[INFO] fetching crate zenoh-flow-plugin 0.5.0-alpha.4...
[INFO] checking zenoh-flow-plugin-0.5.0-alpha.4 against try#213ba58857e42241934d114390dfcd0779fc4662 for pr-148943
[INFO] extracting crate zenoh-flow-plugin 0.5.0-alpha.4 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate zenoh-flow-plugin 0.5.0-alpha.4
[INFO] finished tweaking crates.io crate zenoh-flow-plugin 0.5.0-alpha.4
[INFO] tweaked toml for crates.io crate zenoh-flow-plugin 0.5.0-alpha.4 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zenoh-flow-plugin 0.5.0-alpha.4 on toolchain 213ba58857e42241934d114390dfcd0779fc4662
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+213ba58857e42241934d114390dfcd0779fc4662" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+213ba58857e42241934d114390dfcd0779fc4662" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 437 packages to latest compatible versions
[INFO] [stderr]       Adding async-std v1.12.0 (available: v1.13.2)
[INFO] [stderr]       Adding env_logger v0.10.2 (available: v0.11.8)
[INFO] [stderr]       Adding erased-serde v0.3.26 (available: v0.3.31)
[INFO] [stderr]       Adding flume v0.10.14 (available: v0.11.1)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding serde v1.0.160 (available: v1.0.228)
[INFO] [stderr]       Adding serde_derive v1.0.160 (available: v1.0.228)
[INFO] [stderr]       Adding serde_json v1.0.99 (available: v1.0.145)
[INFO] [stderr]       Adding serde_yaml v0.9.25 (available: v0.9.34+deprecated)
[INFO] [stderr]       Adding typetag v0.2.8 (available: v0.2.21)
[INFO] [stderr]       Adding typetag-impl v0.2.8 (available: v0.2.21)
[INFO] [stderr]       Adding zenoh v0.7.2-rc (available: v1.6.2)
[INFO] [stderr]       Adding zenoh-collections v0.7.2-rc (available: v1.6.2)
[INFO] [stderr]       Adding zenoh-core v0.7.2-rc (available: v1.6.2)
[INFO] [stderr]       Adding zenoh-ext v0.7.2-rc (available: v1.6.2)
[INFO] [stderr]       Adding zenoh-plugin-trait v0.7.2-rc (available: v1.6.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+213ba58857e42241934d114390dfcd0779fc4662" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+213ba58857e42241934d114390dfcd0779fc4662" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 134e1de8ce6ee6ad565dcfc568494c55b1d0bf417d34ffc39ed1f0e6d2cc4d41
[INFO] running `Command { std: "docker" "start" "-a" "134e1de8ce6ee6ad565dcfc568494c55b1d0bf417d34ffc39ed1f0e6d2cc4d41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "134e1de8ce6ee6ad565dcfc568494c55b1d0bf417d34ffc39ed1f0e6d2cc4d41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "134e1de8ce6ee6ad565dcfc568494c55b1d0bf417d34ffc39ed1f0e6d2cc4d41", kill_on_drop: false }`
[INFO] [stdout] 134e1de8ce6ee6ad565dcfc568494c55b1d0bf417d34ffc39ed1f0e6d2cc4d41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+213ba58857e42241934d114390dfcd0779fc4662" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 416de6cc878a780342b994b9f2bbc0fddec15130362dfe385986fdd7dc2dbddc
[INFO] running `Command { std: "docker" "start" "-a" "416de6cc878a780342b994b9f2bbc0fddec15130362dfe385986fdd7dc2dbddc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
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[INFO] [stderr]     Checking unsafe-libyaml v0.2.11
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[INFO] [stderr]    Compiling git-version-macro v0.3.9
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[INFO] [stderr]    Compiling zenoh v0.7.2-rc
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[INFO] [stderr]     Checking crossbeam-deque v0.8.6
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[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]    Compiling tokio-tungstenite v0.18.0
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[INFO] [stderr]     Checking pkcs8 v0.9.0
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[INFO] [stderr]    Compiling async-rustls v0.4.2
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]     Checking keccak v0.1.5
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking twox-hash v1.6.3
[INFO] [stderr]    Compiling sha3 v0.10.8
[INFO] [stderr]    Compiling zenoh-link-tls v0.7.2-rc
[INFO] [stderr]    Compiling zenoh-link-quic v0.7.2-rc
[INFO] [stderr]     Checking zenoh-link-unixsock_stream v0.7.2-rc
[INFO] [stderr]     Checking pkcs1 v0.4.1
[INFO] [stderr]    Compiling zenoh-link-ws v0.7.2-rc
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/zenoh-link-ws-0.7.2-rc/src/unicast.rs:95:21
[INFO] [stdout]    |
[INFO] [stdout] 95 |         match guard.next().await {
[INFO] [stdout]    |                     ^^^^ multiple `next` found
[INFO] [stdout]    |
[INFO] [stdout]    = note: candidate #1 is defined in an impl of the trait `async_std::stream::StreamExt` for the type `T`
[INFO] [stdout]    = note: candidate #2 is defined in an impl of the trait `futures_util::StreamExt` for the type `T`
[INFO] [stdout] help: disambiguate the method for candidate #1
[INFO] [stdout]    |
[INFO] [stdout] 95 -         match guard.next().await {
[INFO] [stdout] 95 +         match async_std::stream::StreamExt::next(&mut guard).await {
[INFO] [stdout]    |
[INFO] [stdout] help: disambiguate the method for candidate #2
[INFO] [stdout]    |
[INFO] [stdout] 95 -         match guard.next().await {
[INFO] [stdout] 95 +         match futures_util::StreamExt::next(&mut guard).await {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/zenoh-link-ws-0.7.2-rc/src/unicast.rs:95:21
[INFO] [stdout]    |
[INFO] [stdout] 95 |         match guard.next().await {
[INFO] [stdout]    |                     ^^^^ multiple `next` found
[INFO] [stdout]    |
[INFO] [stdout]    = note: candidate #1 is defined in an impl of the trait `async_std::stream::StreamExt` for the type `T`
[INFO] [stdout]    = note: candidate #2 is defined in an impl of the trait `futures_util::StreamExt` for the type `T`
[INFO] [stdout] help: disambiguate the method for candidate #1
[INFO] [stdout]    |
[INFO] [stdout] 95 -         match guard.next().await {
[INFO] [stdout] 95 +         match async_std::stream::StreamExt::next(&mut guard).await {
[INFO] [stdout]    |
[INFO] [stdout] help: disambiguate the method for candidate #2
[INFO] [stdout]    |
[INFO] [stdout] 95 -         match guard.next().await {
[INFO] [stdout] 95 +         match futures_util::StreamExt::next(&mut guard).await {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zenoh-link-ws` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zenoh-link-ws` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "416de6cc878a780342b994b9f2bbc0fddec15130362dfe385986fdd7dc2dbddc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "416de6cc878a780342b994b9f2bbc0fddec15130362dfe385986fdd7dc2dbddc", kill_on_drop: false }`
[INFO] [stdout] 416de6cc878a780342b994b9f2bbc0fddec15130362dfe385986fdd7dc2dbddc