build(deps): bump github.com/BurntSushi/toml in /src/runtime

Bumps [github.com/BurntSushi/toml](https://github.com/BurntSushi/toml) from 1.5.0 to 1.6.0.
- [Release notes](https://github.com/BurntSushi/toml/releases)
- [Commits](https://github.com/BurntSushi/toml/compare/v1.5.0...v1.6.0)

---
updated-dependencies:
- dependency-name: github.com/BurntSushi/toml
  dependency-version: 1.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

src/runtime/go.mod

@@ -8,7 +8,7 @@ go 1.24.13
 
 require (
 	code.cloudfoundry.org/bytefmt v0.0.0-20211005130812-5bb3c17173e5
-	github.com/BurntSushi/toml v1.5.0
+	github.com/BurntSushi/toml v1.6.0
 	github.com/blang/semver v3.5.1+incompatible
 	github.com/blang/semver/v4 v4.0.0
 	github.com/container-orchestrated-devices/container-device-interface v0.6.0

src/runtime/go.sum

@@ -8,8 +8,9 @@ github.com/AdaLogics/go-fuzz-headers v0.0.0-20230811130428-ced1acdcaa24/go.mod h
 github.com/AdamKorcz/go-118-fuzz-build v0.0.0-20230306123547-8075edf89bb0 h1:59MxjQVfjXsBpLy+dbd2/ELV5ofnUkUZBvWSC85sheA=
 github.com/AdamKorcz/go-118-fuzz-build v0.0.0-20230306123547-8075edf89bb0/go.mod h1:OahwfttHWG6eJ0clwcfBAHoDI6X/LV/15hx/wlMZSrU=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/BurntSushi/toml v1.5.0 h1:W5quZX/G/csjUnuI8SUYlsHs9M38FC7znL0lIO+DvMg=
 github.com/BurntSushi/toml v1.5.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
+github.com/BurntSushi/toml v1.6.0 h1:dRaEfpa2VI55EwlIW72hMRHdWouJeRF7TPYhI+AUQjk=
+github.com/BurntSushi/toml v1.6.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
 github.com/Masterminds/semver/v3 v3.4.0 h1:Zog+i5UMtVoCU8oKka5P7i9q9HgrJeGzI9SA1Xbatp0=
 github.com/Masterminds/semver/v3 v3.4.0/go.mod h1:4V+yj/TJE1HU9XfppCwVMZq3I84lprf4nC11bSS5beM=
 github.com/Microsoft/go-winio v0.6.2 h1:F2VQgta7ecxGYO8k3ZZz3RS8fVIXVxONVUPlNERoyfY=

src/runtime/vendor/github.com/BurntSushi/toml/README.md

@@ -1,7 +1,7 @@
 TOML stands for Tom's Obvious, Minimal Language. This Go package provides a
 reflection interface similar to Go's standard library `json` and `xml` packages.
 
-Compatible with TOML version [v1.0.0](https://toml.io/en/v1.0.0).
+Compatible with TOML version [v1.1.0](https://toml.io/en/v1.1.0).
 
 Documentation: https://pkg.go.dev/github.com/BurntSushi/toml
 

src/runtime/vendor/github.com/BurntSushi/toml/decode.go

@@ -206,6 +206,13 @@ func markDecodedRecursive(md *MetaData, tmap map[string]any) {
 			markDecodedRecursive(md, tmap)
 			md.context = md.context[0 : len(md.context)-1]
 		}
+		if tarr, ok := tmap[key].([]map[string]any); ok {
+			for _, elm := range tarr {
+				md.context = append(md.context, key)
+				markDecodedRecursive(md, elm)
+				md.context = md.context[0 : len(md.context)-1]
+			}
+		}
 	}
 }
 
@@ -423,7 +430,7 @@ func (md *MetaData) unifyString(data any, rv reflect.Value) error {
 		if i, ok := data.(int64); ok {
 			rv.SetString(strconv.FormatInt(i, 10))
 		} else if f, ok := data.(float64); ok {
-			rv.SetString(strconv.FormatFloat(f, 'f', -1, 64))
+			rv.SetString(strconv.FormatFloat(f, 'g', -1, 64))
 		} else {
 			return md.badtype("string", data)
 		}

src/runtime/vendor/github.com/BurntSushi/toml/encode.go

@@ -228,9 +228,9 @@ func (enc *Encoder) eElement(rv reflect.Value) {
 		}
 		switch v.Location() {
 		default:
-			enc.wf(v.Format(format))
+			enc.write(v.Format(format))
 		case internal.LocalDatetime, internal.LocalDate, internal.LocalTime:
-			enc.wf(v.In(time.UTC).Format(format))
+			enc.write(v.In(time.UTC).Format(format))
 		}
 		return
 	case Marshaler:
@@ -279,40 +279,40 @@ func (enc *Encoder) eElement(rv reflect.Value) {
 	case reflect.String:
 		enc.writeQuoted(rv.String())
 	case reflect.Bool:
-		enc.wf(strconv.FormatBool(rv.Bool()))
+		enc.write(strconv.FormatBool(rv.Bool()))
 	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		enc.wf(strconv.FormatInt(rv.Int(), 10))
+		enc.write(strconv.FormatInt(rv.Int(), 10))
 	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
-		enc.wf(strconv.FormatUint(rv.Uint(), 10))
+		enc.write(strconv.FormatUint(rv.Uint(), 10))
 	case reflect.Float32:
 		f := rv.Float()
 		if math.IsNaN(f) {
 			if math.Signbit(f) {
-				enc.wf("-")
+				enc.write("-")
 			}
-			enc.wf("nan")
+			enc.write("nan")
 		} else if math.IsInf(f, 0) {
 			if math.Signbit(f) {
-				enc.wf("-")
+				enc.write("-")
 			}
-			enc.wf("inf")
+			enc.write("inf")
 		} else {
-			enc.wf(floatAddDecimal(strconv.FormatFloat(f, 'f', -1, 32)))
+			enc.write(floatAddDecimal(strconv.FormatFloat(f, 'g', -1, 32)))
 		}
 	case reflect.Float64:
 		f := rv.Float()
 		if math.IsNaN(f) {
 			if math.Signbit(f) {
-				enc.wf("-")
+				enc.write("-")
 			}
-			enc.wf("nan")
+			enc.write("nan")
 		} else if math.IsInf(f, 0) {
 			if math.Signbit(f) {
-				enc.wf("-")
+				enc.write("-")
 			}
-			enc.wf("inf")
+			enc.write("inf")
 		} else {
-			enc.wf(floatAddDecimal(strconv.FormatFloat(f, 'f', -1, 64)))
+			enc.write(floatAddDecimal(strconv.FormatFloat(f, 'g', -1, 64)))
 		}
 	case reflect.Array, reflect.Slice:
 		enc.eArrayOrSliceElement(rv)
@@ -330,27 +330,32 @@ func (enc *Encoder) eElement(rv reflect.Value) {
 // By the TOML spec, all floats must have a decimal with at least one number on
 // either side.
 func floatAddDecimal(fstr string) string {
-	if !strings.Contains(fstr, ".") {
-		return fstr + ".0"
+	for _, c := range fstr {
+		if c == 'e' { // Exponent syntax
+			return fstr
+		}
+		if c == '.' {
+			return fstr
+		}
 	}
-	return fstr
+	return fstr + ".0"
 }
 
 func (enc *Encoder) writeQuoted(s string) {
-	enc.wf("\"%s\"", dblQuotedReplacer.Replace(s))
+	enc.write(`"` + dblQuotedReplacer.Replace(s) + `"`)
 }
 
 func (enc *Encoder) eArrayOrSliceElement(rv reflect.Value) {
 	length := rv.Len()
-	enc.wf("[")
+	enc.write("[")
 	for i := 0; i < length; i++ {
 		elem := eindirect(rv.Index(i))
 		enc.eElement(elem)
 		if i != length-1 {
-			enc.wf(", ")
+			enc.write(", ")
 		}
 	}
-	enc.wf("]")
+	enc.write("]")
 }
 
 func (enc *Encoder) eArrayOfTables(key Key, rv reflect.Value) {
@@ -363,7 +368,7 @@ func (enc *Encoder) eArrayOfTables(key Key, rv reflect.Value) {
 			continue
 		}
 		enc.newline()
-		enc.wf("%s[[%s]]", enc.indentStr(key), key)
+		enc.writef("%s[[%s]]", enc.indentStr(key), key)
 		enc.newline()
 		enc.eMapOrStruct(key, trv, false)
 	}
@@ -376,7 +381,7 @@ func (enc *Encoder) eTable(key Key, rv reflect.Value) {
 		enc.newline()
 	}
 	if len(key) > 0 {
-		enc.wf("%s[%s]", enc.indentStr(key), key)
+		enc.writef("%s[%s]", enc.indentStr(key), key)
 		enc.newline()
 	}
 	enc.eMapOrStruct(key, rv, false)
@@ -422,7 +427,7 @@ func (enc *Encoder) eMap(key Key, rv reflect.Value, inline bool) {
 			if inline {
 				enc.writeKeyValue(Key{mapKey.String()}, val, true)
 				if trailC || i != len(mapKeys)-1 {
-					enc.wf(", ")
+					enc.write(", ")
 				}
 			} else {
 				enc.encode(key.add(mapKey.String()), val)
@@ -431,12 +436,12 @@ func (enc *Encoder) eMap(key Key, rv reflect.Value, inline bool) {
 	}
 
 	if inline {
-		enc.wf("{")
+		enc.write("{")
 	}
 	writeMapKeys(mapKeysDirect, len(mapKeysSub) > 0)
 	writeMapKeys(mapKeysSub, false)
 	if inline {
-		enc.wf("}")
+		enc.write("}")
 	}
 }
 
@@ -534,7 +539,7 @@ func (enc *Encoder) eStruct(key Key, rv reflect.Value, inline bool) {
 			if inline {
 				enc.writeKeyValue(Key{keyName}, fieldVal, true)
 				if fieldIndex[0] != totalFields-1 {
-					enc.wf(", ")
+					enc.write(", ")
 				}
 			} else {
 				enc.encode(key.add(keyName), fieldVal)
@@ -543,14 +548,14 @@ func (enc *Encoder) eStruct(key Key, rv reflect.Value, inline bool) {
 	}
 
 	if inline {
-		enc.wf("{")
+		enc.write("{")
 	}
 
 	l := len(fieldsDirect) + len(fieldsSub)
 	writeFields(fieldsDirect, l)
 	writeFields(fieldsSub, l)
 	if inline {
-		enc.wf("}")
+		enc.write("}")
 	}
 }
 
@@ -700,7 +705,7 @@ func isEmpty(rv reflect.Value) bool {
 
 func (enc *Encoder) newline() {
 	if enc.hasWritten {
-		enc.wf("\n")
+		enc.write("\n")
 	}
 }
 
@@ -722,14 +727,22 @@ func (enc *Encoder) writeKeyValue(key Key, val reflect.Value, inline bool) {
 		enc.eElement(val)
 		return
 	}
-	enc.wf("%s%s = ", enc.indentStr(key), key.maybeQuoted(len(key)-1))
+	enc.writef("%s%s = ", enc.indentStr(key), key.maybeQuoted(len(key)-1))
 	enc.eElement(val)
 	if !inline {
 		enc.newline()
 	}
 }
 
-func (enc *Encoder) wf(format string, v ...any) {
+func (enc *Encoder) write(s string) {
+	_, err := enc.w.WriteString(s)
+	if err != nil {
+		encPanic(err)
+	}
+	enc.hasWritten = true
+}
+
+func (enc *Encoder) writef(format string, v ...any) {
 	_, err := fmt.Fprintf(enc.w, format, v...)
 	if err != nil {
 		encPanic(err)

src/runtime/vendor/github.com/BurntSushi/toml/lex.go

@@ -13,7 +13,6 @@ type itemType int
 
 const (
 	itemError itemType = iota
-	itemNIL            // used in the parser to indicate no type
 	itemEOF
 	itemText
 	itemString
@@ -47,14 +46,13 @@ func (p Position) String() string {
 }
 
 type lexer struct {
-	input    string
-	start    int
-	pos      int
-	line     int
-	state    stateFn
-	items    chan item
-	tomlNext bool
-	esc      bool
+	input string
+	start int
+	pos   int
+	line  int
+	state stateFn
+	items chan item
+	esc   bool
 
 	// Allow for backing up up to 4 runes. This is necessary because TOML
 	// contains 3-rune tokens (""" and ''').
@@ -90,14 +88,13 @@ func (lx *lexer) nextItem() item {
 	}
 }
 
-func lex(input string, tomlNext bool) *lexer {
+func lex(input string) *lexer {
 	lx := &lexer{
-		input:    input,
-		state:    lexTop,
-		items:    make(chan item, 10),
-		stack:    make([]stateFn, 0, 10),
-		line:     1,
-		tomlNext: tomlNext,
+		input: input,
+		state: lexTop,
+		items: make(chan item, 10),
+		stack: make([]stateFn, 0, 10),
+		line:  1,
 	}
 	return lx
 }
@@ -108,7 +105,7 @@ func (lx *lexer) push(state stateFn) {
 
 func (lx *lexer) pop() stateFn {
 	if len(lx.stack) == 0 {
-		return lx.errorf("BUG in lexer: no states to pop")
+		panic("BUG in lexer: no states to pop")
 	}
 	last := lx.stack[len(lx.stack)-1]
 	lx.stack = lx.stack[0 : len(lx.stack)-1]
@@ -305,6 +302,8 @@ func lexTop(lx *lexer) stateFn {
 		return lexTableStart
 	case eof:
 		if lx.pos > lx.start {
+			// TODO: never reached? I think this can only occur on a bug in the
+			// lexer(?)
 			return lx.errorf("unexpected EOF")
 		}
 		lx.emit(itemEOF)
@@ -392,8 +391,6 @@ func lexTableNameStart(lx *lexer) stateFn {
 func lexTableNameEnd(lx *lexer) stateFn {
 	lx.skip(isWhitespace)
 	switch r := lx.next(); {
-	case isWhitespace(r):
-		return lexTableNameEnd
 	case r == '.':
 		lx.ignore()
 		return lexTableNameStart
@@ -412,7 +409,7 @@ func lexTableNameEnd(lx *lexer) stateFn {
 // Lexes only one part, e.g. only 'a' inside 'a.b'.
 func lexBareName(lx *lexer) stateFn {
 	r := lx.next()
-	if isBareKeyChar(r, lx.tomlNext) {
+	if isBareKeyChar(r) {
 		return lexBareName
 	}
 	lx.backup()
@@ -420,23 +417,23 @@ func lexBareName(lx *lexer) stateFn {
 	return lx.pop()
 }
 
-// lexBareName lexes one part of a key or table.
-//
-// It assumes that at least one valid character for the table has already been
-// read.
+// lexQuotedName lexes one part of a quoted key or table name. It assumes that
+// it starts lexing at the quote itself (" or ').
 //
 // Lexes only one part, e.g. only '"a"' inside '"a".b'.
 func lexQuotedName(lx *lexer) stateFn {
 	r := lx.next()
 	switch {
-	case isWhitespace(r):
-		return lexSkip(lx, lexValue)
 	case r == '"':
 		lx.ignore() // ignore the '"'
 		return lexString
 	case r == '\'':
 		lx.ignore() // ignore the "'"
 		return lexRawString
+
+	// TODO: I don't think any of the below conditions can ever be reached?
+	case isWhitespace(r):
+		return lexSkip(lx, lexValue)
 	case r == eof:
 		return lx.errorf("unexpected EOF; expected value")
 	default:
@@ -464,17 +461,19 @@ func lexKeyStart(lx *lexer) stateFn {
 func lexKeyNameStart(lx *lexer) stateFn {
 	lx.skip(isWhitespace)
 	switch r := lx.peek(); {
-	case r == '=' || r == eof:
-		return lx.errorf("unexpected '='")
-	case r == '.':
-		return lx.errorf("unexpected '.'")
+	default:
+		lx.push(lexKeyEnd)
+		return lexBareName
 	case r == '"' || r == '\'':
 		lx.ignore()
 		lx.push(lexKeyEnd)
 		return lexQuotedName
-	default:
-		lx.push(lexKeyEnd)
-		return lexBareName
+
+	// TODO: I think these can never be reached?
+	case r == '=' || r == eof:
+		return lx.errorf("unexpected '='")
+	case r == '.':
+		return lx.errorf("unexpected '.'")
 	}
 }
 
@@ -485,7 +484,7 @@ func lexKeyEnd(lx *lexer) stateFn {
 	switch r := lx.next(); {
 	case isWhitespace(r):
 		return lexSkip(lx, lexKeyEnd)
-	case r == eof:
+	case r == eof: // TODO: never reached
 		return lx.errorf("unexpected EOF; expected key separator '='")
 	case r == '.':
 		lx.ignore()
@@ -628,10 +627,7 @@ func lexInlineTableValue(lx *lexer) stateFn {
 	case isWhitespace(r):
 		return lexSkip(lx, lexInlineTableValue)
 	case isNL(r):
-		if lx.tomlNext {
-			return lexSkip(lx, lexInlineTableValue)
-		}
-		return lx.errorPrevLine(errLexInlineTableNL{})
+		return lexSkip(lx, lexInlineTableValue)
 	case r == '#':
 		lx.push(lexInlineTableValue)
 		return lexCommentStart
@@ -653,10 +649,7 @@ func lexInlineTableValueEnd(lx *lexer) stateFn {
 	case isWhitespace(r):
 		return lexSkip(lx, lexInlineTableValueEnd)
 	case isNL(r):
-		if lx.tomlNext {
-			return lexSkip(lx, lexInlineTableValueEnd)
-		}
-		return lx.errorPrevLine(errLexInlineTableNL{})
+		return lexSkip(lx, lexInlineTableValueEnd)
 	case r == '#':
 		lx.push(lexInlineTableValueEnd)
 		return lexCommentStart
@@ -664,10 +657,7 @@ func lexInlineTableValueEnd(lx *lexer) stateFn {
 		lx.ignore()
 		lx.skip(isWhitespace)
 		if lx.peek() == '}' {
-			if lx.tomlNext {
-				return lexInlineTableValueEnd
-			}
-			return lx.errorf("trailing comma not allowed in inline tables")
+			return lexInlineTableValueEnd
 		}
 		return lexInlineTableValue
 	case r == '}':
@@ -855,9 +845,6 @@ func lexStringEscape(lx *lexer) stateFn {
 	r := lx.next()
 	switch r {
 	case 'e':
-		if !lx.tomlNext {
-			return lx.error(errLexEscape{r})
-		}
 		fallthrough
 	case 'b':
 		fallthrough
@@ -878,9 +865,6 @@ func lexStringEscape(lx *lexer) stateFn {
 	case '\\':
 		return lx.pop()
 	case 'x':
-		if !lx.tomlNext {
-			return lx.error(errLexEscape{r})
-		}
 		return lexHexEscape
 	case 'u':
 		return lexShortUnicodeEscape
@@ -928,19 +912,9 @@ func lexLongUnicodeEscape(lx *lexer) stateFn {
 // lexBaseNumberOrDate can differentiate base prefixed integers from other
 // types.
 func lexNumberOrDateStart(lx *lexer) stateFn {
-	r := lx.next()
-	switch r {
-	case '0':
+	if lx.next() == '0' {
 		return lexBaseNumberOrDate
 	}
-
-	if !isDigit(r) {
-		// The only way to reach this state is if the value starts
-		// with a digit, so specifically treat anything else as an
-		// error.
-		return lx.errorf("expected a digit but got %q", r)
-	}
-
 	return lexNumberOrDate
 }
 
@@ -1196,13 +1170,13 @@ func lexSkip(lx *lexer, nextState stateFn) stateFn {
 }
 
 func (s stateFn) String() string {
+	if s == nil {
+		return "<nil>"
+	}
 	name := runtime.FuncForPC(reflect.ValueOf(s).Pointer()).Name()
 	if i := strings.LastIndexByte(name, '.'); i > -1 {
 		name = name[i+1:]
 	}
-	if s == nil {
-		name = "<nil>"
-	}
 	return name + "()"
 }
 
@@ -1210,8 +1184,6 @@ func (itype itemType) String() string {
 	switch itype {
 	case itemError:
 		return "Error"
-	case itemNIL:
-		return "NIL"
 	case itemEOF:
 		return "EOF"
 	case itemText:
@@ -1226,18 +1198,22 @@ func (itype itemType) String() string {
 		return "Float"
 	case itemDatetime:
 		return "DateTime"
-	case itemTableStart:
-		return "TableStart"
-	case itemTableEnd:
-		return "TableEnd"
-	case itemKeyStart:
-		return "KeyStart"
-	case itemKeyEnd:
-		return "KeyEnd"
 	case itemArray:
 		return "Array"
 	case itemArrayEnd:
 		return "ArrayEnd"
+	case itemTableStart:
+		return "TableStart"
+	case itemTableEnd:
+		return "TableEnd"
+	case itemArrayTableStart:
+		return "ArrayTableStart"
+	case itemArrayTableEnd:
+		return "ArrayTableEnd"
+	case itemKeyStart:
+		return "KeyStart"
+	case itemKeyEnd:
+		return "KeyEnd"
 	case itemCommentStart:
 		return "CommentStart"
 	case itemInlineTableStart:
@@ -1266,7 +1242,7 @@ func isDigit(r rune) bool  { return r >= '0' && r <= '9' }
 func isBinary(r rune) bool { return r == '0' || r == '1' }
 func isOctal(r rune) bool  { return r >= '0' && r <= '7' }
 func isHex(r rune) bool    { return (r >= '0' && r <= '9') || (r|0x20 >= 'a' && r|0x20 <= 'f') }
-func isBareKeyChar(r rune, tomlNext bool) bool {
+func isBareKeyChar(r rune) bool {
 	return (r >= 'A' && r <= 'Z') || (r >= 'a' && r <= 'z') ||
 		(r >= '0' && r <= '9') || r == '_' || r == '-'
 }

src/runtime/vendor/github.com/BurntSushi/toml/parse.go

@@ -3,7 +3,6 @@ package toml
 import (
 	"fmt"
 	"math"
-	"os"
 	"strconv"
 	"strings"
 	"time"
@@ -17,7 +16,6 @@ type parser struct {
 	context    Key      // Full key for the current hash in scope.
 	currentKey string   // Base key name for everything except hashes.
 	pos        Position // Current position in the TOML file.
-	tomlNext   bool
 
 	ordered []Key // List of keys in the order that they appear in the TOML data.
 
@@ -32,8 +30,6 @@ type keyInfo struct {
 }
 
 func parse(data string) (p *parser, err error) {
-	_, tomlNext := os.LookupEnv("BURNTSUSHI_TOML_110")
-
 	defer func() {
 		if r := recover(); r != nil {
 			if pErr, ok := r.(ParseError); ok {
@@ -73,10 +69,9 @@ func parse(data string) (p *parser, err error) {
 	p = &parser{
 		keyInfo:   make(map[string]keyInfo),
 		mapping:   make(map[string]any),
-		lx:        lex(data, tomlNext),
+		lx:        lex(data),
 		ordered:   make([]Key, 0),
 		implicits: make(map[string]struct{}),
-		tomlNext:  tomlNext,
 	}
 	for {
 		item := p.next()
@@ -350,17 +345,14 @@ func (p *parser) valueFloat(it item) (any, tomlType) {
 var dtTypes = []struct {
 	fmt  string
 	zone *time.Location
-	next bool
 }{
-	{time.RFC3339Nano, time.Local, false},
-	{"2006-01-02T15:04:05.999999999", internal.LocalDatetime, false},
-	{"2006-01-02", internal.LocalDate, false},
-	{"15:04:05.999999999", internal.LocalTime, false},
-
-	// tomlNext
-	{"2006-01-02T15:04Z07:00", time.Local, true},
-	{"2006-01-02T15:04", internal.LocalDatetime, true},
-	{"15:04", internal.LocalTime, true},
+	{time.RFC3339Nano, time.Local},
+	{"2006-01-02T15:04:05.999999999", internal.LocalDatetime},
+	{"2006-01-02", internal.LocalDate},
+	{"15:04:05.999999999", internal.LocalTime},
+	{"2006-01-02T15:04Z07:00", time.Local},
+	{"2006-01-02T15:04", internal.LocalDatetime},
+	{"15:04", internal.LocalTime},
 }
 
 func (p *parser) valueDatetime(it item) (any, tomlType) {
@@ -371,9 +363,6 @@ func (p *parser) valueDatetime(it item) (any, tomlType) {
 		err error
 	)
 	for _, dt := range dtTypes {
-		if dt.next && !p.tomlNext {
-			continue
-		}
 		t, err = time.ParseInLocation(dt.fmt, it.val, dt.zone)
 		if err == nil {
 			if missingLeadingZero(it.val, dt.fmt) {
@@ -644,6 +633,11 @@ func (p *parser) setValue(key string, value any) {
 		// Note that since it has already been defined (as a hash), we don't
 		// want to overwrite it. So our business is done.
 		if p.isArray(keyContext) {
+			if !p.isImplicit(keyContext) {
+				if _, ok := hash[key]; ok {
+					p.panicf("Key '%s' has already been defined.", keyContext)
+				}
+			}
 			p.removeImplicit(keyContext)
 			hash[key] = value
 			return
@@ -802,10 +796,8 @@ func (p *parser) replaceEscapes(it item, str string) string {
 			b.WriteByte(0x0d)
 			skip = 1
 		case 'e':
-			if p.tomlNext {
-				b.WriteByte(0x1b)
-				skip = 1
-			}
+			b.WriteByte(0x1b)
+			skip = 1
 		case '"':
 			b.WriteByte(0x22)
 			skip = 1
@@ -815,11 +807,9 @@ func (p *parser) replaceEscapes(it item, str string) string {
 		// The lexer guarantees the correct number of characters are present;
 		// don't need to check here.
 		case 'x':
-			if p.tomlNext {
-				escaped := p.asciiEscapeToUnicode(it, str[i+2:i+4])
-				b.WriteRune(escaped)
-				skip = 3
-			}
+			escaped := p.asciiEscapeToUnicode(it, str[i+2:i+4])
+			b.WriteRune(escaped)
+			skip = 3
 		case 'u':
 			escaped := p.asciiEscapeToUnicode(it, str[i+2:i+6])
 			b.WriteRune(escaped)

src/runtime/vendor/modules.txt

@@ -13,7 +13,7 @@ github.com/AdaLogics/go-fuzz-headers
 # github.com/AdamKorcz/go-118-fuzz-build v0.0.0-20230306123547-8075edf89bb0
 ## explicit; go 1.18
 github.com/AdamKorcz/go-118-fuzz-build/testing
-# github.com/BurntSushi/toml v1.5.0
+# github.com/BurntSushi/toml v1.6.0
 ## explicit; go 1.18
 github.com/BurntSushi/toml
 github.com/BurntSushi/toml/internal