[INFO] cloning repository https://github.com/nayrpg/rustest_coaps
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nayrpg/rustest_coaps" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnayrpg%2Frustest_coaps"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnayrpg%2Frustest_coaps'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] eed84369f12a3ded699a9cf666ef222fb146e2f8
[INFO] checking nayrpg/rustest_coaps against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnayrpg%2Frustest_coaps" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nayrpg/rustest_coaps on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/nayrpg/rustest_coaps
[INFO] finished tweaking git repo https://github.com/nayrpg/rustest_coaps
[INFO] tweaked toml for git repo https://github.com/nayrpg/rustest_coaps written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/nayrpg/rustest_coaps already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] c1ec5e5281d7e015c8ed5f0ca91396bb478d45d45a8e2b1488147efdc6ab1bd4
[INFO] running `"docker" "start" "-a" "c1ec5e5281d7e015c8ed5f0ca91396bb478d45d45a8e2b1488147efdc6ab1bd4"`
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling cc v1.0.31
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking byteorder v0.3.13
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling openssl v0.10.19
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking regex-syntax v0.6.6
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking miow v0.1.5
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling openssl-src v111.2.1+1.1.1b
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]    Compiling openssl-sys v0.9.42
[INFO] [stderr]     Checking mio v0.5.1
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking bincode v0.3.0
[INFO] [stderr]     Checking regex v1.1.5
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking coap v0.7.4
[INFO] [stderr]     Checking rustest_coaps v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `len_received`
[INFO] [stderr]    --> src/lib.rs:145:9
[INFO] [stderr]     |
[INFO] [stderr] 145 |     let len_received = coaps_stream.ssl_read(&mut buf);
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len_received`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/lib.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn new(port: u16, address: SocketAddr) -> Result<RpgUdpConnectedSocket, Box<dyn Error>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `connect_to_google`
[INFO] [stderr]   --> src/lib.rs:73:4
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn connect_to_google() -> Result<SslStream<TcpStream>, Box<dyn Error>> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `send_get_request`
[INFO] [stderr]   --> src/lib.rs:85:4
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn send_get_request(https_stream: &mut SslStream<TcpStream>) -> Result<Vec<u8>, Box<dyn Error>> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `connect_to_local_coaps_server`
[INFO] [stderr]   --> src/lib.rs:94:4
[INFO] [stderr]    |
[INFO] [stderr] 94 | fn connect_to_local_coaps_server() -> Result<SslStream<RpgUdpConnectedSocket>, Box<dyn Error>> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `send_coaps_get_request`
[INFO] [stderr]    --> src/lib.rs:124:4
[INFO] [stderr]     |
[INFO] [stderr] 124 | fn send_coaps_get_request(
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len_received`
[INFO] [stderr]    --> src/lib.rs:145:9
[INFO] [stderr]     |
[INFO] [stderr] 145 |     let len_received = coaps_stream.ssl_read(&mut buf);
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len_received`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 24s
[INFO] running `"docker" "inspect" "c1ec5e5281d7e015c8ed5f0ca91396bb478d45d45a8e2b1488147efdc6ab1bd4"`
[INFO] running `"docker" "rm" "-f" "c1ec5e5281d7e015c8ed5f0ca91396bb478d45d45a8e2b1488147efdc6ab1bd4"`
[INFO] [stdout] c1ec5e5281d7e015c8ed5f0ca91396bb478d45d45a8e2b1488147efdc6ab1bd4