[INFO] cloning repository https://github.com/cjmakes/ns-sockets
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cjmakes/ns-sockets" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjmakes%2Fns-sockets", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjmakes%2Fns-sockets'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 94844c2897671ef73f03d466cf8ab802976e9557
[INFO] checking cjmakes/ns-sockets against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjmakes%2Fns-sockets" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cjmakes/ns-sockets on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cjmakes/ns-sockets
[INFO] finished tweaking git repo https://github.com/cjmakes/ns-sockets
[INFO] tweaked toml for git repo https://github.com/cjmakes/ns-sockets written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cjmakes/ns-sockets 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-net v1.7.0
[INFO] [stderr]   Downloaded smol v1.2.5
[INFO] [stderr]   Downloaded async-io v1.8.0
[INFO] [stderr]   Downloaded io-uring v0.5.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cccaf2d4b165539299d339716ad7c87a1817779fbf0c8a5a77c59b69344ccd65
[INFO] running `Command { std: "docker" "start" "-a" "cccaf2d4b165539299d339716ad7c87a1817779fbf0c8a5a77c59b69344ccd65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cccaf2d4b165539299d339716ad7c87a1817779fbf0c8a5a77c59b69344ccd65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cccaf2d4b165539299d339716ad7c87a1817779fbf0c8a5a77c59b69344ccd65", kill_on_drop: false }`
[INFO] [stdout] cccaf2d4b165539299d339716ad7c87a1817779fbf0c8a5a77c59b69344ccd65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=forbid" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8edd1e8176650192cfafd2e16e13c02dbd9f19b639903f1c113bdd7a3dab7cf5
[INFO] running `Command { std: "docker" "start" "-a" "8edd1e8176650192cfafd2e16e13c02dbd9f19b639903f1c113bdd7a3dab7cf5", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.131
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]     Checking futures-io v0.3.24
[INFO] [stderr]     Checking cache-padded v1.2.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]    Compiling anyhow v1.0.62
[INFO] [stderr]     Checking futures-sink v0.3.24
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling polling v2.3.0
[INFO] [stderr]    Compiling tokio v1.20.1
[INFO] [stderr]     Checking concurrent-queue v1.2.4
[INFO] [stderr]    Compiling async-io v1.8.0
[INFO] [stderr]    Compiling paste v1.0.8
[INFO] [stderr]     Checking async-task v4.3.0
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]     Checking tracing-core v0.1.29
[INFO] [stderr]    Compiling async-net v1.7.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling async-process v1.5.0
[INFO] [stderr]    Compiling async-fs v1.6.0
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking async-channel v1.7.1
[INFO] [stderr]     Checking async-lock v2.5.0
[INFO] [stderr]    Compiling io-uring v0.5.3
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking tracing-subscriber v0.3.15
[INFO] [stderr]     Checking blocking v1.2.0
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking socket2 v0.4.6
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking nix v0.24.2
[INFO] [stderr]     Checking nix v0.25.0
[INFO] [stderr]     Checking smol v1.2.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.32
[INFO] [stderr]    Compiling futures-macro v0.3.24
[INFO] [stderr]    Compiling tracing-attributes v0.1.22
[INFO] [stderr]     Checking thiserror v1.0.32
[INFO] [stderr]     Checking netlink-packet-utils v0.5.1
[INFO] [stderr]     Checking tracing v0.1.36
[INFO] [stderr]     Checking netlink-packet-core v0.4.2
[INFO] [stderr]     Checking netlink-packet-route v0.13.0
[INFO] [stderr]     Checking futures-executor v0.3.24
[INFO] [stderr]     Checking futures v0.3.24
[INFO] [stderr]     Checking netlink-sys v0.8.3
[INFO] [stderr]     Checking netlink-proto v0.10.0
[INFO] [stderr]     Checking rtnetlink v0.11.0
[INFO] [stderr]     Checking admin v0.1.0 (/opt/rustwide/workdir/admin)
[INFO] [stdout] warning: unused import: `smol::prelude`
[INFO] [stdout]   --> admin/src/ns.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use smol::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `smol::prelude`
[INFO] [stdout]   --> admin/src/ns.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use smol::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `accept1` is never used
[INFO] [stdout]   --> admin/src/tcp.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn accept1(fd: RawFd) -> Result<i32> {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_listener` is never used
[INFO] [stdout]   --> admin/src/tcp.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn create_listener() -> Result<RawFd> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `accept1` is never used
[INFO] [stdout]   --> admin/src/tcp.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn accept1(fd: RawFd) -> Result<i32> {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_listener` is never used
[INFO] [stdout]   --> admin/src/tcp.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn create_listener() -> Result<RawFd> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.20s
[INFO] running `Command { std: "docker" "inspect" "8edd1e8176650192cfafd2e16e13c02dbd9f19b639903f1c113bdd7a3dab7cf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8edd1e8176650192cfafd2e16e13c02dbd9f19b639903f1c113bdd7a3dab7cf5", kill_on_drop: false }`
[INFO] [stdout] 8edd1e8176650192cfafd2e16e13c02dbd9f19b639903f1c113bdd7a3dab7cf5