[INFO] updating cached repository https://github.com/marzullo/schan
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a42354b09f68b9823bb70322deffe9cae7765540
[INFO] checking marzullo/schan against try#f88e9a4452e792c29632101b348a1df9876d45cd for pr-70087
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarzullo%2Fschan" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/marzullo/schan on toolchain f88e9a4452e792c29632101b348a1df9876d45cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f88e9a4452e792c29632101b348a1df9876d45cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/marzullo/schan
[INFO] finished tweaking git repo https://github.com/marzullo/schan
[INFO] tweaked toml for git repo https://github.com/marzullo/schan written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/marzullo/schan already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f88e9a4452e792c29632101b348a1df9876d45cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+f88e9a4452e792c29632101b348a1df9876d45cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f7e926d9ba9b09736bb42880b7c9863e44404a866e487fc8b11b1cda83b25435
[INFO] running `"docker" "start" "-a" "f7e926d9ba9b09736bb42880b7c9863e44404a866e487fc8b11b1cda83b25435"`
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking subtle v2.2.2
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]    Compiling ring v0.16.11
[INFO] [stderr]     Checking chacha20-poly1305-aead v0.1.2
[INFO] [stderr]    Compiling snow v0.6.2
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking curve25519-dalek v2.0.0
[INFO] [stderr]     Checking x25519-dalek v0.6.0
[INFO] [stderr]     Checking schan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `noise`
[INFO] [stderr]   --> src/lib.rs:76:13
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let mut noise = noise.into_transport_mode().unwrap();
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_noise`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `noise`
[INFO] [stderr]   --> src/lib.rs:98:13
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let mut noise = noise.into_transport_mode().unwrap();
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_noise`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:76:9
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let mut noise = noise.into_transport_mode().unwrap();
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:98:9
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let mut noise = noise.into_transport_mode().unwrap();
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_key`
[INFO] [stderr]  --> src/lib.rs:8:4
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn read_key() -> Result<String> {
[INFO] [stderr]   |    ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_noise_responder`
[INFO] [stderr]   --> src/lib.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn create_noise_responder() -> HandshakeState {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_noise_initiator`
[INFO] [stderr]   --> src/lib.rs:26:4
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn create_noise_initiator() -> HandshakeState {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `send`
[INFO] [stderr]   --> src/lib.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn send(stream: &mut TcpStream, payload: &[u8]) -> () {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `receive`
[INFO] [stderr]   --> src/lib.rs:48:4
[INFO] [stderr]    |
[INFO] [stderr] 48 | fn receive(stream: &mut TcpStream) -> Vec<u8> {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `server_socket`
[INFO] [stderr]   --> src/lib.rs:60:8
[INFO] [stderr]    |
[INFO] [stderr] 60 | pub fn server_socket() -> TcpStream {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `client_socket`
[INFO] [stderr]   --> src/lib.rs:81:8
[INFO] [stderr]    |
[INFO] [stderr] 81 | pub fn client_socket(addr: String) -> TcpStream {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `noise`
[INFO] [stderr]   --> src/lib.rs:76:13
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let mut noise = noise.into_transport_mode().unwrap();
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_noise`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `noise`
[INFO] [stderr]   --> src/lib.rs:98:13
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let mut noise = noise.into_transport_mode().unwrap();
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_noise`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:76:9
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let mut noise = noise.into_transport_mode().unwrap();
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:98:9
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let mut noise = noise.into_transport_mode().unwrap();
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_key`
[INFO] [stderr]  --> src/lib.rs:8:4
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn read_key() -> Result<String> {
[INFO] [stderr]   |    ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_noise_responder`
[INFO] [stderr]   --> src/lib.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn create_noise_responder() -> HandshakeState {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_noise_initiator`
[INFO] [stderr]   --> src/lib.rs:26:4
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn create_noise_initiator() -> HandshakeState {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `send`
[INFO] [stderr]   --> src/lib.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn send(stream: &mut TcpStream, payload: &[u8]) -> () {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `receive`
[INFO] [stderr]   --> src/lib.rs:48:4
[INFO] [stderr]    |
[INFO] [stderr] 48 | fn receive(stream: &mut TcpStream) -> Vec<u8> {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `server_socket`
[INFO] [stderr]   --> src/lib.rs:60:8
[INFO] [stderr]    |
[INFO] [stderr] 60 | pub fn server_socket() -> TcpStream {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `client_socket`
[INFO] [stderr]   --> src/lib.rs:81:8
[INFO] [stderr]    |
[INFO] [stderr] 81 | pub fn client_socket(addr: String) -> TcpStream {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.85s
[INFO] running `"docker" "inspect" "f7e926d9ba9b09736bb42880b7c9863e44404a866e487fc8b11b1cda83b25435"`
[INFO] running `"docker" "rm" "-f" "f7e926d9ba9b09736bb42880b7c9863e44404a866e487fc8b11b1cda83b25435"`
[INFO] [stdout] f7e926d9ba9b09736bb42880b7c9863e44404a866e487fc8b11b1cda83b25435