Panic information can be improved

[SichangHe]

I just got a panic because the disk was full, the file writer thread exited with error, and the file content sender hit an expect I wrote (code). Though, this is not the point.

The point is, the panic information could probably be better.
It seems that the printout from different threads were mixed, which is probably the biggest problem.
The message is long, probably because the default behavior is to keep running the other tasks while one of them fails (which is fine).
thread <unnamed> is not very helpful…

I can deal with this, but someone newer to Rust might be blown off.

Anyway, just a suggestion.

named>thread 'thread 'thread 'thread 'thread '<unnamed>thread 'thread '' panicked at <unnamed>thread 'thread '<unnamed>thread 'thread 'thread 'rib_stats/src/main.rsthr
ead 'thread 'thread 'thread 'thread 'thread ':thread '<unnamed><unnamed>thread 'thread 'thread '<unnamed><unnamed><unnamed>' panicked at thread '<unnamed>' panicked at
 <unnamed><unnamed>' panicked at thread 'thread 'thread '<unnamed><unnamed>' panicked at thread 'thread 'thread '<unnamed>thread '<unnamed>thread 'thread '<unnamed>thr
ead '<unnamed>thread 'thread 'thread '' panicked at thread '<unnamed><unnamed>' panicked at ' panicked at <unnamed><unnamed>thread 'thread '' panicked at <unnamed>thre
ad '<unnamed>thread '' panicked at thread '<unnamed><unnamed><unnamed>thread '<unnamed><unnamed><unnamed><unnamed><unnamed>thread '<unnamed>' panicked at thread 'threa
d '' panicked at <unnamed>' panicked at <unnamed>' panicked at ' panicked at ' panicked at rib_stats/src/main.rsthread '<unnamed>rib_stats/src/main.rs' panicked at 190
rib_stats/src/main.rs<unnamed>thread '' panicked at <unnamed><unnamed>rib_stats/src/main.rs<unnamed>' panicked at thread '' panicked at <unnamed><unnamed>' panicked at
 <unnamed>' panicked at <unnamed><unnamed>' panicked at ' panicked at <unnamed>thread '<unnamed><unnamed>rib_stats/src/main.rs<unnamed>rib_stats/src/main.rs' panicked 
at rib_stats/src/main.rs' panicked at thread '' panicked at ' panicked at <unnamed><unnamed>rib_stats/src/main.rs<unnamed>' panicked at <unnamed>rib_stats/src/main.rs'
 panicked at <unnamed>' panicked at ' panicked at <unnamed>' panicked at ' panicked at ' panicked at ' panicked at ' panicked at <unnamed>' panicked at rib_stats/src/m
ain.rs<unnamed>rib_stats/src/main.rs' panicked at rib_stats/src/main.rs' panicked at rib_stats/src/main.rs::<unnamed>' panicked at rib_stats/src/main.rs' panicked at :
rib_stats/src/main.rs:' panicked at :<unnamed>' panicked at :rib_stats/src/main.rs<unnamed>rib_stats/src/main.rs' panicked at rib_stats/src/main.rs' panicked at rib_st
ats/src/main.rsrib_stats/src/main.rs' panicked at ' panicked at rib_stats/src/main.rsrib_stats/src/main.rs' panicked at thread 'rib_stats/src/main.rsthread '<unnamed>'
 panicked at ' panicked at :' panicked at :rib_stats/src/main.rs:rib_stats/src/main.rs<unnamed>rib_stats/src/main.rs' panicked at ' panicked at :thread '' panicked at 
rib_stats/src/main.rs' panicked at :rib_stats/src/main.rs' panicked at rib_stats/src/main.rsrib_stats/src/main.rs' panicked at rib_stats/src/main.rsrib_stats/src/main.
rsrib_stats/src/main.rsrib_stats/src/main.rsthread 'rib_stats/src/main.rs' panicked at rib_stats/src/main.rs:rib_stats/src/main.rsthread 'rib_stats/src/main.rs:190' pa
nicked at 190rib_stats/src/main.rs:thread 'rib_stats/src/main.rs:19018rib_stats/src/main.rs190' panicked at rib_stats/src/main.rsthread '190::<unnamed>rib_stats/src/ma
in.rs' panicked at :rib_stats/src/main.rs::rib_stats/src/main.rsrib_stats/src/main.rsthread '::rib_stats/src/main.rs<unnamed>thread ':<unnamed>190' panicked at rib_sta
ts/src/main.rsrib_stats/src/main.rs190rib_stats/src/main.rs190' panicked at :190:' panicked at :rib_stats/src/main.rsrib_stats/src/main.rsrib_stats/src/main.rs190<unna
med>rib_stats/src/main.rs:thread 'rib_stats/src/main.rs190thread 'thread 'thread ':rib_stats/src/main.rs::rib_stats/src/main.rs::::<unnamed>:rib_stats/src/main.rs:190:
<unnamed>::thread '190:rib_stats/src/main.rs:190<unnamed>:thread '' panicked at thread '190:::
::rib_stats/src/main.rs:<unnamed>:190190' panicked at :rib_stats/src/main.rs:190190190::thread ':<unnamed>190190:' panicked at <unnamed>:' panicked at ::::::18rib_stat
s/src/main.rs190rib_stats/src/main.rs190<unnamed>thread '190:thread '::' panicked at thread '190::<unnamed>::<unnamed>' panicked at <unnamed>190:<unnamed>1901901901901
90:' panicked at 190190190::' panicked at thread '190190<unnamed>:18thread '18:' panicked at 190190<unnamed>thread 'rib_stats/src/main.rsthread '<unnamed>:18:`route_fi
rst_hop_stats_sender` should not have been closed.: SendError { .. }19019018::
190' panicked at 18:190:18:190rib_stats/src/main.rs::rib_stats/src/main.rs18190<unnamed>rib_stats/src/main.rs190' panicked at :190:' panicked at 18rib_stats/src/main.r
srib_stats/src/main.rsrib_stats/src/main.rs1818190190190:
18:::::190:190<unnamed>' panicked at 190190rib_stats/src/main.rs<unnamed>:18' panicked at 181' panicked at 18rib_stats/src/main.rs' panicked at :' panicked at ::18:::
:181181rib_stats/src/main.rsthread ':::181rib_stats/src/main.rs<unnamed>::' panicked at 18:
<unnamed>:
181rib_stats/src/main.rs:181' panicked at :<unnamed>:<unnamed>' panicked at 18:
18
:::
181`route_first_hop_stats_sender` should not have been closed.: SendError { .. }::181rib_stats/src/main.rs:
18:::18:
18:
:
:::' panicked at ::1818:::::::`route_first_hop_stats_sender` should not have been closed.: SendError { .. }:
18:18' panicked at rib_stats/src/main.rs::18:
181rib_stats/src/main.rs:rib_stats/src/main.rsthread ':
:rib_stats/src/main.rs18rib_stats/src/main.rs1818`route_first_hop_stats_sender` should not have been closed.: SendError { .. }18:
`route_first_hop_stats_sender` should not have been closed.: SendError { .. }18:::<unnamed>181818thread '::' panicked at 1818rib_stats/src/main.rs:
`route_first_hop_stats_sender` should not have been closed.: SendError { .. }' panicked at `route_first_hop_stats_sender` should not have been closed.: SendError { .. 
}::18:rib_stats/src/main.rs18' panicked at 181' panicked at rib_stats/src/main.rs181:
:
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
18:
18
`route_first_hop_stats_sender` should not have been closed.: SendError { .. }1818:::
1818`route_first_hop_stats_sender` should not have been closed.: SendError { .. }18118:
`route_first_hop_stats_sender` should not have been closed.: SendError { .. }:
`route_first_hop_stats_sender` should not have been closed.: SendError { .. }`route_first_hop_stats_sender` should not have been closed.: SendError { .. }1818118181rib
_stats/src/main.rs1818:
:
18181181811818
181thread ':
18:
:`route_first_hop_stats_sender` should not have been closed.: SendError { .. }:
`route_first_hop_stats_sender` should not have been closed.: SendError { .. }::1818:<unnamed>`route_first_hop_stats_sender` should not have been closed.: SendError { .
. }:
181:`route_first_hop_stats_sender` should not have been closed.: SendError { .. }:
::

:
`route_first_hop_stats_sender` should not have been closed.: SendError { .. }
:
1818181' panicked at ::
:
:
<unnamed>18181thread 'rib_stats/src/main.rs:
:
:`route_first_hop_stats_sender` should not have been closed.: SendError { .. }
rib_stats/src/main.rs
18181:
18::
rib_stats/src/main.rs:rib_stats/src/main.rsthread 'thread '`route_first_hop_stats_sender` should not have been closed.: SendError { .. }:`route_first_hop_stats_sender`
 should not have been closed.: SendError { .. }:
:
`route_first_hop_stats_sender` should not have been closed.: SendError { .. }
:
:
181`route_first_hop_stats_sender` should not have been closed.: SendError { .. }:
:
thread ':

`route_first_hop_stats_sender` should not have been closed.: SendError { .. }

`route_first_hop_stats_sender` should not have been closed.: SendError { .. }
:
::
:::`route_first_hop_stats_sender` should not have been closed.: SendError { .. }:
`route_first_hop_stats_sender` should not have been closed.: SendError { .. }:
18
:rib_stats/src/main.rs:
::
:
thread '`route_first_hop_stats_sender` should not have been closed.: SendError { .. }<unnamed>
:
`route_first_hop_stats_sender` should not have been closed.: SendError { .. }181:`route_first_hop_stats_sender` should not have been closed.: SendError { .. }18
:
:181181:
' panicked at :
:181
`route_first_hop_stats_sender` should not have been closed.: SendError { .. }181`route_first_hop_stats_sender` should not have been closed.: SendError { .. }:`route_fi
rst_hop_stats_sender` should not have been closed.: SendError { .. }
`route_first_hop_stats_sender` should not have been closed.: SendError { .. }
:
:
rib_stats/src/main.rs18`route_first_hop_stats_sender` should not have been closed.: SendError { .. }`route_first_hop_stats_sender` should not have been closed.: SendEr
ror { .. }`route_first_hop_stats_sender` should not have been closed.: SendError { .. }' panicked at :
:<unnamed>:`route_first_hop_stats_sender` should not have been closed.: SendError { .. }`route_first_hop_stats_sender` should not have been closed.: SendError { .. }18
1thread '
::
:`route_stats_sender` should not have been closed.: SendError { .. }`route_first_hop_stats_sender` should not have been closed.: SendError { .. }:
181`route_first_hop_stats_sender` should not have been closed.: SendError { .. }:18:<unnamed><unnamed>
18
`route_first_hop_stats_sender` should not have been closed.: SendError { .. }`route_first_hop_stats_sender` should not have been closed.: SendError { .. }
`route_first_hop_stats_sender` should not have been closed.: SendError { .. }`route_stats_sender` should not have been closed.: SendError { .. }rib_stats/src/main.rs:t
hread '
`route_stats_sender` should not have been closed.: SendError { .. }`route_first_hop_stats_sender` should not have been closed.: SendError { .. }<unnamed>`route_first_h
op_stats_sender` should not have been closed.: SendError { .. }


`route_first_hop_stats_sender` should not have been closed.: SendError { .. }18`route_first_hop_stats_sender` should not have been closed.: SendError { .. }18181

`route_first_hop_stats_sender` should not have been closed.: SendError { .. }181`route_first_hop_stats_sender` should not have been closed.: SendError { .. }:
18:`route_first_hop_stats_sender` should not have been closed.: SendError { .. }18`route_first_hop_stats_sender` should not have been closed.: SendError { .. }`route_f
irst_hop_stats_sender` should not have been closed.: SendError { .. }
<unnamed>18' panicked at `route_first_hop_stats_sender` should not have been closed.: SendError { .. }
:18
`route_stats_sender` should not have been closed.: SendError { .. }::`route_first_hop_stats_sender` should not have been closed.: SendError { .. }rib_stats/src/main.rs
`route_stats_sender` should not have been closed.: SendError { .. }
18::


18
`route_stats_sender` should not have been closed.: SendError { .. }`route_stats_sender` should not have been closed.: SendError { .. }::



thread '`route_stats_sender` should not have been closed.: SendError { .. }18' panicked at 181

:<unnamed>181' panicked at 18

`route_stats_sender` should not have been closed.: SendError { .. }:
181:
181' panicked at ' panicked at :
rib_stats/src/main.rs



:18<unnamed>

' panicked at 

:
:
::

`route_first_hop_stats_sender` should not have been closed.: SendError { .. }:
181
:


' panicked at :
rib_stats/src/main.rs
18:

1818:
18`route_stats_sender` should not have been closed.: SendError { .. }:


181`route_stats_sender` should not have been closed.: SendError { .. }<unnamed>
:
181rib_stats/src/main.rs:18:rib_stats/src/main.rs:

18:`route_stats_sender` should not have been closed.: SendError { .. }18:rib_stats/src/main.rs`route_stats_sender` should not have been closed.: SendError { .. }::
' panicked at rib_stats/src/main.rs`route_stats_sender` should not have been closed.: SendError { .. }`route_stats_sender` should not have been closed.: SendError { ..
 }1818
:
`route_stats_sender` should not have been closed.: SendError { .. }:`route_stats_sender` should not have been closed.: SendError { .. }18rib_stats/src/main.rs`route_st
ats_sender` should not have been closed.: SendError { .. }::
`route_stats_sender` should not have been closed.: SendError { .. }:
:
181:

`route_stats_sender` should not have been closed.: SendError { .. }:
' panicked at `route_stats_sender` should not have been closed.: SendError { .. }::18:
18:`route_stats_sender` should not have been closed.: SendError { .. }:

:
18:
181`route_stats_sender` should not have been closed.: SendError { .. }rib_stats/src/main.rs:

:
`route_stats_sender` should not have been closed.: SendError { .. }

:
:
181`route_stats_sender` should not have been closed.: SendError { .. }
`route_stats_sender` should not have been closed.: SendError { .. }`route_stats_sender` should not have been closed.: SendError { .. }:`route_stats_sender` should not 
have been closed.: SendError { .. }
18rib_stats/src/main.rs
18181:
`route_stats_sender` should not have been closed.: SendError { .. }:
181
`route_stats_sender` should not have been closed.: SendError { .. }`route_stats_sender` should not have been closed.: SendError { .. }:
181:
18:181`route_stats_sender` should not have been closed.: SendError { .. }
`route_stats_sender` should not have been closed.: SendError { .. }181:


18
:
::
:`route_stats_sender` should not have been closed.: SendError { .. }
`route_stats_sender` should not have been closed.: SendError { .. }:


`route_stats_sender` should not have been closed.: SendError { .. }thread '::
181:

:18:
`route_stats_sender` should not have been closed.: SendError { .. }181`route_stats_sender` should not have been closed.: SendError { .. }18
18
<unnamed>18`route_stats_sender` should not have been closed.: SendError { .. }:181818:
`route_stats_sender` should not have been closed.: SendError { .. }
:
:
:
`route_stats_sender` should not have been closed.: SendError { .. }' panicked at :

:
:
:
`route_stats_sender` should not have been closed.: SendError { .. }
18`route_stats_sender` should not have been closed.: SendError { .. }
rib_stats/src/main.rs`route_stats_sender` should not have been closed.: SendError { .. }`route_stats_sender` should not have been closed.: SendError { .. }`route_stats
_sender` should not have been closed.: SendError { .. }
`route_stats_sender` should not have been closed.: SendError { .. }
thread ':

:


thread '<unnamed><unnamed>`route_stats_sender` should not have been closed.: SendError { .. }181' panicked at ' panicked at 
:rib_stats/src/main.rsrib_stats/src/main.rs18:::
181181`route_stats_sender` should not have been closed.: SendError { .. }::
1818:
:
`route_stats_sender` should not have been closed.: SendError { .. }`route_stats_sender` should not have been closed.: SendError { .. }

thread '<unnamed>' panicked at rib_stats/src/main.rs:181:18:
`route_stats_sender` should not have been closed.: SendError { .. }
thread '<unnamed>' panicked at rib_stats/src/main.rs:181:18:
`route_stats_sender` should not have been closed.: SendError { .. }
thread '<unnamed>' panicked at rib_stats/src/main.rs:181:18:
`route_stats_sender` should not have been closed.: SendError { .. }
thread '<unnamed>' panicked at rib_stats/src/main.rs:181:18:
`route_stats_sender` should not have been closed.: SendError { .. }
thread '<unnamed>' panicked at rib_stats/src/main.rs:181:18:
`route_stats_sender` should not have been closed.: SendError { .. }
thread 'thread '<unnamed><unnamed>' panicked at ' panicked at rib_stats/src/main.rsrib_stats/src/main.rs::181181::1818:
:
`route_stats_sender` should not have been closed.: SendError { .. }`route_stats_sender` should not have been closed.: SendError { .. }

thread '<unnamed>' panicked at rib_stats/src/main.rs:181:18:
`route_stats_sender` should not have been closed.: SendError { .. }
thread '<unnamed>' panicked at rib_stats/src/main.rs:181:18:
`route_stats_sender` should not have been closed.: SendError { .. }
thread '<unnamed>' panicked at rib_stats/src/main.rs:181:18:
`route_stats_sender` should not have been closed.: SendError { .. }
thread 'thread '<unnamed><unnamed>' panicked at ' panicked at rib_stats/src/main.rsrib_stats/src/main.rs::181181::1818:
:
`route_stats_sender` should not have been closed.: SendError { .. }`route_stats_sender` should not have been closed.: SendError { .. }

thread '<unnamed>' panicked at rib_stats/src/main.rs:181:18:
`route_stats_sender` should not have been closed.: SendError { .. }
thread 'thread '<unnamed><unnamed>' panicked at ' panicked at rib_stats/src/main.rsrib_stats/src/main.rs::181181::1818:
:
`route_stats_sender` should not have been closed.: SendError { .. }`route_stats_sender` should not have been closed.: SendError { .. }

thread '<unnamed>' panicked at rib_stats/src/main.rs:181:18:
`route_stats_sender` should not have been closed.: SendError { .. }
thread '<unnamed>' panicked at rib_stats/src/main.rs:181:18:
`route_stats_sender` should not have been closed.: SendError { .. }
thread '<unnamed>' panicked at rib_stats/src/main.rs:181:18:
`route_stats_sender` should not have been closed.: SendError { .. }
thread '<unnamed>' panicked at rib_stats/src/main.rs:181:18:
`route_stats_sender` should not have been closed.: SendError { .. }
thread '<unnamed>' panicked at rib_stats/src/main.rs:181:18:
`route_stats_sender` should not have been closed.: SendError { .. }
thread '<unnamed>' panicked at rib_stats/src/main.rs:181:18:
`route_stats_sender` should not have been closed.: SendError { .. }
thread '<unnamed>' panicked at rib_stats/src/main.rs:181:18:
`route_stats_sender` should not have been closed.: SendError { .. }
thread '<unnamed>' panicked at rib_stats/src/main.rs:118:18:
`line_receiver` should stay open.: SendError { .. }

[cuviper]

This panic information does not come from rayon, but the standard library's default panic handler. You can use std::panic::set_hook to customize that.

You might also like rayon's panic_fuse to more aggressively stop a parallel iterator after any panic.