Closed
Description
Rustc reports an internal compiler error: unexpected panic by compiling a Rocket program.
I guess the problem is a logically wrong function call by calling two "#get" functions which are close to being similar which should report an error.
This is the code of failure:
#[get("/")]
fn lipmato(_user: UserId, ctrl: State<SafeController>, flash: Option<FlashMessage>) -> Template {
let tmpl = &mut TemplateLipmato::from_controller(
&ctrl,
);
if flash.is_some() {
tmpl.error_occured(flash.unwrap().msg().to_string());
}
Template::render(
"lipmato",
tmpl)
}
// this function below should probably report an error. If I do not call this function, rustc works well. Otherwise it crashes.
#[get("/"), rank = 2]
fn lipmato(_user: UserId, ctrl: State<SafeController>) -> Redirect {
if let Some(user) = ctrl.lock().unwrap().get_user_by_id(_user.0) {
if !user.allow_lipmato {
Redirect::to("/login")
}
}
}
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herzog@Elfriede:~/Lipotype/ltx2/webapp-rs (master)*
$ cargo run --verbose
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Compiling webapp v0.1.0 (file:///home/herzog/Lipotype/ltx2/webapp-rs)
Running `rustc --crate-name webapp src/main.rs --crate-type bin --emit=dep-info,link -C debuginfo=2 -C metadata=e5134a661d18bea6 -C extra-filename=-e5134a661d18bea6 --out-dir /home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps -C incremental=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/incremental -L dependency=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps --extern identifier=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libidentifier-ecde33b94536b274.rlib --extern serde_derive=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libserde_derive-9ef300bae18f17d9.so --extern rustc_serialize=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/librustc_serialize-bf5c97f604e4ef03.rlib --extern rocket=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/librocket-f99ac287ddf2c766.rlib --extern chemsc=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libchemsc-cb707da6de644f23.rlib --extern dotenv=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libdotenv-34c6ff00f9a4b787.rlib --extern rusqlite=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/librusqlite-5664e987999b25a6.rlib --extern config=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libconfig-8ca0b2bf5fa88b55.rlib --extern serde_json=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libserde_json-ba4c2990989a04b9.rlib --extern flexi_logger=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libflexi_logger-365847d141d31962.rlib --extern chrono=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libchrono-7253c7191da6dcfd.rlib --extern rocket_simpleauth=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/librocket_simpleauth-f6f087242fb21a05.rlib --extern pwhash=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libpwhash-d16dcdec3e942cba.rlib --extern log=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/liblog-be8fd45b81578a9c.rlib --extern rocket_contrib=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/librocket_contrib-92f14a190b0ae9d9.rlib --extern time=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libtime-78bfec62797427f9.rlib --extern multipart=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libmultipart-7c58dc6c197c6807.rlib --extern rocket_codegen=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/librocket_codegen.so --extern regex=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libregex-88fde11c8200a853.rlib --extern serde=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libserde-5b036d096353ceb0.rlib --extern mfql=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libmfql-e19c5a5dd359cf3c.rlib --extern webapp=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libwebapp-235791e339709820.rlib -L native=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/build/rust-crypto-39daf7f7f6152475/out -L native=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/build/backtrace-sys-95d5acac02bbebb5/out/.libs -L native=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/build/miniz-sys-3922c4e1dc390d77/out -L native=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/build/ring-a072ff1445a1f647/out`
error: internal compiler error: Error constructed but not emitted
thread 'rustc' panicked at 'explicit panic', librustc_errors/diagnostic_builder.rs:242:13
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
stack backtrace:
0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
1: std::sys_common::backtrace::_print
at libstd/sys_common/backtrace.rs:71
2: std::panicking::default_hook::{{closure}}
at libstd/sys_common/backtrace.rs:59
at libstd/panicking.rs:207
3: std::panicking::default_hook
at libstd/panicking.rs:223
4: core::ops::function::Fn::call
5: std::panicking::rust_panic_with_hook
at libstd/panicking.rs:403
6: std::panicking::begin_panic
7: <rustc_errors::diagnostic_builder::DiagnosticBuilder<'a> as core::ops::drop::Drop>::drop
8: syntax::ext::expand::MacroExpander::expand_invoc
9: syntax::ext::expand::MacroExpander::expand
10: syntax::ext::expand::MacroExpander::expand_crate
11: rustc_driver::driver::phase_2_configure_and_expand_inner::{{closure}}
12: rustc_driver::driver::phase_2_configure_and_expand_inner
13: rustc_driver::driver::compile_input
14: rustc_driver::run_compiler
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 1.26.0-nightly (2789b067d 2018-03-06) running on x86_64-unknown-linux-gnu
note: compiler flags: -C debuginfo=2 -C incremental --crate-type bin
note: some of the compiler flags provided by cargo are hidden
error: Could not compile `webapp`.
Caused by:
process didn't exit successfully: `rustc --crate-name webapp src/main.rs --crate-type bin --emit=dep-info,link -C debuginfo=2 -C metadata=e5134a661d18bea6 -C extra-filename=-e5134a661d18bea6 --out-dir /home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps -C incremental=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/incremental -L dependency=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps --extern identifier=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libidentifier-ecde33b94536b274.rlib --extern serde_derive=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libserde_derive-9ef300bae18f17d9.so --extern rustc_serialize=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/librustc_serialize-bf5c97f604e4ef03.rlib --extern rocket=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/librocket-f99ac287ddf2c766.rlib --extern chemsc=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libchemsc-cb707da6de644f23.rlib --extern dotenv=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libdotenv-34c6ff00f9a4b787.rlib --extern rusqlite=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/librusqlite-5664e987999b25a6.rlib --extern config=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libconfig-8ca0b2bf5fa88b55.rlib --extern serde_json=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libserde_json-ba4c2990989a04b9.rlib --extern flexi_logger=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libflexi_logger-365847d141d31962.rlib --extern chrono=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libchrono-7253c7191da6dcfd.rlib --extern rocket_simpleauth=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/librocket_simpleauth-f6f087242fb21a05.rlib --extern pwhash=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libpwhash-d16dcdec3e942cba.rlib --extern log=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/liblog-be8fd45b81578a9c.rlib --extern rocket_contrib=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/librocket_contrib-92f14a190b0ae9d9.rlib --extern time=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libtime-78bfec62797427f9.rlib --extern multipart=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libmultipart-7c58dc6c197c6807.rlib --extern rocket_codegen=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/librocket_codegen.so --extern regex=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libregex-88fde11c8200a853.rlib --extern serde=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libserde-5b036d096353ceb0.rlib --extern mfql=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libmfql-e19c5a5dd359cf3c.rlib --extern webapp=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/deps/libwebapp-235791e339709820.rlib -L native=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/build/rust-crypto-39daf7f7f6152475/out -L native=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/build/backtrace-sys-95d5acac02bbebb5/out/.libs -L native=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/build/miniz-sys-3922c4e1dc390d77/out -L native=/home/herzog/Lipotype/ltx2/webapp-rs/target/debug/build/ring-a072ff1445a1f647/out` (exit code: 101)