[INFO] cloning repository https://github.com/serhii-lypko/mini-tokio
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/serhii-lypko/mini-tokio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fserhii-lypko%2Fmini-tokio", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fserhii-lypko%2Fmini-tokio'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 014e2ac27970714e18db634e9fff17c20b4d8b7b
[INFO] checking serhii-lypko/mini-tokio against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fserhii-lypko%2Fmini-tokio" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/serhii-lypko/mini-tokio
[INFO] finished tweaking git repo https://github.com/serhii-lypko/mini-tokio
[INFO] tweaked toml for git repo https://github.com/serhii-lypko/mini-tokio written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/serhii-lypko/mini-tokio on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/serhii-lypko/mini-tokio 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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29723f39bf4c907342882eef1702aed208f88bae4d5086203f1e549a672127fc
[INFO] running `Command { std: "docker" "start" "-a" "29723f39bf4c907342882eef1702aed208f88bae4d5086203f1e549a672127fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29723f39bf4c907342882eef1702aed208f88bae4d5086203f1e549a672127fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29723f39bf4c907342882eef1702aed208f88bae4d5086203f1e549a672127fc", kill_on_drop: false }`
[INFO] [stdout] 29723f39bf4c907342882eef1702aed208f88bae4d5086203f1e549a672127fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 201d85d646820230e6efa491b7ce0b461b50ce7e061cde5552554c90232721f8
[INFO] running `Command { std: "docker" "start" "-a" "201d85d646820230e6efa491b7ce0b461b50ce7e061cde5552554c90232721f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.2.30
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]     Checking tokio v1.46.1
[INFO] [stderr]     Checking icu_normalizer v2.0.0
[INFO] [stderr]    Compiling serde_json v1.0.141
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking idna v1.0.3
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking url v2.5.4
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]     Checking tokio-util v0.7.15
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking h2 v0.3.27
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking hyper v0.14.32
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.27
[INFO] [stderr]     Checking mini-tokio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `response`
[INFO] [stdout]   --> src/playground.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let response = fetcher.fetch();
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_response`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fetch_url` is never used
[INFO] [stdout]  --> src/playground.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub async fn fetch_url() -> Result<String, Error> {
[INFO] [stdout]   |              ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Fetcher` is never used
[INFO] [stdout]   --> src/playground.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | trait Fetcher {
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HttpFetcher` is never constructed
[INFO] [stdout]   --> src/playground.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct HttpFetcher;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `XmlFetcher` is never constructed
[INFO] [stdout]   --> src/playground.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct XmlFetcher;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `call_stuff` is never used
[INFO] [stdout]   --> src/playground.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn call_stuff(fetchers: Vec<Box<dyn Fetcher>>) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `trait_object_playground` is never used
[INFO] [stdout]   --> src/playground.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn trait_object_playground() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `response`
[INFO] [stdout]   --> src/playground.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let response = fetcher.fetch();
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_response`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fetch_url` is never used
[INFO] [stdout]  --> src/playground.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub async fn fetch_url() -> Result<String, Error> {
[INFO] [stdout]   |              ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Fetcher` is never used
[INFO] [stdout]   --> src/playground.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | trait Fetcher {
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HttpFetcher` is never constructed
[INFO] [stdout]   --> src/playground.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct HttpFetcher;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `XmlFetcher` is never constructed
[INFO] [stdout]   --> src/playground.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct XmlFetcher;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `call_stuff` is never used
[INFO] [stdout]   --> src/playground.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn call_stuff(fetchers: Vec<Box<dyn Fetcher>>) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `trait_object_playground` is never used
[INFO] [stdout]   --> src/playground.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn trait_object_playground() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.05s
[INFO] running `Command { std: "docker" "inspect" "201d85d646820230e6efa491b7ce0b461b50ce7e061cde5552554c90232721f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "201d85d646820230e6efa491b7ce0b461b50ce7e061cde5552554c90232721f8", kill_on_drop: false }`
[INFO] [stdout] 201d85d646820230e6efa491b7ce0b461b50ce7e061cde5552554c90232721f8
