[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] 418bb3ffc8aeed9eca7f8c0fac5dab70e493c84b
[INFO] testing bwhetherington/rscript against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbwhetherington%2Frscript" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bwhetherington/rscript on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "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-4/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" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52b04b2225bd30679a9cf55bb377e595f1cf9abe34e5dfd4c1f8e96730ee3735
[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" "52b04b2225bd30679a9cf55bb377e595f1cf9abe34e5dfd4c1f8e96730ee3735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52b04b2225bd30679a9cf55bb377e595f1cf9abe34e5dfd4c1f8e96730ee3735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52b04b2225bd30679a9cf55bb377e595f1cf9abe34e5dfd4c1f8e96730ee3735", kill_on_drop: false }`
[INFO] [stdout] 52b04b2225bd30679a9cf55bb377e595f1cf9abe34e5dfd4c1f8e96730ee3735
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62170a3a16eb8857b3ad2d10ade7080634af635c245c86b2ac59af6ab60a0148
[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" "62170a3a16eb8857b3ad2d10ade7080634af635c245c86b2ac59af6ab60a0148", 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:546:17
[INFO] [stdout]     |
[INFO] [stdout] 546 |                 (_, 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: 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] 
[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:1590:35
[INFO] [stdout]      |
[INFO] [stdout] 1590 |     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:1656:21
[INFO] [stdout]      |
[INFO] [stdout] 1656 |                     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:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         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:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         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: `identifier`
[INFO] [stdout]    --> src/parser/ast.rs:992:21
[INFO] [stdout]     |
[INFO] [stdout] 992 |                 let identifier = self.parse_identifier()?;
[INFO] [stdout]     |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_identifier`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]     --> src/parser/ast.rs:1500:21
[INFO] [stdout]      |
[INFO] [stdout] 1500 |             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:1504:31
[INFO] [stdout]      |
[INFO] [stdout] 1504 |             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:1506:21
[INFO] [stdout]      |
[INFO] [stdout] 1506 |                 for statement in statements {}
[INFO] [stdout]      |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_statement`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/engine/vm.rs:1591:13
[INFO] [stdout]      |
[INFO] [stdout] 1591 |         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: variable does not need to be mutable
[INFO] [stdout]     --> src/parser/ast.rs:1385:9
[INFO] [stdout]      |
[INFO] [stdout] 1385 |     let mut others = Vec::new();
[INFO] [stdout]      |         ----^^^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[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: 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: `capture_environment`
[INFO] [stdout]     --> src/engine/vm.rs:1590:8
[INFO] [stdout]      |
[INFO] [stdout] 1590 |     fn capture_environment(&self, expr: &Expression) -> Frame {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `WeakPtr`
[INFO] [stdout]     --> src/engine/vm.rs:1882:1
[INFO] [stdout]      |
[INFO] [stdout] 1882 | type WeakPtr<T> = Weak<RefCell<T>>;
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_interface_alias_statement`
[INFO] [stdout]     --> src/parser/ast.rs:1298:8
[INFO] [stdout]      |
[INFO] [stdout] 1298 |     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:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn show_file(file: Option<&String>) -> String {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/engine/vm.rs:1836:17
[INFO] [stdout]      |
[INFO] [stdout] 1836 |                 self.call_method(&new_obj, "new", &args);
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/engine/vm.rs:1857:17
[INFO] [stdout]      |
[INFO] [stdout] 1857 |                 self.call_method(&new_obj, "new", &args);
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.81s
[INFO] running `Command { std: "docker" "inspect" "62170a3a16eb8857b3ad2d10ade7080634af635c245c86b2ac59af6ab60a0148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62170a3a16eb8857b3ad2d10ade7080634af635c245c86b2ac59af6ab60a0148", kill_on_drop: false }`
[INFO] [stdout] 62170a3a16eb8857b3ad2d10ade7080634af635c245c86b2ac59af6ab60a0148
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3feda9672add8fd4371f0aa930dde1730c0a59f12f7b2902ca40086f27db06c9
[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" "3feda9672add8fd4371f0aa930dde1730c0a59f12f7b2902ca40086f27db06c9", 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:546:17
[INFO] [stdout]     |
[INFO] [stdout] 546 |                 (_, 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: 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] 
[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:1590:35
[INFO] [stdout]      |
[INFO] [stdout] 1590 |     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:1656:21
[INFO] [stdout]      |
[INFO] [stdout] 1656 |                     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:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         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:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         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: `identifier`
[INFO] [stdout]    --> src/parser/ast.rs:992:21
[INFO] [stdout]     |
[INFO] [stdout] 992 |                 let identifier = self.parse_identifier()?;
[INFO] [stdout]     |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_identifier`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]     --> src/parser/ast.rs:1500:21
[INFO] [stdout]      |
[INFO] [stdout] 1500 |             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:1504:31
[INFO] [stdout]      |
[INFO] [stdout] 1504 |             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:1506:21
[INFO] [stdout]      |
[INFO] [stdout] 1506 |                 for statement in statements {}
[INFO] [stdout]      |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_statement`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/engine/vm.rs:1591:13
[INFO] [stdout]      |
[INFO] [stdout] 1591 |         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: variable does not need to be mutable
[INFO] [stdout]     --> src/parser/ast.rs:1385:9
[INFO] [stdout]      |
[INFO] [stdout] 1385 |     let mut others = Vec::new();
[INFO] [stdout]      |         ----^^^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[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: 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: `capture_environment`
[INFO] [stdout]     --> src/engine/vm.rs:1590:8
[INFO] [stdout]      |
[INFO] [stdout] 1590 |     fn capture_environment(&self, expr: &Expression) -> Frame {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `WeakPtr`
[INFO] [stdout]     --> src/engine/vm.rs:1882:1
[INFO] [stdout]      |
[INFO] [stdout] 1882 | type WeakPtr<T> = Weak<RefCell<T>>;
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_interface_alias_statement`
[INFO] [stdout]     --> src/parser/ast.rs:1298:8
[INFO] [stdout]      |
[INFO] [stdout] 1298 |     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:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn show_file(file: Option<&String>) -> String {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/engine/vm.rs:1836:17
[INFO] [stdout]      |
[INFO] [stdout] 1836 |                 self.call_method(&new_obj, "new", &args);
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/engine/vm.rs:1857:17
[INFO] [stdout]      |
[INFO] [stdout] 1857 |                 self.call_method(&new_obj, "new", &args);
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 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:546:17
[INFO] [stdout]     |
[INFO] [stdout] 546 |                 (_, 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: 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] 
[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:1590:35
[INFO] [stdout]      |
[INFO] [stdout] 1590 |     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:1656:21
[INFO] [stdout]      |
[INFO] [stdout] 1656 |                     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:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         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:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         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: `identifier`
[INFO] [stdout]    --> src/parser/ast.rs:992:21
[INFO] [stdout]     |
[INFO] [stdout] 992 |                 let identifier = self.parse_identifier()?;
[INFO] [stdout]     |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_identifier`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]     --> src/parser/ast.rs:1500:21
[INFO] [stdout]      |
[INFO] [stdout] 1500 |             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:1504:31
[INFO] [stdout]      |
[INFO] [stdout] 1504 |             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:1506:21
[INFO] [stdout]      |
[INFO] [stdout] 1506 |                 for statement in statements {}
[INFO] [stdout]      |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_statement`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/engine/vm.rs:1591:13
[INFO] [stdout]      |
[INFO] [stdout] 1591 |         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: variable does not need to be mutable
[INFO] [stdout]     --> src/parser/ast.rs:1385:9
[INFO] [stdout]      |
[INFO] [stdout] 1385 |     let mut others = Vec::new();
[INFO] [stdout]      |         ----^^^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[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: 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: `capture_environment`
[INFO] [stdout]     --> src/engine/vm.rs:1590:8
[INFO] [stdout]      |
[INFO] [stdout] 1590 |     fn capture_environment(&self, expr: &Expression) -> Frame {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `WeakPtr`
[INFO] [stdout]     --> src/engine/vm.rs:1882:1
[INFO] [stdout]      |
[INFO] [stdout] 1882 | type WeakPtr<T> = Weak<RefCell<T>>;
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_interface_alias_statement`
[INFO] [stdout]     --> src/parser/ast.rs:1298:8
[INFO] [stdout]      |
[INFO] [stdout] 1298 |     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:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn show_file(file: Option<&String>) -> String {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/engine/vm.rs:1836:17
[INFO] [stdout]      |
[INFO] [stdout] 1836 |                 self.call_method(&new_obj, "new", &args);
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/engine/vm.rs:1857:17
[INFO] [stdout]      |
[INFO] [stdout] 1857 |                 self.call_method(&new_obj, "new", &args);
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.83s
[INFO] running `Command { std: "docker" "inspect" "3feda9672add8fd4371f0aa930dde1730c0a59f12f7b2902ca40086f27db06c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3feda9672add8fd4371f0aa930dde1730c0a59f12f7b2902ca40086f27db06c9", kill_on_drop: false }`
[INFO] [stdout] 3feda9672add8fd4371f0aa930dde1730c0a59f12f7b2902ca40086f27db06c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2a7f0d1703c28c39219a381c4b0341954bb772fae3e1a77088a7b0bd3989d787
[INFO] running `Command { std: "docker" "start" "-a" "2a7f0d1703c28c39219a381c4b0341954bb772fae3e1a77088a7b0bd3989d787", 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:546:17
[INFO] [stderr]     |
[INFO] [stderr] 546 |                 (_, 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: 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] 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:1590:35
[INFO] [stderr]      |
[INFO] [stderr] 1590 |     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:1656:21
[INFO] [stderr]      |
[INFO] [stderr] 1656 |                     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:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |         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:40:13
[INFO] [stderr]    |
[INFO] [stderr] 40 |         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: `identifier`
[INFO] [stderr]    --> src/parser/ast.rs:992:21
[INFO] [stderr]     |
[INFO] [stderr] 992 |                 let identifier = self.parse_identifier()?;
[INFO] [stderr]     |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_identifier`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]     --> src/parser/ast.rs:1500:21
[INFO] [stderr]      |
[INFO] [stderr] 1500 |             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:1504:31
[INFO] [stderr]      |
[INFO] [stderr] 1504 |             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:1506:21
[INFO] [stderr]      |
[INFO] [stderr] 1506 |                 for statement in statements {}
[INFO] [stderr]      |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_statement`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/engine/vm.rs:1591:13
[INFO] [stderr]      |
[INFO] [stderr] 1591 |         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: variable does not need to be mutable
[INFO] [stderr]     --> src/parser/ast.rs:1385:9
[INFO] [stderr]      |
[INFO] [stderr] 1385 |     let mut others = Vec::new();
[INFO] [stderr]      |         ----^^^^^^
[INFO] [stderr]      |         |
[INFO] [stderr]      |         help: remove this `mut`
[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: 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: `capture_environment`
[INFO] [stderr]     --> src/engine/vm.rs:1590:8
[INFO] [stderr]      |
[INFO] [stderr] 1590 |     fn capture_environment(&self, expr: &Expression) -> Frame {
[INFO] [stderr]      |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `WeakPtr`
[INFO] [stderr]     --> src/engine/vm.rs:1882:1
[INFO] [stderr]      |
[INFO] [stderr] 1882 | type WeakPtr<T> = Weak<RefCell<T>>;
[INFO] [stderr]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse_interface_alias_statement`
[INFO] [stderr]     --> src/parser/ast.rs:1298:8
[INFO] [stderr]      |
[INFO] [stderr] 1298 |     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:152:4
[INFO] [stderr]     |
[INFO] [stderr] 152 | fn show_file(file: Option<&String>) -> String {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/engine/vm.rs:1836:17
[INFO] [stderr]      |
[INFO] [stderr] 1836 |                 self.call_method(&new_obj, "new", &args);
[INFO] [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/engine/vm.rs:1857:17
[INFO] [stderr]      |
[INFO] [stderr] 1857 |                 self.call_method(&new_obj, "new", &args);
[INFO] [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 28 warnings emitted
[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: unreachable pattern
[INFO] [stderr]    --> src/engine/vm.rs:546:17
[INFO] [stderr]     |
[INFO] [stderr] 546 |                 (_, 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: 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] 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:1590:35
[INFO] [stderr]      |
[INFO] [stderr] 1590 |     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:1656:21
[INFO] [stderr]      |
[INFO] [stderr] 1656 |                     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:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |         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:40:13
[INFO] [stderr]    |
[INFO] [stderr] 40 |         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: `identifier`
[INFO] [stderr]    --> src/parser/ast.rs:992:21
[INFO] [stderr]     |
[INFO] [stderr] 992 |                 let identifier = self.parse_identifier()?;
[INFO] [stderr]     |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_identifier`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]     --> src/parser/ast.rs:1500:21
[INFO] [stderr]      |
[INFO] [stderr] 1500 |             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:1504:31
[INFO] [stderr]      |
[INFO] [stderr] 1504 |             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:1506:21
[INFO] [stderr]      |
[INFO] [stderr] 1506 |                 for statement in statements {}
[INFO] [stderr]      |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_statement`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/engine/vm.rs:1591:13
[INFO] [stderr]      |
[INFO] [stderr] 1591 |         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: variable does not need to be mutable
[INFO] [stderr]     --> src/parser/ast.rs:1385:9
[INFO] [stderr]      |
[INFO] [stderr] 1385 |     let mut others = Vec::new();
[INFO] [stderr]      |         ----^^^^^^
[INFO] [stderr]      |         |
[INFO] [stderr]      |         help: remove this `mut`
[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: 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: `capture_environment`
[INFO] [stderr]     --> src/engine/vm.rs:1590:8
[INFO] [stderr]      |
[INFO] [stderr] 1590 |     fn capture_environment(&self, expr: &Expression) -> Frame {
[INFO] [stderr]      |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `WeakPtr`
[INFO] [stderr]     --> src/engine/vm.rs:1882:1
[INFO] [stderr]      |
[INFO] [stderr] 1882 | type WeakPtr<T> = Weak<RefCell<T>>;
[INFO] [stderr]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse_interface_alias_statement`
[INFO] [stderr]     --> src/parser/ast.rs:1298:8
[INFO] [stderr]      |
[INFO] [stderr] 1298 |     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:152:4
[INFO] [stderr]     |
[INFO] [stderr] 152 | fn show_file(file: Option<&String>) -> String {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/engine/vm.rs:1836:17
[INFO] [stderr]      |
[INFO] [stderr] 1836 |                 self.call_method(&new_obj, "new", &args);
[INFO] [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/engine/vm.rs:1857:17
[INFO] [stderr]      |
[INFO] [stderr] 1857 |                 self.call_method(&new_obj, "new", &args);
[INFO] [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 28 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rscript-65e3dbde709750c8
[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] [stderr]      Running /opt/rustwide/target/debug/deps/rscript-697184ca4999454a
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rscript
[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" "2a7f0d1703c28c39219a381c4b0341954bb772fae3e1a77088a7b0bd3989d787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a7f0d1703c28c39219a381c4b0341954bb772fae3e1a77088a7b0bd3989d787", kill_on_drop: false }`
[INFO] [stdout] 2a7f0d1703c28c39219a381c4b0341954bb772fae3e1a77088a7b0bd3989d787