[INFO] fetching crate kernel_guard 0.1.0...
[INFO] documenting kernel_guard-0.1.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate kernel_guard 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate kernel_guard 0.1.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kernel_guard 0.1.0
[INFO] finished tweaking crates.io crate kernel_guard 0.1.0
[INFO] tweaked toml for crates.io crate kernel_guard 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crate_interface v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ac9fa0866e19cf57c92f78081f56f1def2b46ee3accdf6d1e6cfd80d3235e55
[INFO] running `Command { std: "docker" "start" "-a" "0ac9fa0866e19cf57c92f78081f56f1def2b46ee3accdf6d1e6cfd80d3235e55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ac9fa0866e19cf57c92f78081f56f1def2b46ee3accdf6d1e6cfd80d3235e55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ac9fa0866e19cf57c92f78081f56f1def2b46ee3accdf6d1e6cfd80d3235e55", kill_on_drop: false }`
[INFO] [stdout] 0ac9fa0866e19cf57c92f78081f56f1def2b46ee3accdf6d1e6cfd80d3235e55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60c5a7dd8054e49101a9730aedc760c5e9bdf82b8ff1cc19b9b2f5ed9b8a59e8
[INFO] running `Command { std: "docker" "start" "-a" "60c5a7dd8054e49101a9730aedc760c5e9bdf82b8ff1cc19b9b2f5ed9b8a59e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling crate_interface v0.1.1
[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-6f17d22bba15001f/crate_interface-0.1.1/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(iter_next_chunk)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crate_interface` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "60c5a7dd8054e49101a9730aedc760c5e9bdf82b8ff1cc19b9b2f5ed9b8a59e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60c5a7dd8054e49101a9730aedc760c5e9bdf82b8ff1cc19b9b2f5ed9b8a59e8", kill_on_drop: false }`
[INFO] [stdout] 60c5a7dd8054e49101a9730aedc760c5e9bdf82b8ff1cc19b9b2f5ed9b8a59e8
[INFO] documenting kernel_guard-0.1.0 against beta-2024-02-10 for beta-1.77-rustdoc-1
[INFO] extracting crate kernel_guard 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate kernel_guard 0.1.0 on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kernel_guard 0.1.0
[INFO] finished tweaking crates.io crate kernel_guard 0.1.0
[INFO] tweaked toml for crates.io crate kernel_guard 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3aa0cc31b8d5a479ae8e68c41aa032d7459ab031ed2dd3a1bc98b71641edcded
[INFO] running `Command { std: "docker" "start" "-a" "3aa0cc31b8d5a479ae8e68c41aa032d7459ab031ed2dd3a1bc98b71641edcded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3aa0cc31b8d5a479ae8e68c41aa032d7459ab031ed2dd3a1bc98b71641edcded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3aa0cc31b8d5a479ae8e68c41aa032d7459ab031ed2dd3a1bc98b71641edcded", kill_on_drop: false }`
[INFO] [stdout] 3aa0cc31b8d5a479ae8e68c41aa032d7459ab031ed2dd3a1bc98b71641edcded
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f49f45e7478698839d2f2c442c4f1539dc8887f7eb621943139dbe421465b83
[INFO] running `Command { std: "docker" "start" "-a" "4f49f45e7478698839d2f2c442c4f1539dc8887f7eb621943139dbe421465b83", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling crate_interface v0.1.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crate_interface-0.1.1/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(iter_next_chunk)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crate_interface` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "4f49f45e7478698839d2f2c442c4f1539dc8887f7eb621943139dbe421465b83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f49f45e7478698839d2f2c442c4f1539dc8887f7eb621943139dbe421465b83", kill_on_drop: false }`
[INFO] [stdout] 4f49f45e7478698839d2f2c442c4f1539dc8887f7eb621943139dbe421465b83
