[INFO] fetching crate ruo 0.1.2...
[INFO] building ruo-0.1.2 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate ruo 0.1.2 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate ruo 0.1.2
[INFO] finished tweaking crates.io crate ruo 0.1.2
[INFO] tweaked toml for crates.io crate ruo 0.1.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ruo 0.1.2 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ruo 0.1.2 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-tungstenite v0.17.1
[INFO] [stderr]   Downloaded tracing-attributes v0.1.21
[INFO] [stderr]   Downloaded quinn v0.8.2
[INFO] [stderr]   Downloaded once_cell v1.10.0
[INFO] [stderr]   Downloaded quinn-udp v0.1.1
[INFO] [stderr]   Downloaded serde_derive v1.0.137
[INFO] [stderr]   Downloaded hebo_codec v0.1.4
[INFO] [stderr]   Downloaded futures v0.3.21
[INFO] [stderr]   Downloaded serde v1.0.137
[INFO] [stderr]   Downloaded http v0.2.7
[INFO] [stderr]   Downloaded rustls v0.20.5
[INFO] [stderr]   Downloaded tracing v0.1.34
[INFO] [stderr]   Downloaded quinn-proto v0.8.2
[INFO] [stderr]   Downloaded syn v1.0.95
[INFO] [stderr]   Downloaded regex v1.5.5
[INFO] [stderr]   Downloaded webpki-roots v0.22.3
[INFO] [stderr]   Downloaded bumpalo v3.9.1
[INFO] [stderr]   Downloaded tungstenite v0.17.2
[INFO] [stderr]   Downloaded tracing-core v0.1.26
[INFO] [stderr]   Downloaded rustls-pemfile v1.0.0
[INFO] [stderr]   Downloaded parking_lot v0.12.0
[INFO] [stderr]   Downloaded tokio v1.18.2
[INFO] [stderr]   Downloaded tokio-macros v1.7.0
[INFO] [stderr]   Downloaded futures-executor v0.3.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ede3d462004dbda44aa9808da0ed129117fd7c06e68657ef3cbb8fe659a2411
[INFO] running `Command { std: "docker" "start" "-a" "7ede3d462004dbda44aa9808da0ed129117fd7c06e68657ef3cbb8fe659a2411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ede3d462004dbda44aa9808da0ed129117fd7c06e68657ef3cbb8fe659a2411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ede3d462004dbda44aa9808da0ed129117fd7c06e68657ef3cbb8fe659a2411", kill_on_drop: false }`
[INFO] [stdout] 7ede3d462004dbda44aa9808da0ed129117fd7c06e68657ef3cbb8fe659a2411
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acd5149cf97ca952532903c78ceecc0d7a9981f626e7f4e9387d95a21dff03ef
[INFO] running `Command { std: "docker" "start" "-a" "acd5149cf97ca952532903c78ceecc0d7a9981f626e7f4e9387d95a21dff03ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling once_cell v1.10.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling rustls v0.20.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling futures-sink v0.3.21
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling slab v0.4.6
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling futures-io v0.3.21
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling matches v0.1.9
[INFO] [stderr]    Compiling tracing-core v0.1.26
[INFO] [stderr]    Compiling rustls-pemfile v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling unicode-bidi v0.3.8
[INFO] [stderr]    Compiling httparse v1.7.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling mio v0.8.3
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling rustls-native-certs v0.6.2
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rustls-pemfile v0.2.1
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling cpufeatures v0.2.2
[INFO] [stderr]    Compiling itoa v1.0.2
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling http v0.2.7
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling crypto-common v0.1.3
[INFO] [stderr]    Compiling block-buffer v0.10.2
[INFO] [stderr]    Compiling digest v0.10.3
[INFO] [stderr]    Compiling sha-1 v0.10.0
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling webpki v0.22.0
[INFO] [stderr]    Compiling sct v0.7.0
[INFO] [stderr]    Compiling webpki-roots v0.22.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.21
[INFO] [stderr]    Compiling tokio v1.18.2
[INFO] [stderr]    Compiling thiserror v1.0.31
[INFO] [stderr]    Compiling tungstenite v0.17.2
[INFO] [stderr]    Compiling tracing v0.1.34
[INFO] [stderr]    Compiling quinn-proto v0.8.2
[INFO] [stderr]    Compiling futures-executor v0.3.21
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]    Compiling tokio-rustls v0.23.4
[INFO] [stderr]    Compiling quinn-udp v0.1.1
[INFO] [stderr]    Compiling quinn v0.8.2
[INFO] [stderr]    Compiling tokio-tungstenite v0.17.1
[INFO] [stderr]    Compiling hebo_codec v0.1.4
[INFO] [stderr]    Compiling ruo v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.45s
[INFO] running `Command { std: "docker" "inspect" "acd5149cf97ca952532903c78ceecc0d7a9981f626e7f4e9387d95a21dff03ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acd5149cf97ca952532903c78ceecc0d7a9981f626e7f4e9387d95a21dff03ef", kill_on_drop: false }`
[INFO] [stdout] acd5149cf97ca952532903c78ceecc0d7a9981f626e7f4e9387d95a21dff03ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a42bbe21221996495f84cf73a5e7ea0de360e882b785ff4c75d156182f0f8593
[INFO] running `Command { std: "docker" "start" "-a" "a42bbe21221996495f84cf73a5e7ea0de360e882b785ff4c75d156182f0f8593", kill_on_drop: false }`
[INFO] [stderr]    Compiling ruo v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `on_connect` is never used
[INFO] [stdout]   --> examples/mqtt.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | async fn on_connect(client: &mut Client) {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `on_connect` is never used
[INFO] [stdout]   --> examples/quic.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | async fn on_connect(client: &mut Client) {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::future::Future`
[INFO] [stdout]  --> examples/uds.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::future::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `on_connect` is never used
[INFO] [stdout]   --> examples/uds.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | async fn on_connect(client: &mut Client) {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.34s
[INFO] running `Command { std: "docker" "inspect" "a42bbe21221996495f84cf73a5e7ea0de360e882b785ff4c75d156182f0f8593", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a42bbe21221996495f84cf73a5e7ea0de360e882b785ff4c75d156182f0f8593", kill_on_drop: false }`
[INFO] [stdout] a42bbe21221996495f84cf73a5e7ea0de360e882b785ff4c75d156182f0f8593