[INFO] fetching crate ruo 0.1.2...
[INFO] checking ruo-0.1.2 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate ruo 0.1.2 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate ruo 0.1.2 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-5-tc1/source/Cargo.toml
[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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sha-1 v0.10.0
[INFO] [stderr]   Downloaded generic-array v0.14.5
[INFO] [stderr]   Downloaded typenum v1.15.0
[INFO] [stderr]   Downloaded cpufeatures v0.2.2
[INFO] [stderr]   Downloaded getrandom v0.2.6
[INFO] [stderr]   Downloaded futures-executor v0.3.21
[INFO] [stderr]   Downloaded rustls-native-certs v0.6.2
[INFO] [stderr]   Downloaded futures-io v0.3.21
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[INFO] [stderr]   Downloaded futures v0.3.21
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[INFO] [stderr]   Downloaded unicode-normalization v0.1.19
[INFO] [stderr]   Downloaded security-framework v2.6.1
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[INFO] [stderr]   Downloaded quinn-proto v0.8.2
[INFO] [stderr]   Downloaded syn v1.0.95
[INFO] [stderr]   Downloaded quinn v0.8.2
[INFO] [stderr]   Downloaded hebo_codec v0.1.4
[INFO] [stderr]   Downloaded lock_api v0.4.7
[INFO] [stderr]   Downloaded regex v1.5.5
[INFO] [stderr]   Downloaded tungstenite v0.17.2
[INFO] [stderr]   Downloaded regex-syntax v0.6.25
[INFO] [stderr]   Downloaded rustls-pemfile v0.2.1
[INFO] [stderr]   Downloaded quinn-udp v0.1.1
[INFO] [stderr]   Downloaded rustls-pemfile v1.0.0
[INFO] [stderr]   Downloaded futures-macro v0.3.21
[INFO] [stderr]   Downloaded redox_syscall v0.2.13
[INFO] [stderr]   Downloaded tokio-tungstenite v0.17.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] abb97e65ba38d05051dec9e4dca32ce5fb92ca344d24d4dcd9f217bca4718346
[INFO] running `Command { std: "docker" "start" "-a" "abb97e65ba38d05051dec9e4dca32ce5fb92ca344d24d4dcd9f217bca4718346", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abb97e65ba38d05051dec9e4dca32ce5fb92ca344d24d4dcd9f217bca4718346", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abb97e65ba38d05051dec9e4dca32ce5fb92ca344d24d4dcd9f217bca4718346", kill_on_drop: false }`
[INFO] [stdout] abb97e65ba38d05051dec9e4dca32ce5fb92ca344d24d4dcd9f217bca4718346
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc341aaaba42904bb2cbd593fd8b235446ed8c8a841a7145c7123d2c881b31fb
[INFO] running `Command { std: "docker" "start" "-a" "cc341aaaba42904bb2cbd593fd8b235446ed8c8a841a7145c7123d2c881b31fb", 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 memchr v2.5.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling rustls v0.20.5
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking rustls-pemfile v1.0.0
[INFO] [stderr]     Checking mio v0.8.3
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking rustls-pemfile v0.2.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rustls-native-certs v0.6.2
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[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking parking_lot v0.12.0
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[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termcolor v1.1.3
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[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
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[INFO] [stderr]     Checking webpki-roots v0.22.3
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking block-buffer v0.10.2
[INFO] [stderr]     Checking crypto-common v0.1.3
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]     Checking sha-1 v0.10.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.21
[INFO] [stderr]     Checking tokio v1.18.2
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]     Checking tungstenite v0.17.2
[INFO] [stderr]     Checking quinn-proto v0.8.2
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking tokio-rustls v0.23.4
[INFO] [stderr]     Checking quinn-udp v0.1.1
[INFO] [stderr]     Checking quinn v0.8.2
[INFO] [stderr]     Checking tokio-tungstenite v0.17.1
[INFO] [stderr]     Checking hebo_codec v0.1.4
[INFO] [stderr]     Checking ruo v0.1.2 (/opt/rustwide/workdir)
[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)]` 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)]` 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.72s
[INFO] running `Command { std: "docker" "inspect" "cc341aaaba42904bb2cbd593fd8b235446ed8c8a841a7145c7123d2c881b31fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc341aaaba42904bb2cbd593fd8b235446ed8c8a841a7145c7123d2c881b31fb", kill_on_drop: false }`
[INFO] [stdout] cc341aaaba42904bb2cbd593fd8b235446ed8c8a841a7145c7123d2c881b31fb