Source: cargo
Version: 0.25.0-2
Severity: normal
User: debian-sp...@lists.debian.org
Usertags: sparc64
Hello!
The change to enable incremental builds by default unfortunately currently
breaks Rust builds on sparc64. I have observed this problem for building
both Firefox and the Rust compiler and it looks like this [1]:
Compiling cmake v0.1.29
Running `/usr/bin/rustc --crate-name cmake vendor/cmake/src/lib.rs
--crate-type lib --emit=dep-info,link -C debug-assertions=off -C
overflow-checks=on -C metadata=e1cd2a47defb4d9a -C
extra-filename=-e1cd2a47defb4d9a --out-dir
'/<<BUILDDIR>>/rustc-1.25.0+dfsg1/build/bootstrap/debug/deps' -L
'dependency=/<<BUILDDIR>>/rustc-1.25.0+dfsg1/build/bootstrap/debug/deps'
--extern
'cc=/<<BUILDDIR>>/rustc-1.25.0+dfsg1/build/bootstrap/debug/deps/libcc-9169eb827816c87c.rlib'
--cap-lints warn -Cdebuginfo=2`
error: incremental compilation: could not create session directory lock file:
No such process (os error 3)
error: internal compiler error: unexpected panic
note: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report:
https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports
note: rustc 1.24.1 running on sparc64-unknown-linux-gnu
note: run with `RUST_BACKTRACE=1` for a backtrace
thread 'rustc' panicked at 'src/librustc/session/mod.rs:665: Trying to get
session directory from IncrCompSession `NotInitialized`',
src/librustc/session/mod.rs:1141:26
stack backtrace:
0: rust_metadata_std_e973fcbcfde4db1b7f5619ab17536071
1: rust_metadata_std_e973fcbcfde4db1b7f5619ab17536071
2: rust_metadata_std_e973fcbcfde4db1b7f5619ab17536071
3: rust_metadata_std_e973fcbcfde4db1b7f5619ab17536071
4: std::panicking::rust_panic_with_hook
5: rust_metadata_rustc_f5b4f956815e4c315eb00c57eaa07f5b
6: <unknown>
7: rust_metadata_rustc_f5b4f956815e4c315eb00c57eaa07f5b
8: rustc::session::bug_fmt
9: rustc::session::Session::incr_comp_session_dir
10: rustc_incremental::persist::load::load_dep_graph
11: <unknown>
12: rustc_driver::driver::compile_input
13: rustc_driver::run_compiler
14: <unknown>
15: <unknown>
16: __rust_maybe_catch_panic
17: <unknown>
18: rust_metadata_std_e973fcbcfde4db1b7f5619ab17536071
19: rust_metadata_std_e973fcbcfde4db1b7f5619ab17536071
20: <unknown>
error: Could not compile `build_helper`.
I have not yet figured out what the problem is, but I can work-around the
issue by setting CARGO_INCREMENTAL=0 in the build environment.
Would it be possible to disable incremental builds on sparc64 by default
until this issue has been resolved? I assume that the problem is that
the incremental builds are not 100% thread-safe yet and might cause issues
on SPARC servers which often have many CPUs available.
Thanks,
Adrian
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - glaub...@debian.org
`. `' Freie Universitaet Berlin - glaub...@physik.fu-berlin.de
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
