[INFO] fetching crate post-sockets 0.1.0...
[INFO] documenting post-sockets-0.1.0 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate post-sockets 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate post-sockets 0.1.0 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84b68e4d0015009c459ff0cee8bb328169be16adfee90c5452b8ee63bfd52bda
[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" "84b68e4d0015009c459ff0cee8bb328169be16adfee90c5452b8ee63bfd52bda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84b68e4d0015009c459ff0cee8bb328169be16adfee90c5452b8ee63bfd52bda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84b68e4d0015009c459ff0cee8bb328169be16adfee90c5452b8ee63bfd52bda", kill_on_drop: false }`
[INFO] [stdout] 84b68e4d0015009c459ff0cee8bb328169be16adfee90c5452b8ee63bfd52bda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "RUSTDOCFLAGS=--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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50de25ea7321bc7baf3f733e7564308ddfcf6f8fb3bb489f04f32fa09b5d59c5
[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" "50de25ea7321bc7baf3f733e7564308ddfcf6f8fb3bb489f04f32fa09b5d59c5", kill_on_drop: false }`
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking post-sockets v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting post-sockets v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/carrier.rs:34:24
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn send(&mut self, msg : &P::M) {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/protocols/quic/mod.rs:71:30
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn decode_message(&self, data : &[u8]) -> Option<Self::M> {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mesg`
[INFO] [stdout]   --> src/protocols/quic/mod.rs:75:30
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn encode_message(&self, mesg : &Self::M) -> &[u8] {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_mesg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Carrier`
[INFO] [stdout]   --> src/carrier.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Carrier<P : Protocol> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `send`
[INFO] [stdout]   --> src/carrier.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn send(&mut self, msg : &P::M) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.96s
[INFO] running `Command { std: "docker" "inspect" "50de25ea7321bc7baf3f733e7564308ddfcf6f8fb3bb489f04f32fa09b5d59c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50de25ea7321bc7baf3f733e7564308ddfcf6f8fb3bb489f04f32fa09b5d59c5", kill_on_drop: false }`
[INFO] [stdout] 50de25ea7321bc7baf3f733e7564308ddfcf6f8fb3bb489f04f32fa09b5d59c5