I broke it already (Rust)

Cargo.lock

# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "fuchsia-cprng"
version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"

[[package]]
name = "guessing_game"
version = "0.1.0"
dependencies = [
 "rand 0.3.23 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "libc"
version = "0.2.65"
source = "registry+https://github.com/rust-lang/crates.io-index"

[[package]]
name = "rand"
version = "0.3.23"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
 "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
 "rand 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "rand"
version = "0.4.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
 "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
 "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "rand_core"
version = "0.3.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
 "rand_core 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "rand_core"
version = "0.4.2"
source = "registry+https://github.com/rust-lang/crates.io-index"

[[package]]
name = "rdrand"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
 "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "winapi"
version = "0.3.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
 "winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "winapi-i686-pc-windows-gnu"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"

[[package]]
name = "winapi-x86_64-pc-windows-gnu"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"

[metadata]
"checksum fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "a06f77d526c1a601b7c4cdd98f54b5eaabffc14d5f2f0296febdc7f357c6d3ba"
"checksum libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)" = "1a31a0627fdf1f6a39ec0dd577e101440b7db22672c0901fe00a9a6fbb5c24e8"
"checksum rand 0.3.23 (registry+https://github.com/rust-lang/crates.io-index)" = "64ac302d8f83c0c1974bf758f6b041c6c8ada916fbb44a609158ca8b064cc76c"
"checksum rand 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "552840b97013b1a26992c11eac34bdd778e464601a4c2054b5f0bff7c6761293"
"checksum rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6fdeb83b075e8266dcc8762c22776f6877a63111121f5f8c7411e5be7eed4b"
"checksum rand_core 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9c33a3c44ca05fa6f1807d8e6743f3824e8509beca625669633be0acbdf509dc"
"checksum rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "678054eb77286b51581ba43620cc911abf02758c91f93f479767aed0f90458b2"
"checksum winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6"
"checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"

Cargo.toml

[package]                                                                                                                   
name = "guessing_game"                                                                                                      
version = "0.1.0"                                                                                                           
authors = ["yyyyyyy <xxxxxx>"]                                                                        
edition = "2018"                                                                                                            
                                                                                                                            
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html                            
                                                                                                                            
[dependencies]                                                                                                              
                                                                                                                            
rand = "0.3.14"