[tor-bugs] #27101 [Core Tor/Tor]: Error building tor in tor browser nightly builds

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#27101: Error building tor in tor browser nightly builds
------------------------------+--------------------
     Reporter:  boklm         |      Owner:  (none)
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
      Sponsor:                |
------------------------------+--------------------
 We currently have an error when building tor for linux i686 and x86_64,
 using master commit.

 The build fails with the following error:
 {{{
   CC     src/feature/dirauth/src_core_libtor_app_testing_a-
 shared_random_state.o
 ( cd "/var/tmp/build/tor-df444e482bc0/src/rust" ; \
                 CARGO_TARGET_DIR="/var/tmp/build/tor-
 df444e482bc0/src/rust/target" \
                 CARGO_HOME="/var/tmp/build/tor-df444e482bc0/src/rust" \
                 cargo build --release  \
                 --frozen \
                 --manifest-path "/var/tmp/build/tor-
 df444e482bc0/src/rust/tor_rust/Cargo.toml" )
 cargo: /var/tmp/dist/tor/Tor/libssl.so.1.0.0: no version information
 available (required by cargo)
 cargo: /var/tmp/dist/tor/Tor/libssl.so.1.0.0: no version information
 available (required by cargo)
 cargo: /var/tmp/dist/tor/Tor/libcrypto.so.1.0.0: no version information
 available (required by cargo)
 cargo: /var/tmp/dist/tor/Tor/libcrypto.so.1.0.0: no version information
 available (required by cargo)
 cargo: /var/tmp/dist/tor/Tor/libcrypto.so.1.0.0: no version information
 available (required by cargo)
 error: process didn't exit successfully: `rustc -vV` (exit code: 101)
 --- stdout
 rustc 1.26.1
 binary: rustc
 commit-hash: unknown
 commit-date: unknown
 host: x86_64-unknown-linux-gnu
 release: 1.26.1

 --- stderr
 error: couldn't load codegen backend
 "/var/tmp/dist/rust/lib/rustlib/x86_64-unknown-linux-gnu/codegen-backends
 /librustc_trans-llvm.so": "/var/tmp/dist/rust/lib/rustlib/x86_64-unknown-
 linux-gnu/codegen-backends/librustc_trans-llvm.so: undefined symbol:
 _ZNKSt3_V214error_category10_M_messageB5cxx11Ei"


 make[1]: *** [src/rust/target/release/libtor_rust.a] Error 101
 make[1]: *** Waiting for unfinished jobs....
 make[1]: Leaving directory `/var/tmp/build/tor-df444e482bc0'
 make: *** [all] Error 2
 }}}

 We don't have this error on our Windows and macOS build, but it is
 probably because we only use rust for the Linux build for now.

 I started seeing this error on August 8.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27101>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online

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