Dec 18 06:31:47.187 INFO checking Marwes/haskell-compiler against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 06:31:47.187 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 06:31:47.639 INFO [stdout] 60dcff2973e9049310774f2bc4b4529e42d053d2462294291572ee92f94ed625
Dec 18 06:31:47.642 INFO running `"docker" "start" "-a" "60dcff2973e9049310774f2bc4b4529e42d053d2462294291572ee92f94ed625"`
Dec 18 06:31:51.036 INFO [stderr]     Checking haskell-compiler v0.0.1 (/opt/crater/workdir)
Dec 18 06:31:52.156 INFO [stderr] warning: unused macro definition
Dec 18 06:31:52.156 INFO [stderr]   --> src/parser.rs:79:1
Dec 18 06:31:52.156 INFO [stderr]    |
Dec 18 06:31:52.156 INFO [stderr] 79 | / macro_rules! expect1 {
Dec 18 06:31:52.156 INFO [stderr] 80 | |     ($e: expr, $p: ident ($x: ident)) => ({
Dec 18 06:31:52.156 INFO [stderr] 81 | |         match $e.next().token {
Dec 18 06:31:52.156 INFO [stderr] 82 | |             $p($x) => $x,
Dec 18 06:31:52.156 INFO [stderr] ...  |
Dec 18 06:31:52.156 INFO [stderr] 85 | |     })
Dec 18 06:31:52.156 INFO [stderr] 86 | | }
Dec 18 06:31:52.156 INFO [stderr]    | |_^
Dec 18 06:31:52.156 INFO [stderr]    |
Dec 18 06:31:52.156 INFO [stderr]    = note: #[warn(unused_macros)] on by default
Dec 18 06:31:52.156 INFO [stderr] 
Dec 18 06:31:52.156 INFO [stderr] warning: unused macro definition
Dec 18 06:31:52.156 INFO [stderr]   --> src/parser.rs:88:1
Dec 18 06:31:52.156 INFO [stderr]    |
Dec 18 06:31:52.156 INFO [stderr] 88 | / macro_rules! matches {
Dec 18 06:31:52.156 INFO [stderr] 89 | |     ($e: expr, $p: pat) => (
Dec 18 06:31:52.156 INFO [stderr] 90 | |         match $e {
Dec 18 06:31:52.156 INFO [stderr] 91 | |             $p => true,
Dec 18 06:31:52.156 INFO [stderr] ...  |
Dec 18 06:31:52.156 INFO [stderr] 94 | |     )
Dec 18 06:31:52.156 INFO [stderr] 95 | | }
Dec 18 06:31:52.156 INFO [stderr]    | |_^
Dec 18 06:31:52.156 INFO [stderr] 
Dec 18 06:31:52.164 INFO [stderr] warning: unused import: `interner::*`
Dec 18 06:31:52.164 INFO [stderr]    --> src/core.rs:403:9
Dec 18 06:31:52.164 INFO [stderr]     |
Dec 18 06:31:52.164 INFO [stderr] 403 |     use interner::*;
Dec 18 06:31:52.164 INFO [stderr]     |         ^^^^^^^^^^^
Dec 18 06:31:52.164 INFO [stderr]     |
Dec 18 06:31:52.164 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 18 06:31:52.164 INFO [stderr] 
Dec 18 06:31:52.164 INFO [stderr] warning: unused import: `name`
Dec 18 06:31:52.164 INFO [stderr]  --> src/lambda_lift.rs:5:15
Dec 18 06:31:52.164 INFO [stderr]   |
Dec 18 06:31:52.164 INFO [stderr] 5 | use renamer::{name, NameSupply};
Dec 18 06:31:52.164 INFO [stderr]   |               ^^^^
Dec 18 06:31:52.164 INFO [stderr] 
Dec 18 06:31:52.165 INFO [stderr] warning: unused imports: `Application`, `Constructor`
Dec 18 06:31:52.165 INFO [stderr]  --> src/repl.rs:8:18
Dec 18 06:31:52.165 INFO [stderr]   |
Dec 18 06:31:52.165 INFO [stderr] 8 | use core::Type::{Application, Constructor};
Dec 18 06:31:52.165 INFO [stderr]   |                  ^^^^^^^^^^^  ^^^^^^^^^^^
Dec 18 06:31:52.165 INFO [stderr] 
Dec 18 06:31:52.648 INFO [stderr] warning: unused import: `module::Expr::*`
Dec 18 06:31:52.648 INFO [stderr]     --> src/typecheck.rs:1653:5
Dec 18 06:31:52.648 INFO [stderr]      |
Dec 18 06:31:52.648 INFO [stderr] 1653 | use module::Expr::*;
Dec 18 06:31:52.648 INFO [stderr]      |     ^^^^^^^^^^^^^^^
Dec 18 06:31:52.648 INFO [stderr]      |
Dec 18 06:31:52.648 INFO [stderr]      = note: #[warn(unused_imports)] on by default
Dec 18 06:31:52.648 INFO [stderr] 
Dec 18 06:31:52.662 INFO [stderr] warning: unused import: `lexer::TokenEnum::*`
Dec 18 06:31:52.662 INFO [stderr]    --> src/lexer.rs:590:5
Dec 18 06:31:52.662 INFO [stderr]     |
Dec 18 06:31:52.662 INFO [stderr] 590 | use lexer::TokenEnum::*;
Dec 18 06:31:52.662 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:52.662 INFO [stderr] 
Dec 18 06:31:52.662 INFO [stderr] warning: unused macro definition
Dec 18 06:31:52.662 INFO [stderr]   --> src/parser.rs:79:1
Dec 18 06:31:52.662 INFO [stderr]    |
Dec 18 06:31:52.662 INFO [stderr] 79 | / macro_rules! expect1 {
Dec 18 06:31:52.662 INFO [stderr] 80 | |     ($e: expr, $p: ident ($x: ident)) => ({
Dec 18 06:31:52.662 INFO [stderr] 81 | |         match $e.next().token {
Dec 18 06:31:52.662 INFO [stderr] 82 | |             $p($x) => $x,
Dec 18 06:31:52.662 INFO [stderr] ...  |
Dec 18 06:31:52.662 INFO [stderr] 85 | |     })
Dec 18 06:31:52.662 INFO [stderr] 86 | | }
Dec 18 06:31:52.662 INFO [stderr]    | |_^
Dec 18 06:31:52.662 INFO [stderr]    |
Dec 18 06:31:52.662 INFO [stderr]    = note: #[warn(unused_macros)] on by default
Dec 18 06:31:52.662 INFO [stderr] 
Dec 18 06:31:52.665 INFO [stderr] warning: unused macro definition
Dec 18 06:31:52.665 INFO [stderr]   --> src/parser.rs:88:1
Dec 18 06:31:52.665 INFO [stderr]    |
Dec 18 06:31:52.665 INFO [stderr] 88 | / macro_rules! matches {
Dec 18 06:31:52.665 INFO [stderr] 89 | |     ($e: expr, $p: pat) => (
Dec 18 06:31:52.665 INFO [stderr] 90 | |         match $e {
Dec 18 06:31:52.665 INFO [stderr] 91 | |             $p => true,
Dec 18 06:31:52.665 INFO [stderr] ...  |
Dec 18 06:31:52.665 INFO [stderr] 94 | |     )
Dec 18 06:31:52.665 INFO [stderr] 95 | | }
Dec 18 06:31:52.665 INFO [stderr]    | |_^
Dec 18 06:31:52.665 INFO [stderr] 
Dec 18 06:31:52.676 INFO [stderr] warning: unused import: `module::*`
Dec 18 06:31:52.676 INFO [stderr]     --> src/parser.rs:1189:5
Dec 18 06:31:52.676 INFO [stderr]      |
Dec 18 06:31:52.676 INFO [stderr] 1189 | use module::*;
Dec 18 06:31:52.676 INFO [stderr]      |     ^^^^^^^^^
Dec 18 06:31:52.676 INFO [stderr] 
Dec 18 06:31:52.676 INFO [stderr] warning: unused import: `module::Expr::*`
Dec 18 06:31:52.676 INFO [stderr]     --> src/parser.rs:1190:5
Dec 18 06:31:52.676 INFO [stderr]      |
Dec 18 06:31:52.676 INFO [stderr] 1190 | use module::Expr::*;
Dec 18 06:31:52.676 INFO [stderr]      |     ^^^^^^^^^^^^^^^
Dec 18 06:31:52.676 INFO [stderr] 
Dec 18 06:31:52.683 INFO [stderr] warning: unused imports: `Constructor`, `Double`, `Int`
Dec 18 06:31:52.683 INFO [stderr]    --> src/vm.rs:790:20
Dec 18 06:31:52.683 INFO [stderr]     |
Dec 18 06:31:52.684 INFO [stderr] 790 | use vm::VMResult::{Int, Double, Constructor};
Dec 18 06:31:52.684 INFO [stderr]     |                    ^^^  ^^^^^^  ^^^^^^^^^^^
Dec 18 06:31:52.684 INFO [stderr] 
Dec 18 06:31:52.693 INFO [stderr] warning: unused import: `interner::*`
Dec 18 06:31:52.693 INFO [stderr]    --> src/core.rs:403:9
Dec 18 06:31:52.693 INFO [stderr]     |
Dec 18 06:31:52.693 INFO [stderr] 403 |     use interner::*;
Dec 18 06:31:52.693 INFO [stderr]     |         ^^^^^^^^^^^
Dec 18 06:31:52.693 INFO [stderr] 
Dec 18 06:31:52.695 INFO [stderr] warning: unused import: `name`
Dec 18 06:31:52.695 INFO [stderr]  --> src/lambda_lift.rs:5:15
Dec 18 06:31:52.695 INFO [stderr]   |
Dec 18 06:31:52.695 INFO [stderr] 5 | use renamer::{name, NameSupply};
Dec 18 06:31:52.695 INFO [stderr]   |               ^^^^
Dec 18 06:31:52.695 INFO [stderr] 
Dec 18 06:31:52.695 INFO [stderr] warning: unused import: `core::*`
Dec 18 06:31:52.695 INFO [stderr]    --> src/lambda_lift.rs:210:9
Dec 18 06:31:52.695 INFO [stderr]     |
Dec 18 06:31:52.695 INFO [stderr] 210 |     use core::*;
Dec 18 06:31:52.695 INFO [stderr]     |         ^^^^^^^
Dec 18 06:31:52.695 INFO [stderr] 
Dec 18 06:31:52.695 INFO [stderr] warning: unused import: `core::Expr::*`
Dec 18 06:31:52.695 INFO [stderr]    --> src/lambda_lift.rs:211:9
Dec 18 06:31:52.695 INFO [stderr]     |
Dec 18 06:31:52.696 INFO [stderr] 211 |     use core::Expr::*;
Dec 18 06:31:52.696 INFO [stderr]     |         ^^^^^^^^^^^^^
Dec 18 06:31:52.696 INFO [stderr] 
Dec 18 06:31:55.088 INFO [stderr] warning: private type `typecheck::Substitution` in public interface (error E0446)
Dec 18 06:31:55.088 INFO [stderr]    --> src/typecheck.rs:885:5
Dec 18 06:31:55.092 INFO [stderr]     |
Dec 18 06:31:55.093 INFO [stderr] 885 | /     pub fn typecheck_mutually_recursive_bindings
Dec 18 06:31:55.093 INFO [stderr] 886 | |             (&mut self
Dec 18 06:31:55.093 INFO [stderr] 887 | |             , start_var_age: isize
Dec 18 06:31:55.093 INFO [stderr] 888 | |             , subs: &mut Substitution
Dec 18 06:31:55.093 INFO [stderr] ...   |
Dec 18 06:31:55.093 INFO [stderr] 954 | |         }
Dec 18 06:31:55.093 INFO [stderr] 955 | |     }
Dec 18 06:31:55.093 INFO [stderr]     | |_____^
Dec 18 06:31:55.093 INFO [stderr]     |
Dec 18 06:31:55.093 INFO [stderr]     = note: #[warn(private_in_public)] on by default
Dec 18 06:31:55.093 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!
Dec 18 06:31:55.093 INFO [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 18 06:31:55.093 INFO [stderr] 
Dec 18 06:31:55.093 INFO [stderr] warning: private type `dyn typecheck::Bindings` in public interface (error E0446)
Dec 18 06:31:55.093 INFO [stderr]    --> src/typecheck.rs:885:5
Dec 18 06:31:55.093 INFO [stderr]     |
Dec 18 06:31:55.093 INFO [stderr] 885 | /     pub fn typecheck_mutually_recursive_bindings
Dec 18 06:31:55.093 INFO [stderr] 886 | |             (&mut self
Dec 18 06:31:55.093 INFO [stderr] 887 | |             , start_var_age: isize
Dec 18 06:31:55.093 INFO [stderr] 888 | |             , subs: &mut Substitution
Dec 18 06:31:55.093 INFO [stderr] ...   |
Dec 18 06:31:55.093 INFO [stderr] 954 | |         }
Dec 18 06:31:55.093 INFO [stderr] 955 | |     }
Dec 18 06:31:55.093 INFO [stderr]     | |_____^
Dec 18 06:31:55.093 INFO [stderr]     |
Dec 18 06:31:55.093 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!
Dec 18 06:31:55.093 INFO [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 18 06:31:55.093 INFO [stderr] 
Dec 18 06:31:55.093 INFO [stderr] warning: private type `graph::Edge` in public interface (error E0446)
Dec 18 06:31:55.093 INFO [stderr]   --> src/graph.rs:55:5
Dec 18 06:31:55.093 INFO [stderr]    |
Dec 18 06:31:55.093 INFO [stderr] 55 | /     pub fn get_edge<'a>(&'a self, edge: EdgeIndex) -> &'a Edge {
Dec 18 06:31:55.094 INFO [stderr] 56 | |         &self.edges[edge.get()]
Dec 18 06:31:55.094 INFO [stderr] 57 | |     }
Dec 18 06:31:55.094 INFO [stderr]    | |_____^
Dec 18 06:31:55.094 INFO [stderr]    |
Dec 18 06:31:55.094 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!
Dec 18 06:31:55.094 INFO [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 18 06:31:55.094 INFO [stderr] 
Dec 18 06:31:55.094 INFO [stderr] warning: private type `vm::InstanceDictionary` in public interface (error E0446)
Dec 18 06:31:55.094 INFO [stderr]   --> src/vm.rs:39:16
Dec 18 06:31:55.094 INFO [stderr]    |
Dec 18 06:31:55.094 INFO [stderr] 39 |     Dictionary(InstanceDictionary),
Dec 18 06:31:55.101 INFO [stderr]    |                ^^^^^^^^^^^^^^^^^^
Dec 18 06:31:55.101 INFO [stderr]    |
Dec 18 06:31:55.101 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!
Dec 18 06:31:55.101 INFO [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 18 06:31:55.101 INFO [stderr] 
Dec 18 06:31:56.550 INFO [stderr] warning: function is never used: `tuple_type`
Dec 18 06:31:56.550 INFO [stderr]    --> src/types.rs:184:1
Dec 18 06:31:56.550 INFO [stderr]     |
Dec 18 06:31:56.550 INFO [stderr] 184 | pub fn tuple_type(n: usize) -> (String, Type) {
Dec 18 06:31:56.550 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.550 INFO [stderr]     |
Dec 18 06:31:56.550 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 18 06:31:56.550 INFO [stderr] 
Dec 18 06:31:56.550 INFO [stderr] warning: function is never used: `char_type`
Dec 18 06:31:56.550 INFO [stderr]    --> src/types.rs:205:1
Dec 18 06:31:56.550 INFO [stderr]     |
Dec 18 06:31:56.550 INFO [stderr] 205 | pub fn char_type() -> Type {
Dec 18 06:31:56.550 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.550 INFO [stderr] 
Dec 18 06:31:56.550 INFO [stderr] warning: function is never used: `int_type`
Dec 18 06:31:56.550 INFO [stderr]    --> src/types.rs:209:1
Dec 18 06:31:56.550 INFO [stderr]     |
Dec 18 06:31:56.550 INFO [stderr] 209 | pub fn int_type() -> Type {
Dec 18 06:31:56.550 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.550 INFO [stderr] 
Dec 18 06:31:56.550 INFO [stderr] warning: function is never used: `bool_type`
Dec 18 06:31:56.550 INFO [stderr]    --> src/types.rs:213:1
Dec 18 06:31:56.550 INFO [stderr]     |
Dec 18 06:31:56.550 INFO [stderr] 213 | pub fn bool_type() -> Type {
Dec 18 06:31:56.550 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.550 INFO [stderr] 
Dec 18 06:31:56.550 INFO [stderr] warning: function is never used: `double_type`
Dec 18 06:31:56.551 INFO [stderr]    --> src/types.rs:217:1
Dec 18 06:31:56.551 INFO [stderr]     |
Dec 18 06:31:56.551 INFO [stderr] 217 | pub fn double_type() -> Type {
Dec 18 06:31:56.551 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.551 INFO [stderr] 
Dec 18 06:31:56.551 INFO [stderr] warning: function is never used: `function_type`
Dec 18 06:31:56.551 INFO [stderr]    --> src/types.rs:221:1
Dec 18 06:31:56.551 INFO [stderr]     |
Dec 18 06:31:56.551 INFO [stderr] 221 | pub fn function_type(arg: &Type, result: &Type) -> Type {
Dec 18 06:31:56.551 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.551 INFO [stderr] 
Dec 18 06:31:56.551 INFO [stderr] warning: function is never used: `io`
Dec 18 06:31:56.551 INFO [stderr]    --> src/types.rs:231:1
Dec 18 06:31:56.551 INFO [stderr]     |
Dec 18 06:31:56.551 INFO [stderr] 231 | pub fn io(typ: Type) -> Type {
Dec 18 06:31:56.551 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.551 INFO [stderr] 
Dec 18 06:31:56.551 INFO [stderr] warning: function is never used: `unit`
Dec 18 06:31:56.551 INFO [stderr]    --> src/types.rs:235:1
Dec 18 06:31:56.551 INFO [stderr]     |
Dec 18 06:31:56.551 INFO [stderr] 235 | pub fn unit() -> Type {
Dec 18 06:31:56.551 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.551 INFO [stderr] 
Dec 18 06:31:56.551 INFO [stderr] warning: function is never used: `walk_module`
Dec 18 06:31:56.551 INFO [stderr]    --> src/module.rs:300:1
Dec 18 06:31:56.551 INFO [stderr]     |
Dec 18 06:31:56.551 INFO [stderr] 300 | pub fn walk_module<Ident, V: Visitor<Ident>>(visitor: &mut V, module: &Module<Ident>) {
Dec 18 06:31:56.551 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.551 INFO [stderr] 
Dec 18 06:31:56.551 INFO [stderr] warning: function is never used: `compile_string`
Dec 18 06:31:56.551 INFO [stderr]     --> src/compiler.rs:1051:1
Dec 18 06:31:56.551 INFO [stderr]      |
Dec 18 06:31:56.551 INFO [stderr] 1051 | pub fn compile_string(module: &str) -> Result<Vec<Assembly>, ::std::string::String> {
Dec 18 06:31:56.551 INFO [stderr]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.552 INFO [stderr] 
Dec 18 06:31:56.552 INFO [stderr] warning: method is never used: `typecheck_module_`
Dec 18 06:31:56.552 INFO [stderr]    --> src/typecheck.rs:434:5
Dec 18 06:31:56.552 INFO [stderr]     |
Dec 18 06:31:56.552 INFO [stderr] 434 |     pub fn typecheck_module_(&mut self, module: &mut Module<Name>) {
Dec 18 06:31:56.552 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.552 INFO [stderr] 
Dec 18 06:31:56.552 INFO [stderr] warning: method is never used: `typecheck_expr_`
Dec 18 06:31:56.552 INFO [stderr]    --> src/typecheck.rs:437:5
Dec 18 06:31:56.552 INFO [stderr]     |
Dec 18 06:31:56.552 INFO [stderr] 437 |     pub fn typecheck_expr_(&mut self, expr: &mut TypedExpr<Name>) {
Dec 18 06:31:56.552 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.552 INFO [stderr] 
Dec 18 06:31:56.552 INFO [stderr] warning: function is never used: `typecheck_string`
Dec 18 06:31:56.552 INFO [stderr]     --> src/typecheck.rs:1613:1
Dec 18 06:31:56.552 INFO [stderr]      |
Dec 18 06:31:56.552 INFO [stderr] 1613 | pub fn typecheck_string(module: &str) -> Result<Vec<Module<Name>>, ::std::string::String> {
Dec 18 06:31:56.552 INFO [stderr]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.552 INFO [stderr] 
Dec 18 06:31:56.552 INFO [stderr] warning: method is never used: `valid`
Dec 18 06:31:56.552 INFO [stderr]    --> src/lexer.rs:251:5
Dec 18 06:31:56.552 INFO [stderr]     |
Dec 18 06:31:56.552 INFO [stderr] 251 |     pub fn valid(&self) -> bool {
Dec 18 06:31:56.552 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.552 INFO [stderr] 
Dec 18 06:31:56.553 INFO [stderr] warning: function is never used: `parse_string`
Dec 18 06:31:56.553 INFO [stderr]     --> src/parser.rs:1136:1
Dec 18 06:31:56.553 INFO [stderr]      |
Dec 18 06:31:56.553 INFO [stderr] 1136 | pub fn parse_string(contents: &str) -> ParseResult<Vec<Module>> {
Dec 18 06:31:56.553 INFO [stderr]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.553 INFO [stderr] 
Dec 18 06:31:56.556 INFO [stderr] warning: field is never used: `from`
Dec 18 06:31:56.556 INFO [stderr]   --> src/graph.rs:24:5
Dec 18 06:31:56.556 INFO [stderr]    |
Dec 18 06:31:56.556 INFO [stderr] 24 |     from: VertexIndex,
Dec 18 06:31:56.556 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.556 INFO [stderr] 
Dec 18 06:31:56.556 INFO [stderr] warning: function is never used: `execute_main_string`
Dec 18 06:31:56.556 INFO [stderr]    --> src/vm.rs:609:1
Dec 18 06:31:56.556 INFO [stderr]     |
Dec 18 06:31:56.556 INFO [stderr] 609 | pub fn execute_main_string(module: &str) -> Result<Option<VMResult>, String> {
Dec 18 06:31:56.556 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.556 INFO [stderr] 
Dec 18 06:31:56.556 INFO [stderr] warning: function is never used: `walk_module`
Dec 18 06:31:56.556 INFO [stderr]    --> src/core.rs:228:5
Dec 18 06:31:56.556 INFO [stderr]     |
Dec 18 06:31:56.556 INFO [stderr] 228 |     pub fn walk_module<V: Visitor<Ident>, Ident>(visitor: &mut V, module: &Module<Ident>) {
Dec 18 06:31:56.557 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.557 INFO [stderr] 
Dec 18 06:31:56.557 INFO [stderr] warning: function is never used: `walk_binding`
Dec 18 06:31:56.557 INFO [stderr]    --> src/core.rs:234:5
Dec 18 06:31:56.557 INFO [stderr]     |
Dec 18 06:31:56.557 INFO [stderr] 234 |     pub fn walk_binding<V: Visitor<Ident>, Ident>(visitor: &mut V, binding: &Binding<Ident>) {
Dec 18 06:31:56.557 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.557 INFO [stderr] 
Dec 18 06:31:56.557 INFO [stderr] warning: function is never used: `walk_expr`
Dec 18 06:31:56.557 INFO [stderr]    --> src/core.rs:238:5
Dec 18 06:31:56.557 INFO [stderr]     |
Dec 18 06:31:56.557 INFO [stderr] 238 |     pub fn walk_expr<V: Visitor<Ident>, Ident>(visitor: &mut V, expr: &Expr<Ident>) {
Dec 18 06:31:56.557 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.557 INFO [stderr] 
Dec 18 06:31:56.557 INFO [stderr] warning: function is never used: `walk_alternative`
Dec 18 06:31:56.557 INFO [stderr]    --> src/core.rs:261:5
Dec 18 06:31:56.557 INFO [stderr]     |
Dec 18 06:31:56.557 INFO [stderr] 261 |     pub fn walk_alternative<V: Visitor<Ident>, Ident>(visitor: &mut V, alt: &Alternative<Ident>) {
Dec 18 06:31:56.557 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.557 INFO [stderr] 
Dec 18 06:31:56.557 INFO [stderr] warning: function is never used: `walk_module`
Dec 18 06:31:56.557 INFO [stderr]    --> src/core.rs:349:5
Dec 18 06:31:56.557 INFO [stderr]     |
Dec 18 06:31:56.557 INFO [stderr] 349 |     pub fn walk_module<V: Visitor<Ident>, Ident>(visitor: &mut V, mut module: Module<Ident>) -> Module<Ident> {
Dec 18 06:31:56.557 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.557 INFO [stderr] 
Dec 18 06:31:56.557 INFO [stderr] warning: function is never used: `walk_binding`
Dec 18 06:31:56.557 INFO [stderr]    --> src/core.rs:358:5
Dec 18 06:31:56.557 INFO [stderr]     |
Dec 18 06:31:56.557 INFO [stderr] 358 |     pub fn walk_binding<V: Visitor<Ident>, Ident>(visitor: &mut V, binding: Binding<Ident>) -> Binding<Ident> {
Dec 18 06:31:56.557 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.557 INFO [stderr] 
Dec 18 06:31:56.557 INFO [stderr] warning: function is never used: `walk_expr`
Dec 18 06:31:56.557 INFO [stderr]    --> src/core.rs:366:5
Dec 18 06:31:56.557 INFO [stderr]     |
Dec 18 06:31:56.557 INFO [stderr] 366 |     pub fn walk_expr<V: Visitor<Ident>, Ident>(visitor: &mut V, expr: Expr<Ident>) -> Expr<Ident> {
Dec 18 06:31:56.557 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.557 INFO [stderr] 
Dec 18 06:31:56.557 INFO [stderr] warning: function is never used: `walk_alternative`
Dec 18 06:31:56.557 INFO [stderr]    --> src/core.rs:391:5
Dec 18 06:31:56.557 INFO [stderr]     |
Dec 18 06:31:56.557 INFO [stderr] 391 |     pub fn walk_alternative<V: Visitor<Ident>, Ident>(visitor: &mut V, alt: Alternative<Ident>) -> Alternative<Ident> {
Dec 18 06:31:56.557 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.557 INFO [stderr] 
Dec 18 06:31:56.632 INFO [stderr] warning: private type `typecheck::Substitution` in public interface (error E0446)
Dec 18 06:31:56.632 INFO [stderr]    --> src/typecheck.rs:885:5
Dec 18 06:31:56.632 INFO [stderr]     |
Dec 18 06:31:56.632 INFO [stderr] 885 | /     pub fn typecheck_mutually_recursive_bindings
Dec 18 06:31:56.632 INFO [stderr] 886 | |             (&mut self
Dec 18 06:31:56.632 INFO [stderr] 887 | |             , start_var_age: isize
Dec 18 06:31:56.632 INFO [stderr] 888 | |             , subs: &mut Substitution
Dec 18 06:31:56.632 INFO [stderr] ...   |
Dec 18 06:31:56.632 INFO [stderr] 954 | |         }
Dec 18 06:31:56.632 INFO [stderr] 955 | |     }
Dec 18 06:31:56.632 INFO [stderr]     | |_____^
Dec 18 06:31:56.633 INFO [stderr]     |
Dec 18 06:31:56.633 INFO [stderr]     = note: #[warn(private_in_public)] on by default
Dec 18 06:31:56.633 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!
Dec 18 06:31:56.633 INFO [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 18 06:31:56.633 INFO [stderr] 
Dec 18 06:31:56.633 INFO [stderr] warning: private type `dyn typecheck::Bindings` in public interface (error E0446)
Dec 18 06:31:56.633 INFO [stderr]    --> src/typecheck.rs:885:5
Dec 18 06:31:56.633 INFO [stderr]     |
Dec 18 06:31:56.633 INFO [stderr] 885 | /     pub fn typecheck_mutually_recursive_bindings
Dec 18 06:31:56.633 INFO [stderr] 886 | |             (&mut self
Dec 18 06:31:56.633 INFO [stderr] 887 | |             , start_var_age: isize
Dec 18 06:31:56.633 INFO [stderr] 888 | |             , subs: &mut Substitution
Dec 18 06:31:56.633 INFO [stderr] ...   |
Dec 18 06:31:56.633 INFO [stderr] 954 | |         }
Dec 18 06:31:56.633 INFO [stderr] 955 | |     }
Dec 18 06:31:56.633 INFO [stderr]     | |_____^
Dec 18 06:31:56.633 INFO [stderr]     |
Dec 18 06:31:56.633 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!
Dec 18 06:31:56.633 INFO [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 18 06:31:56.633 INFO [stderr] 
Dec 18 06:31:56.633 INFO [stderr] warning: private type `graph::Edge` in public interface (error E0446)
Dec 18 06:31:56.633 INFO [stderr]   --> src/graph.rs:55:5
Dec 18 06:31:56.633 INFO [stderr]    |
Dec 18 06:31:56.633 INFO [stderr] 55 | /     pub fn get_edge<'a>(&'a self, edge: EdgeIndex) -> &'a Edge {
Dec 18 06:31:56.633 INFO [stderr] 56 | |         &self.edges[edge.get()]
Dec 18 06:31:56.633 INFO [stderr] 57 | |     }
Dec 18 06:31:56.633 INFO [stderr]    | |_____^
Dec 18 06:31:56.633 INFO [stderr]    |
Dec 18 06:31:56.633 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!
Dec 18 06:31:56.633 INFO [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 18 06:31:56.633 INFO [stderr] 
Dec 18 06:31:56.633 INFO [stderr] warning: private type `vm::InstanceDictionary` in public interface (error E0446)
Dec 18 06:31:56.633 INFO [stderr]   --> src/vm.rs:39:16
Dec 18 06:31:56.633 INFO [stderr]    |
Dec 18 06:31:56.633 INFO [stderr] 39 |     Dictionary(InstanceDictionary),
Dec 18 06:31:56.633 INFO [stderr]    |                ^^^^^^^^^^^^^^^^^^
Dec 18 06:31:56.633 INFO [stderr]    |
Dec 18 06:31:56.633 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!
Dec 18 06:31:56.633 INFO [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 18 06:31:56.633 INFO [stderr] 
Dec 18 06:31:58.522 INFO [stderr] warning: function is never used: `tuple_type`
Dec 18 06:31:58.522 INFO [stderr]    --> src/types.rs:184:1
Dec 18 06:31:58.522 INFO [stderr]     |
Dec 18 06:31:58.522 INFO [stderr] 184 | pub fn tuple_type(n: usize) -> (String, Type) {
Dec 18 06:31:58.522 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:58.522 INFO [stderr]     |
Dec 18 06:31:58.522 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 18 06:31:58.522 INFO [stderr] 
Dec 18 06:31:58.522 INFO [stderr] warning: function is never used: `walk_module`
Dec 18 06:31:58.522 INFO [stderr]    --> src/module.rs:300:1
Dec 18 06:31:58.522 INFO [stderr]     |
Dec 18 06:31:58.522 INFO [stderr] 300 | pub fn walk_module<Ident, V: Visitor<Ident>>(visitor: &mut V, module: &Module<Ident>) {
Dec 18 06:31:58.522 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:58.522 INFO [stderr] 
Dec 18 06:31:58.522 INFO [stderr] warning: method is never used: `valid`
Dec 18 06:31:58.522 INFO [stderr]    --> src/lexer.rs:251:5
Dec 18 06:31:58.523 INFO [stderr]     |
Dec 18 06:31:58.523 INFO [stderr] 251 |     pub fn valid(&self) -> bool {
Dec 18 06:31:58.523 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:58.523 INFO [stderr] 
Dec 18 06:31:58.523 INFO [stderr] warning: field is never used: `from`
Dec 18 06:31:58.523 INFO [stderr]   --> src/graph.rs:24:5
Dec 18 06:31:58.523 INFO [stderr]    |
Dec 18 06:31:58.523 INFO [stderr] 24 |     from: VertexIndex,
Dec 18 06:31:58.523 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 18 06:31:58.523 INFO [stderr] 
Dec 18 06:31:58.528 INFO [stderr] warning: method is never used: `get_assembly`
Dec 18 06:31:58.528 INFO [stderr]    --> src/vm.rs:178:5
Dec 18 06:31:58.528 INFO [stderr]     |
Dec 18 06:31:58.528 INFO [stderr] 178 |     pub fn get_assembly(&self, index: usize) -> &Assembly {
Dec 18 06:31:58.528 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:58.528 INFO [stderr] 
Dec 18 06:31:58.528 INFO [stderr] warning: method is never used: `from_expr`
Dec 18 06:31:58.528 INFO [stderr]   --> src/core.rs:21:5
Dec 18 06:31:58.528 INFO [stderr]    |
Dec 18 06:31:58.528 INFO [stderr] 21 |     pub fn from_expr(expr: Expr<Id>) -> Module<Id> {
Dec 18 06:31:58.528 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:58.528 INFO [stderr] 
Dec 18 06:31:58.528 INFO [stderr] warning: function is never used: `walk_module`
Dec 18 06:31:58.528 INFO [stderr]    --> src/core.rs:349:5
Dec 18 06:31:58.528 INFO [stderr]     |
Dec 18 06:31:58.528 INFO [stderr] 349 |     pub fn walk_module<V: Visitor<Ident>, Ident>(visitor: &mut V, mut module: Module<Ident>) -> Module<Ident> {
Dec 18 06:31:58.528 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:58.528 INFO [stderr] 
Dec 18 06:31:58.528 INFO [stderr] warning: function is never used: `walk_binding`
Dec 18 06:31:58.528 INFO [stderr]    --> src/core.rs:358:5
Dec 18 06:31:58.528 INFO [stderr]     |
Dec 18 06:31:58.528 INFO [stderr] 358 |     pub fn walk_binding<V: Visitor<Ident>, Ident>(visitor: &mut V, binding: Binding<Ident>) -> Binding<Ident> {
Dec 18 06:31:58.529 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:58.529 INFO [stderr] 
Dec 18 06:31:58.529 INFO [stderr] warning: function is never used: `walk_expr`
Dec 18 06:31:58.529 INFO [stderr]    --> src/core.rs:366:5
Dec 18 06:31:58.529 INFO [stderr]     |
Dec 18 06:31:58.529 INFO [stderr] 366 |     pub fn walk_expr<V: Visitor<Ident>, Ident>(visitor: &mut V, expr: Expr<Ident>) -> Expr<Ident> {
Dec 18 06:31:58.529 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:58.529 INFO [stderr] 
Dec 18 06:31:58.529 INFO [stderr] warning: function is never used: `walk_alternative`
Dec 18 06:31:58.529 INFO [stderr]    --> src/core.rs:391:5
Dec 18 06:31:58.529 INFO [stderr]     |
Dec 18 06:31:58.529 INFO [stderr] 391 |     pub fn walk_alternative<V: Visitor<Ident>, Ident>(visitor: &mut V, alt: Alternative<Ident>) -> Alternative<Ident> {
Dec 18 06:31:58.529 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:58.529 INFO [stderr] 
Dec 18 06:31:58.529 INFO [stderr] warning: function is never used: `translate_expr`
Dec 18 06:31:58.529 INFO [stderr]    --> src/core.rs:417:5
Dec 18 06:31:58.529 INFO [stderr]     |
Dec 18 06:31:58.529 INFO [stderr] 417 |     pub fn translate_expr(expr: module::TypedExpr<Name>) -> Expr<Id<Name>> {
Dec 18 06:31:58.529 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:31:58.529 INFO [stderr] 
Dec 18 06:31:58.778 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.78s
Dec 18 06:32:00.107 INFO running `"docker" "inspect" "60dcff2973e9049310774f2bc4b4529e42d053d2462294291572ee92f94ed625"`
Dec 18 06:32:00.546 INFO running `"docker" "rm" "-f" "60dcff2973e9049310774f2bc4b4529e42d053d2462294291572ee92f94ed625"`
Dec 18 06:32:00.864 INFO [stdout] 60dcff2973e9049310774f2bc4b4529e42d053d2462294291572ee92f94ed625