[INFO] crate updns 0.0.3 is already in cache
[INFO] checking updns-0.0.3 against try#8d67a66581ea5498d7ac03b8f88a478d8ec75cf0 for pr-64564
[INFO] extracting crate updns 0.0.3 into work/builds/worker-1/source
[INFO] validating manifest of crates.io crate updns 0.0.3 on toolchain 8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate updns 0.0.3
[INFO] finished tweaking crates.io crate updns 0.0.3
[INFO] tweaked toml for crates.io crate updns 0.0.3 written to work/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate updns 0.0.3 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b801c5487b9e5ae0c39cb935c11f3ce00441acc5b0c4137e81ff875d0fc9abb1
[INFO] running `"docker" "start" "-a" "b801c5487b9e5ae0c39cb935c11f3ce00441acc5b0c4137e81ff875d0fc9abb1"`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking ace v0.0.2
[INFO] [stderr]     Checking async-task v1.0.0
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futures-timer v0.3.0
[INFO] [stderr]     Checking async-std v0.99.4
[INFO] [stderr]     Checking updns v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/main.rs:270:39
[INFO] [stderr]     |
[INFO] [stderr] 270 |   async fn run_server(addr: SocketAddr) {
[INFO] [stderr]     |  _______________________________________^
[INFO] [stderr] 271 | |     let socket = match UdpSocket::bind(&addr).await {
[INFO] [stderr] 272 | |         Ok(socket) => {
[INFO] [stderr] 273 | |             log!("Start listening to '{}'", addr);
[INFO] [stderr] ...   |
[INFO] [stderr] 298 | |     }
[INFO] [stderr] 299 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/main.rs:270:39
[INFO] [stderr]     |
[INFO] [stderr] 270 |   async fn run_server(addr: SocketAddr) {
[INFO] [stderr]     |  _______________________________________^
[INFO] [stderr] 271 | |     let socket = match UdpSocket::bind(&addr).await {
[INFO] [stderr] 272 | |         Ok(socket) => {
[INFO] [stderr] 273 | |             log!("Start listening to '{}'", addr);
[INFO] [stderr] ...   |
[INFO] [stderr] 298 | |     }
[INFO] [stderr] 299 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0635]: unknown feature `const_vec_new`
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(const_vec_new)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0635]: unknown feature `const_vec_new`
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(const_vec_new)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: could not compile `updns`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `updns`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b801c5487b9e5ae0c39cb935c11f3ce00441acc5b0c4137e81ff875d0fc9abb1"`
[INFO] running `"docker" "rm" "-f" "b801c5487b9e5ae0c39cb935c11f3ce00441acc5b0c4137e81ff875d0fc9abb1"`
[INFO] [stdout] b801c5487b9e5ae0c39cb935c11f3ce00441acc5b0c4137e81ff875d0fc9abb1