How can I stop rustc including system specific information such as absolute file paths of the source it's compiled from in the binaries it generates?

/checkout/src/libcore/option.rs
/home/kfairmasterz/.cargo/registry/src/github.com-1ecc6299db9ec823/typeable-0.1.2/src/lib.rs
/home/kfairmasterz/.cargo/registry/src/github.com-1ecc6299db9ec823/openssl-0.9.7/src/ssl/bio.rs

I tried: -Cdebuginfo=0 -Zno-landing-pads -C opt-level=3 -C panic=abort -C lto

It still exists panic message in binary:

╭─kfairmasterz@Android /tmp/tst  ‹master*› 
╰─➤  LC_ALL=en_US.UTF8 grep -in "checkout" target/i686-unknown-linux-gnu/release/tst infomation
Binary file target/i686-unknown-linux-gnu/release/tst matches
╭─kfairmasterz@Android /tmp/tst  ‹master*› 
╰─➤  LC_ALL=en_US.UTF8 grep -in "home/kfairmasterz" target/i686-unknown-linux-gnu/release/tst
Binary file target/i686-unknown-linux-gnu/release/tst matches

What should I do?

I see, they are hardcoded in libstd.

https://doc.rust-lang.org/nightly/src/std/macros.rs.html#39-60

#[macro_export]
#[stable(feature = "rust1", since = "1.0.0")]
#[allow_internal_unstable]
macro_rules! panic {
    () => ({
        panic!("explicit panic")
    });
    ($msg:expr) => ({
        $crate::rt::begin_panic($msg, {
            // static requires less code at runtime, more constant data
            static _FILE_LINE: (&'static str, u32) = (file!(), line!());
            &_FILE_LINE
        })
    });
    ($fmt:expr, $($arg:tt)+) => ({
        $crate::rt::begin_panic_fmt(&format_args!($fmt, $($arg)+), {
            // The leading _'s are to avoid dead code warnings if this is
            // used inside a dead function. Just `#[allow(dead_code)]` is
            // insufficient, since the user may have
            // `#[forbid(dead_code)]` and which cannot be overridden.
            static _FILE_LINE: (&'static str, u32) = (file!(), line!());
            &_FILE_LINE
        })
    });
}

https://doc.rust-lang.org/nightly/src/core/macros.rs.html#15-31

#[macro_export]
#[allow_internal_unstable]
#[stable(feature = "core", since = "1.6.0")]
macro_rules! panic {
    () => (
        panic!("explicit panic")
    );
    ($msg:expr) => ({
        static _MSG_FILE_LINE: (&'static str, &'static str, u32) = ($msg, file!(), line!());
        $crate::panicking::panic(&_MSG_FILE_LINE)
    });
    ($fmt:expr, $($arg:tt)*) => ({
        // The leading _'s are to avoid dead code warnings if this is
        // used inside a dead function. Just `#[allow(dead_code)]` is
        // insufficient, since the user may have
        // `#[forbid(dead_code)]` and which cannot be overridden.
        static _FILE_LINE: (&'static str, u32) = (file!(), line!());
        $crate::panicking::panic_fmt(format_args!($fmt, $($arg)*), &_FILE_LINE)
    });
}

I know how to fix it for now.

No, It's doesn't work. I had to find another way out.

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@@@                                                                                                  
<u/release/deps/tst-55c0f628e60214f1" [noeol][converted] 3861L, 1142827C                                                                                                              

Almost I am given up. The strange local source file path string where are they come from?
https://github.com/kfairmasterz/wtf

https://www.reddit.com/r/rust/comments/5ygehg/when_i_opened_a_rustc_compiled_binary_that/

[steveklabnik]

It is unclear what your question is. These paths point to where things were compiled, which in the case of libstd, is not on your computer, but on our build machines.

How to do not let rustc writing that local source file path string in the final compiled binary program?

I am sorry about the unclear question.

[steveklabnik]

I believe you can run strip; I am not aware of a flag or anything to turn this off, though I may be wrong.

@steveklabnik I tried. it didn't work.

cd /tmp
git clone https://github.com/kfairmasterz/wtf
cd wtf
cargo build --release
strip ./target/release/wtf
objdump -s -j .rodata ./target/release/wtf