use of unstable library feature 'duration_constants'

[arch-user-france1]

     Running `rustc --crate-name quiche --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --crate-type staticlib --crate-type cdylib --emit=dep-info,link -C opt-level=3 -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="ffi"' -C metadata=2ce2d20d1896e6b4 --out-dir /root/quiche/target/release/deps -L dependency=/root/quiche/target/release/deps --extern lazy_static=/root/quiche/target/release/deps/liblazy_static-a266cfe319823817.rlib --extern libc=/root/quiche/target/release/deps/liblibc-deb97e6f5c8ff939.rlib --extern libm=/root/quiche/target/release/deps/liblibm-14de8d9cbe7992a5.rlib --extern log=/root/quiche/target/release/deps/liblog-8e87dd94a852e2e6.rlib --extern ring=/root/quiche/target/release/deps/libring-28bb73af57141f28.rlib -L native=/root/quiche/target/release/build/ring-621d5b0dd59ce31c/out`
error[E0658]: use of unstable library feature 'duration_constants'
  --> src/recovery/hystart.rs:91:33
   |
91 |             last_round_min_rtt: Duration::MAX,
   |                                 ^^^^^^^^^^^^^
   |
   = note: see issue #57391 <https://github.com/rust-lang/rust/issues/57391> for more information

error[E0658]: use of unstable library feature 'duration_constants'
  --> src/recovery/hystart.rs:93:36
   |
93 |             current_round_min_rtt: Duration::MAX,
   |                                    ^^^^^^^^^^^^^
   |
   = note: see issue #57391 <https://github.com/rust-lang/rust/issues/57391> for more information

error[E0658]: use of unstable library feature 'duration_constants'
  --> src/recovery/hystart.rs:95:35
   |
95 |             css_baseline_min_rtt: Duration::MAX,
   |                                   ^^^^^^^^^^^^^
   |
   = note: see issue #57391 <https://github.com/rust-lang/rust/issues/57391> for more information

error[E0658]: use of unstable library feature 'duration_constants'
   --> src/recovery/hystart.rs:125:42
    |
125 |             self.current_round_min_rtt = Duration::MAX;
    |                                          ^^^^^^^^^^^^^
    |
    = note: see issue #57391 <https://github.com/rust-lang/rust/issues/57391> for more information

error[E0658]: use of unstable library feature 'duration_saturating_ops'
   --> src/recovery/hystart.rs:159:45
    |
159 |                     self.last_round_min_rtt.saturating_add(rtt_thresh)
    |                                             ^^^^^^^^^^^^^^
    |
    = note: see issue #76416 <https://github.com/rust-lang/rust/issues/76416> for more information

error[E0658]: use of unstable library feature 'duration_constants'
   --> src/recovery/hystart.rs:171:49
    |
171 |                     self.css_baseline_min_rtt = Duration::MAX;
    |                                                 ^^^^^^^^^^^^^
    |
    = note: see issue #57391 <https://github.com/rust-lang/rust/issues/57391> for more information

error: aborting due to 6 previous errors

For more information about this error, try `rustc --explain E0658`.
error: could not compile `quiche`

Caused by:
  process didn't exit successfully: `rustc --crate-name quiche --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --crate-type staticlib --crate-type cdylib --emit=dep-info,link -C opt-level=3 -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="ffi"' -C metadata=2ce2d20d1896e6b4 --out-dir /root/quiche/target/release/deps -L dependency=/root/quiche/target/release/deps --extern lazy_static=/root/quiche/target/release/deps/liblazy_static-a266cfe319823817.rlib --extern libc=/root/quiche/target/release/deps/liblibc-deb97e6f5c8ff939.rlib --extern libm=/root/quiche/target/release/deps/liblibm-14de8d9cbe7992a5.rlib --extern log=/root/quiche/target/release/deps/liblog-8e87dd94a852e2e6.rlib --extern ring=/root/quiche/target/release/deps/libring-28bb73af57141f28.rlib -L native=/root/quiche/target/release/build/ring-621d5b0dd59ce31c/out` (exit code: 1)
make[1]: *** [objs/Makefile:1361: ../quiche/target/release/libquiche.a] Fehler 101
make[1]: Verzeichnis „/root/nginx-1.16.1“ wird verlassen
make: *** [Makefile:8: build] Fehler 2

Doesn't work...

[arch-user-france1]

An unstable feature was used.

Erroneous code example:

#[repr(u128)] // error: use of unstable library feature 'repr128'
enum Foo {
    Bar(u64),
}

If you're using a stable or a beta version of rustc, you won't be able to use
any unstable features. In order to do so, please switch to a nightly version of
rustc (by using rustup).

If you're using a nightly version of rustc, just add the corresponding feature
to be able to use it:

#![feature(repr128)]

#[repr(u128)] // ok!
enum Foo {
    Bar(u64),
}

[arch-user-france1]

root@macubuntu:~/nginx-1.16.1# rustup --crate-name quiche --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --crate-type staticlib --crate-type cdylib --emit=dep-info,link -C opt-level=3 -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="ffi"' -C metadata=2ce2d20d1896e6b4 --out-dir /root/quiche/target/release/deps -L dependency=/root/quiche/target/release/deps --extern lazy_static=/root/quiche/target/release/deps/liblazy_static-a266cfe319823817.rlib --extern libc=/root/quiche/target/release/deps/liblibc-deb97e6f5c8ff939.rlib --extern libm=/root/quiche/target/release/deps/liblibm-14de8d9cbe7992a5.rlib --extern log=/root/quiche/target/release/deps/liblog-8e87dd94a852e2e6.rlib --extern ring=/root/quiche/target/release/deps/libring-28bb73af57141f28.rlib -L native=/root/quiche/target/release/build/ring-621d5b0dd59ce31c/out
error: Found argument '--crate-name' which wasn't expected, or isn't valid in this context

USAGE:
    rustup [FLAGS] [+toolchain] <SUBCOMMAND>

For more information try --help
root@macubuntu:~/nginx-1.16.1# 

[arch-user-france1]

rustc 1.51.0

[arch-user-france1]

Works again after:

rustup update nightly
apt remove rustc