[INFO] cloning repository https://github.com/paul-asvb/rust-webrtc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paul-asvb/rust-webrtc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaul-asvb%2Frust-webrtc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaul-asvb%2Frust-webrtc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e84157c09c5853e273b5bc7d2dd43edac33ed60d
[INFO] building paul-asvb/rust-webrtc against master#c8e6a9e8b6251bbc8276cb78cabe1998deecbed7 for pr-97334-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaul-asvb%2Frust-webrtc" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paul-asvb/rust-webrtc on toolchain c8e6a9e8b6251bbc8276cb78cabe1998deecbed7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c8e6a9e8b6251bbc8276cb78cabe1998deecbed7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/paul-asvb/rust-webrtc
[INFO] finished tweaking git repo https://github.com/paul-asvb/rust-webrtc
[INFO] tweaked toml for git repo https://github.com/paul-asvb/rust-webrtc written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/paul-asvb/rust-webrtc 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" "+c8e6a9e8b6251bbc8276cb78cabe1998deecbed7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded webrtc-srtp v0.8.9
[INFO] [stderr]   Downloaded sdp v0.5.1
[INFO] [stderr]   Downloaded webrtc-data v0.3.3
[INFO] [stderr]   Downloaded interceptor v0.7.6
[INFO] [stderr]   Downloaded webrtc-util v0.5.3
[INFO] [stderr]   Downloaded webrtc-media v0.4.5
[INFO] [stderr]   Downloaded webrtc-sctp v0.4.3
[INFO] [stderr]   Downloaded der-parser v6.0.1
[INFO] [stderr]   Downloaded logs v0.5.0
[INFO] [stderr]   Downloaded signal v0.7.0
[INFO] [stderr]   Downloaded stun v0.4.2
[INFO] [stderr]   Downloaded rtp v0.6.5
[INFO] [stderr]   Downloaded webrtc-dtls v0.5.2
[INFO] [stderr]   Downloaded turn v0.5.4
[INFO] [stderr]   Downloaded webrtc-ice v0.6.6
[INFO] [stderr]   Downloaded webrtc-mdns v0.4.2
[INFO] [stderr]   Downloaded rtcp v0.6.5
[INFO] [stderr]   Downloaded webrtc v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+c8e6a9e8b6251bbc8276cb78cabe1998deecbed7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82660a7d3180d949b9600904530484dd47d0e0568eebddf82411f4891dab3647
[INFO] running `Command { std: "docker" "start" "-a" "82660a7d3180d949b9600904530484dd47d0e0568eebddf82411f4891dab3647", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82660a7d3180d949b9600904530484dd47d0e0568eebddf82411f4891dab3647", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82660a7d3180d949b9600904530484dd47d0e0568eebddf82411f4891dab3647", kill_on_drop: false }`
[INFO] [stdout] 82660a7d3180d949b9600904530484dd47d0e0568eebddf82411f4891dab3647
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+c8e6a9e8b6251bbc8276cb78cabe1998deecbed7" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25d435f90d1fb3dbb4c3831deb9b2a2e5381aa0a732d7c56e8be8f04e30f6e8d
[INFO] running `Command { std: "docker" "start" "-a" "25d435f90d1fb3dbb4c3831deb9b2a2e5381aa0a732d7c56e8be8f04e30f6e8d", kill_on_drop: false }`
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[INFO] [stderr]    Compiling rand_chacha v0.3.1
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[INFO] [stderr]    Compiling ghash v0.3.1
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[INFO] [stderr]    Compiling aho-corasick v0.7.18
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[INFO] [stderr]    Compiling textwrap v0.15.0
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[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling clap v3.1.8
[INFO] [stderr]    Compiling webpki v0.21.4
[INFO] [stderr]    Compiling sct v0.6.1
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[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling zeroize_derive v1.3.2
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[INFO] [stderr]    Compiling signal v0.7.0
[INFO] [stderr]    Compiling der-parser v6.0.1
[INFO] [stderr]    Compiling der-parser v5.1.2
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling zeroize v1.3.0
[INFO] [stderr]    Compiling elliptic-curve v0.8.5
[INFO] [stderr]    Compiling darling v0.12.4
[INFO] [stderr]    Compiling derive_builder_core v0.10.2
[INFO] [stderr]    Compiling curve25519-dalek v3.2.1
[INFO] [stderr]    Compiling ecdsa v0.10.2
[INFO] [stderr]    Compiling p256 v0.7.3
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling x509-parser v0.12.0
[INFO] [stderr]    Compiling x509-parser v0.9.2
[INFO] [stderr]    Compiling sdp v0.5.1
[INFO] [stderr]    Compiling x25519-dalek v1.2.0
[INFO] [stderr]    Compiling derive_builder_macro v0.10.2
[INFO] [stderr]    Compiling rcgen v0.8.14
[INFO] [stderr]    Compiling derive_builder v0.10.2
[INFO] [stderr]    Compiling rtp v0.6.5
[INFO] [stderr]    Compiling rtcp v0.6.5
[INFO] [stderr]    Compiling stun v0.4.2
[INFO] [stderr]    Compiling webrtc-mdns v0.4.2
[INFO] [stderr]    Compiling webrtc-sctp v0.4.3
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling webrtc-media v0.4.5
[INFO] [stderr]    Compiling webrtc-dtls v0.5.2
[INFO] [stderr]    Compiling turn v0.5.4
[INFO] [stderr]    Compiling webrtc-srtp v0.8.9
[INFO] [stderr]    Compiling webrtc-data v0.3.3
[INFO] [stderr]    Compiling interceptor v0.7.6
[INFO] [stderr]    Compiling webrtc-ice v0.6.6
[INFO] [stderr]    Compiling webrtc v0.4.0
[INFO] [stderr]    Compiling client v0.1.0 (/opt/rustwide/workdir/client)
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> client/src/session.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> client/src/session.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `webrtc::data_channel::data_channel_message::DataChannelMessage`
[INFO] [stdout]  --> client/src/session.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use webrtc::data_channel::data_channel_message::DataChannelMessage;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `webrtc::data_channel::RTCDataChannel`
[INFO] [stdout]  --> client/src/session.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use webrtc::data_channel::RTCDataChannel;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `webrtc::interceptor::twcc::receiver::Receiver`
[INFO] [stdout]   --> client/src/session.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use webrtc::interceptor::twcc::receiver::Receiver;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `webrtc::peer_connection::math_rand_alpha`
[INFO] [stdout]   --> client/src/session.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use webrtc::peer_connection::math_rand_alpha;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `webrtc::peer_connection::offer_answer_options::RTCOfferOptions`
[INFO] [stdout]   --> client/src/session.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use webrtc::peer_connection::offer_answer_options::RTCOfferOptions;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `webrtc::peer_connection::peer_connection_state::RTCPeerConnectionState`
[INFO] [stdout]   --> client/src/session.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use webrtc::peer_connection::peer_connection_state::RTCPeerConnectionState;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `webrtc::peer_connection::sdp::sdp_type::RTCSdpType`
[INFO] [stdout]   --> client/src/session.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use webrtc::peer_connection::sdp::sdp_type::RTCSdpType;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `webrtc::peer_connection::sdp::session_description::RTCSessionDescription`
[INFO] [stdout]   --> client/src/session.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use webrtc::peer_connection::sdp::session_description::RTCSessionDescription;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `start_session` is never used
[INFO] [stdout]   --> client/src/session.rs:19:14
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub async fn start_session() -> Result<String> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 16s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v6.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "25d435f90d1fb3dbb4c3831deb9b2a2e5381aa0a732d7c56e8be8f04e30f6e8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25d435f90d1fb3dbb4c3831deb9b2a2e5381aa0a732d7c56e8be8f04e30f6e8d", kill_on_drop: false }`
[INFO] [stdout] 25d435f90d1fb3dbb4c3831deb9b2a2e5381aa0a732d7c56e8be8f04e30f6e8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+c8e6a9e8b6251bbc8276cb78cabe1998deecbed7" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35ad12ae1f53eccca8f0c47313369bbf020bdf84ea349c473431ca5ca89d2b32
[INFO] running `Command { std: "docker" "start" "-a" "35ad12ae1f53eccca8f0c47313369bbf020bdf84ea349c473431ca5ca89d2b32", kill_on_drop: false }`
[INFO] [stderr]    Compiling client v0.1.0 (/opt/rustwide/workdir/client)
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> client/src/session.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> client/src/session.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `webrtc::data_channel::data_channel_message::DataChannelMessage`
[INFO] [stdout]  --> client/src/session.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use webrtc::data_channel::data_channel_message::DataChannelMessage;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `webrtc::data_channel::RTCDataChannel`
[INFO] [stdout]  --> client/src/session.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use webrtc::data_channel::RTCDataChannel;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `webrtc::interceptor::twcc::receiver::Receiver`
[INFO] [stdout]   --> client/src/session.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use webrtc::interceptor::twcc::receiver::Receiver;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `webrtc::peer_connection::math_rand_alpha`
[INFO] [stdout]   --> client/src/session.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use webrtc::peer_connection::math_rand_alpha;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `webrtc::peer_connection::offer_answer_options::RTCOfferOptions`
[INFO] [stdout]   --> client/src/session.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use webrtc::peer_connection::offer_answer_options::RTCOfferOptions;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `webrtc::peer_connection::peer_connection_state::RTCPeerConnectionState`
[INFO] [stdout]   --> client/src/session.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use webrtc::peer_connection::peer_connection_state::RTCPeerConnectionState;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `webrtc::peer_connection::sdp::sdp_type::RTCSdpType`
[INFO] [stdout]   --> client/src/session.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use webrtc::peer_connection::sdp::sdp_type::RTCSdpType;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `webrtc::peer_connection::sdp::session_description::RTCSessionDescription`
[INFO] [stdout]   --> client/src/session.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use webrtc::peer_connection::sdp::session_description::RTCSessionDescription;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 15.66s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v6.1.2
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "35ad12ae1f53eccca8f0c47313369bbf020bdf84ea349c473431ca5ca89d2b32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35ad12ae1f53eccca8f0c47313369bbf020bdf84ea349c473431ca5ca89d2b32", kill_on_drop: false }`
[INFO] [stdout] 35ad12ae1f53eccca8f0c47313369bbf020bdf84ea349c473431ca5ca89d2b32