rustc could not initialize thread_rng (on pre-getrandom Linux kernel)

[lienke]

nushell: https://book.nushell.sh/en/installation / no on-point issues seen here -- searched for "nushell"

Tried to build nushell from source and it required "nightly" rust. Didn't know how to install that, so I used "cargo install nu"

I expected to see this happen:
Build complete -- the cargo install has worked with other tools.

Instead, this happened:

thread 'rustc' panicked at 'could not initialize thread_rng: All entropy sources failed (permanently unavailable); cause: OS RNG not yet seeded (not ready yet); cause: Resource temporarily unavailable (os error 11)', /cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.1/src/rngs/thread.rs:82:17
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace.

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 1.37.0 (eae3437df 2019-08-13) running on x86_64-unknown-linux-gnu

note: compiler flags: -C opt-level=3 --crate-type lib

note: some of the compiler flags provided by cargo are hidden

error: Could not compile `openssl-sys`.
warning: build failed, waiting for other jobs to finish...
error: failed to compile `nu v0.2.0`, intermediate artifacts can be found at `/tmp/cargo-installbNbt6y`

Meta

rustc --version --verbose:

rustc 1.37.0 (eae3437df 2019-08-13)
binary: rustc
commit-hash: eae3437dfe991621e8afdc82734f4a172d7ddf9b
commit-date: 2019-08-13
host: x86_64-unknown-linux-gnu
release: 1.37.0
LLVM version: 8.0

This issue has been assigned to @mati865 via this comment.

[jonas-schievink]

This looks like an issue in the getrandom crate (cc @dhardy @newpavlov).

What distro and hardware are you building on? Can you post the output of uname -a?

[lienke]

Hi. Fast reply -- thanks ! ... cheers, drl OS, ker|rel, machine: Linux, 3.16.0-7-amd64, x86_64 Distribution : Debian 8.11 (jessie) Linux leap 3.16.0-7-amd64 #1 SMP Debian 3.16.59-1 (2018-10-03) x86_64 GNU/Linux

On 2019-08-24 08:43, Jonas Schievink wrote: This looks like an issue in the getrandom crate (cc @dhardy [1] @newpavlov [2]). What distro and hardware are you building on? Can you post the output of uname -a? -- You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub [3], or mute the thread [4].

Links: ------ [1] https://github.com/dhardy [2] https://github.com/newpavlov [3] #63848?email_source=notifications&email_token=AAOLDKJFPMNEBGGFM2BC3FDQGE3JHA5CNFSM4IPGF37KYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD5CAIWY#issuecomment-524551259 [4] https://github.com/notifications/unsubscribe-auth/AAOLDKLKS3HA35GE4KXC623QGE3JHANCNFSM4IPGF37A

[jonas-schievink]

That kernel version is missing the getrandom() syscall, so perhaps there's something wrong with the fallback paths in the getrandom crate?

[dhardy]

The error report uses Rand v0.6.1 which does not even use the getrandom crate. It would be nice to see if updating nu to rand 0.7 fixes the problem @jonathandturner. We are aware of a potential issue when many new thread-rngs are initialised in a short space of time: rust-random/rand#804 (fixed in recent versions of getrandom).

I don't understand why this issue was reported here, instead of against nu or rand?

[jonas-schievink]

@dhardy the compiler is panicking due to its use of rand, not nushell

[RalfJung]

Not sure how much it would take to update rustc to rand 0.7.0, but updating to 0.6.5 would be easy. @dhardy do you think that could help?

[RalfJung]

Actually, doing cargo update -p rand:0.6.1 breaks the build. Looks like rand accidentally released a breaking change as a patch release?

Build error

error[E0277]: the trait bound `rand_pcg::Mcg128Xsl64: rand_core::SeedableRng` is not satisfied
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/small.rs:96:6
   |
96 | impl SeedableRng for SmallRng {
   |      ^^^^^^^^^^^ the trait `rand_core::SeedableRng` is not implemented for `rand_pcg::Mcg128Xsl64`

error[E0277]: the trait bound `rand_hc::Hc128Rng: rand_core::SeedableRng` is not satisfied
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/std.rs:55:6
   |
55 | impl SeedableRng for StdRng {
   |      ^^^^^^^^^^^ the trait `rand_core::SeedableRng` is not implemented for `rand_hc::Hc128Rng`

error[E0277]: the trait bound `rand_isaac::IsaacRng: rand_core::SeedableRng` is not satisfied
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/deprecated.rs:50:6
   |
50 | impl SeedableRng for IsaacRng {
   |      ^^^^^^^^^^^ the trait `rand_core::SeedableRng` is not implemented for `rand_isaac::IsaacRng`

error[E0277]: the trait bound `rand_isaac::Isaac64Rng: rand_core::SeedableRng` is not satisfied
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/deprecated.rs:96:6
   |
96 | impl SeedableRng for Isaac64Rng {
   |      ^^^^^^^^^^^ the trait `rand_core::SeedableRng` is not implemented for `rand_isaac::Isaac64Rng`

error[E0277]: the trait bound `rand_chacha::ChaChaRng: rand_core::SeedableRng` is not satisfied
   --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/deprecated.rs:141:6
    |
141 | impl SeedableRng for ChaChaRng {
    |      ^^^^^^^^^^^ the trait `rand_core::SeedableRng` is not implemented for `rand_chacha::ChaChaRng`

error[E0277]: the trait bound `rand_hc::Hc128Rng: rand_core::SeedableRng` is not satisfied
   --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/deprecated.rs:198:6
    |
198 | impl SeedableRng for Hc128Rng {
    |      ^^^^^^^^^^^ the trait `rand_core::SeedableRng` is not implemented for `rand_hc::Hc128Rng`

error[E0277]: the trait bound `rand_xorshift::XorShiftRng: rand_core::SeedableRng` is not satisfied
   --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/deprecated.rs:239:6
    |
239 | impl SeedableRng for XorShiftRng {
    |      ^^^^^^^^^^^ the trait `rand_core::SeedableRng` is not implemented for `rand_xorshift::XorShiftRng`

error[E0277]: the trait bound `rand_hc::Hc128Rng: rand_core::SeedableRng` is not satisfied
   --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/deprecated.rs:279:6
    |
279 | impl SeedableRng for StdRng {
    |      ^^^^^^^^^^^ the trait `rand_core::SeedableRng` is not implemented for `rand_hc::Hc128Rng`

error[E0277]: the trait bound `rand_hc::Hc128Core: rand_core::block::BlockRngCore` is not satisfied
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/thread.rs:73:5
   |
73 |     rng: *mut ReseedingRng<Hc128Core, EntropyRng>,
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `rand_core::block::BlockRngCore` is not implemented for `rand_hc::Hc128Core`
   |
note: required by `rngs::adapter::reseeding::ReseedingRng`
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/adapter/reseeding.rs:88:1
   |
88 | / pub struct ReseedingRng<R, Rsdr>(BlockRng<ReseedingCore<R, Rsdr>>)
89 | | where R: BlockRngCore + SeedableRng,
90 | |       Rsdr: RngCore;
   | |____________________^

error[E0277]: the trait bound `rand_hc::Hc128Core: rand_core::SeedableRng` is not satisfied
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/thread.rs:73:5
   |
73 |     rng: *mut ReseedingRng<Hc128Core, EntropyRng>,
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `rand_core::SeedableRng` is not implemented for `rand_hc::Hc128Core`
   |
note: required by `rngs::adapter::reseeding::ReseedingRng`
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/adapter/reseeding.rs:88:1
   |
88 | / pub struct ReseedingRng<R, Rsdr>(BlockRng<ReseedingCore<R, Rsdr>>)
89 | | where R: BlockRngCore + SeedableRng,
90 | |       Rsdr: RngCore;
   | |____________________^

error[E0277]: the trait bound `rand_hc::Hc128Core: rand_core::block::BlockRngCore` is not satisfied
   | 
  ::: <::std::thread::local::thread_local macros>:1:1
   |
1  |   / () => { } ;
2  |   | ($ (# [$ attr : meta]) * $ vis : vis static $ name : ident : $ t : ty = $ init
3  |   |  : expr ; $ ($ rest : tt) *) =>
4  |   | ($ crate :: __thread_local_inner !
...    |
9  |   | ($ crate :: __thread_local_inner !
   |  _|__-
10 | | |  ($ (# [$ attr]) * $ vis $ name , $ t , $ init) ;) ;
   | | |_________________________________________________-__- in this expansion of `thread_local!`
   | |___________________________________________________|
   |                                                     in this macro invocation
  --> <::std::thread::local::__thread_local_inner macros>:36:43
   |
1  |  /  (@ key $ (# [$ attr : meta]) * $ vis : vis $ name : ident , $ t : ty , $ init
2  |  |   : expr) =>
3  |  |  {
4  |  |      {
...   |
36 |  |      $ (# [$ attr]) * $ vis const $ name : $ crate :: thread :: LocalKey < $ t
   |  |____________________________________________^
37 | ||      > = $ crate :: __thread_local_inner !
   | ||______^ the trait `rand_core::block::BlockRngCore` is not implemented for `rand_hc::Hc128Core`
38 |  |      (@ key $ (# [$ attr]) * $ vis $ name , $ t , $ init) ;
39 |  |  }
   |  |__- in this expansion of `$crate::__thread_local_inner!`
   | 
  ::: /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/thread.rs:76:1
   |
76 | /   thread_local!(
77 | |       static THREAD_RNG_KEY: UnsafeCell<ReseedingRng<Hc128Core, EntropyRng>> = {
78 | |           let mut entropy_source = EntropyRng::new();
79 | |           let r = Hc128Core::from_rng(&mut entropy_source).unwrap_or_else(|err|
...  |
85 | |       }
86 | |   );
   | |____- in this macro invocation
   |
note: required by `rngs::adapter::reseeding::ReseedingRng`
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/adapter/reseeding.rs:88:1
   |
88 | / pub struct ReseedingRng<R, Rsdr>(BlockRng<ReseedingCore<R, Rsdr>>)
89 | | where R: BlockRngCore + SeedableRng,
90 | |       Rsdr: RngCore;
   | |____________________^

error[E0277]: the trait bound `rand_hc::Hc128Core: rand_core::SeedableRng` is not satisfied
   | 
  ::: <::std::thread::local::thread_local macros>:1:1
   |
1  |   / () => { } ;
2  |   | ($ (# [$ attr : meta]) * $ vis : vis static $ name : ident : $ t : ty = $ init
3  |   |  : expr ; $ ($ rest : tt) *) =>
4  |   | ($ crate :: __thread_local_inner !
...    |
9  |   | ($ crate :: __thread_local_inner !
   |  _|__-
10 | | |  ($ (# [$ attr]) * $ vis $ name , $ t , $ init) ;) ;
   | | |_________________________________________________-__- in this expansion of `thread_local!`
   | |___________________________________________________|
   |                                                     in this macro invocation
  --> <::std::thread::local::__thread_local_inner macros>:36:43
   |
1  |  /  (@ key $ (# [$ attr : meta]) * $ vis : vis $ name : ident , $ t : ty , $ init
2  |  |   : expr) =>
3  |  |  {
4  |  |      {
...   |
36 |  |      $ (# [$ attr]) * $ vis const $ name : $ crate :: thread :: LocalKey < $ t
   |  |____________________________________________^
37 | ||      > = $ crate :: __thread_local_inner !
   | ||______^ the trait `rand_core::SeedableRng` is not implemented for `rand_hc::Hc128Core`
38 |  |      (@ key $ (# [$ attr]) * $ vis $ name , $ t , $ init) ;
39 |  |  }
   |  |__- in this expansion of `$crate::__thread_local_inner!`
   | 
  ::: /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/thread.rs:76:1
   |
76 | /   thread_local!(
77 | |       static THREAD_RNG_KEY: UnsafeCell<ReseedingRng<Hc128Core, EntropyRng>> = {
78 | |           let mut entropy_source = EntropyRng::new();
79 | |           let r = Hc128Core::from_rng(&mut entropy_source).unwrap_or_else(|err|
...  |
85 | |       }
86 | |   );
   | |____- in this macro invocation
   |
note: required by `rngs::adapter::reseeding::ReseedingRng`
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/adapter/reseeding.rs:88:1
   |
88 | / pub struct ReseedingRng<R, Rsdr>(BlockRng<ReseedingCore<R, Rsdr>>)
89 | | where R: BlockRngCore + SeedableRng,
90 | |       Rsdr: RngCore;
   | |____________________^

error[E0277]: the trait bound `rand_hc::Hc128Core: rand_core::block::BlockRngCore` is not satisfied
  --> <::std::thread::local::__thread_local_inner macros>:5:20
   |
1  |  /   (@ key $ (# [$ attr : meta]) * $ vis : vis $ name : ident , $ t : ty , $ init
2  |  |    : expr) =>
3  |  |   {
4  |  |       {
5  |  |           # [inline] fn __init () -> $ t { $ init } unsafe fn __getit () -> $
   |  |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `rand_core::block::BlockRngCore` is not implemented for `rand_hc::Hc128Core`
...   |
37 |  |       > = $ crate :: __thread_local_inner !
   |  |___________-
38 | ||       (@ key $ (# [$ attr]) * $ vis $ name , $ t , $ init) ;
   | ||__________________________________________________________- in this macro invocation (#3)
39 |  |   }
   |  |   -
   |  |   |
   |  |___in this expansion of `$crate::__thread_local_inner!` (#2)
   |      in this expansion of `$crate::__thread_local_inner!` (#3)
   | 
  ::: <::std::thread::local::thread_local macros>:1:1
   |
1  |    / () => { } ;
2  |    | ($ (# [$ attr : meta]) * $ vis : vis static $ name : ident : $ t : ty = $ init
3  |    |  : expr ; $ ($ rest : tt) *) =>
4  |    | ($ crate :: __thread_local_inner !
...     |
9  |    | ($ crate :: __thread_local_inner !
   |  __|__-
10 | |  |  ($ (# [$ attr]) * $ vis $ name , $ t , $ init) ;) ;
   | |  |_________________________________________________-__- in this expansion of `thread_local!` (#1)
   | |____________________________________________________|
   |                                                      in this macro invocation (#2)
   | 
  ::: /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/thread.rs:76:1
   |
76 | /    thread_local!(
77 | |        static THREAD_RNG_KEY: UnsafeCell<ReseedingRng<Hc128Core, EntropyRng>> = {
78 | |            let mut entropy_source = EntropyRng::new();
79 | |            let r = Hc128Core::from_rng(&mut entropy_source).unwrap_or_else(|err|
...  |
85 | |        }
86 | |    );
   | |_____- in this macro invocation (#1)
   |
note: required by `rngs::adapter::reseeding::ReseedingRng`
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/adapter/reseeding.rs:88:1
   |
88 | / pub struct ReseedingRng<R, Rsdr>(BlockRng<ReseedingCore<R, Rsdr>>)
89 | | where R: BlockRngCore + SeedableRng,
90 | |       Rsdr: RngCore;
   | |____________________^

error[E0277]: the trait bound `rand_hc::Hc128Core: rand_core::SeedableRng` is not satisfied
  --> <::std::thread::local::__thread_local_inner macros>:5:20
   |
1  |  /   (@ key $ (# [$ attr : meta]) * $ vis : vis $ name : ident , $ t : ty , $ init
2  |  |    : expr) =>
3  |  |   {
4  |  |       {
5  |  |           # [inline] fn __init () -> $ t { $ init } unsafe fn __getit () -> $
   |  |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `rand_core::SeedableRng` is not implemented for `rand_hc::Hc128Core`
...   |
37 |  |       > = $ crate :: __thread_local_inner !
   |  |___________-
38 | ||       (@ key $ (# [$ attr]) * $ vis $ name , $ t , $ init) ;
   | ||__________________________________________________________- in this macro invocation (#3)
39 |  |   }
   |  |   -
   |  |   |
   |  |___in this expansion of `$crate::__thread_local_inner!` (#2)
   |      in this expansion of `$crate::__thread_local_inner!` (#3)
   | 
  ::: <::std::thread::local::thread_local macros>:1:1
   |
1  |    / () => { } ;
2  |    | ($ (# [$ attr : meta]) * $ vis : vis static $ name : ident : $ t : ty = $ init
3  |    |  : expr ; $ ($ rest : tt) *) =>
4  |    | ($ crate :: __thread_local_inner !
...     |
9  |    | ($ crate :: __thread_local_inner !
   |  __|__-
10 | |  |  ($ (# [$ attr]) * $ vis $ name , $ t , $ init) ;) ;
   | |  |_________________________________________________-__- in this expansion of `thread_local!` (#1)
   | |____________________________________________________|
   |                                                      in this macro invocation (#2)
   | 
  ::: /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/thread.rs:76:1
   |
76 | /    thread_local!(
77 | |        static THREAD_RNG_KEY: UnsafeCell<ReseedingRng<Hc128Core, EntropyRng>> = {
78 | |            let mut entropy_source = EntropyRng::new();
79 | |            let r = Hc128Core::from_rng(&mut entropy_source).unwrap_or_else(|err|
...  |
85 | |        }
86 | |    );
   | |_____- in this macro invocation (#1)
   |
note: required by `rngs::adapter::reseeding::ReseedingRng`
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/adapter/reseeding.rs:88:1
   |
88 | / pub struct ReseedingRng<R, Rsdr>(BlockRng<ReseedingCore<R, Rsdr>>)
89 | | where R: BlockRngCore + SeedableRng,
90 | |       Rsdr: RngCore;
   | |____________________^

error[E0277]: the trait bound `rand_hc::Hc128Core: rand_core::block::BlockRngCore` is not satisfied
   | 
  ::: <::std::thread::local::thread_local macros>:1:1
   |
1  |     / () => { } ;
2  |     | ($ (# [$ attr : meta]) * $ vis : vis static $ name : ident : $ t : ty = $ init
3  |     |  : expr ; $ ($ rest : tt) *) =>
4  |     | ($ crate :: __thread_local_inner !
...      |
9  |     | ($ crate :: __thread_local_inner !
   |  ___|__-
10 | |   |  ($ (# [$ attr]) * $ vis $ name , $ t , $ init) ;) ;
   | |   |_________________________________________________-__- in this expansion of `thread_local!` (#1)
   | |_____________________________________________________|
   |                                                       in this macro invocation (#2)
  --> <::std::thread::local::__thread_local_inner macros>:5:51
   |
1  |   /   (@ key $ (# [$ attr : meta]) * $ vis : vis $ name : ident , $ t : ty , $ init
2  |   |    : expr) =>
3  |   |   {
4  |   |       {
5  |   |           # [inline] fn __init () -> $ t { $ init } unsafe fn __getit () -> $
   |   |_____________________________________________________^
6  |  ||           crate :: option :: Option < & 'static $ t >
7  |  ||           {
8  |  ||               #
...   ||
29 |  ||               get (__init)
30 |  ||           } unsafe { $ crate :: thread :: LocalKey :: new (__getit) }
   |  ||___________^ the trait `rand_core::block::BlockRngCore` is not implemented for `rand_hc::Hc128Core`
...    |
37 |   |       > = $ crate :: __thread_local_inner !
   |  _|___________-
38 | | |       (@ key $ (# [$ attr]) * $ vis $ name , $ t , $ init) ;
   | |_|__________________________________________________________- in this macro invocation (#3)
39 |   |   }
   |   |   -
   |   |   |
   |   |___in this expansion of `$crate::__thread_local_inner!` (#2)
   |       in this expansion of `$crate::__thread_local_inner!` (#3)
   | 
  ::: /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/thread.rs:76:1
   |
76 | /     thread_local!(
77 | |         static THREAD_RNG_KEY: UnsafeCell<ReseedingRng<Hc128Core, EntropyRng>> = {
78 | |             let mut entropy_source = EntropyRng::new();
79 | |             let r = Hc128Core::from_rng(&mut entropy_source).unwrap_or_else(|err|
...  |
85 | |         }
86 | |     );
   | |______- in this macro invocation (#1)
   |
note: required by `rngs::adapter::reseeding::ReseedingRng`
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/adapter/reseeding.rs:88:1
   |
88 | / pub struct ReseedingRng<R, Rsdr>(BlockRng<ReseedingCore<R, Rsdr>>)
89 | | where R: BlockRngCore + SeedableRng,
90 | |       Rsdr: RngCore;
   | |____________________^

error[E0277]: the trait bound `rand_hc::Hc128Core: rand_core::SeedableRng` is not satisfied
   | 
  ::: <::std::thread::local::thread_local macros>:1:1
   |
1  |     / () => { } ;
2  |     | ($ (# [$ attr : meta]) * $ vis : vis static $ name : ident : $ t : ty = $ init
3  |     |  : expr ; $ ($ rest : tt) *) =>
4  |     | ($ crate :: __thread_local_inner !
...      |
9  |     | ($ crate :: __thread_local_inner !
   |  ___|__-
10 | |   |  ($ (# [$ attr]) * $ vis $ name , $ t , $ init) ;) ;
   | |   |_________________________________________________-__- in this expansion of `thread_local!` (#1)
   | |_____________________________________________________|
   |                                                       in this macro invocation (#2)
  --> <::std::thread::local::__thread_local_inner macros>:5:51
   |
1  |   /   (@ key $ (# [$ attr : meta]) * $ vis : vis $ name : ident , $ t : ty , $ init
2  |   |    : expr) =>
3  |   |   {
4  |   |       {
5  |   |           # [inline] fn __init () -> $ t { $ init } unsafe fn __getit () -> $
   |   |_____________________________________________________^
6  |  ||           crate :: option :: Option < & 'static $ t >
7  |  ||           {
8  |  ||               #
...   ||
29 |  ||               get (__init)
30 |  ||           } unsafe { $ crate :: thread :: LocalKey :: new (__getit) }
   |  ||___________^ the trait `rand_core::SeedableRng` is not implemented for `rand_hc::Hc128Core`
...    |
37 |   |       > = $ crate :: __thread_local_inner !
   |  _|___________-
38 | | |       (@ key $ (# [$ attr]) * $ vis $ name , $ t , $ init) ;
   | |_|__________________________________________________________- in this macro invocation (#3)
39 |   |   }
   |   |   -
   |   |   |
   |   |___in this expansion of `$crate::__thread_local_inner!` (#2)
   |       in this expansion of `$crate::__thread_local_inner!` (#3)
   | 
  ::: /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/thread.rs:76:1
   |
76 | /     thread_local!(
77 | |         static THREAD_RNG_KEY: UnsafeCell<ReseedingRng<Hc128Core, EntropyRng>> = {
78 | |             let mut entropy_source = EntropyRng::new();
79 | |             let r = Hc128Core::from_rng(&mut entropy_source).unwrap_or_else(|err|
...  |
85 | |         }
86 | |     );
   | |______- in this macro invocation (#1)
   |
note: required by `rngs::adapter::reseeding::ReseedingRng`
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/adapter/reseeding.rs:88:1
   |
88 | / pub struct ReseedingRng<R, Rsdr>(BlockRng<ReseedingCore<R, Rsdr>>)
89 | | where R: BlockRngCore + SeedableRng,
90 | |       Rsdr: RngCore;
   | |____________________^

error[E0277]: the trait bound `rand_hc::Hc128Core: rand_core::block::BlockRngCore` is not satisfied
   | 
  ::: <::std::thread::local::thread_local macros>:1:1
   |
1  |    / () => { } ;
2  |    | ($ (# [$ attr : meta]) * $ vis : vis static $ name : ident : $ t : ty = $ init
3  |    |  : expr ; $ ($ rest : tt) *) =>
4  |    | ($ crate :: __thread_local_inner !
...     |
9  |    | ($ crate :: __thread_local_inner !
   |  __|__-
10 | |  |  ($ (# [$ attr]) * $ vis $ name , $ t , $ init) ;) ;
   | |  |_________________________________________________-__- in this expansion of `thread_local!` (#1)
   | |____________________________________________________|
   |                                                      in this macro invocation (#2)
  --> <::std::thread::local::__thread_local_inner macros>:20:36
   |
1  |  /   (@ key $ (# [$ attr : meta]) * $ vis : vis $ name : ident , $ t : ty , $ init
2  |  |    : expr) =>
3  |  |   {
4  |  |       {
...   |
20 |  |                  ,))] static __KEY : $ crate :: thread :: __FastLocalKeyInner <
   |  |______________________________________^
21 | ||               $ t > = $ crate :: thread :: __FastLocalKeyInner :: new () ; #
   | ||___________________^ the trait `rand_core::block::BlockRngCore` is not implemented for `rand_hc::Hc128Core`
...   |
37 |  |       > = $ crate :: __thread_local_inner !
   |  |___________-
38 | ||       (@ key $ (# [$ attr]) * $ vis $ name , $ t , $ init) ;
   | ||__________________________________________________________- in this macro invocation (#3)
39 |  |   }
   |  |   -
   |  |   |
   |  |___in this expansion of `$crate::__thread_local_inner!` (#2)
   |      in this expansion of `$crate::__thread_local_inner!` (#3)
   | 
  ::: /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/thread.rs:76:1
   |
76 | /    thread_local!(
77 | |        static THREAD_RNG_KEY: UnsafeCell<ReseedingRng<Hc128Core, EntropyRng>> = {
78 | |            let mut entropy_source = EntropyRng::new();
79 | |            let r = Hc128Core::from_rng(&mut entropy_source).unwrap_or_else(|err|
...  |
85 | |        }
86 | |    );
   | |_____- in this macro invocation (#1)
   |
note: required by `rngs::adapter::reseeding::ReseedingRng`
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/adapter/reseeding.rs:88:1
   |
88 | / pub struct ReseedingRng<R, Rsdr>(BlockRng<ReseedingCore<R, Rsdr>>)
89 | | where R: BlockRngCore + SeedableRng,
90 | |       Rsdr: RngCore;
   | |____________________^

error[E0277]: the trait bound `rand_hc::Hc128Core: rand_core::SeedableRng` is not satisfied
   | 
  ::: <::std::thread::local::thread_local macros>:1:1
   |
1  |    / () => { } ;
2  |    | ($ (# [$ attr : meta]) * $ vis : vis static $ name : ident : $ t : ty = $ init
3  |    |  : expr ; $ ($ rest : tt) *) =>
4  |    | ($ crate :: __thread_local_inner !
...     |
9  |    | ($ crate :: __thread_local_inner !
   |  __|__-
10 | |  |  ($ (# [$ attr]) * $ vis $ name , $ t , $ init) ;) ;
   | |  |_________________________________________________-__- in this expansion of `thread_local!` (#1)
   | |____________________________________________________|
   |                                                      in this macro invocation (#2)
  --> <::std::thread::local::__thread_local_inner macros>:20:36
   |
1  |  /   (@ key $ (# [$ attr : meta]) * $ vis : vis $ name : ident , $ t : ty , $ init
2  |  |    : expr) =>
3  |  |   {
4  |  |       {
...   |
20 |  |                  ,))] static __KEY : $ crate :: thread :: __FastLocalKeyInner <
   |  |______________________________________^
21 | ||               $ t > = $ crate :: thread :: __FastLocalKeyInner :: new () ; #
   | ||___________________^ the trait `rand_core::SeedableRng` is not implemented for `rand_hc::Hc128Core`
...   |
37 |  |       > = $ crate :: __thread_local_inner !
   |  |___________-
38 | ||       (@ key $ (# [$ attr]) * $ vis $ name , $ t , $ init) ;
   | ||__________________________________________________________- in this macro invocation (#3)
39 |  |   }
   |  |   -
   |  |   |
   |  |___in this expansion of `$crate::__thread_local_inner!` (#2)
   |      in this expansion of `$crate::__thread_local_inner!` (#3)
   | 
  ::: /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/thread.rs:76:1
   |
76 | /    thread_local!(
77 | |        static THREAD_RNG_KEY: UnsafeCell<ReseedingRng<Hc128Core, EntropyRng>> = {
78 | |            let mut entropy_source = EntropyRng::new();
79 | |            let r = Hc128Core::from_rng(&mut entropy_source).unwrap_or_else(|err|
...  |
85 | |        }
86 | |    );
   | |_____- in this macro invocation (#1)
   |
note: required by `rngs::adapter::reseeding::ReseedingRng`
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/adapter/reseeding.rs:88:1
   |
88 | / pub struct ReseedingRng<R, Rsdr>(BlockRng<ReseedingCore<R, Rsdr>>)
89 | | where R: BlockRngCore + SeedableRng,
90 | |       Rsdr: RngCore;
   | |____________________^

error[E0277]: the trait bound `rand_pcg::Mcg128Xsl64: rand_core::SeedableRng` is not satisfied
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/small.rs:97:5
   |
97 |     type Seed = <Rng as SeedableRng>::Seed;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `rand_core::SeedableRng` is not implemented for `rand_pcg::Mcg128Xsl64`

error[E0277]: the trait bound `rand_pcg::Mcg128Xsl64: rand_core::SeedableRng` is not satisfied
   --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/small.rs:99:5
    |
99  | /     fn from_seed(seed: Self::Seed) -> Self {
100 | |         SmallRng(Rng::from_seed(seed))
101 | |     }
    | |_____^ the trait `rand_core::SeedableRng` is not implemented for `rand_pcg::Mcg128Xsl64`

error[E0277]: the trait bound `rand_hc::Hc128Rng: rand_core::SeedableRng` is not satisfied
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/std.rs:56:5
   |
56 |     type Seed = <Hc128Rng as SeedableRng>::Seed;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `rand_core::SeedableRng` is not implemented for `rand_hc::Hc128Rng`

error[E0277]: the trait bound `rand_hc::Hc128Rng: rand_core::SeedableRng` is not satisfied
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/rngs/std.rs:58:5
   |
58 | /     fn from_seed(seed: Self::Seed) -> Self {
59 | |         StdRng(Hc128Rng::from_seed(seed))
60 | |     }
   | |_____^ the trait `rand_core::SeedableRng` is not implemented for `rand_hc::Hc128Rng`

error[E0277]: the trait bound `rand_isaac::IsaacRng: rand_core::SeedableRng` is not satisfied
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/deprecated.rs:51:5
   |
51 |     type Seed = <rand_isaac::IsaacRng as SeedableRng>::Seed;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `rand_core::SeedableRng` is not implemented for `rand_isaac::IsaacRng`

error[E0277]: the trait bound `rand_isaac::IsaacRng: rand_core::SeedableRng` is not satisfied
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/deprecated.rs:53:5
   |
53 | /     fn from_seed(seed: Self::Seed) -> Self {
54 | |         IsaacRng(rand_isaac::IsaacRng::from_seed(seed))
55 | |     }
   | |_____^ the trait `rand_core::SeedableRng` is not implemented for `rand_isaac::IsaacRng`

error[E0277]: the trait bound `rand_isaac::Isaac64Rng: rand_core::SeedableRng` is not satisfied
  --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/deprecated.rs:97:5
   |
97 |     type Seed = <rand_isaac::Isaac64Rng as SeedableRng>::Seed;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `rand_core::SeedableRng` is not implemented for `rand_isaac::Isaac64Rng`

error[E0277]: the trait bound `rand_isaac::Isaac64Rng: rand_core::SeedableRng` is not satisfied
   --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/deprecated.rs:99:5
    |
99  | /     fn from_seed(seed: Self::Seed) -> Self {
100 | |         Isaac64Rng(rand_isaac::Isaac64Rng::from_seed(seed))
101 | |     }
    | |_____^ the trait `rand_core::SeedableRng` is not implemented for `rand_isaac::Isaac64Rng`

error[E0277]: the trait bound `rand_chacha::ChaChaRng: rand_core::SeedableRng` is not satisfied
   --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/deprecated.rs:142:5
    |
142 |     type Seed = <rand_chacha::ChaChaRng as SeedableRng>::Seed;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `rand_core::SeedableRng` is not implemented for `rand_chacha::ChaChaRng`

error[E0277]: the trait bound `rand_chacha::ChaChaRng: rand_core::SeedableRng` is not satisfied
   --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/deprecated.rs:144:5
    |
144 | /     fn from_seed(seed: Self::Seed) -> Self {
145 | |         ChaChaRng(rand_chacha::ChaChaRng::from_seed(seed))
146 | |     }
    | |_____^ the trait `rand_core::SeedableRng` is not implemented for `rand_chacha::ChaChaRng`

error[E0277]: the trait bound `rand_hc::Hc128Rng: rand_core::SeedableRng` is not satisfied
   --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/deprecated.rs:199:5
    |
199 |     type Seed = <rand_hc::Hc128Rng as SeedableRng>::Seed;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `rand_core::SeedableRng` is not implemented for `rand_hc::Hc128Rng`

error[E0277]: the trait bound `rand_hc::Hc128Rng: rand_core::SeedableRng` is not satisfied
   --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/deprecated.rs:201:5
    |
201 | /     fn from_seed(seed: Self::Seed) -> Self {
202 | |         Hc128Rng(rand_hc::Hc128Rng::from_seed(seed))
203 | |     }
    | |_____^ the trait `rand_core::SeedableRng` is not implemented for `rand_hc::Hc128Rng`

error[E0277]: the trait bound `rand_xorshift::XorShiftRng: rand_core::SeedableRng` is not satisfied
   --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/deprecated.rs:240:5
    |
240 |     type Seed = <::rand_xorshift::XorShiftRng as SeedableRng>::Seed;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `rand_core::SeedableRng` is not implemented for `rand_xorshift::XorShiftRng`

error[E0277]: the trait bound `rand_xorshift::XorShiftRng: rand_core::SeedableRng` is not satisfied
   --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/deprecated.rs:242:5
    |
242 | /     fn from_seed(seed: Self::Seed) -> Self {
243 | |         XorShiftRng(::rand_xorshift::XorShiftRng::from_seed(seed))
244 | |     }
    | |_____^ the trait `rand_core::SeedableRng` is not implemented for `rand_xorshift::XorShiftRng`

error[E0277]: the trait bound `rand_hc::Hc128Rng: rand_core::SeedableRng` is not satisfied
   --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/deprecated.rs:280:5
    |
280 |     type Seed = <rngs::StdRng as SeedableRng>::Seed;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `rand_core::SeedableRng` is not implemented for `rand_hc::Hc128Rng`

error[E0277]: the trait bound `rand_hc::Hc128Rng: rand_core::SeedableRng` is not satisfied
   --> /home/r/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.5/src/deprecated.rs:282:5
    |
282 | /     fn from_seed(seed: Self::Seed) -> Self {
283 | |         StdRng(rngs::StdRng::from_seed(seed))
284 | |     }
    | |_____^ the trait `rand_core::SeedableRng` is not implemented for `rand_hc::Hc128Rng`

error: aborting due to 34 previous errors

[dhardy]

@RalfJung that's a known issue; you must update rand_core to at least 0.3.1 at the same time. Unfortunately fixing it now would cause breakage for no_std users IIRC.

[mati865]

The issue with upgrading to rand 0.6.5 is described in rust-random/rand#852
rand_os is no_std crate using libc with default features. Why does it matter?
C library is linked by std or libc without default features leaving rand_os with undefined references when building Rust (and probably some no_std crates), see #61393.
getrandom had the same issue so I updated it in #63806 (I'll update it again tomorrow morning CEST) and this time it worked in local build.