Linker does not support -no-pie command line option.

[stappersg]

This issue is to report that

WARN rustc_codegen_ssa::back::link Linker does not support -no-pie command line option. Retrying without.

is a known warning.

And this issue to tell how a succesfull build looks.

stappers@myhost:~/src/rust/RustAVR/blink
$ cargo clean ; cargo version ; rustc --version
cargo 1.63.0-nightly (38472bc19 2022-05-31)
rustc 1.63.0-nightly (fee3a459d 2022-06-05)
stappers@myhost:~/src/rust/RustAVR/blink
$ cargo build --release
   Compiling proc-macro2 v1.0.39
   Compiling unicode-ident v1.0.0
   Compiling compiler_builtins v0.1.73
   Compiling syn v1.0.96
   Compiling json v0.12.4
   Compiling core v0.0.0 (/home/stappers/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core)
   Compiling xml-rs v0.8.4
   Compiling lazy_static v1.4.0
   Compiling target-cpu-fetch v0.1.3
   Compiling xmltree v0.10.3
   Compiling target-cpu-macro v0.1.3
   Compiling avr-mcu v0.3.5
   Compiling quote v1.0.18
   Compiling ruduino v0.4.0 (https://github.com/avr-rust/ruduino?branch=master#a33d38a7)
   Compiling const_env_impl--value v0.1.2
   Compiling const_env--value v0.1.2
   Compiling rustc-std-workspace-core v1.99.0
     (/home/stappers/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/rustc-std-workspace-core)
   Compiling avr-config v2.0.1
   Compiling avr-std-stub v1.0.3
   Compiling avr_delay v0.4.0 (https://github.com/avr-rust/delay#cfe9848f)
   Compiling blink v0.1.0 (/home/stappers/src/rust/RustAVR/blink)
WARN rustc_codegen_ssa::back::link Linker does not support -no-pie command line option. Retrying without.
    Finished release [optimized] target(s) in 7.12s
stappers@myhost:~/src/rust/RustAVR/blink
$ file target/avr-atmega328p/release/blink.elf 
target/avr-atmega328p/release/blink.elf: ELF 32-bit LSB executable, Atmel AVR 8-bit, version 1 (SYSV),
  statically linked, with debug_info, not stripped
stappers@myhost:~/src/rust/RustAVR/blink
$