[INFO] fetching crate quik-crypto 0.0.8...
[INFO] checking quik-crypto-0.0.8 against 1.95.0 for pr-155915
[INFO] extracting crate quik-crypto 0.0.8 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate quik-crypto 0.0.8
[INFO] finished tweaking crates.io crate quik-crypto 0.0.8
[INFO] tweaked toml for crates.io crate quik-crypto 0.0.8 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate quik-crypto 0.0.8 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 31 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding hkdf v0.12.4 (available: v0.13.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quik-core v0.0.8
[INFO] [stderr]   Downloaded quik-util v0.0.8
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24407eb1dc0ad638f982ce41e8bd5e1d19f089701ec4bf4a8d2bf31a8112d028
[INFO] running `Command { std: "docker" "start" "-a" "24407eb1dc0ad638f982ce41e8bd5e1d19f089701ec4bf4a8d2bf31a8112d028", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24407eb1dc0ad638f982ce41e8bd5e1d19f089701ec4bf4a8d2bf31a8112d028", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24407eb1dc0ad638f982ce41e8bd5e1d19f089701ec4bf4a8d2bf31a8112d028", kill_on_drop: false }`
[INFO] [stdout] 24407eb1dc0ad638f982ce41e8bd5e1d19f089701ec4bf4a8d2bf31a8112d028
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68d3c7db88971cf1a095b7ecf864d2ab5ef7cb6f483db7db26ebdbeea65e4a32
[INFO] running `Command { std: "docker" "start" "-a" "68d3c7db88971cf1a095b7ecf864d2ab5ef7cb6f483db7db26ebdbeea65e4a32", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]     Checking quik-util v0.0.8
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking quik-core v0.0.8
[INFO] [stderr]     Checking hkdf v0.12.4
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/quik-core-0.0.8/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_as_chunks)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `quik-core` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "68d3c7db88971cf1a095b7ecf864d2ab5ef7cb6f483db7db26ebdbeea65e4a32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68d3c7db88971cf1a095b7ecf864d2ab5ef7cb6f483db7db26ebdbeea65e4a32", kill_on_drop: false }`
[INFO] [stdout] 68d3c7db88971cf1a095b7ecf864d2ab5ef7cb6f483db7db26ebdbeea65e4a32