Panic with println on pipeline #472
Description
Bug Report
Environment
OS
Operating System: Linux
MoonBit CLI Tools Version
moon 0.1.20241111 (e6d64e0 2024-11-11) ~/.moon/bin/moon
moonc v0.1.20241111+dc2407357 ~/.moon/bin/moonc
moonrun 0.1.20241111 (e6d64e0 2024-11-11) ~/.moon/bin/moonrun
Steps to Reproduce
a simple program
fn main {
for {
println("y")
}
}
Runs with
moon run main.mbt | head -n 1
Expected Behavior
print y for once
Actual Behavior
RUST_BACKTRACE=full bash tests/yes.sh
+ moon run src/yes
+ head -n 2
+ grep 'y\ny\n'
thread 'main' panicked at library/std/src/io/stdio.rs:1118:9:
failed printing to stdout: Broken pipe (os error 32)
stack backtrace:
0: 0x5593e1c60004 - <unknown>
1: 0x5593e1bb075b - <unknown>
2: 0x5593e1c3a5fe - <unknown>
3: 0x5593e1c612a7 - <unknown>
4: 0x5593e1c61136 - <unknown>
5: 0x5593e1c61ace - <unknown>
6: 0x5593e1c614b2 - <unknown>
7: 0x5593e1c61409 - <unknown>
8: 0x5593e1c613f6 - <unknown>
9: 0x5593e1b408a2 - <unknown>
10: 0x5593e1c5fa82 - <unknown>
11: 0x5593e1b4a320 - <unknown>
12: 0x5593e23c7146 - <unknown>
fatal runtime error: failed to initiate panic, error 5
error: failed to run
Stack backtrace:
0: <unknown>
1: <unknown>
2: <unknown>
3: <unknown>
4: <unknown>
5: <unknown>
6: <unknown>
7: <unknown>
8: <unknown>
9: __libc_start_main
10: <unknown>
Checklist
- (Optional) My case is minimal enough to be reproducible.