[INFO] cloning repository https://github.com/kevinkurek/udp_multicast_demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kevinkurek/udp_multicast_demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevinkurek%2Fudp_multicast_demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevinkurek%2Fudp_multicast_demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db277a6b6afea639ddb5e09bc588f6ce21636ebe
[INFO] building kevinkurek/udp_multicast_demo against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevinkurek%2Fudp_multicast_demo" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kevinkurek/udp_multicast_demo on toolchain 8b8eff55bd72abbb57167bc42222a7f91d41cb0d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kevinkurek/udp_multicast_demo
[INFO] finished tweaking git repo https://github.com/kevinkurek/udp_multicast_demo
[INFO] tweaked toml for git repo https://github.com/kevinkurek/udp_multicast_demo written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kevinkurek/udp_multicast_demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] building kevinkurek/udp_multicast_demo against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevinkurek%2Fudp_multicast_demo" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kevinkurek/udp_multicast_demo on toolchain 8b8eff55bd72abbb57167bc42222a7f91d41cb0d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kevinkurek/udp_multicast_demo
[INFO] finished tweaking git repo https://github.com/kevinkurek/udp_multicast_demo
[INFO] tweaked toml for git repo https://github.com/kevinkurek/udp_multicast_demo written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kevinkurek/udp_multicast_demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0065e1d787f433fb260c61aa847cb3b747d26dc76707572e51a83d3b08e13779
[INFO] running `Command { std: "docker" "start" "-a" "0065e1d787f433fb260c61aa847cb3b747d26dc76707572e51a83d3b08e13779", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0065e1d787f433fb260c61aa847cb3b747d26dc76707572e51a83d3b08e13779", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0065e1d787f433fb260c61aa847cb3b747d26dc76707572e51a83d3b08e13779", kill_on_drop: false }`
[INFO] [stdout] 0065e1d787f433fb260c61aa847cb3b747d26dc76707572e51a83d3b08e13779
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d108438a66f00508f3d40a8a8003fb547eba6fdfcef91377f766c2d5c27e0f4
[INFO] running `Command { std: "docker" "start" "-a" "8d108438a66f00508f3d40a8a8003fb547eba6fdfcef91377f766c2d5c27e0f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.16
[INFO] [stderr]    Compiling bytes v1.10.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tokio v1.43.0
[INFO] [stderr]    Compiling udpmulticast_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/udp_multicast_server.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/udp_multicast_client.rs:78:4
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/tcp_recovery_server.rs:81:10
[INFO] [stdout]    |
[INFO] [stdout] 81 | async fn main() {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/udp_multicast_server.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/udp_multicast_client.rs:78:4
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/tcp_recovery_server.rs:81:10
[INFO] [stdout]    |
[INFO] [stdout] 81 | async fn main() {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.14s
[INFO] running `Command { std: "docker" "inspect" "8d108438a66f00508f3d40a8a8003fb547eba6fdfcef91377f766c2d5c27e0f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d108438a66f00508f3d40a8a8003fb547eba6fdfcef91377f766c2d5c27e0f4", kill_on_drop: false }`
[INFO] [stdout] 8d108438a66f00508f3d40a8a8003fb547eba6fdfcef91377f766c2d5c27e0f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa163260fd394b975ae4582032e236e4d10551e1ea909b35322a27b8705a3368
[INFO] running `Command { std: "docker" "start" "-a" "fa163260fd394b975ae4582032e236e4d10551e1ea909b35322a27b8705a3368", kill_on_drop: false }`
[INFO] [stderr]    Compiling udpmulticast_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/udp_multicast_server.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/udp_multicast_client.rs:78:4
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/tcp_recovery_server.rs:81:10
[INFO] [stdout]    |
[INFO] [stdout] 81 | async fn main() {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/udp_multicast_server.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/udp_multicast_client.rs:78:4
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/tcp_recovery_server.rs:81:10
[INFO] [stdout]    |
[INFO] [stdout] 81 | async fn main() {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/udp_multicast_server.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/udp_multicast_client.rs:78:4
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/tcp_recovery_server.rs:81:10
[INFO] [stdout]    |
[INFO] [stdout] 81 | async fn main() {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "fa163260fd394b975ae4582032e236e4d10551e1ea909b35322a27b8705a3368", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa163260fd394b975ae4582032e236e4d10551e1ea909b35322a27b8705a3368", kill_on_drop: false }`
[INFO] [stdout] fa163260fd394b975ae4582032e236e4d10551e1ea909b35322a27b8705a3368