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Getting thread 'main' panicked at 'called Option::unwrap() on a None value' #275

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hwittenborn opened this issue Jul 7, 2023 · 4 comments
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Getting thread 'main' panicked at 'called Option::unwrap() on a None value' #275

hwittenborn opened this issue Jul 7, 2023 · 4 comments
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C-bug Something isn't working

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@hwittenborn
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I'm getting this error whenever I try to create a SquashFS image in my application:

thread 'main' panicked at 'called `Option::unwrap()` on a `None` value', /home/hunter/.cargo/registry/src/index.crates.io-6f17d22bba15001f/backhand-0.13.0/src/entry.rs:49:69
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

I was also able the reproduce the issue with the following code:

let mut writer = std::io::Cursor::new(vec![]);
let mut fs = backhand::FilesystemWriter::default();
fs.write(&mut writer).unwrap();
@hwittenborn hwittenborn changed the title Getting thread 'main' panicked at 'called Option::unwrap() on a None value' Getting thread 'main' panicked at 'called 'Option::unwrap()' on a 'None' value' Jul 7, 2023
@hwittenborn hwittenborn changed the title Getting thread 'main' panicked at 'called 'Option::unwrap()' on a 'None' value' Getting thread 'main' panicked at 'called Option::unwrap() on a 'None' value' Jul 7, 2023
@hwittenborn hwittenborn changed the title Getting thread 'main' panicked at 'called Option::unwrap() on a 'None' value' Getting thread 'main' panicked at 'called Option::unwrap() on a None value' Jul 7, 2023
@wcampbell0x2a
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Good find. I'm not at my computer but

backhand/src/filesystem/writer.rs

Line 94 in 96c8372

id_table: vec![],

Should instead call:

backhand/src/id.rs

Line 17 in 96c8372

pub fn root() -> Vec<Id> {

@wcampbell0x2a wcampbell0x2a added the C-bug Something isn't working label Jul 8, 2023
@wcampbell0x2a
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#276 should fix this

@hwittenborn
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Thank you @wcampbell0x2a! I'll go ahead and try running that branch in my program.

@hwittenborn
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Can confirm the PR fixed the issue, thanks a ton @wcampbell0x2a! Feel free to close the issue whenever it's best for you.

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@wcampbell0x2a @hwittenborn