[INFO] cloning repository https://github.com/pandemonium/sylt [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pandemonium/sylt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpandemonium%2Fsylt", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpandemonium%2Fsylt'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 90d39897c2bb9811c62735c630874a56876af318 [INFO] checking pandemonium/sylt against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpandemonium%2Fsylt" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/pandemonium/sylt on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/pandemonium/sylt [INFO] finished tweaking git repo https://github.com/pandemonium/sylt [INFO] tweaked toml for git repo https://github.com/pandemonium/sylt written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/pandemonium/sylt already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] dc9298b97c11296780471a74ea6c97c4891f44893e4df43f0b9e01ab120f1311 [INFO] running `Command { std: "docker" "start" "-a" "dc9298b97c11296780471a74ea6c97c4891f44893e4df43f0b9e01ab120f1311", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "dc9298b97c11296780471a74ea6c97c4891f44893e4df43f0b9e01ab120f1311", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc9298b97c11296780471a74ea6c97c4891f44893e4df43f0b9e01ab120f1311", kill_on_drop: false }` [INFO] [stdout] dc9298b97c11296780471a74ea6c97c4891f44893e4df43f0b9e01ab120f1311 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 23399ad3e53b7411d730dd6469cc8910ac223f1cb84e9e975c22b5793fab9c0a [INFO] running `Command { std: "docker" "start" "-a" "23399ad3e53b7411d730dd6469cc8910ac223f1cb84e9e975c22b5793fab9c0a", kill_on_drop: false }` [INFO] [stderr] Checking sylt v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `element` [INFO] [stdout] --> src/runtime/ast/interpreter.rs:170:66 [INFO] [stdout] | [INFO] [stdout] 170 | ast::Expression::PutArrayElement { array, subscript, element } => { [INFO] [stdout] | ^^^^^^^ help: try ignoring the field: `element: _` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `array` [INFO] [stdout] --> src/runtime/ast/interpreter.rs:277:21 [INFO] [stdout] | [INFO] [stdout] 277 | array, [INFO] [stdout] | ^^^^^ help: try ignoring the field: `array: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `subscript` [INFO] [stdout] --> src/runtime/ast/interpreter.rs:278:21 [INFO] [stdout] | [INFO] [stdout] 278 | subscript, [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `subscript: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rhs` [INFO] [stdout] --> src/runtime/ast/interpreter.rs:279:21 [INFO] [stdout] | [INFO] [stdout] 279 | rhs, [INFO] [stdout] | ^^^ help: try ignoring the field: `rhs: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `array` [INFO] [stdout] --> src/runtime/bytecode/compiler.rs:156:43 [INFO] [stdout] | [INFO] [stdout] 156 | ast::Statement::ArrayUpdate { array, subscript, rhs } => { [INFO] [stdout] | ^^^^^ help: try ignoring the field: `array: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `subscript` [INFO] [stdout] --> src/runtime/bytecode/compiler.rs:156:50 [INFO] [stdout] | [INFO] [stdout] 156 | ast::Statement::ArrayUpdate { array, subscript, rhs } => { [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `subscript: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rhs` [INFO] [stdout] --> src/runtime/bytecode/compiler.rs:156:61 [INFO] [stdout] | [INFO] [stdout] 156 | ast::Statement::ArrayUpdate { array, subscript, rhs } => { [INFO] [stdout] | ^^^ help: try ignoring the field: `rhs: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `element` [INFO] [stdout] --> src/runtime/ast/interpreter.rs:170:66 [INFO] [stdout] | [INFO] [stdout] 170 | ast::Expression::PutArrayElement { array, subscript, element } => { [INFO] [stdout] | ^^^^^^^ help: try ignoring the field: `element: _` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `array` [INFO] [stdout] --> src/runtime/ast/interpreter.rs:277:21 [INFO] [stdout] | [INFO] [stdout] 277 | array, [INFO] [stdout] | ^^^^^ help: try ignoring the field: `array: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `subscript` [INFO] [stdout] --> src/runtime/ast/interpreter.rs:278:21 [INFO] [stdout] | [INFO] [stdout] 278 | subscript, [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `subscript: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rhs` [INFO] [stdout] --> src/runtime/ast/interpreter.rs:279:21 [INFO] [stdout] | [INFO] [stdout] 279 | rhs, [INFO] [stdout] | ^^^ help: try ignoring the field: `rhs: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `types_unify` and `put_array_element` are never used [INFO] [stdout] --> src/runtime/ast/interpreter.rs:87:8 [INFO] [stdout] | [INFO] [stdout] 51 | impl<'a> ActivationFrame<'a> { [INFO] [stdout] | ---------------------------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 87 | fn types_unify(lhs: &ast::Type, rhs: &ast::Type) -> bool { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 223 | fn put_array_element( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `array_get_element` is never used [INFO] [stdout] --> src/syntax.rs:230:4 [INFO] [stdout] | [INFO] [stdout] 230 | fn array_get_element() -> impl Parser { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `array` [INFO] [stdout] --> src/runtime/bytecode/compiler.rs:156:43 [INFO] [stdout] | [INFO] [stdout] 156 | ast::Statement::ArrayUpdate { array, subscript, rhs } => { [INFO] [stdout] | ^^^^^ help: try ignoring the field: `array: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `subscript` [INFO] [stdout] --> src/runtime/bytecode/compiler.rs:156:50 [INFO] [stdout] | [INFO] [stdout] 156 | ast::Statement::ArrayUpdate { array, subscript, rhs } => { [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `subscript: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rhs` [INFO] [stdout] --> src/runtime/bytecode/compiler.rs:156:61 [INFO] [stdout] | [INFO] [stdout] 156 | ast::Statement::ArrayUpdate { array, subscript, rhs } => { [INFO] [stdout] | ^^^ help: try ignoring the field: `rhs: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `self` and `vm` [INFO] [stdout] --> src/main.rs:5:20 [INFO] [stdout] | [INFO] [stdout] 5 | bytecode::{self, vm}, [INFO] [stdout] | ^^^^ ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `self` and `vm` [INFO] [stdout] --> src/main.rs:5:20 [INFO] [stdout] | [INFO] [stdout] 5 | bytecode::{self, vm}, [INFO] [stdout] | ^^^^ ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `source` [INFO] [stdout] --> src/main.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let source = r#" [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `source` [INFO] [stdout] --> src/main.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let source = r#" [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `types_unify` and `put_array_element` are never used [INFO] [stdout] --> src/runtime/ast/interpreter.rs:87:8 [INFO] [stdout] | [INFO] [stdout] 51 | impl<'a> ActivationFrame<'a> { [INFO] [stdout] | ---------------------------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 87 | fn types_unify(lhs: &ast::Type, rhs: &ast::Type) -> bool { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 223 | fn put_array_element( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `array_get_element` is never used [INFO] [stdout] --> src/syntax.rs:230:4 [INFO] [stdout] | [INFO] [stdout] 230 | fn array_get_element() -> impl Parser { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Scalar`, `Compound`, and `Null` are never constructed [INFO] [stdout] --> examples/json.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | enum Value { [INFO] [stdout] | ----- variants in this enum [INFO] [stdout] 5 | Scalar(ScalarValue), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 6 | Compound(CompoundValue), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 7 | Null, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Value` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `parse` is never used [INFO] [stdout] --> examples/json.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 10 | impl Value { [INFO] [stdout] | ---------- associated function in this implementation [INFO] [stdout] 11 | pub fn parse(json_text: &str) -> Option { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Number`, `Text`, and `Boolean` are never constructed [INFO] [stdout] --> examples/json.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 19 | enum ScalarValue { [INFO] [stdout] | ----------- variants in this enum [INFO] [stdout] 20 | Number(f64), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 21 | Text(String), [INFO] [stdout] | ^^^^ [INFO] [stdout] 22 | Boolean(bool), [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ScalarValue` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Array` and `Object` are never constructed [INFO] [stdout] --> examples/json.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 26 | enum CompoundValue { [INFO] [stdout] | ------------- variants in this enum [INFO] [stdout] 27 | Array(Vec), [INFO] [stdout] | ^^^^^ [INFO] [stdout] 28 | Object(Vec<(String, Value)>), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `CompoundValue` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `ws` is never used [INFO] [stdout] --> examples/json.rs:31:4 [INFO] [stdout] | [INFO] [stdout] 31 | fn ws() -> impl Parser { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `null` is never used [INFO] [stdout] --> examples/json.rs:37:4 [INFO] [stdout] | [INFO] [stdout] 37 | fn null() -> impl Parser { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `digit` is never used [INFO] [stdout] --> examples/json.rs:41:4 [INFO] [stdout] | [INFO] [stdout] 41 | fn digit() -> impl Parser { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `number` is never used [INFO] [stdout] --> examples/json.rs:45:4 [INFO] [stdout] | [INFO] [stdout] 45 | fn number() -> impl Parser { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `text` is never used [INFO] [stdout] --> examples/json.rs:57:4 [INFO] [stdout] | [INFO] [stdout] 57 | fn text() -> impl Parser { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `boolean` is never used [INFO] [stdout] --> examples/json.rs:68:4 [INFO] [stdout] | [INFO] [stdout] 68 | fn boolean() -> impl Parser { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `scalar` is never used [INFO] [stdout] --> examples/json.rs:77:4 [INFO] [stdout] | [INFO] [stdout] 77 | fn scalar() -> impl Parser { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `array` is never used [INFO] [stdout] --> examples/json.rs:84:4 [INFO] [stdout] | [INFO] [stdout] 84 | fn array() -> impl Parser { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `object` is never used [INFO] [stdout] --> examples/json.rs:93:4 [INFO] [stdout] | [INFO] [stdout] 93 | fn object() -> impl Parser { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `compound` is never used [INFO] [stdout] --> examples/json.rs:106:4 [INFO] [stdout] | [INFO] [stdout] 106 | fn compound() -> impl Parser { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `value` is never used [INFO] [stdout] --> examples/json.rs:110:4 [INFO] [stdout] | [INFO] [stdout] 110 | fn value() -> ParsimoniousValue { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ParsimoniousValue` is never constructed [INFO] [stdout] --> examples/json.rs:115:8 [INFO] [stdout] | [INFO] [stdout] 115 | struct ParsimoniousValue; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.52s [INFO] running `Command { std: "docker" "inspect" "23399ad3e53b7411d730dd6469cc8910ac223f1cb84e9e975c22b5793fab9c0a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "23399ad3e53b7411d730dd6469cc8910ac223f1cb84e9e975c22b5793fab9c0a", kill_on_drop: false }` [INFO] [stdout] 23399ad3e53b7411d730dd6469cc8910ac223f1cb84e9e975c22b5793fab9c0a