[INFO] fetching crate rumqttd 0.20.0...
[INFO] checking rumqttd-0.20.0 against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] extracting crate rumqttd 0.20.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate rumqttd 0.20.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rumqttd 0.20.0
[INFO] tweaked toml for crates.io crate rumqttd 0.20.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rumqttd 0.20.0 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 crates.io crate rumqttd 0.20.0 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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.91
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[INFO] [stderr]   Downloaded quanta v0.12.2
[INFO] [stderr]   Downloaded async-tungstenite v0.25.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f60a69e2301d33b45ea772936c21167fe0adb7167f1a118763586df49bf24cd6
[INFO] running `Command { std: "docker" "start" "-a" "f60a69e2301d33b45ea772936c21167fe0adb7167f1a118763586df49bf24cd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f60a69e2301d33b45ea772936c21167fe0adb7167f1a118763586df49bf24cd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f60a69e2301d33b45ea772936c21167fe0adb7167f1a118763586df49bf24cd6", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 40f255eb3e47871aad226d96f06e9dbbb6a688e4de39a22a3684102700c44a68
[INFO] running `Command { std: "docker" "start" "-a" "40f255eb3e47871aad226d96f06e9dbbb6a688e4de39a22a3684102700c44a68", kill_on_drop: false }`
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[INFO] [stdout] warning: enum `Error` is never used
[INFO] [stdout]   --> src/link/timer.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum 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: struct `AcksRequest` is never constructed
[INFO] [stdout]    --> src/router/mod.rs:202:12
[INFO] [stdout]     |
[INFO] [stdout] 202 | pub struct AcksRequest;
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Request` is never used
[INFO] [stdout]    --> src/router/mod.rs:205:10
[INFO] [stdout]     |
[INFO] [stdout] 205 | pub enum Request {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Message` is never constructed
[INFO] [stdout]    --> src/router/mod.rs:211:12
[INFO] [stdout]     |
[INFO] [stdout] 211 | pub struct Message {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Data` is never constructed
[INFO] [stdout]    --> src/router/mod.rs:232:12
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub struct Data {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/link/local.rs:162:19
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn buffer(&self) -> MutexGuard<RawMutex, VecDeque<Packet>> {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn buffer(&self) -> MutexGuard<'_, RawMutex, VecDeque<Packet>> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Error` is never used
[INFO] [stdout]   --> src/link/timer.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum 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: struct `AcksRequest` is never constructed
[INFO] [stdout]    --> src/router/mod.rs:202:12
[INFO] [stdout]     |
[INFO] [stdout] 202 | pub struct AcksRequest;
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Request` is never used
[INFO] [stdout]    --> src/router/mod.rs:205:10
[INFO] [stdout]     |
[INFO] [stdout] 205 | pub enum Request {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Message` is never constructed
[INFO] [stdout]    --> src/router/mod.rs:211:12
[INFO] [stdout]     |
[INFO] [stdout] 211 | pub struct Message {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Data` is never constructed
[INFO] [stdout]    --> src/router/mod.rs:232:12
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub struct Data {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/link/local.rs:162:19
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn buffer(&self) -> MutexGuard<RawMutex, VecDeque<Packet>> {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn buffer(&self) -> MutexGuard<'_, RawMutex, VecDeque<Packet>> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 44.77s
[INFO] running `Command { std: "docker" "inspect" "40f255eb3e47871aad226d96f06e9dbbb6a688e4de39a22a3684102700c44a68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40f255eb3e47871aad226d96f06e9dbbb6a688e4de39a22a3684102700c44a68", kill_on_drop: false }`
[INFO] [stdout] 40f255eb3e47871aad226d96f06e9dbbb6a688e4de39a22a3684102700c44a68
