Xargo bombs with "no such file or directory" when compiling crates

[cr1901]

I suspect this is xargo because the crates I had to compile to run xargo successfully in the first place compiled without issue. Below is an example invocation. I can also duplicate this with the msp430-quickstart repository.

william@xubuntu-dtrain:~/Projects/AT2XT$ make
xargo build --release --target=msp430-none-elf --verbose
+ "rustc" "--print" "sysroot"
+ "rustc" "--print" "target-list"
+ "cargo" "build" "--release" "--manifest-path" "/tmp/xargo.byJFtu8n3Sqm/Cargo.toml" "--target" "msp430-none-elf" "-v" "-p" "core"
   Compiling core v0.0.0 (file:///home/william/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/libcore)
     Running `rustc --crate-name core /home/william/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/libcore/lib.rs --crate-type lib --emit=dep-info,link -C opt-level=3 -C metadata=64a816d530f10be4 -C extra-filename=-64a816d530f10be4 --out-dir /tmp/xargo.byJFtu8n3Sqm/target/msp430-none-elf/release/deps --target msp430-none-elf -L dependency=/tmp/xargo.byJFtu8n3Sqm/target/msp430-none-elf/release/deps -L dependency=/tmp/xargo.byJFtu8n3Sqm/target/release/deps -C link-arg=-Tlink.x -C link-arg=-mmcu=msp430g2211 -C link-arg=-nostartfiles -C link-arg=-lmul_none -C opt-level=s --sysroot /home/william/.xargo -Z force-unstable-if-unmarked`
error: linking with `msp430-elf-gcc` failed: exit code: 1
  |
  = note: "msp430-elf-gcc" "-mcpu=msp430" "-c" "-o" "/tmp/xargo.byJFtu8n3Sqm/target/msp430-none-elf/release/deps/core-64a816d530f10be4.o" "/tmp/xargo.byJFtu8n3Sqm/target/msp430-none-elf/release/deps/core-64a816d530f10be4.s"
  = note: msp430-elf-gcc: error: /tmp/xargo.byJFtu8n3Sqm/target/msp430-none-elf/release/deps/core-64a816d530f10be4.s: No such file or directory
          msp430-elf-gcc: fatal error: no input files
          compilation terminated.
          

error: aborting due to previous error

error: Could not compile `core`.

Caused by:
  process didn't exit successfully: `rustc --crate-name core /home/william/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/libcore/lib.rs --crate-type lib --emit=dep-info,link -C opt-level=3 -C metadata=64a816d530f10be4 -C extra-filename=-64a816d530f10be4 --out-dir /tmp/xargo.byJFtu8n3Sqm/target/msp430-none-elf/release/deps --target msp430-none-elf -L dependency=/tmp/xargo.byJFtu8n3Sqm/target/msp430-none-elf/release/deps -L dependency=/tmp/xargo.byJFtu8n3Sqm/target/release/deps -C link-arg=-Tlink.x -C link-arg=-mmcu=msp430g2211 -C link-arg=-nostartfiles -C link-arg=-lmul_none -C opt-level=s --sysroot /home/william/.xargo -Z force-unstable-if-unmarked` (exit code: 101)
error: `"cargo" "build" "--release" "--manifest-path" "/tmp/xargo.byJFtu8n3Sqm/Cargo.toml" "--target" "msp430-none-elf" "-v" "-p" "core"` failed with exit code: Some(101)
note: run with `RUST_BACKTRACE=1` for a backtrace
Makefile:4: recipe for target 'all' failed
make: *** [all] Error 1

william@xubuntu-dtrain:~/Projects/AT2XT$ xargo --version
xargo 0.3.8
cargo 0.22.0-nightly (7704f7b1f 2017-08-09)
william@xubuntu-dtrain:~/Projects/AT2XT$ rustc --version
rustc 1.21.0-nightly (df511d554 2017-08-14)
william@xubuntu-dtrain:~/Projects/AT2XT$ uname -a
Linux xubuntu-dtrain 4.10.0-32-generic #36~16.04.1-Ubuntu SMP Wed Aug 9 09:19:02 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

Here are the contents of the xargo directory while core is being compiled (same idea, different invocation):

/tmp/xargo.kkQrYRvEDdi8:
total 16
-rw-rw-r-- 1 william william  122 Aug 14 23:52 Cargo.lock
-rw-rw-r-- 1 william william  270 Aug 14 23:52 Cargo.toml
drwxrwxr-x 2 william william 4096 Aug 14 23:52 src
drwxrwxr-x 4 william william 4096 Aug 14 23:52 target

/tmp/xargo.kkQrYRvEDdi8/src:
total 0
-rw-rw-r-- 1 william william 0 Aug 14 23:52 lib.rs

/tmp/xargo.kkQrYRvEDdi8/target:
total 8
drwxrwxr-x 3 william william 4096 Aug 14 23:52 msp430-none-elf
drwxrwxr-x 8 william william 4096 Aug 14 23:52 release

/tmp/xargo.kkQrYRvEDdi8/target/msp430-none-elf:
total 4
drwxrwxr-x 8 william william 4096 Aug 14 23:52 release

/tmp/xargo.kkQrYRvEDdi8/target/msp430-none-elf/release:
total 20
drwxrwxr-x 2 william william 4096 Aug 14 23:52 build
drwxrwxr-x 2 william william 4096 Aug 14 23:52 deps
drwxrwxr-x 2 william william 4096 Aug 14 23:52 examples
drwxrwxr-x 2 william william 4096 Aug 14 23:52 incremental
drwxrwxr-x 2 william william 4096 Aug 14 23:52 native

/tmp/xargo.kkQrYRvEDdi8/target/msp430-none-elf/release/build:
total 0

/tmp/xargo.kkQrYRvEDdi8/target/msp430-none-elf/release/deps:
total 32
-rw-rw-r-- 1 william william 29644 Aug 14 23:52 core-64a816d530f10be4.d

/tmp/xargo.kkQrYRvEDdi8/target/msp430-none-elf/release/examples:
total 0

/tmp/xargo.kkQrYRvEDdi8/target/msp430-none-elf/release/incremental:
total 0

/tmp/xargo.kkQrYRvEDdi8/target/msp430-none-elf/release/native:
total 0

/tmp/xargo.kkQrYRvEDdi8/target/release:
total 20
drwxrwxr-x 2 william william 4096 Aug 14 23:52 build
drwxrwxr-x 2 william william 4096 Aug 14 23:52 deps
drwxrwxr-x 2 william william 4096 Aug 14 23:52 examples
drwxrwxr-x 2 william william 4096 Aug 14 23:52 incremental
drwxrwxr-x 2 william william 4096 Aug 14 23:52 native

/tmp/xargo.kkQrYRvEDdi8/target/release/build:
total 0

/tmp/xargo.kkQrYRvEDdi8/target/release/deps:
total 0

/tmp/xargo.kkQrYRvEDdi8/target/release/examples:
total 0

/tmp/xargo.kkQrYRvEDdi8/target/release/incremental:
total 0

/tmp/xargo.kkQrYRvEDdi8/target/release/native:
total 0

Only the dependencies (?) .d file ends up in this directory where the object and assembly files should be emitted. So indeed, rustc can't find the objects to pass to the msp430 assembler. What I haven't figured out yet is: "where did the assembler output go?"

[kivikakk]

Can confirm I see this too. Here's the output from an attempted build of msp430-quickstart; looks basically the same, but just in case it's helpful. (build host is macOS)

$ xargo build --verbose
+ "rustc" "--print" "sysroot"
+ "rustc" "--print" "target-list"
+ "cargo" "build" "--release" "--manifest-path" "/var/folders/57/6bcdkjmj7zz1zm5t_7fyn0y40000gn/T/xargo.ANZYoQs0mwbP/Cargo.toml" "--target" "msp430-none-elf" "-v" "-p" "core"
   Compiling core v0.0.0 (file:///Users/kivikakk/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore)
     Running `rustc --crate-name core /Users/kivikakk/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/lib.rs --crate-type lib --emit=dep-info,link -C opt-level=3 -C metadata=b0cb4fa932d9e93e -C extra-filename=-b0cb4fa932d9e93e --out-dir /var/folders/57/6bcdkjmj7zz1zm5t_7fyn0y40000gn/T/xargo.ANZYoQs0mwbP/target/msp430-none-elf/release/deps --target msp430-none-elf -L dependency=/var/folders/57/6bcdkjmj7zz1zm5t_7fyn0y40000gn/T/xargo.ANZYoQs0mwbP/target/msp430-none-elf/release/deps -L dependency=/var/folders/57/6bcdkjmj7zz1zm5t_7fyn0y40000gn/T/xargo.ANZYoQs0mwbP/target/release/deps -C link-arg=-nostartfiles -C link-arg=-Tlink.x --sysroot /Users/kivikakk/.xargo -Z force-unstable-if-unmarked`
error: linking with `msp430-elf-gcc` failed: exit code: 1
  |
  = note: "msp430-elf-gcc" "-mcpu=msp430" "-c" "-o" "/var/folders/57/6bcdkjmj7zz1zm5t_7fyn0y40000gn/T/xargo.ANZYoQs0mwbP/target/msp430-none-elf/release/deps/core-b0cb4fa932d9e93e.o" "/var/folders/57/6bcdkjmj7zz1zm5t_7fyn0y40000gn/T/xargo.ANZYoQs0mwbP/target/msp430-none-elf/release/deps/core-b0cb4fa932d9e93e.s"
  = note: msp430-elf-gcc: error: /var/folders/57/6bcdkjmj7zz1zm5t_7fyn0y40000gn/T/xargo.ANZYoQs0mwbP/target/msp430-none-elf/release/deps/core-b0cb4fa932d9e93e.s: No such file or directory
          msp430-elf-gcc: fatal error: no input files
          compilation terminated.


error: aborting due to previous error

error: Could not compile `core`.

Caused by:
  process didn't exit successfully: `rustc --crate-name core /Users/kivikakk/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/lib.rs --crate-type lib --emit=dep-info,link -C opt-level=3 -C metadata=b0cb4fa932d9e93e -C extra-filename=-b0cb4fa932d9e93e --out-dir /var/folders/57/6bcdkjmj7zz1zm5t_7fyn0y40000gn/T/xargo.ANZYoQs0mwbP/target/msp430-none-elf/release/deps --target msp430-none-elf -L dependency=/var/folders/57/6bcdkjmj7zz1zm5t_7fyn0y40000gn/T/xargo.ANZYoQs0mwbP/target/msp430-none-elf/release/deps -L dependency=/var/folders/57/6bcdkjmj7zz1zm5t_7fyn0y40000gn/T/xargo.ANZYoQs0mwbP/target/release/deps -C link-arg=-nostartfiles -C link-arg=-Tlink.x --sysroot /Users/kivikakk/.xargo -Z force-unstable-if-unmarked` (exit code: 101)
error: `"cargo" "build" "--release" "--manifest-path" "/var/folders/57/6bcdkjmj7zz1zm5t_7fyn0y40000gn/T/xargo.ANZYoQs0mwbP/Cargo.toml" "--target" "msp430-none-elf" "-v" "-p" "core"` failed with exit code: Some(101)
note: run with `RUST_BACKTRACE=1` for a backtrace

And the backtrace:

stack backtrace:
   0:        0x103830bce - backtrace::backtrace::trace::h0f497b1bcba29b5f
   1:        0x103830c0c - backtrace::capture::Backtrace::new::h7c68c9466c6ae5c9
   2:        0x1038302a6 - error_chain::make_backtrace::h20f55bd347aa1bfe
   3:        0x103830368 - _$LT$error_chain..State$u20$as$u20$core..default..Default$GT$::default::hc4a17d73ac756ba0
   4:        0x103819975 - xargo::sysroot::update::hbe5628cfed21c0fa
   5:        0x1038235f0 - xargo::run::he83b978444922056
   6:        0x10381f69f - xargo::main::h59bc5ba11103c3e5
   7:        0x10387371e - __rust_maybe_catch_panic
   8:        0x103868b58 - std::rt::lang_start::h04a8930cf31652a8

[japaric]

Looks like rust-lang/rust#45836. This is something that has to be fixed in rustc.

[kivikakk]

msp430 build looks fine on lastest nightly now that rust-lang/rust#45836 is in! 👍

(The compile for the msp430-rtfm-macros crate fails because of nightly changes, but I think this issue is resolved.)

[japaric]

@kivikakk thanks for reporting! Let's close this then.