[INFO] crate post-sockets 0.1.0 is already in cache
[INFO] checking post-sockets-0.1.0 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate post-sockets 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate post-sockets 0.1.0 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate post-sockets 0.1.0
[INFO] finished tweaking crates.io crate post-sockets 0.1.0
[INFO] tweaked toml for crates.io crate post-sockets 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] c851f2321b407e0eb1b3795c3713059685df045607942db4cda6159e9ed78a2b
[INFO] running `"docker" "start" "-a" "c851f2321b407e0eb1b3795c3713059685df045607942db4cda6159e9ed78a2b"`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking post-sockets v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/carrier.rs:34:24
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn send(&mut self, msg : &P::M) {
[INFO] [stderr]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]   --> src/protocols/quic/mod.rs:71:30
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn decode_message(&self, data : &[u8]) -> Option<Self::M> {
[INFO] [stderr]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mesg`
[INFO] [stderr]   --> src/protocols/quic/mod.rs:75:30
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn encode_message(&self, mesg : &Self::M) -> &[u8] {
[INFO] [stderr]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_mesg`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/carrier.rs:34:24
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn send(&mut self, msg : &P::M) {
[INFO] [stderr]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]   --> src/protocols/quic/mod.rs:71:30
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn decode_message(&self, data : &[u8]) -> Option<Self::M> {
[INFO] [stderr]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mesg`
[INFO] [stderr]   --> src/protocols/quic/mod.rs:75:30
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn encode_message(&self, mesg : &Self::M) -> &[u8] {
[INFO] [stderr]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_mesg`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Carrier`
[INFO] [stderr]   --> src/carrier.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub struct Carrier<P : Protocol> {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send`
[INFO] [stderr]   --> src/carrier.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn send(&mut self, msg : &P::M) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Carrier`
[INFO] [stderr]   --> src/carrier.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub struct Carrier<P : Protocol> {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send`
[INFO] [stderr]   --> src/carrier.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn send(&mut self, msg : &P::M) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.40s
[INFO] running `"docker" "inspect" "c851f2321b407e0eb1b3795c3713059685df045607942db4cda6159e9ed78a2b"`
[INFO] running `"docker" "rm" "-f" "c851f2321b407e0eb1b3795c3713059685df045607942db4cda6159e9ed78a2b"`
[INFO] [stdout] c851f2321b407e0eb1b3795c3713059685df045607942db4cda6159e9ed78a2b