[INFO] cloning repository https://github.com/bwhetherington/rscript
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bwhetherington/rscript" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbwhetherington%2Frscript", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbwhetherington%2Frscript'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e512dba278b7bc4f25b948d357ec7c7bf37db8d0
[INFO] testing bwhetherington/rscript against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbwhetherington%2Frscript" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bwhetherington/rscript on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bwhetherington/rscript
[INFO] finished tweaking git repo https://github.com/bwhetherington/rscript
[INFO] tweaked toml for git repo https://github.com/bwhetherington/rscript written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/bwhetherington/rscript already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f59f76beb62fa1c957a1459686f50e3b3a1bebe13bfaeed797b8a9100c02f34
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7f59f76beb62fa1c957a1459686f50e3b3a1bebe13bfaeed797b8a9100c02f34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f59f76beb62fa1c957a1459686f50e3b3a1bebe13bfaeed797b8a9100c02f34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f59f76beb62fa1c957a1459686f50e3b3a1bebe13bfaeed797b8a9100c02f34", kill_on_drop: false }`
[INFO] [stdout] 7f59f76beb62fa1c957a1459686f50e3b3a1bebe13bfaeed797b8a9100c02f34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 136379001a83bfe03063890c2783366ac2faa728eb8914182030cb341558cfa4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "136379001a83bfe03063890c2783366ac2faa728eb8914182030cb341558cfa4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rscript v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/codegen/js.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/engine/vm.rs:562:17
[INFO] [stdout]     |
[INFO] [stdout] 562 |                 (_, xs) => Err(EvalError::arity_mismatch(1, xs.len())),
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]    --> src/engine/vm.rs:329:41
[INFO] [stdout]     |
[INFO] [stdout] 329 |         obj_proto.define_method("new", |engine, this, args| {
[INFO] [stdout]     |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]    --> src/engine/vm.rs:351:49
[INFO] [stdout]     |
[INFO] [stdout] 351 |         obj_proto.define_method("instance_of", |engine, this, args| {
[INFO] [stdout]     |                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]    --> src/engine/vm.rs:572:41
[INFO] [stdout]     |
[INFO] [stdout] 572 |         str_proto.define_method("new", |engine, this, args| {
[INFO] [stdout]     |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]     --> src/engine/vm.rs:1644:35
[INFO] [stdout]      |
[INFO] [stdout] 1644 |     fn capture_environment(&self, expr: &Expression) -> Frame {
[INFO] [stdout]      |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]     --> src/engine/vm.rs:1710:21
[INFO] [stdout]      |
[INFO] [stdout] 1710 |                     other => self.evaluate(then),
[INFO] [stdout]      |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/parser/mod.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let col = self.col as isize + col_offset;
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `row`
[INFO] [stdout]   --> src/parser/mod.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let row = self.row as isize + row_offset;
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_row`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]     --> src/parser/ast.rs:1559:21
[INFO] [stdout]      |
[INFO] [stdout] 1559 |             Boolean(b) => write!(f, "False"),
[INFO] [stdout]      |                     ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]     --> src/parser/ast.rs:1563:31
[INFO] [stdout]      |
[INFO] [stdout] 1563 |             Block(statements, expr) => {
[INFO] [stdout]      |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `statement`
[INFO] [stdout]     --> src/parser/ast.rs:1565:21
[INFO] [stdout]      |
[INFO] [stdout] 1565 |                 for statement in statements {}
[INFO] [stdout]      |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_statement`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `loc`
[INFO] [stdout]    --> src/parser/lexer.rs:339:13
[INFO] [stdout]     |
[INFO] [stdout] 339 |         let loc = self.loc;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_loc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/engine/vm.rs:1645:13
[INFO] [stdout]      |
[INFO] [stdout] 1645 |         let mut frame = HashMap::new();
[INFO] [stdout]      |             ----^^^^^
[INFO] [stdout]      |             |
[INFO] [stdout]      |             help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Builtin` in public interface (error E0446)
[INFO] [stdout]   --> src/engine/vm2.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Builtin(Builtin),
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Str`
[INFO] [stdout]  --> src/codegen/js.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | type Str = Rc<str>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Definition`
[INFO] [stdout]  --> src/codegen/js.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | type Definition = (Str, JsValue);
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `JsBody`
[INFO] [stdout]  --> src/codegen/js.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum JsBody {
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `JsStatement`
[INFO] [stdout]   --> src/codegen/js.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum JsStatement {}
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `JsValue`
[INFO] [stdout]   --> src/codegen/js.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum JsValue {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/engine/env.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new() -> Environment {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `frames_mut`
[INFO] [stdout]   --> src/engine/ignore.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn frames_mut(&mut self) -> impl Iterator<Item = &mut Frame> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_isize`
[INFO] [stdout]   --> src/engine/vm.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn is_isize(num: f64) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `instructions`
[INFO] [stdout]    --> src/engine/vm.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 145 |     instructions: Vec<Statement>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `define_io_built_ins`
[INFO] [stdout]    --> src/engine/vm.rs:771:8
[INFO] [stdout]     |
[INFO] [stdout] 771 |     fn define_io_built_ins(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `module_root`
[INFO] [stdout]     --> src/engine/vm.rs:1167:8
[INFO] [stdout]      |
[INFO] [stdout] 1167 |     fn module_root(&self) -> &Node {
[INFO] [stdout]      |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `capture_environment`
[INFO] [stdout]     --> src/engine/vm.rs:1644:8
[INFO] [stdout]      |
[INFO] [stdout] 1644 |     fn capture_environment(&self, expr: &Expression) -> Frame {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_interface_alias_statement`
[INFO] [stdout]     --> src/parser/ast.rs:1357:8
[INFO] [stdout]      |
[INFO] [stdout] 1357 |     fn parse_interface_alias_statement(&mut self) -> ParseResult<InterfaceStatement> {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `show_file`
[INFO] [stdout]    --> src/parser/lexer.rs:234:4
[INFO] [stdout]     |
[INFO] [stdout] 234 | fn show_file(file: Option<&String>) -> String {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Builtin` in public interface (error E0446)
[INFO] [stdout]   --> src/engine/vm2.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Builtin(Builtin),
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.63s
[INFO] running `Command { std: "docker" "inspect" "136379001a83bfe03063890c2783366ac2faa728eb8914182030cb341558cfa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "136379001a83bfe03063890c2783366ac2faa728eb8914182030cb341558cfa4", kill_on_drop: false }`
[INFO] [stdout] 136379001a83bfe03063890c2783366ac2faa728eb8914182030cb341558cfa4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82ee4b65604118c14291813081bbe1ba67715355c2a335e44cb09985640764d3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "82ee4b65604118c14291813081bbe1ba67715355c2a335e44cb09985640764d3", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/codegen/js.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rscript v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/engine/vm.rs:562:17
[INFO] [stdout]     |
[INFO] [stdout] 562 |                 (_, xs) => Err(EvalError::arity_mismatch(1, xs.len())),
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]    --> src/engine/vm.rs:329:41
[INFO] [stdout]     |
[INFO] [stdout] 329 |         obj_proto.define_method("new", |engine, this, args| {
[INFO] [stdout]     |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]    --> src/engine/vm.rs:351:49
[INFO] [stdout]     |
[INFO] [stdout] 351 |         obj_proto.define_method("instance_of", |engine, this, args| {
[INFO] [stdout]     |                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]    --> src/engine/vm.rs:572:41
[INFO] [stdout]     |
[INFO] [stdout] 572 |         str_proto.define_method("new", |engine, this, args| {
[INFO] [stdout]     |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]     --> src/engine/vm.rs:1644:35
[INFO] [stdout]      |
[INFO] [stdout] 1644 |     fn capture_environment(&self, expr: &Expression) -> Frame {
[INFO] [stdout]      |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]     --> src/engine/vm.rs:1710:21
[INFO] [stdout]      |
[INFO] [stdout] 1710 |                     other => self.evaluate(then),
[INFO] [stdout]      |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/parser/mod.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let col = self.col as isize + col_offset;
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `row`
[INFO] [stdout]   --> src/parser/mod.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let row = self.row as isize + row_offset;
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_row`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]     --> src/parser/ast.rs:1559:21
[INFO] [stdout]      |
[INFO] [stdout] 1559 |             Boolean(b) => write!(f, "False"),
[INFO] [stdout]      |                     ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]     --> src/parser/ast.rs:1563:31
[INFO] [stdout]      |
[INFO] [stdout] 1563 |             Block(statements, expr) => {
[INFO] [stdout]      |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `statement`
[INFO] [stdout]     --> src/parser/ast.rs:1565:21
[INFO] [stdout]      |
[INFO] [stdout] 1565 |                 for statement in statements {}
[INFO] [stdout]      |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_statement`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `loc`
[INFO] [stdout]    --> src/parser/lexer.rs:339:13
[INFO] [stdout]     |
[INFO] [stdout] 339 |         let loc = self.loc;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_loc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/engine/vm.rs:1645:13
[INFO] [stdout]      |
[INFO] [stdout] 1645 |         let mut frame = HashMap::new();
[INFO] [stdout]      |             ----^^^^^
[INFO] [stdout]      |             |
[INFO] [stdout]      |             help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Builtin` in public interface (error E0446)
[INFO] [stdout]   --> src/engine/vm2.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Builtin(Builtin),
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Str`
[INFO] [stdout]  --> src/codegen/js.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | type Str = Rc<str>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Definition`
[INFO] [stdout]  --> src/codegen/js.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | type Definition = (Str, JsValue);
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `JsBody`
[INFO] [stdout]  --> src/codegen/js.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum JsBody {
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `JsStatement`
[INFO] [stdout]   --> src/codegen/js.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum JsStatement {}
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `JsValue`
[INFO] [stdout]   --> src/codegen/js.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum JsValue {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/engine/env.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new() -> Environment {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `frames_mut`
[INFO] [stdout]   --> src/engine/ignore.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn frames_mut(&mut self) -> impl Iterator<Item = &mut Frame> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_isize`
[INFO] [stdout]   --> src/engine/vm.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn is_isize(num: f64) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `instructions`
[INFO] [stdout]    --> src/engine/vm.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 145 |     instructions: Vec<Statement>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `define_io_built_ins`
[INFO] [stdout]    --> src/engine/vm.rs:771:8
[INFO] [stdout]     |
[INFO] [stdout] 771 |     fn define_io_built_ins(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `module_root`
[INFO] [stdout]     --> src/engine/vm.rs:1167:8
[INFO] [stdout]      |
[INFO] [stdout] 1167 |     fn module_root(&self) -> &Node {
[INFO] [stdout]      |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `capture_environment`
[INFO] [stdout]     --> src/engine/vm.rs:1644:8
[INFO] [stdout]      |
[INFO] [stdout] 1644 |     fn capture_environment(&self, expr: &Expression) -> Frame {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_interface_alias_statement`
[INFO] [stdout]     --> src/parser/ast.rs:1357:8
[INFO] [stdout]      |
[INFO] [stdout] 1357 |     fn parse_interface_alias_statement(&mut self) -> ParseResult<InterfaceStatement> {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `show_file`
[INFO] [stdout]    --> src/parser/lexer.rs:234:4
[INFO] [stdout]     |
[INFO] [stdout] 234 | fn show_file(file: Option<&String>) -> String {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/codegen/js.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/engine/vm.rs:562:17
[INFO] [stdout]     |
[INFO] [stdout] 562 |                 (_, xs) => Err(EvalError::arity_mismatch(1, xs.len())),
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]    --> src/engine/vm.rs:329:41
[INFO] [stdout]     |
[INFO] [stdout] 329 |         obj_proto.define_method("new", |engine, this, args| {
[INFO] [stdout]     |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]    --> src/engine/vm.rs:351:49
[INFO] [stdout]     |
[INFO] [stdout] 351 |         obj_proto.define_method("instance_of", |engine, this, args| {
[INFO] [stdout]     |                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]    --> src/engine/vm.rs:572:41
[INFO] [stdout]     |
[INFO] [stdout] 572 |         str_proto.define_method("new", |engine, this, args| {
[INFO] [stdout]     |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]     --> src/engine/vm.rs:1644:35
[INFO] [stdout]      |
[INFO] [stdout] 1644 |     fn capture_environment(&self, expr: &Expression) -> Frame {
[INFO] [stdout]      |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]     --> src/engine/vm.rs:1710:21
[INFO] [stdout]      |
[INFO] [stdout] 1710 |                     other => self.evaluate(then),
[INFO] [stdout]      |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/parser/mod.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let col = self.col as isize + col_offset;
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `row`
[INFO] [stdout]   --> src/parser/mod.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let row = self.row as isize + row_offset;
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_row`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]     --> src/parser/ast.rs:1559:21
[INFO] [stdout]      |
[INFO] [stdout] 1559 |             Boolean(b) => write!(f, "False"),
[INFO] [stdout]      |                     ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]     --> src/parser/ast.rs:1563:31
[INFO] [stdout]      |
[INFO] [stdout] 1563 |             Block(statements, expr) => {
[INFO] [stdout]      |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `statement`
[INFO] [stdout]     --> src/parser/ast.rs:1565:21
[INFO] [stdout]      |
[INFO] [stdout] 1565 |                 for statement in statements {}
[INFO] [stdout]      |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_statement`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `loc`
[INFO] [stdout]    --> src/parser/lexer.rs:339:13
[INFO] [stdout]     |
[INFO] [stdout] 339 |         let loc = self.loc;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_loc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/engine/vm.rs:1645:13
[INFO] [stdout]      |
[INFO] [stdout] 1645 |         let mut frame = HashMap::new();
[INFO] [stdout]      |             ----^^^^^
[INFO] [stdout]      |             |
[INFO] [stdout]      |             help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Builtin` in public interface (error E0446)
[INFO] [stdout]   --> src/engine/vm2.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Builtin(Builtin),
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Str`
[INFO] [stdout]  --> src/codegen/js.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | type Str = Rc<str>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Definition`
[INFO] [stdout]  --> src/codegen/js.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | type Definition = (Str, JsValue);
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `JsBody`
[INFO] [stdout]  --> src/codegen/js.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum JsBody {
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `JsStatement`
[INFO] [stdout]   --> src/codegen/js.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum JsStatement {}
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `JsValue`
[INFO] [stdout]   --> src/codegen/js.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum JsValue {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/engine/env.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new() -> Environment {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `frames_mut`
[INFO] [stdout]   --> src/engine/ignore.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn frames_mut(&mut self) -> impl Iterator<Item = &mut Frame> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_isize`
[INFO] [stdout]   --> src/engine/vm.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn is_isize(num: f64) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `instructions`
[INFO] [stdout]    --> src/engine/vm.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 145 |     instructions: Vec<Statement>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `define_io_built_ins`
[INFO] [stdout]    --> src/engine/vm.rs:771:8
[INFO] [stdout]     |
[INFO] [stdout] 771 |     fn define_io_built_ins(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `module_root`
[INFO] [stdout]     --> src/engine/vm.rs:1167:8
[INFO] [stdout]      |
[INFO] [stdout] 1167 |     fn module_root(&self) -> &Node {
[INFO] [stdout]      |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `capture_environment`
[INFO] [stdout]     --> src/engine/vm.rs:1644:8
[INFO] [stdout]      |
[INFO] [stdout] 1644 |     fn capture_environment(&self, expr: &Expression) -> Frame {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_interface_alias_statement`
[INFO] [stdout]     --> src/parser/ast.rs:1357:8
[INFO] [stdout]      |
[INFO] [stdout] 1357 |     fn parse_interface_alias_statement(&mut self) -> ParseResult<InterfaceStatement> {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `show_file`
[INFO] [stdout]    --> src/parser/lexer.rs:234:4
[INFO] [stdout]     |
[INFO] [stdout] 234 | fn show_file(file: Option<&String>) -> String {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Builtin` in public interface (error E0446)
[INFO] [stdout]   --> src/engine/vm2.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Builtin(Builtin),
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.00s
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "82ee4b65604118c14291813081bbe1ba67715355c2a335e44cb09985640764d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82ee4b65604118c14291813081bbe1ba67715355c2a335e44cb09985640764d3", kill_on_drop: false }`
[INFO] [stdout] 82ee4b65604118c14291813081bbe1ba67715355c2a335e44cb09985640764d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a83a0f7a87d9e76a9b43d1dddb93b7976a27ca3bcbb249a25b0f49a327aae787
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a83a0f7a87d9e76a9b43d1dddb93b7976a27ca3bcbb249a25b0f49a327aae787", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/codegen/js.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/engine/vm.rs:562:17
[INFO] [stderr]     |
[INFO] [stderr] 562 |                 (_, xs) => Err(EvalError::arity_mismatch(1, xs.len())),
[INFO] [stderr]     |                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `engine`
[INFO] [stderr]    --> src/engine/vm.rs:329:41
[INFO] [stderr]     |
[INFO] [stderr] 329 |         obj_proto.define_method("new", |engine, this, args| {
[INFO] [stderr]     |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `engine`
[INFO] [stderr]    --> src/engine/vm.rs:351:49
[INFO] [stderr]     |
[INFO] [stderr] 351 |         obj_proto.define_method("instance_of", |engine, this, args| {
[INFO] [stderr]     |                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `engine`
[INFO] [stderr]    --> src/engine/vm.rs:572:41
[INFO] [stderr]     |
[INFO] [stderr] 572 |         str_proto.define_method("new", |engine, this, args| {
[INFO] [stderr]     |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expr`
[INFO] [stderr]     --> src/engine/vm.rs:1644:35
[INFO] [stderr]      |
[INFO] [stderr] 1644 |     fn capture_environment(&self, expr: &Expression) -> Frame {
[INFO] [stderr]      |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]     --> src/engine/vm.rs:1710:21
[INFO] [stderr]      |
[INFO] [stderr] 1710 |                     other => self.evaluate(then),
[INFO] [stderr]      |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/parser/mod.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |         let col = self.col as isize + col_offset;
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `row`
[INFO] [stderr]   --> src/parser/mod.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let row = self.row as isize + row_offset;
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_row`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]     --> src/parser/ast.rs:1559:21
[INFO] [stderr]      |
[INFO] [stderr] 1559 |             Boolean(b) => write!(f, "False"),
[INFO] [stderr]      |                     ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expr`
[INFO] [stderr]     --> src/parser/ast.rs:1563:31
[INFO] [stderr]      |
[INFO] [stderr] 1563 |             Block(statements, expr) => {
[INFO] [stderr]      |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `statement`
[INFO] [stderr]     --> src/parser/ast.rs:1565:21
[INFO] [stderr]      |
[INFO] [stderr] 1565 |                 for statement in statements {}
[INFO] [stderr]      |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_statement`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `loc`
[INFO] [stderr]    --> src/parser/lexer.rs:339:13
[INFO] [stderr]     |
[INFO] [stderr] 339 |         let loc = self.loc;
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_loc`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/engine/vm.rs:1645:13
[INFO] [stderr]      |
[INFO] [stderr] 1645 |         let mut frame = HashMap::new();
[INFO] [stderr]      |             ----^^^^^
[INFO] [stderr]      |             |
[INFO] [stderr]      |             help: remove this `mut`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: private type `Builtin` in public interface (error E0446)
[INFO] [stderr]   --> src/engine/vm2.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |     Builtin(Builtin),
[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: type alias is never used: `Str`
[INFO] [stderr]  --> src/codegen/js.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | type Str = Rc<str>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Definition`
[INFO] [stderr]  --> src/codegen/js.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | type Definition = (Str, JsValue);
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `JsBody`
[INFO] [stderr]  --> src/codegen/js.rs:8:10
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub enum JsBody {
[INFO] [stderr]   |          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `JsStatement`
[INFO] [stderr]   --> src/codegen/js.rs:13:10
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub enum JsStatement {}
[INFO] [stderr]    |          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `JsValue`
[INFO] [stderr]   --> src/codegen/js.rs:15:10
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub enum JsValue {
[INFO] [stderr]    |          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/engine/env.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn new() -> Environment {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `frames_mut`
[INFO] [stderr]   --> src/engine/ignore.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn frames_mut(&mut self) -> impl Iterator<Item = &mut Frame> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_isize`
[INFO] [stderr]   --> src/engine/vm.rs:14:4
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn is_isize(num: f64) -> bool {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `instructions`
[INFO] [stderr]    --> src/engine/vm.rs:145:5
[INFO] [stderr]     |
[INFO] [stderr] 145 |     instructions: Vec<Statement>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `define_io_built_ins`
[INFO] [stderr]    --> src/engine/vm.rs:771:8
[INFO] [stderr]     |
[INFO] [stderr] 771 |     fn define_io_built_ins(&mut self) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `module_root`
[INFO] [stderr]     --> src/engine/vm.rs:1167:8
[INFO] [stderr]      |
[INFO] [stderr] 1167 |     fn module_root(&self) -> &Node {
[INFO] [stderr]      |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `capture_environment`
[INFO] [stderr]     --> src/engine/vm.rs:1644:8
[INFO] [stderr]      |
[INFO] [stderr] 1644 |     fn capture_environment(&self, expr: &Expression) -> Frame {
[INFO] [stderr]      |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse_interface_alias_statement`
[INFO] [stderr]     --> src/parser/ast.rs:1357:8
[INFO] [stderr]      |
[INFO] [stderr] 1357 |     fn parse_interface_alias_statement(&mut self) -> ParseResult<InterfaceStatement> {
[INFO] [stderr]      |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `show_file`
[INFO] [stderr]    --> src/parser/lexer.rs:234:4
[INFO] [stderr]     |
[INFO] [stderr] 234 | fn show_file(file: Option<&String>) -> String {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 29 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: private type `Builtin` in public interface (error E0446)
[INFO] [stderr]   --> src/engine/vm2.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |     Builtin(Builtin),
[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: unused import: `std::fmt`
[INFO] [stderr]  --> src/codegen/js.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/engine/vm.rs:562:17
[INFO] [stderr]     |
[INFO] [stderr] 562 |                 (_, xs) => Err(EvalError::arity_mismatch(1, xs.len())),
[INFO] [stderr]     |                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `engine`
[INFO] [stderr]    --> src/engine/vm.rs:329:41
[INFO] [stderr]     |
[INFO] [stderr] 329 |         obj_proto.define_method("new", |engine, this, args| {
[INFO] [stderr]     |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `engine`
[INFO] [stderr]    --> src/engine/vm.rs:351:49
[INFO] [stderr]     |
[INFO] [stderr] 351 |         obj_proto.define_method("instance_of", |engine, this, args| {
[INFO] [stderr]     |                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `engine`
[INFO] [stderr]    --> src/engine/vm.rs:572:41
[INFO] [stderr]     |
[INFO] [stderr] 572 |         str_proto.define_method("new", |engine, this, args| {
[INFO] [stderr]     |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expr`
[INFO] [stderr]     --> src/engine/vm.rs:1644:35
[INFO] [stderr]      |
[INFO] [stderr] 1644 |     fn capture_environment(&self, expr: &Expression) -> Frame {
[INFO] [stderr]      |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]     --> src/engine/vm.rs:1710:21
[INFO] [stderr]      |
[INFO] [stderr] 1710 |                     other => self.evaluate(then),
[INFO] [stderr]      |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/parser/mod.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |         let col = self.col as isize + col_offset;
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `row`
[INFO] [stderr]   --> src/parser/mod.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let row = self.row as isize + row_offset;
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_row`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]     --> src/parser/ast.rs:1559:21
[INFO] [stderr]      |
[INFO] [stderr] 1559 |             Boolean(b) => write!(f, "False"),
[INFO] [stderr]      |                     ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expr`
[INFO] [stderr]     --> src/parser/ast.rs:1563:31
[INFO] [stderr]      |
[INFO] [stderr] 1563 |             Block(statements, expr) => {
[INFO] [stderr]      |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `statement`
[INFO] [stderr]     --> src/parser/ast.rs:1565:21
[INFO] [stderr]      |
[INFO] [stderr] 1565 |                 for statement in statements {}
[INFO] [stderr]      |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_statement`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `loc`
[INFO] [stderr]    --> src/parser/lexer.rs:339:13
[INFO] [stderr]     |
[INFO] [stderr] 339 |         let loc = self.loc;
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_loc`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/engine/vm.rs:1645:13
[INFO] [stderr]      |
[INFO] [stderr] 1645 |         let mut frame = HashMap::new();
[INFO] [stderr]      |             ----^^^^^
[INFO] [stderr]      |             |
[INFO] [stderr]      |             help: remove this `mut`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: private type `Builtin` in public interface (error E0446)
[INFO] [stderr]   --> src/engine/vm2.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |     Builtin(Builtin),
[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: type alias is never used: `Str`
[INFO] [stderr]  --> src/codegen/js.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | type Str = Rc<str>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Definition`
[INFO] [stderr]  --> src/codegen/js.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | type Definition = (Str, JsValue);
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `JsBody`
[INFO] [stderr]  --> src/codegen/js.rs:8:10
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub enum JsBody {
[INFO] [stderr]   |          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `JsStatement`
[INFO] [stderr]   --> src/codegen/js.rs:13:10
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub enum JsStatement {}
[INFO] [stderr]    |          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `JsValue`
[INFO] [stderr]   --> src/codegen/js.rs:15:10
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub enum JsValue {
[INFO] [stderr]    |          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/engine/env.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn new() -> Environment {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `frames_mut`
[INFO] [stderr]   --> src/engine/ignore.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn frames_mut(&mut self) -> impl Iterator<Item = &mut Frame> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_isize`
[INFO] [stderr]   --> src/engine/vm.rs:14:4
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn is_isize(num: f64) -> bool {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `instructions`
[INFO] [stderr]    --> src/engine/vm.rs:145:5
[INFO] [stderr]     |
[INFO] [stderr] 145 |     instructions: Vec<Statement>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `define_io_built_ins`
[INFO] [stderr]    --> src/engine/vm.rs:771:8
[INFO] [stderr]     |
[INFO] [stderr] 771 |     fn define_io_built_ins(&mut self) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `module_root`
[INFO] [stderr]     --> src/engine/vm.rs:1167:8
[INFO] [stderr]      |
[INFO] [stderr] 1167 |     fn module_root(&self) -> &Node {
[INFO] [stderr]      |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `capture_environment`
[INFO] [stderr]     --> src/engine/vm.rs:1644:8
[INFO] [stderr]      |
[INFO] [stderr] 1644 |     fn capture_environment(&self, expr: &Expression) -> Frame {
[INFO] [stderr]      |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse_interface_alias_statement`
[INFO] [stderr]     --> src/parser/ast.rs:1357:8
[INFO] [stderr]      |
[INFO] [stderr] 1357 |     fn parse_interface_alias_statement(&mut self) -> ParseResult<InterfaceStatement> {
[INFO] [stderr]      |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `show_file`
[INFO] [stderr]    --> src/parser/lexer.rs:234:4
[INFO] [stderr]     |
[INFO] [stderr] 234 | fn show_file(file: Option<&String>) -> String {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 29 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rscript-318afa207e156fd3
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rscript-3d70254e2ce361fe
[INFO] [stderr]    Doc-tests rscript
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a83a0f7a87d9e76a9b43d1dddb93b7976a27ca3bcbb249a25b0f49a327aae787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a83a0f7a87d9e76a9b43d1dddb93b7976a27ca3bcbb249a25b0f49a327aae787", kill_on_drop: false }`
[INFO] [stdout] a83a0f7a87d9e76a9b43d1dddb93b7976a27ca3bcbb249a25b0f49a327aae787
