[INFO] fetching crate ipv6_proxy 0.1.18...
[INFO] testing ipv6_proxy-0.1.18 against 1.90.0 for beta-1.91-3
[INFO] extracting crate ipv6_proxy 0.1.18 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate ipv6_proxy 0.1.18
[INFO] finished tweaking crates.io crate ipv6_proxy 0.1.18
[INFO] tweaked toml for crates.io crate ipv6_proxy 0.1.18 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ipv6_proxy 0.1.18 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ipv6_proxy 0.1.18 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07ac1fe213d5da3bf0a467a756a7b6fceb99bfbdbacb324094da3826ae2dbea7
[INFO] running `Command { std: "docker" "start" "-a" "07ac1fe213d5da3bf0a467a756a7b6fceb99bfbdbacb324094da3826ae2dbea7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07ac1fe213d5da3bf0a467a756a7b6fceb99bfbdbacb324094da3826ae2dbea7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07ac1fe213d5da3bf0a467a756a7b6fceb99bfbdbacb324094da3826ae2dbea7", kill_on_drop: false }`
[INFO] [stdout] 07ac1fe213d5da3bf0a467a756a7b6fceb99bfbdbacb324094da3826ae2dbea7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 163fd2a3117d14aeea33cc0b5580e4ab73ef69a0c2f1d4c32e15698bbcf839d5
[INFO] running `Command { std: "docker" "start" "-a" "163fd2a3117d14aeea33cc0b5580e4ab73ef69a0c2f1d4c32e15698bbcf839d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.85
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[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling http-body-util v0.1.2
[INFO] [stderr]    Compiling matchers v0.1.0
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
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[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling async-trait v0.1.80
[INFO] [stderr]    Compiling tokio v1.38.0
[INFO] [stderr]    Compiling pin-project v1.1.5
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling xerr v0.1.14
[INFO] [stderr]    Compiling genv v0.1.10
[INFO] [stderr]    Compiling loginit v0.1.13
[INFO] [stderr]    Compiling hyper v1.3.1
[INFO] [stderr]    Compiling tower v0.4.13
[INFO] [stderr]    Compiling hyper-util v0.1.5
[INFO] [stderr]    Compiling jemallocator v0.5.4
[INFO] [stderr]    Compiling ipv6_proxy v0.1.18 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_closure)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `async_closure` has been stable since `1.85.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_closure` has been stable since 1.85.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_closure)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ipv6_proxy` (bin "ipv6_proxy") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "163fd2a3117d14aeea33cc0b5580e4ab73ef69a0c2f1d4c32e15698bbcf839d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "163fd2a3117d14aeea33cc0b5580e4ab73ef69a0c2f1d4c32e15698bbcf839d5", kill_on_drop: false }`
[INFO] [stdout] 163fd2a3117d14aeea33cc0b5580e4ab73ef69a0c2f1d4c32e15698bbcf839d5
