Failed to build: error[E0554]: #![feature] may not be used on the stable release channel

[marek22k]

$cargo build
  Downloaded bitflags v1.2.1
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  Downloaded rmp-serde v1.0.0
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  Downloaded tor v0.1.0
  Downloaded bech32 v0.7.3
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  Downloaded autocfg v0.1.7
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  Downloaded smallvec v1.8.0
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  Downloaded futures-task v0.3.21
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  Downloaded failure_derive v0.1.8
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  Downloaded bitcoin v0.25.2
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  Downloaded bitcoin v0.27.1
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  Downloaded tokio v1.17.0
  Downloaded gimli v0.26.1
  Downloaded libc v0.2.119
  Downloaded libsqlite3-sys v0.24.1
  Downloaded 99 crates (11.9 MB) in 3.90s (largest was `libsqlite3-sys` at 4.8 MB)
   Compiling libc v0.2.119
   Compiling proc-macro2 v1.0.36
   Compiling unicode-xid v0.2.1
   Compiling cfg-if v1.0.0
   Compiling syn v1.0.86
   Compiling autocfg v1.0.1
   Compiling version_check v0.9.4
   Compiling cc v1.0.73
   Compiling memchr v2.4.1
   Compiling typenum v1.15.0
   Compiling autocfg v0.1.7
   Compiling rand_core v0.4.2
   Compiling serde_derive v1.0.136
   Compiling serde v1.0.136
   Compiling once_cell v1.10.0
   Compiling log v0.4.14
   Compiling ryu v1.0.5
   Compiling futures-core v0.3.21
   Compiling futures-channel v0.3.21
   Compiling serde_json v1.0.79
   Compiling futures-task v0.3.21
   Compiling itoa v1.0.1
   Compiling pin-project-lite v0.2.8
   Compiling futures-sink v0.3.21
   Compiling cpufeatures v0.2.1
   Compiling smallvec v1.8.0
   Compiling gimli v0.26.1
   Compiling parking_lot_core v0.9.1
   Compiling failure_derive v0.1.8
   Compiling futures-util v0.3.21
   Compiling adler v1.0.2
   Compiling byteorder v1.4.3
   Compiling scopeguard v1.1.0
   Compiling bitflags v1.2.1
   Compiling vcpkg v0.2.15
   Compiling futures-io v0.3.21
   Compiling rustc-demangle v0.1.21
   Compiling pin-utils v0.1.0
   Compiling pkg-config v0.3.24
   Compiling opaque-debug v0.3.0
   Compiling slab v0.4.2
   Compiling bech32 v0.7.3
   Compiling base64 v0.13.0
   Compiling bitcoin_hashes v0.9.7
   Compiling hex v0.4.3
   Compiling async-trait v0.1.52
   Compiling nom v2.2.1
   Compiling ppv-lite86 v0.2.16
   Compiling bytes v1.1.0
   Compiling lazy_static v1.4.0
   Compiling either v1.6.1
   Compiling fallible-streaming-iterator v0.1.9
   Compiling bitcoin_hashes v0.10.0
   Compiling fallible-iterator v0.2.0
   Compiling regex-syntax v0.6.25
   Compiling strsim v0.10.0
   Compiling bech32 v0.8.1
   Compiling termcolor v1.1.3
   Compiling tor v0.1.0
   Compiling textwrap v0.15.0
   Compiling generic-array v0.14.5
   Compiling ahash v0.7.6
   Compiling num-traits v0.2.14
   Compiling miniz_oxide v0.4.4
   Compiling num-integer v0.1.44
   Compiling indexmap v1.8.0
   Compiling num-bigint v0.4.3
   Compiling rand_core v0.3.1
   Compiling rand_jitter v0.1.4
   Compiling rand_chacha v0.1.1
   Compiling rand_pcg v0.1.2
   Compiling rand v0.6.5
   Compiling lock_api v0.4.6
   Compiling secp256k1-sys v0.3.0
   Compiling backtrace v0.3.64
   Compiling secp256k1-sys v0.4.2
   Compiling koibumi-base32 v0.0.2
   Compiling itertools v0.10.3
   Compiling libsqlite3-sys v0.24.1
   Compiling addr2line v0.17.0
   Compiling rand_xorshift v0.1.1
   Compiling rand_hc v0.1.0
   Compiling rand_isaac v0.1.1
   Compiling object v0.27.1
   Compiling aho-corasick v0.7.18
   Compiling os_str_bytes v6.0.0
   Compiling quote v1.0.7
   Compiling getrandom v0.2.5
   Compiling rand_os v0.1.3
   Compiling rand v0.4.6
   Compiling signal-hook-registry v1.2.2
   Compiling socket2 v0.4.4
   Compiling num_cpus v1.13.0
   Compiling atty v0.2.14
   Compiling time v0.1.44
   Compiling log v0.3.9
   Compiling mio v0.8.0
   Compiling rand_core v0.6.3
   Compiling regex v1.5.5
   Compiling parking_lot v0.12.0
   Compiling rand v0.3.23
   Compiling rmp v0.8.10
   Compiling hashbrown v0.11.2
   Compiling rand_chacha v0.3.1
   Compiling block-buffer v0.9.0
   Compiling digest v0.9.0
   Compiling block-buffer v0.10.2
   Compiling crypto-common v0.1.3
   Compiling secp256k1 v0.20.3
   Compiling i2p v0.0.1
   Compiling rmpv v1.0.0
   Compiling chrono v0.4.19
   Compiling rand v0.8.5
   Compiling sha2 v0.9.9
   Compiling ripemd160 v0.9.1
   Compiling secp256k1 v0.19.0
   Compiling hashlink v0.7.0
   Compiling digest v0.10.3
   Compiling bitcoin v0.27.1
   Compiling synstructure v0.12.6
   Compiling bitcoin v0.25.2
   Compiling sha2 v0.10.2
   Compiling sha1 v0.10.1
   Compiling clap v3.1.6
   Compiling thiserror-impl v1.0.22
   Compiling futures-macro v0.3.21
   Compiling tokio-macros v1.7.0
   Compiling async-recursion v1.0.0
   Compiling failure v0.1.8
   Compiling tokio v1.17.0
   Compiling thiserror v1.0.22
   Compiling zeronet_cryptography v0.2.0 (/home/bandura/Downloads/zeronet-rs/zeronet_cryptography)
   Compiling futures-executor v0.3.21
   Compiling futures v0.3.21
   Compiling serde_bytes v0.11.5
   Compiling rmp-serde v1.0.0
   Compiling bincode v1.3.3
   Compiling json_filter_sorted v0.1.1 (/home/bandura/Downloads/zeronet-rs/json_filter_sorted)
   Compiling rusqlite v0.27.0
   Compiling zeronet_protocol v0.1.9 (/home/bandura/Downloads/zeronet-rs/zeronet_protocol)
   Compiling zerucontent v0.1.0 (/home/bandura/Downloads/zeronet-rs/zerucontent)
   Compiling zeronet v0.1.0 (/home/bandura/Downloads/zeronet-rs)
warning: unused import: `protocol::Protocol`
  --> src/main.rs:20:5
   |
20 |     protocol::Protocol,
   |     ^^^^^^^^^^^^^^^^^^
   |
   = note: `#[warn(unused_imports)]` on by default

error[E0554]: `#![feature]` may not be used on the stable release channel
 --> src/main.rs:1:12
  |
1 | #![feature(drain_filter)]
  |            ^^^^^^^^^^^^

For more information about this error, try `rustc --explain E0554`.
warning: `zeronet` (bin "zeronet") generated 1 warning
error: could not compile `zeronet` due to previous error; 1 warning emitted

$cargo --version
cargo 1.59.0 (49d8809dc 2022-02-10)

[marek22k]

solved, https://stackoverflow.com/questions/53136717/errore0554-feature-may-not-be-used-on-the-stable-release-channel-couldnt, maybe add a hint how to build

[canewsin]

need nightly compiler to build, will add it build section.