build error

[RCasatta]

Hello, I am trying to follow your guide but I got a build error:

$ make
make[1]: Entering directory '/home/casatta/rustl8710'
cd src/rust && rustup override set nightly
info: using existing install for 'nightly-x86_64-unknown-linux-gnu'
info: override toolchain for '/home/casatta/rustl8710/src/rust' set to 'nightly-x86_64-unknown-linux-gnu'

  nightly-x86_64-unknown-linux-gnu unchanged - rustc 1.27.0-nightly (7360d6dd6 2018-04-15)

cd src/rust && xargo build --target thumbv7m-none-eabi
warning: unused manifest key: dependencies.alloc.alloc
warning: unused manifest key: dependencies.collections.collections
error: failed to load source for a dependency on `collections`

Caused by:
  Unable to update file:///home/casatta/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/libcollections

Caused by:
  failed to read `/home/casatta/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/libcollections/Cargo.toml`

Caused by:
  No such file or directory (os error 2)
error: `"cargo" "build" "--release" "--manifest-path" "/tmp/xargo.8eHaBskflBDV/Cargo.toml" "--target" "thumbv7m-none-eabi" "-p" "alloc"` failed with exit code: Some(101)
note: run with `RUST_BACKTRACE=1` for a backtrace
rust.mk:8: recipe for target 'application' failed
make[1]: *** [application] Error 1
make[1]: Leaving directory '/home/casatta/rustl8710'
Makefile:8: recipe for target 'ram_all' failed
make: *** [ram_all] Error 2

I tried removing the collection import in Xargo.toml as suggested here japaric/steed#159 but then I got an error later in the build process:

Compiling freertos_rs v0.1.0
error[E0463]: can't find crate for `collections`
  --> /home/casatta/.cargo/registry/src/github.com-1ecc6299db9ec823/freertos_rs-0.1.0/src/lib.rs:61:1
   |
61 | extern crate collections;
   | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate

error: aborting due to previous error

For more information about this error, try `rustc --explain E0463`.
error: Could not compile `freertos_rs`.

To learn more, run the command again with --verbose.
rust.mk:8: recipe for target 'application' failed
make[1]: *** [application] Error 101
make[1]: Leaving directory '/home/casatta/rustl8710'
Makefile:8: recipe for target 'ram_all' failed
make: *** [ram_all] Error 2

[vijfhoek]

To fix this build error, you need to edit src/rust/Cargo.toml and change the freertos_rs version from 0.1 to 0.2.

[kissste]

Unfortunately, "0.2" did not help.

[dependencies]
freertos_rs = "0.2"

`steve@AcerGX:~/rustl8710$ make
make[1]: Entering directory '/home/steve/rustl8710'
cd src/rust && rustup override set nightly
info: using existing install for 'nightly-x86_64-unknown-linux-gnu'
info: override toolchain for '/home/steve/rustl8710/src/rust' set to 'nightly-x86_64-unknown-linux-gnu'

nightly-x86_64-unknown-linux-gnu unchanged - rustc 1.31.0-nightly (de3d640f5 2018-10-01)

cd src/rust && xargo build --target thumbv7m-none-eabi
warning: unused manifest key: dependencies.alloc.alloc
warning: unused manifest key: dependencies.collections.collections
error: failed to load source for a dependency on collections

Caused by:
Unable to update /home/steve/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/libcollections

Caused by:
failed to read /home/steve/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/libcollections/Cargo.toml

Caused by:
No such file or directory (os error 2)
error: "cargo" "build" "--release" "--manifest-path" "/tmp/xargo.XwkmPoYZg4KS/Cargo.toml" "--target" "thumbv7m-none-eabi" "-p" "alloc" failed with exit code: Some(101)
note: run with RUST_BACKTRACE=1 for a backtrace
rust.mk:8: recipe for target 'application' failed
make[1]: *** [application] Error 1
make[1]: Leaving directory '/home/steve/rustl8710'
Makefile:8: recipe for target 'ram_all' failed
make: *** [ram_all] Error 2
steve@AcerGX:~/rustl8710$
`

[chevdor]

Yep, getting the same issue. @kissste were you able to build?

[kissste]

Yep, getting the same issue. @kissste were you able to build?

No

[benhadad]

It has been recommended to remove the #[lang = "eh_unwind_resume"] extern fn eh_unwind_resume() {}
from \src\rust\src\lib.rs
and change to GDB = gdb-multiarch in application.mk
add typedef unsigned long long __uint64_t; to support_os.h
also handle __int64_t;

Lup Yuen: Added core dependency

core = {}

Lup Yuen: Collections module no longer exists.

collections = {}

add freertos_rs = "0.3" to Cargo.toml

[benhadad]

https://users.rust-lang.org/t/psa-you-no-longer-need-xargo-to-do-arm-cortex-m-development/16703