error[E0277]: syntax_pos::symbol::LocalInternedString cannot be sent between threads safely #3613
Description
EDIT: tl;dr: this error(and the 3 others inside Details below) happens because I've compiled rustc with non-default config.toml setting: experimental-parallel-queries = true
In trying to compile rust-clippy's latest commit 85ba5f0 I get the following error:
error[E0277]: `syntax_pos::symbol::LocalInternedString` cannot be sent between threads safely --> /home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/clippy_lints/src/lib.rs:352:34 | 352 | reg.register_early_lint_pass(box enum_variants::EnumVariantNames::new(conf.enum_variant_name_threshold)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `syntax_pos::symbol::LocalInternedString` cannot be sent between threads safely | = help: within `(syntax_pos::symbol::LocalInternedString, std::string::String)`, the trait `std::marker::Send` is not implemented for `syntax_pos::symbol::LocalInternedString` = note: required because it appears within the type `(syntax_pos::symbol::LocalInternedString, std::string::String)` = note: required because of the requirements on the impl of `std::marker::Send` for `std::ptr::Unique<(syntax_pos::symbol::LocalInternedString, std::string::String)>` = note: required because it appears within the type `alloc::raw_vec::RawVec<(syntax_pos::symbol::LocalInternedString, std::string::String)>` = note: required because it appears within the type `std::vec::Vec<(syntax_pos::symbol::LocalInternedString, std::string::String)>` = note: required because it appears within the type `enum_variants::EnumVariantNames` = note: required for the cast to the object type `dyn rustc::lint::EarlyLintPass + std::marker::Send + std::marker::Sync`$ time cargo build --verbose !! LD_LIBRARY_PATH=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust/rust/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust/rust/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib: !! Executing '/home/xftroxgpx/build/2nonpkgs/rust.stuff/cargo/cargo//target/release//cargo' in pwd='/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy' with args: 'build --verbose' Fresh cc v1.0.25 Fresh unicode-xid v0.1.0 Fresh version_check v0.1.5 Fresh libc v0.2.43 Fresh matches v0.1.8 Fresh cfg-if v0.1.6 Fresh rustc-demangle v0.1.9 Fresh unicode-width v0.1.5 Fresh void v1.0.2 Fresh semver-parser v0.7.0 Fresh unicode-normalization v0.1.7 Fresh itoa v0.4.3 Fresh percent-encoding v1.0.1 Fresh bitflags v1.0.4 Fresh ucd-util v0.1.2 Fresh rustc_tools_util v0.1.0 (/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/rustc_tools_util) Fresh either v1.5.0 Fresh utf8-ranges v1.0.2 Fresh quine-mc_cluskey v0.2.4 Fresh if_chain v0.1.3 Fresh unicode-bidi v0.3.4 Fresh getopts v0.2.18 Fresh unreachable v1.0.0 Fresh regex-syntax v0.6.2 Fresh itertools v0.7.8 Fresh proc-macro2 v0.4.20 Fresh serde v1.0.80 Fresh ryu v0.2.6 Fresh idna v0.1.5 Fresh smallvec v0.6.5 Fresh pulldown-cmark v0.2.0 Fresh backtrace-sys v0.1.24 Fresh quote v0.6.9 Fresh lazy_static v1.1.0 Fresh memchr v2.1.1 Fresh semver v0.9.0 Fresh toml v0.4.8 Fresh serde_json v1.0.32 Fresh url v1.7.1 Fresh backtrace v0.3.9 Fresh syn v0.15.18 Fresh thread_local v0.3.6 Fresh aho-corasick v0.6.9 Fresh error-chain v0.12.0 Fresh serde_derive v1.0.80 Fresh regex v1.0.5 Fresh cargo_metadata v0.6.4 Compiling clippy_lints v0.0.212 (/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/clippy_lints) Running `rustc --edition=2018 --crate-name clippy_lints /home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/clippy_lints/src/lib.rs --color always --crate-type lib --emit=dep-info,link -C debuginfo=2 -C metadata=577755aa4b98394d -C extra-filename=-577755aa4b98394d --out-dir /home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps -C incremental=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/incremental -L dependency=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps --extern cargo_metadata=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libcargo_metadata-e3e887206b827647.rlib --extern if_chain=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libif_chain-99c0457ea547490a.rlib --extern itertools=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libitertools-8169a8efe487708b.rlib --extern lazy_static=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/liblazy_static-7feb2e85f877fabd.rlib --extern matches=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libmatches-72c4b0ca8723697d.rlib --extern pulldown_cmark=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libpulldown_cmark-24e41b2cff8b3036.rlib --extern quine_mc_cluskey=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libquine_mc_cluskey-1df5db91f29ce21b.rlib --extern regex_syntax=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libregex_syntax-a7b792323b070331.rlib --extern semver=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libsemver-1a3dc4a8154bb575.rlib --extern serde=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libserde-8bda8064e2e1b789.rlib --extern serde_derive=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libserde_derive-004cb89792953908.so --extern smallvec=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libsmallvec-064d24eee6737503.rlib --extern toml=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libtoml-c558314f6b324981.rlib --extern unicode_normalization=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libunicode_normalization-afaebc42ab675f1e.rlib --extern url=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/liburl-a91d0fd3c5fb8bc1.rlib -L native=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/build/backtrace-sys-efa17084f44d4d88/out` !! LD_LIBRARY_PATH=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps:/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust/rust/build/x86_64-unknown-linux-gnu/stage2/lib:/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust/rust/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust/rust/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib: !! Executing '/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust/rust/build//x86_64-unknown-linux-gnu/stage2/bin//rustc' in pwd='/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy' with args: '--edition=2018 --crate-name clippy_lints /home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/clippy_lints/src/lib.rs --color always --crate-type lib --emit=dep-info,link -C debuginfo=2 -C metadata=577755aa4b98394d -C extra-filename=-577755aa4b98394d --out-dir /home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps -C incremental=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/incremental -L dependency=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps --extern cargo_metadata=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libcargo_metadata-e3e887206b827647.rlib --extern if_chain=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libif_chain-99c0457ea547490a.rlib --extern itertools=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libitertools-8169a8efe487708b.rlib --extern lazy_static=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/liblazy_static-7feb2e85f877fabd.rlib --extern matches=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libmatches-72c4b0ca8723697d.rlib --extern pulldown_cmark=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libpulldown_cmark-24e41b2cff8b3036.rlib --extern quine_mc_cluskey=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libquine_mc_cluskey-1df5db91f29ce21b.rlib --extern regex_syntax=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libregex_syntax-a7b792323b070331.rlib --extern semver=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libsemver-1a3dc4a8154bb575.rlib --extern serde=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libserde-8bda8064e2e1b789.rlib --extern serde_derive=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libserde_derive-004cb89792953908.so --extern smallvec=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libsmallvec-064d24eee6737503.rlib --extern toml=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libtoml-c558314f6b324981.rlib --extern unicode_normalization=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libunicode_normalization-afaebc42ab675f1e.rlib --extern url=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/liburl-a91d0fd3c5fb8bc1.rlib -L native=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/build/backtrace-sys-efa17084f44d4d88/out' error[E0277]: `syntax_pos::symbol::LocalInternedString` cannot be sent between threads safely --> /home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/clippy_lints/src/lib.rs:352:34 | 352 | reg.register_early_lint_pass(box enum_variants::EnumVariantNames::new(conf.enum_variant_name_threshold)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `syntax_pos::symbol::LocalInternedString` cannot be sent between threads safely | = help: within `(syntax_pos::symbol::LocalInternedString, std::string::String)`, the trait `std::marker::Send` is not implemented for `syntax_pos::symbol::LocalInternedString` = note: required because it appears within the type `(syntax_pos::symbol::LocalInternedString, std::string::String)` = note: required because of the requirements on the impl of `std::marker::Send` for `std::ptr::Unique<(syntax_pos::symbol::LocalInternedString, std::string::String)>` = note: required because it appears within the type `alloc::raw_vec::RawVec<(syntax_pos::symbol::LocalInternedString, std::string::String)>` = note: required because it appears within the type `std::vec::Vec<(syntax_pos::symbol::LocalInternedString, std::string::String)>` = note: required because it appears within the type `enum_variants::EnumVariantNames` = note: required for the cast to the object type `dyn rustc::lint::EarlyLintPass + std::marker::Send + std::marker::Sync` error[E0277]: `syntax_pos::symbol::LocalInternedString` cannot be shared between threads safely --> /home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/clippy_lints/src/lib.rs:352:34 | 352 | reg.register_early_lint_pass(box enum_variants::EnumVariantNames::new(conf.enum_variant_name_threshold)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `syntax_pos::symbol::LocalInternedString` cannot be shared between threads safely | = help: within `(syntax_pos::symbol::LocalInternedString, std::string::String)`, the trait `std::marker::Sync` is not implemented for `syntax_pos::symbol::LocalInternedString` = note: required because it appears within the type `(syntax_pos::symbol::LocalInternedString, std::string::String)` = note: required because of the requirements on the impl of `std::marker::Sync` for `std::ptr::Unique<(syntax_pos::symbol::LocalInternedString, std::string::String)>` = note: required because it appears within the type `alloc::raw_vec::RawVec<(syntax_pos::symbol::LocalInternedString, std::string::String)>` = note: required because it appears within the type `std::vec::Vec<(syntax_pos::symbol::LocalInternedString, std::string::String)>` = note: required because it appears within the type `enum_variants::EnumVariantNames` = note: required for the cast to the object type `dyn rustc::lint::EarlyLintPass + std::marker::Send + std::marker::Sync` error[E0308]: mismatched types --> /home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/clippy_lints/src/consts.rs:159:63 | 159 | LitKind::ByteStr(ref s) => Constant::Binary(Rc::clone(s)), | ^ expected struct `std::rc::Rc`, found struct `std::sync::Arc` | = note: expected type `&std::rc::Rc<std::vec::Vec<u8>>` found type `&std::sync::Arc<std::vec::Vec<u8>>` error[E0308]: mismatched types --> /home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/clippy_lints/src/utils/mod.rs:226:50 | 226 | for item in mem::replace(&mut items, Rc::new(vec![])).iter() { | ^^^^^^^^^^^^^^^ expected struct `std::sync::Arc`, found struct `std::rc::Rc` | = note: expected type `std::sync::Arc<std::vec::Vec<rustc::hir::def::Export>>` found type `std::rc::Rc<std::vec::Vec<_>>` error: aborting due to 4 previous errors Some errors occurred: E0277, E0308. For more information about an error, try `rustc --explain E0277`. error: Could not compile `clippy_lints`. Caused by: process didn't exit successfully: `rustc --edition=2018 --crate-name clippy_lints /home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/clippy_lints/src/lib.rs --color always --crate-type lib --emit=dep-info,link -C debuginfo=2 -C metadata=577755aa4b98394d -C extra-filename=-577755aa4b98394d --out-dir /home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps -C incremental=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/incremental -L dependency=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps --extern cargo_metadata=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libcargo_metadata-e3e887206b827647.rlib --extern if_chain=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libif_chain-99c0457ea547490a.rlib --extern itertools=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libitertools-8169a8efe487708b.rlib --extern lazy_static=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/liblazy_static-7feb2e85f877fabd.rlib --extern matches=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libmatches-72c4b0ca8723697d.rlib --extern pulldown_cmark=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libpulldown_cmark-24e41b2cff8b3036.rlib --extern quine_mc_cluskey=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libquine_mc_cluskey-1df5db91f29ce21b.rlib --extern regex_syntax=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libregex_syntax-a7b792323b070331.rlib --extern semver=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libsemver-1a3dc4a8154bb575.rlib --extern serde=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libserde-8bda8064e2e1b789.rlib --extern serde_derive=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libserde_derive-004cb89792953908.so --extern smallvec=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libsmallvec-064d24eee6737503.rlib --extern toml=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libtoml-c558314f6b324981.rlib --extern unicode_normalization=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/libunicode_normalization-afaebc42ab675f1e.rlib --extern url=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/deps/liburl-a91d0fd3c5fb8bc1.rlib -L native=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy/target/debug/build/backtrace-sys-efa17084f44d4d88/out` (exit code: 1) real0m29.244s user0m28.957s sys0m0.278scargo/rustc used:
$ cargo -vV !! LD_LIBRARY_PATH=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust/rust/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust/rust/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib: !! Executing '/home/xftroxgpx/build/2nonpkgs/rust.stuff/cargo/cargo//target/release//cargo' in pwd='/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy' with args: '-vV' cargo 1.33.0-dev (497f426a 2019-01-01) release: 1.33.0 commit-hash: 497f426ab4d41f36c345663b1a161c7eb63c7eac commit-date: 2019-01-01 $ rustc -vV !! LD_LIBRARY_PATH=/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust/rust/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust/rust/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib:/home/xftroxgpx/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib: !! Executing '/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust/rust/build//x86_64-unknown-linux-gnu/stage2/bin//rustc' in pwd='/home/xftroxgpx/build/2nonpkgs/rust.stuff/rust-clippy' with args: '-vV' rustc 1.33.0-dev (96530344e 2019-01-02) binary: rustc commit-hash: 96530344ef951c79e07cad69cf65eddb876b0e2d commit-date: 2019-01-02 host: x86_64-unknown-linux-gnu release: 1.33.0-dev LLVM version: 8.0 $ cargo clippy -V clippy 0.0.212 (39bd844 2018-12-30) (that must be rustup's clippy)
I realized that the fail is also seen here: https://rust-lang-nursery.github.io/rust-toolstate/ and points to these rust changes https://github.com/rust-lang/rust/commits/cae164753f557f668cb75610abda4f790981e5e6