[INFO] cloning repository https://github.com/redox-os/redox-ssh
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/redox-os/redox-ssh" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredox-os%2Fredox-ssh", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredox-os%2Fredox-ssh'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8cf8b6073ff9aeb9a6c82b7b3a1427fbaa7c2fbc
[INFO] checking redox-os/redox-ssh against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredox-os%2Fredox-ssh" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/redox-os/redox-ssh on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/redox-os/redox-ssh
[INFO] finished tweaking git repo https://github.com/redox-os/redox-ssh
[INFO] tweaked toml for git repo https://github.com/redox-os/redox-ssh written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/redox-os/redox-ssh already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/rust-num/num`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d9895587fda470b8756e5665d1b2eae9497f9f01fd7860c377fd93f49a6695e9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d9895587fda470b8756e5665d1b2eae9497f9f01fd7860c377fd93f49a6695e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9895587fda470b8756e5665d1b2eae9497f9f01fd7860c377fd93f49a6695e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9895587fda470b8756e5665d1b2eae9497f9f01fd7860c377fd93f49a6695e9", kill_on_drop: false }`
[INFO] [stdout] d9895587fda470b8756e5665d1b2eae9497f9f01fd7860c377fd93f49a6695e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d44d7d01ff4fc91adc20cb69030265f747ff33736f0f561619574b94a24fd2d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9d44d7d01ff4fc91adc20cb69030265f747ff33736f0f561619574b94a24fd2d", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.26
[INFO] [stderr]     Checking num-traits v0.1.39 (https://github.com/rust-num/num#d159ed63)
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking num-integer v0.1.34 (https://github.com/rust-num/num#d159ed63)
[INFO] [stderr]     Checking num-bigint v0.1.39 (https://github.com/rust-num/num#d159ed63)
[INFO] [stderr]     Checking redox-ssh v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:20:53
[INFO] [stdout]    |
[INFO] [stdout] 20 |         write!(f, "connection error: {}", (self as &Error).description())
[INFO] [stdout]    |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/algorithm.rs:60:42
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn instance(&self) -> Option<Box<KeyExchange>> {
[INFO] [stdout]    |                                          ^^^^^^^^^^^ help: use `dyn`: `dyn KeyExchange`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/message.rs:47:15
[INFO] [stdout]    |
[INFO] [stdout] 47 |             30...49 => KeyExchange(id),
[INFO] [stdout]    |               ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/message.rs:52:15
[INFO] [stdout]    |
[INFO] [stdout] 52 |             60...79 => UserAuth(id),
[INFO] [stdout]    |               ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connection.rs:38:30
[INFO] [stdout]    |
[INFO] [stdout] 38 |     key_exchange: Option<Box<KeyExchange>>,
[INFO] [stdout]    |                              ^^^^^^^^^^^ help: use `dyn`: `dyn KeyExchange`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connection.rs:40:29
[INFO] [stdout]    |
[INFO] [stdout] 40 |     encryption: Option<(Box<Encryption>, Box<Encryption>)>,
[INFO] [stdout]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Encryption`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connection.rs:40:46
[INFO] [stdout]    |
[INFO] [stdout] 40 |     encryption: Option<(Box<Encryption>, Box<Encryption>)>,
[INFO] [stdout]    |                                              ^^^^^^^^^^ help: use `dyn`: `dyn Encryption`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connection.rs:41:22
[INFO] [stdout]    |
[INFO] [stdout] 41 |     mac: Option<(Box<MacAlgorithm>, Box<MacAlgorithm>)>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^ help: use `dyn`: `dyn MacAlgorithm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connection.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     mac: Option<(Box<MacAlgorithm>, Box<MacAlgorithm>)>,
[INFO] [stdout]    |                                         ^^^^^^^^^^^^ help: use `dyn`: `dyn MacAlgorithm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connection.rs:87:41
[INFO] [stdout]    |
[INFO] [stdout] 87 |     fn recv(&mut self, mut stream: &mut Read) -> Result<Packet> {
[INFO] [stdout]    |                                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/connection.rs:116:41
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn send(&mut self, mut stream: &mut Write, packet: Packet)
[INFO] [stdout]     |                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/connection.rs:144:40
[INFO] [stdout]     |
[INFO] [stdout] 144 |     fn send_id(&mut self, stream: &mut Write) -> io::Result<()> {
[INFO] [stdout]     |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/connection.rs:157:40
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn read_id(&mut self, stream: &mut Read) -> io::Result<()> {
[INFO] [stdout]     |                                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]    --> src/connection.rs:406:20
[INFO] [stdout]     |
[INFO] [stdout] 406 |         use rand::{self, Rng};
[INFO] [stdout]     |                    ^^^^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/lib.rs:2:1
[INFO] [stdout]     |
[INFO] [stdout] 2   | extern crate rand;
[INFO] [stdout]     | ------------------ the item `rand` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/encryption/aes_ctr.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 |     cipher: Box<SynchronousStreamCipher + 'static>,
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SynchronousStreamCipher + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/encryption/mod.rs:13:25
[INFO] [stdout]    |
[INFO] [stdout] 13 |     encryption: &'a mut Encryption,
[INFO] [stdout]    |                         ^^^^^^^^^^ help: use `dyn`: `dyn Encryption`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/encryption/mod.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     stream: &'a mut Read,
[INFO] [stdout]    |                     ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/encryption/mod.rs:18:36
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(encryption: &'a mut Encryption, stream: &'a mut Read)
[INFO] [stdout]    |                                    ^^^^^^^^^^ help: use `dyn`: `dyn Encryption`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/encryption/mod.rs:18:64
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(encryption: &'a mut Encryption, stream: &'a mut Read)
[INFO] [stdout]    |                                                                ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/ed25519.rs:21:40
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn generate(_: Option<u32>) -> Box<KeyPair> {
[INFO] [stdout]    |                                        ^^^^^^^ help: use `dyn`: `dyn KeyPair`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/ed25519.rs:33:27
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn import(mut r: &mut Read) -> io::Result<Box<KeyPair>> {
[INFO] [stdout]    |                           ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/ed25519.rs:33:51
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn import(mut r: &mut Read) -> io::Result<Box<KeyPair>> {
[INFO] [stdout]    |                                                   ^^^^^^^ help: use `dyn`: `dyn KeyPair`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/ed25519.rs:60:32
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn read_public(mut r: &mut Read) -> io::Result<Box<KeyPair>> {
[INFO] [stdout]    |                                ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/ed25519.rs:60:56
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn read_public(mut r: &mut Read) -> io::Result<Box<KeyPair>> {
[INFO] [stdout]    |                                                        ^^^^^^^ help: use `dyn`: `dyn KeyPair`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/public_key/ed25519.rs:115:36
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn write_public(&self, w: &mut Write) -> io::Result<()> {
[INFO] [stdout]     |                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/public_key/ed25519.rs:121:30
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn export(&self, w: &mut Write) -> io::Result<()> {
[INFO] [stdout]     |                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/mod.rs:18:36
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn write_public(&self, w: &mut Write) -> io::Result<()>;
[INFO] [stdout]    |                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/mod.rs:19:30
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn export(&self, w: &mut Write) -> io::Result<()>;
[INFO] [stdout]    |                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/mod.rs:24:57
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub generate_key_pair: fn(bits: Option<u32>) -> Box<KeyPair>,
[INFO] [stdout]    |                                                         ^^^^^^^ help: use `dyn`: `dyn KeyPair`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/mod.rs:25:28
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub import: fn(r: &mut Read) -> io::Result<Box<KeyPair>>,
[INFO] [stdout]    |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/mod.rs:25:52
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub import: fn(r: &mut Read) -> io::Result<Box<KeyPair>>,
[INFO] [stdout]    |                                                    ^^^^^^^ help: use `dyn`: `dyn KeyPair`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/mod.rs:26:33
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub read_public: fn(r: &mut Read) -> io::Result<Box<KeyPair>>,
[INFO] [stdout]    |                                 ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/mod.rs:26:57
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub read_public: fn(r: &mut Read) -> io::Result<Box<KeyPair>>,
[INFO] [stdout]    |                                                         ^^^^^^^ help: use `dyn`: `dyn KeyPair`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub key: Box<KeyPair>,
[INFO] [stdout]    |                  ^^^^^^^ help: use `dyn`: `dyn KeyPair`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/sys/unix.rs:6:9
[INFO] [stdout]    |
[INFO] [stdout] 6  |     use libc;
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate libc;
[INFO] [stdout]    | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/sys/unix.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     use libc;
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate libc;
[INFO] [stdout]    | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/sys/unix.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     use libc;
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate libc;
[INFO] [stdout]    | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/sys/unix.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     use libc;
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate libc;
[INFO] [stdout]    | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:20:60
[INFO] [stdout]    |
[INFO] [stdout] 20 |         write!(f, "connection error: {}", (self as &Error).description())
[INFO] [stdout]    |                                                            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:20:53
[INFO] [stdout]    |
[INFO] [stdout] 20 |         write!(f, "connection error: {}", (self as &Error).description())
[INFO] [stdout]    |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/algorithm.rs:60:42
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn instance(&self) -> Option<Box<KeyExchange>> {
[INFO] [stdout]    |                                          ^^^^^^^^^^^ help: use `dyn`: `dyn KeyExchange`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/message.rs:47:15
[INFO] [stdout]    |
[INFO] [stdout] 47 |             30...49 => KeyExchange(id),
[INFO] [stdout]    |               ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/message.rs:52:15
[INFO] [stdout]    |
[INFO] [stdout] 52 |             60...79 => UserAuth(id),
[INFO] [stdout]    |               ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connection.rs:38:30
[INFO] [stdout]    |
[INFO] [stdout] 38 |     key_exchange: Option<Box<KeyExchange>>,
[INFO] [stdout]    |                              ^^^^^^^^^^^ help: use `dyn`: `dyn KeyExchange`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connection.rs:40:29
[INFO] [stdout]    |
[INFO] [stdout] 40 |     encryption: Option<(Box<Encryption>, Box<Encryption>)>,
[INFO] [stdout]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Encryption`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connection.rs:40:46
[INFO] [stdout]    |
[INFO] [stdout] 40 |     encryption: Option<(Box<Encryption>, Box<Encryption>)>,
[INFO] [stdout]    |                                              ^^^^^^^^^^ help: use `dyn`: `dyn Encryption`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connection.rs:41:22
[INFO] [stdout]    |
[INFO] [stdout] 41 |     mac: Option<(Box<MacAlgorithm>, Box<MacAlgorithm>)>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^ help: use `dyn`: `dyn MacAlgorithm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connection.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     mac: Option<(Box<MacAlgorithm>, Box<MacAlgorithm>)>,
[INFO] [stdout]    |                                         ^^^^^^^^^^^^ help: use `dyn`: `dyn MacAlgorithm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connection.rs:87:41
[INFO] [stdout]    |
[INFO] [stdout] 87 |     fn recv(&mut self, mut stream: &mut Read) -> Result<Packet> {
[INFO] [stdout]    |                                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/connection.rs:116:41
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn send(&mut self, mut stream: &mut Write, packet: Packet)
[INFO] [stdout]     |                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/connection.rs:144:40
[INFO] [stdout]     |
[INFO] [stdout] 144 |     fn send_id(&mut self, stream: &mut Write) -> io::Result<()> {
[INFO] [stdout]     |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/connection.rs:157:40
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn read_id(&mut self, stream: &mut Read) -> io::Result<()> {
[INFO] [stdout]     |                                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]    --> src/connection.rs:406:20
[INFO] [stdout]     |
[INFO] [stdout] 406 |         use rand::{self, Rng};
[INFO] [stdout]     |                    ^^^^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/lib.rs:2:1
[INFO] [stdout]     |
[INFO] [stdout] 2   | extern crate rand;
[INFO] [stdout]     | ------------------ the item `rand` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/encryption/aes_ctr.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 |     cipher: Box<SynchronousStreamCipher + 'static>,
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SynchronousStreamCipher + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/encryption/mod.rs:13:25
[INFO] [stdout]    |
[INFO] [stdout] 13 |     encryption: &'a mut Encryption,
[INFO] [stdout]    |                         ^^^^^^^^^^ help: use `dyn`: `dyn Encryption`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/encryption/mod.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     stream: &'a mut Read,
[INFO] [stdout]    |                     ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/encryption/mod.rs:18:36
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(encryption: &'a mut Encryption, stream: &'a mut Read)
[INFO] [stdout]    |                                    ^^^^^^^^^^ help: use `dyn`: `dyn Encryption`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/encryption/mod.rs:18:64
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(encryption: &'a mut Encryption, stream: &'a mut Read)
[INFO] [stdout]    |                                                                ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/ed25519.rs:21:40
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn generate(_: Option<u32>) -> Box<KeyPair> {
[INFO] [stdout]    |                                        ^^^^^^^ help: use `dyn`: `dyn KeyPair`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/ed25519.rs:33:27
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn import(mut r: &mut Read) -> io::Result<Box<KeyPair>> {
[INFO] [stdout]    |                           ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/ed25519.rs:33:51
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn import(mut r: &mut Read) -> io::Result<Box<KeyPair>> {
[INFO] [stdout]    |                                                   ^^^^^^^ help: use `dyn`: `dyn KeyPair`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/ed25519.rs:60:32
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn read_public(mut r: &mut Read) -> io::Result<Box<KeyPair>> {
[INFO] [stdout]    |                                ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/ed25519.rs:60:56
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn read_public(mut r: &mut Read) -> io::Result<Box<KeyPair>> {
[INFO] [stdout]    |                                                        ^^^^^^^ help: use `dyn`: `dyn KeyPair`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/public_key/ed25519.rs:115:36
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn write_public(&self, w: &mut Write) -> io::Result<()> {
[INFO] [stdout]     |                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/public_key/ed25519.rs:121:30
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn export(&self, w: &mut Write) -> io::Result<()> {
[INFO] [stdout]     |                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/mod.rs:18:36
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn write_public(&self, w: &mut Write) -> io::Result<()>;
[INFO] [stdout]    |                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/mod.rs:19:30
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn export(&self, w: &mut Write) -> io::Result<()>;
[INFO] [stdout]    |                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/mod.rs:24:57
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub generate_key_pair: fn(bits: Option<u32>) -> Box<KeyPair>,
[INFO] [stdout]    |                                                         ^^^^^^^ help: use `dyn`: `dyn KeyPair`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/mod.rs:25:28
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub import: fn(r: &mut Read) -> io::Result<Box<KeyPair>>,
[INFO] [stdout]    |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/mod.rs:25:52
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub import: fn(r: &mut Read) -> io::Result<Box<KeyPair>>,
[INFO] [stdout]    |                                                    ^^^^^^^ help: use `dyn`: `dyn KeyPair`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/mod.rs:26:33
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub read_public: fn(r: &mut Read) -> io::Result<Box<KeyPair>>,
[INFO] [stdout]    |                                 ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/public_key/mod.rs:26:57
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub read_public: fn(r: &mut Read) -> io::Result<Box<KeyPair>>,
[INFO] [stdout]    |                                                         ^^^^^^^ help: use `dyn`: `dyn KeyPair`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub key: Box<KeyPair>,
[INFO] [stdout]    |                  ^^^^^^^ help: use `dyn`: `dyn KeyPair`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/sys/unix.rs:6:9
[INFO] [stdout]    |
[INFO] [stdout] 6  |     use libc;
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate libc;
[INFO] [stdout]    | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/sys/unix.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     use libc;
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate libc;
[INFO] [stdout]    | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/sys/unix.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     use libc;
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate libc;
[INFO] [stdout]    | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/sys/unix.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     use libc;
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate libc;
[INFO] [stdout]    | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::os::unix::process::CommandExt::before_exec`: should be unsafe, use `pre_exec` instead
[INFO] [stdout]    --> src/channel.rs:146:26
[INFO] [stdout]     |
[INFO] [stdout] 146 |                         .before_exec(|| sys::before_exec())
[INFO] [stdout]     |                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/server.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 28 | /         loop {
[INFO] [stdout] 29 | |             let (mut stream, addr) = listener.accept()?;
[INFO] [stdout] 30 | |             let config = self.config.clone();
[INFO] [stdout] 31 | |
[INFO] [stdout] ...  |
[INFO] [stdout] 43 | |             });
[INFO] [stdout] 44 | |         }
[INFO] [stdout]    | |_________- any code following this expression is unreachable
[INFO] [stdout] 45 | 
[INFO] [stdout] 46 |           Ok(())
[INFO] [stdout]    |           ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:20:60
[INFO] [stdout]    |
[INFO] [stdout] 20 |         write!(f, "connection error: {}", (self as &Error).description())
[INFO] [stdout]    |                                                            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/key_exchange/curve25519.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |                     _ => return KexResult::Error,
[INFO] [stdout]    |                     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/connection.rs:177:43
[INFO] [stdout]     |
[INFO] [stdout] 177 |     fn generate_key(&mut self, id: &[u8], len: usize) -> Result<Vec<u8>> {
[INFO] [stdout]     |                                           ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `packet`
[INFO] [stdout]    --> src/connection.rs:217:28
[INFO] [stdout]     |
[INFO] [stdout] 217 |     fn new_keys(&mut self, packet: Packet) -> Result<Option<Packet>> {
[INFO] [stdout]     |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_packet`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `channel_type`
[INFO] [stdout]    --> src/connection.rs:287:13
[INFO] [stdout]     |
[INFO] [stdout] 287 |         let channel_type = reader.read_utf8()?;
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_channel_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chan`
[INFO] [stdout]    --> src/connection.rs:292:35
[INFO] [stdout]     |
[INFO] [stdout] 292 |         let id = if let Some((id, chan)) = self.channels.iter().next_back() {
[INFO] [stdout]     |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_chan`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `enc_algos_c2s`
[INFO] [stdout]    --> src/connection.rs:376:17
[INFO] [stdout]     |
[INFO] [stdout] 376 |             let enc_algos_c2s = reader.read_enum_list::<EncryptionAlgorithm>()?;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_enc_algos_c2s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mac_algos_c2s`
[INFO] [stdout]    --> src/connection.rs:379:17
[INFO] [stdout]     |
[INFO] [stdout] 379 |             let mac_algos_c2s = reader.read_enum_list::<MacAlgorithm>()?;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mac_algos_c2s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `comp_algos_c2s`
[INFO] [stdout]    --> src/connection.rs:382:17
[INFO] [stdout]     |
[INFO] [stdout] 382 |             let comp_algos_c2s = reader
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_comp_algos_c2s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/connection.rs:63:44
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn run<S: Read + Write>(&mut self, mut stream: &mut S) -> Result<()> {
[INFO] [stdout]    |                                            ----^^^^^^
[INFO] [stdout]    |                                            |
[INFO] [stdout]    |                                            help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:337:17
[INFO] [stdout]     |
[INFO] [stdout] 337 |             let mut channel = self.channels.get_mut(&channel_id).unwrap();
[INFO] [stdout]     |                 ----^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:359:13
[INFO] [stdout]     |
[INFO] [stdout] 359 |         let mut channel = self.channels.get_mut(&channel_id).unwrap();
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `state`
[INFO] [stdout]   --> src/connection.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     state: ConnectionState,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Ok`
[INFO] [stdout]   --> src/key_exchange/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Ok(Packet),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::os::unix::process::CommandExt::before_exec`: should be unsafe, use `pre_exec` instead
[INFO] [stdout]    --> src/channel.rs:146:26
[INFO] [stdout]     |
[INFO] [stdout] 146 |                         .before_exec(|| sys::before_exec())
[INFO] [stdout]     |                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 54 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/server.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 28 | /         loop {
[INFO] [stdout] 29 | |             let (mut stream, addr) = listener.accept()?;
[INFO] [stdout] 30 | |             let config = self.config.clone();
[INFO] [stdout] 31 | |
[INFO] [stdout] ...  |
[INFO] [stdout] 43 | |             });
[INFO] [stdout] 44 | |         }
[INFO] [stdout]    | |_________- any code following this expression is unreachable
[INFO] [stdout] 45 | 
[INFO] [stdout] 46 |           Ok(())
[INFO] [stdout]    |           ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/key_exchange/curve25519.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |                     _ => return KexResult::Error,
[INFO] [stdout]    |                     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/connection.rs:177:43
[INFO] [stdout]     |
[INFO] [stdout] 177 |     fn generate_key(&mut self, id: &[u8], len: usize) -> Result<Vec<u8>> {
[INFO] [stdout]     |                                           ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `packet`
[INFO] [stdout]    --> src/connection.rs:217:28
[INFO] [stdout]     |
[INFO] [stdout] 217 |     fn new_keys(&mut self, packet: Packet) -> Result<Option<Packet>> {
[INFO] [stdout]     |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_packet`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `channel_type`
[INFO] [stdout]    --> src/connection.rs:287:13
[INFO] [stdout]     |
[INFO] [stdout] 287 |         let channel_type = reader.read_utf8()?;
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_channel_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chan`
[INFO] [stdout]    --> src/connection.rs:292:35
[INFO] [stdout]     |
[INFO] [stdout] 292 |         let id = if let Some((id, chan)) = self.channels.iter().next_back() {
[INFO] [stdout]     |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_chan`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `enc_algos_c2s`
[INFO] [stdout]    --> src/connection.rs:376:17
[INFO] [stdout]     |
[INFO] [stdout] 376 |             let enc_algos_c2s = reader.read_enum_list::<EncryptionAlgorithm>()?;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_enc_algos_c2s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mac_algos_c2s`
[INFO] [stdout]    --> src/connection.rs:379:17
[INFO] [stdout]     |
[INFO] [stdout] 379 |             let mac_algos_c2s = reader.read_enum_list::<MacAlgorithm>()?;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mac_algos_c2s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `comp_algos_c2s`
[INFO] [stdout]    --> src/connection.rs:382:17
[INFO] [stdout]     |
[INFO] [stdout] 382 |             let comp_algos_c2s = reader
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_comp_algos_c2s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/connection.rs:63:44
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn run<S: Read + Write>(&mut self, mut stream: &mut S) -> Result<()> {
[INFO] [stdout]    |                                            ----^^^^^^
[INFO] [stdout]    |                                            |
[INFO] [stdout]    |                                            help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> tests/public_key.rs:9:37
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn test_export_import(keypair: &Box<KeyPair>) -> Box<KeyPair> {
[INFO] [stdout]   |                                     ^^^^^^^ help: use `dyn`: `dyn KeyPair`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> tests/public_key.rs:9:54
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn test_export_import(keypair: &Box<KeyPair>) -> Box<KeyPair> {
[INFO] [stdout]   |                                                      ^^^^^^^ help: use `dyn`: `dyn KeyPair`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:337:17
[INFO] [stdout]     |
[INFO] [stdout] 337 |             let mut channel = self.channels.get_mut(&channel_id).unwrap();
[INFO] [stdout]     |                 ----^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:359:13
[INFO] [stdout]     |
[INFO] [stdout] 359 |         let mut channel = self.channels.get_mut(&channel_id).unwrap();
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/bin/ssh-keygen.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     keypair.export(&mut buffer);
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/bin/ssh-keygen.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     keypair.export(&mut buffer);
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `state`
[INFO] [stdout]   --> src/connection.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     state: ConnectionState,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Ok`
[INFO] [stdout]   --> src/key_exchange/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Ok(Packet),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 54 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.49s
[INFO] running `Command { std: "docker" "inspect" "9d44d7d01ff4fc91adc20cb69030265f747ff33736f0f561619574b94a24fd2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d44d7d01ff4fc91adc20cb69030265f747ff33736f0f561619574b94a24fd2d", kill_on_drop: false }`
[INFO] [stdout] 9d44d7d01ff4fc91adc20cb69030265f747ff33736f0f561619574b94a24fd2d