiler::Compiler;
[INFO] [stderr]      |           ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/typecheck.rs:92:26
[INFO] [stderr]    |
[INFO] [stderr] 92 |     assemblies: Vec<&'a (DataTypes + 'a)>,
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^ help: use `dyn`: `dyn DataTypes + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:139:39
[INFO] [stderr]     |
[INFO] [stderr] 139 |     fn each_binding(&self, func: &mut FnMut(&[Binding<Name>], (usize, usize)));
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&[Binding<Name>], (usize, usize))`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:156:39
[INFO] [stderr]     |
[INFO] [stderr] 156 |     fn each_binding(&self, func: &mut FnMut(&[Binding<Name>], (usize, usize))) {
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&[Binding<Name>], (usize, usize))`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:197:39
[INFO] [stderr]     |
[INFO] [stderr] 197 |     fn each_binding(&self, func: &mut FnMut(&[Binding<Name>], (usize, usize))) {
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&[Binding<Name>], (usize, usize))`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:270:44
[INFO] [stderr]     |
[INFO] [stderr] 270 |     pub fn add_types(&mut self, types: &'a DataTypes) {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn DataTypes`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:889:30
[INFO] [stderr]     |
[INFO] [stderr] 889 |             , bindings: &mut Bindings
[INFO] [stderr]     |                              ^^^^^^^^ help: use `dyn`: `dyn Bindings`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:957:84
[INFO] [stderr]     |
[INFO] [stderr] 957 |     fn typecheck_local_bindings(&mut self, subs: &mut Substitution, bindings: &mut Bindings) {
[INFO] [stderr]     |                                                                                    ^^^^^^^^ help: use `dyn`: `dyn Bindings`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:962:107
[INFO] [stderr]     |
[INFO] [stderr] 962 |     fn typecheck_global_bindings(&mut self, start_var_age: isize, subs: &mut Substitution, bindings: &mut Bindings) {
[INFO] [stderr]     |                                                                                                           ^^^^^^^^ help: use `dyn`: `dyn Bindings`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/typecheck.rs:1463:27
[INFO] [stderr]      |
[INFO] [stderr] 1463 | fn build_graph(bindings: &Bindings) -> Graph<(usize, usize)> {
[INFO] [stderr]      |                           ^^^^^^^^ help: use `dyn`: `dyn Bindings`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/typecheck.rs:1514:48
[INFO] [stderr]      |
[INFO] [stderr] 1514 | fn each_type_<Id>(typ: &Type<Id>, var_fn: &mut FnMut(&TypeVariable), op_fn: &mut FnMut(&TypeConstructor<Id>)) {
[INFO] [stderr]      |                                                ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&TypeVariable)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/typecheck.rs:1514:82
[INFO] [stderr]      |
[INFO] [stderr] 1514 | fn each_type_<Id>(typ: &Type<Id>, var_fn: &mut FnMut(&TypeVariable), op_fn: &mut FnMut(&TypeConstructor<Id>)) {
[INFO] [stderr]      |                                                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&TypeConstructor<Id>)`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `rename_modules` is imported redundantly
[INFO] [stderr]     --> src/typecheck.rs:1629:9
[INFO] [stderr]      |
[INFO] [stderr] 12   | use renamer::*;
[INFO] [stderr]      |     ---------- the item `rename_modules` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 1629 |     use renamer::rename_modules;
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `module::Expr::*`
[INFO] [stderr]     --> src/typecheck.rs:1653:5
[INFO] [stderr]      |
[INFO] [stderr] 1653 | use module::Expr::*;
[INFO] [stderr]      |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/typecheck.rs:1668:49
[INFO] [stderr]      |
[INFO] [stderr] 1668 | pub fn do_typecheck_with(input: &str, types: &[&DataTypes]) -> Module<Name> {
[INFO] [stderr]      |                                                 ^^^^^^^^^ help: use `dyn`: `dyn DataTypes`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/typecheck.rs:2062:57
[INFO] [stderr]      |
[INFO] [stderr] 2062 |     let module = do_typecheck_with(file, &[&prelude as &DataTypes]);
[INFO] [stderr]      |                                                         ^^^^^^^^^ help: use `dyn`: `dyn DataTypes`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/typecheck.rs:2106:57
[INFO] [stderr]      |
[INFO] [stderr] 2106 |     let module = do_typecheck_with(file, &[&prelude as &DataTypes]);
[INFO] [stderr]      |                                                         ^^^^^^^^^ help: use `dyn`: `dyn DataTypes`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/typecheck.rs:2127:57
[INFO] [stderr]      |
[INFO] [stderr] 2127 |     let module = do_typecheck_with(file, &[&prelude as &DataTypes]);
[INFO] [stderr]      |                                                         ^^^^^^^^^ help: use `dyn`: `dyn DataTypes`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/typecheck.rs:2245:44
[INFO] [stderr]      |
[INFO] [stderr] 2245 |     do_typecheck_with(file, &[&prelude as &DataTypes]);
[INFO] [stderr]      |                                            ^^^^^^^^^ help: use `dyn`: `dyn DataTypes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `lexer::TokenEnum::*`
[INFO] [stderr]    --> src/lexer.rs:590:5
[INFO] [stderr]     |
[INFO] [stderr] 590 | use lexer::TokenEnum::*;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/parser.rs:79:1
[INFO] [stderr]    |
[INFO] [stderr] 79 | / macro_rules! expect1 {
[INFO] [stderr] 80 | |     ($e: expr, $p: ident ($x: ident)) => ({
[INFO] [stderr] 81 | |         match $e.next().token {
[INFO] [stderr] 82 | |             $p($x) => $x,
[INFO] [stderr] ...  |
[INFO] [stderr] 85 | |     })
[INFO] [stderr] 86 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/parser.rs:88:1
[INFO] [stderr]    |
[INFO] [stderr] 88 | / macro_rules! matches {
[INFO] [stderr] 89 | |     ($e: expr, $p: pat) => (
[INFO] [stderr] 90 | |         match $e {
[INFO] [stderr] 91 | |             $p => true,
[INFO] [stderr] ...  |
[INFO] [stderr] 94 | |     )
[INFO] [stderr] 95 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `module::*`
[INFO] [stderr]     --> src/parser.rs:1189:5
[INFO] [stderr]      |
[INFO] [stderr] 1189 | use module::*;
[INFO] [stderr]      |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `module::Expr::*`
[INFO] [stderr]     --> src/parser.rs:1190:5
[INFO] [stderr]      |
[INFO] [stderr] 1190 | use module::Expr::*;
[INFO] [stderr]      |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Constructor`, `Double`, `Int`
[INFO] [stderr]    --> src/vm.rs:790:20
[INFO] [stderr]     |
[INFO] [stderr] 790 | use vm::VMResult::{Int, Double, Constructor};
[INFO] [stderr]     |                    ^^^  ^^^^^^  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `interner::*`
[INFO] [stderr]    --> src/core.rs:403:9
[INFO] [stderr]     |
[INFO] [stderr] 403 |     use interner::*;
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core.rs:411:38
[INFO] [stderr]     |
[INFO] [stderr] 411 |         functions_in_class: &'a mut (FnMut(Name) -> (&'a TypeVariable, &'a [TypeDeclaration<Name>]) + 'a)
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Name) -> (&'a TypeVariable, &'a [TypeDeclaration<Name>]) + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `name`
[INFO] [stderr]  --> src/lambda_lift.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use renamer::{name, NameSupply};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lambda_lift.rs:18:58
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn each_pattern_variables(pattern: &Pattern<Id>, f: &mut FnMut(&Name)) {
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&Name)`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::*`
[INFO] [stderr]    --> src/lambda_lift.rs:210:9
[INFO] [stderr]     |
[INFO] [stderr] 210 |     use core::*;
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::Expr::*`
[INFO] [stderr]    --> src/lambda_lift.rs:211:9
[INFO] [stderr]     |
[INFO] [stderr] 211 |     use core::Expr::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/renamer.rs:159:81
[INFO] [stderr]     |
[INFO] [stderr] 159 |     fn import_globals<T: Eq + Copy>(&mut self, module: &Module<T>, str_fn: &mut FnMut(T) -> InternedStr, uid: usize) {
[INFO] [stderr]     |                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(T) -> InternedStr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/deriving.rs:93:99
[INFO] [stderr]    |
[INFO] [stderr] 93 |     fn make_binop(&mut self, class: &str, funcname: &str, data: &DataDefinition<Name>, func: &mut FnMut(&mut DerivingGen, Id<Name>, Id<Name>) -> Expr<Id<Name>>) -> Binding<Id<Name>> {
[INFO] [stderr]    |                                                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut DerivingGen, Id<Name>, Id<Name>) -> Expr<Id<Name>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/deriving.rs:132:97
[INFO] [stderr]     |
[INFO] [stderr] 132 |     fn match_same_constructors(&mut self, data: &DataDefinition<Name>, id_r: &Id<Name>, f: &mut FnMut(&mut DerivingGen, &[Id<Name>], &[Id<Name>]) -> Expr<Id<Name>>) -> Vec<Alternative<Id<Name>>> {
[INFO] [stderr]     |                                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut DerivingGen, &[Id<Name>], &[Id<Name>]) -> Expr<Id<Name>>`
[INFO] [stderr] 
[INFO] [stderr] warning: private type `typecheck::Substitution` in public interface (error E0446)
[INFO] [stderr]    --> src/typecheck.rs:885:5
[INFO] [stderr]     |
[INFO] [stderr] 885 | /     pub fn typecheck_mutually_recursive_bindings
[INFO] [stderr] 886 | |             (&mut self
[INFO] [stderr] 887 | |             , start_var_age: isize
[INFO] [stderr] 888 | |             , subs: &mut Substitution
[INFO] [stderr] ...   |
[INFO] [stderr] 954 | |         }
[INFO] [stderr] 955 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(private_in_public)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: private trait `typecheck::Bindings` in public interface (error E0445)
[INFO] [stderr]    --> src/typecheck.rs:885:5
[INFO] [stderr]     |
[INFO] [stderr] 885 | /     pub fn typecheck_mutually_recursive_bindings
[INFO] [stderr] 886 | |             (&mut self
[INFO] [stderr] 887 | |             , start_var_age: isize
[INFO] [stderr] 888 | |             , subs: &mut Substitution
[INFO] [stderr] ...   |
[INFO] [stderr] 954 | |         }
[INFO] [stderr] 955 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: private type `graph::Edge` in public interface (error E0446)
[INFO] [stderr]   --> src/graph.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 | /     pub fn get_edge<'a>(&'a self, edge: EdgeIndex) -> &'a Edge {
[INFO] [stderr] 56 | |         &self.edges[edge.get()]
[INFO] [stderr] 57 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: private type `vm::InstanceDictionary` in public interface (error E0446)
[INFO] [stderr]   --> src/vm.rs:39:16
[INFO] [stderr]    |
[INFO] [stderr] 39 |     Dictionary(InstanceDictionary),
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tuple_type`
[INFO] [stderr]    --> src/types.rs:184:1
[INFO] [stderr]     |
[INFO] [stderr] 184 | pub fn tuple_type(n: usize) -> (String, Type) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `char_type`
[INFO] [stderr]    --> src/types.rs:205:1
[INFO] [stderr]     |
[INFO] [stderr] 205 | pub fn char_type() -> Type {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `int_type`
[INFO] [stderr]    --> src/types.rs:209:1
[INFO] [stderr]     |
[INFO] [stderr] 209 | pub fn int_type() -> Type {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bool_type`
[INFO] [stderr]    --> src/types.rs:213:1
[INFO] [stderr]     |
[INFO] [stderr] 213 | pub fn bool_type() -> Type {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `double_type`
[INFO] [stderr]    --> src/types.rs:217:1
[INFO] [stderr]     |
[INFO] [stderr] 217 | pub fn double_type() -> Type {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `function_type`
[INFO] [stderr]    --> src/types.rs:221:1
[INFO] [stderr]     |
[INFO] [stderr] 221 | pub fn function_type(arg: &Type, result: &Type) -> Type {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `io`
[INFO] [stderr]    --> src/types.rs:231:1
[INFO] [stderr]     |
[INFO] [stderr] 231 | pub fn io(typ: Type) -> Type {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `unit`
[INFO] [stderr]    --> src/types.rs:235:1
[INFO] [stderr]     |
[INFO] [stderr] 235 | pub fn unit() -> Type {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_module`
[INFO] [stderr]    --> src/module.rs:300:1
[INFO] [stderr]     |
[INFO] [stderr] 300 | pub fn walk_module<Ident, V: Visitor<Ident>>(visitor: &mut V, module: &Module<Ident>) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compile_string`
[INFO] [stderr]     --> src/compiler.rs:1051:1
[INFO] [stderr]      |
[INFO] [stderr] 1051 | pub fn compile_string(module: &str) -> Result<Vec<Assembly>, ::std::string::String> {
[INFO] [stderr]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `typecheck_module_`
[INFO] [stderr]    --> src/typecheck.rs:434:5
[INFO] [stderr]     |
[INFO] [stderr] 434 |     pub fn typecheck_module_(&mut self, module: &mut Module<Name>) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `typecheck_expr_`
[INFO] [stderr]    --> src/typecheck.rs:437:5
[INFO] [stderr]     |
[INFO] [stderr] 437 |     pub fn typecheck_expr_(&mut self, expr: &mut TypedExpr<Name>) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `typecheck_string`
[INFO] [stderr]     --> src/typecheck.rs:1613:1
[INFO] [stderr]      |
[INFO] [stderr] 1613 | pub fn typecheck_string(module: &str) -> Result<Vec<Module<Name>>, ::std::string::String> {
[INFO] [stderr]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `valid`
[INFO] [stderr]    --> src/lexer.rs:251:5
[INFO] [stderr]     |
[INFO] [stderr] 251 |     pub fn valid(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_string`
[INFO] [stderr]     --> src/parser.rs:1136:1
[INFO] [stderr]      |
[INFO] [stderr] 1136 | pub fn parse_string(contents: &str) -> ParseResult<Vec<Module>> {
[INFO] [stderr]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `from`
[INFO] [stderr]   --> src/graph.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     from: VertexIndex,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `execute_main_string`
[INFO] [stderr]    --> src/vm.rs:609:1
[INFO] [stderr]     |
[INFO] [stderr] 609 | pub fn execute_main_string(module: &str) -> Result<Option<VMResult>, String> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_module`
[INFO] [stderr]    --> src/core.rs:228:5
[INFO] [stderr]     |
[INFO] [stderr] 228 |     pub fn walk_module<V: Visitor<Ident>, Ident>(visitor: &mut V, module: &Module<Ident>) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_binding`
[INFO] [stderr]    --> src/core.rs:234:5
[INFO] [stderr]     |
[INFO] [stderr] 234 |     pub fn walk_binding<V: Visitor<Ident>, Ident>(visitor: &mut V, binding: &Binding<Ident>) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_expr`
[INFO] [stderr]    --> src/core.rs:238:5
[INFO] [stderr]     |
[INFO] [stderr] 238 |     pub fn walk_expr<V: Visitor<Ident>, Ident>(visitor: &mut V, expr: &Expr<Ident>) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_alternative`
[INFO] [stderr]    --> src/core.rs:261:5
[INFO] [stderr]     |
[INFO] [stderr] 261 |     pub fn walk_alternative<V: Visitor<Ident>, Ident>(visitor: &mut V, alt: &Alternative<Ident>) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_module`
[INFO] [stderr]    --> src/core.rs:349:5
[INFO] [stderr]     |
[INFO] [stderr] 349 |     pub fn walk_module<V: Visitor<Ident>, Ident>(visitor: &mut V, mut module: Module<Ident>) -> Module<Ident> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_binding`
[INFO] [stderr]    --> src/core.rs:358:5
[INFO] [stderr]     |
[INFO] [stderr] 358 |     pub fn walk_binding<V: Visitor<Ident>, Ident>(visitor: &mut V, binding: Binding<Ident>) -> Binding<Ident> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_expr`
[INFO] [stderr]    --> src/core.rs:366:5
[INFO] [stderr]     |
[INFO] [stderr] 366 |     pub fn walk_expr<V: Visitor<Ident>, Ident>(visitor: &mut V, expr: Expr<Ident>) -> Expr<Ident> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_alternative`
[INFO] [stderr]    --> src/core.rs:391:5
[INFO] [stderr]     |
[INFO] [stderr] 391 |     pub fn walk_alternative<V: Visitor<Ident>, Ident>(visitor: &mut V, alt: Alternative<Ident>) -> Alternative<Ident> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: private type `typecheck::Substitution` in public interface (error E0446)
[INFO] [stderr]    --> src/typecheck.rs:885:5
[INFO] [stderr]     |
[INFO] [stderr] 885 | /     pub fn typecheck_mutually_recursive_bindings
[INFO] [stderr] 886 | |             (&mut self
[INFO] [stderr] 887 | |             , start_var_age: isize
[INFO] [stderr] 888 | |             , subs: &mut Substitution
[INFO] [stderr] ...   |
[INFO] [stderr] 954 | |         }
[INFO] [stderr] 955 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(private_in_public)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: private trait `typecheck::Bindings` in public interface (error E0445)
[INFO] [stderr]    --> src/typecheck.rs:885:5
[INFO] [stderr]     |
[INFO] [stderr] 885 | /     pub fn typecheck_mutually_recursive_bindings
[INFO] [stderr] 886 | |             (&mut self
[INFO] [stderr] 887 | |             , start_var_age: isize
[INFO] [stderr] 888 | |             , subs: &mut Substitution
[INFO] [stderr] ...   |
[INFO] [stderr] 954 | |         }
[INFO] [stderr] 955 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: private type `graph::Edge` in public interface (error E0446)
[INFO] [stderr]   --> src/graph.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 | /     pub fn get_edge<'a>(&'a self, edge: EdgeIndex) -> &'a Edge {
[INFO] [stderr] 56 | |         &self.edges[edge.get()]
[INFO] [stderr] 57 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: private type `vm::InstanceDictionary` in public interface (error E0446)
[INFO] [stderr]   --> src/vm.rs:39:16
[INFO] [stderr]    |
[INFO] [stderr] 39 |     Dictionary(InstanceDictionary),
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tuple_type`
[INFO] [stderr]    --> src/types.rs:184:1
[INFO] [stderr]     |
[INFO] [stderr] 184 | pub fn tuple_type(n: usize) -> (String, Type) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_module`
[INFO] [stderr]    --> src/module.rs:300:1
[INFO] [stderr]     |
[INFO] [stderr] 300 | pub fn walk_module<Ident, V: Visitor<Ident>>(visitor: &mut V, module: &Module<Ident>) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `valid`
[INFO] [stderr]    --> src/lexer.rs:251:5
[INFO] [stderr]     |
[INFO] [stderr] 251 |     pub fn valid(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `from`
[INFO] [stderr]   --> src/graph.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     from: VertexIndex,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_assembly`
[INFO] [stderr]    --> src/vm.rs:178:5
[INFO] [stderr]     |
[INFO] [stderr] 178 |     pub fn get_assembly(&self, index: usize) -> &Assembly {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_expr`
[INFO] [stderr]   --> src/core.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn from_expr(expr: Expr<Id>) -> Module<Id> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_module`
[INFO] [stderr]    --> src/core.rs:349:5
[INFO] [stderr]     |
[INFO] [stderr] 349 |     pub fn walk_module<V: Visitor<Ident>, Ident>(visitor: &mut V, mut module: Module<Ident>) -> Module<Ident> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_binding`
[INFO] [stderr]    --> src/core.rs:358:5
[INFO] [stderr]     |
[INFO] [stderr] 358 |     pub fn walk_binding<V: Visitor<Ident>, Ident>(visitor: &mut V, binding: Binding<Ident>) -> Binding<Ident> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_expr`
[INFO] [stderr]    --> src/core.rs:366:5
[INFO] [stderr]     |
[INFO] [stderr] 366 |     pub fn walk_expr<V: Visitor<Ident>, Ident>(visitor: &mut V, expr: Expr<Ident>) -> Expr<Ident> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_alternative`
[INFO] [stderr]    --> src/core.rs:391:5
[INFO] [stderr]     |
[INFO] [stderr] 391 |     pub fn walk_alternative<V: Visitor<Ident>, Ident>(visitor: &mut V, alt: Alternative<Ident>) -> Alternative<Ident> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `translate_expr`
[INFO] [stderr]    --> src/core.rs:417:5
[INFO] [stderr]     |
[INFO] [stderr] 417 |     pub fn translate_expr(expr: module::TypedExpr<Name>) -> Expr<Id<Name>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.88s
[INFO] running `"docker" "inspect" "9e7b74f65adf101d9be0b17703092921df216a5be17e2f750112b7511f87f657"`
[INFO] running `"docker" "rm" "-f" "9e7b74f65adf101d9be0b17703092921df216a5be17e2f750112b7511f87f657"`
[INFO] [stdout] 9e7b74f65adf101d9be0b17703092921df216a5be17e2f750112b7511f87f657