From @masak

<masak> rakudo​: "foo" ~~ /(foo)/; say "$0a"
<p6eval> rakudo 4c94d7​: OUTPUT«Method 'ast' not found for invocant of
class 'Undef'␤[...]
* masak submits LTA rakudobug
<masak> rakudo​: "foo" ~~ /(foo)/; say $0a
<p6eval> rakudo 4c94d7​: OUTPUT«Confused at line 11, near "say $0a"␤ [...]
<masak> alpha​: "foo" ~~ /(foo)/; say "$0a"
<p6eval> alpha 30e0ed​: OUTPUT«fooa␤»
<masak> jnthn​: dredged up by November. the app cheese strikes again! :)

From @diakopter

On Fri Apr 09 07​:27​:32 2010, masak wrote​:

<masak> rakudo​: "foo" ~~ /(foo)/; say "$0a"
<p6eval> rakudo 4c94d7​: OUTPUT«Method 'ast' not found for invocant of
class 'Undef'␤[...]
* masak submits LTA rakudobug
<masak> rakudo​: "foo" ~~ /(foo)/; say $0a
<p6eval> rakudo 4c94d7​: OUTPUT«Confused at line 11, near "say $0a"␤
[...]
<masak> alpha​: "foo" ~~ /(foo)/; say "$0a"
<p6eval> alpha 30e0ed​: OUTPUT«fooa␤»
<masak> jnthn​: dredged up by November. the app cheese strikes again!
:)

now fixed. marking testneeded.

15​:36 <diakopter> rakudo​: "foo" ~~ /(foo)/; say "$0a"
15​:36 <p6eval> rakudo 3b1596​: OUTPUT«fooa␤»

The RT System itself - Status changed from 'new' to 'open'

From @bbkr

Tests in​:

Raku/roast@606e73751f

masak​: Ticket has "LTA error message" subject which suggests that you expect this code to fail.
I've checked and STD allows this syntax, so I wrote test that expects working interpolation, not
an error.
Please reopen if you think otherwise.

@bbkr - Status changed from 'open' to 'resolved'