[INFO] fetching crate texcore 0.7.2...
[INFO] testing texcore-0.7.2 against 1.75.0 for beta-1.76-1
[INFO] extracting crate texcore 0.7.2 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate texcore 0.7.2 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate texcore 0.7.2
[INFO] finished tweaking crates.io crate texcore 0.7.2
[INFO] tweaked toml for crates.io crate texcore 0.7.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate texcore 0.7.2 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded terminfo v0.7.5
[INFO] [stderr]   Downloaded tectonic_docmodel v0.2.0
[INFO] [stderr]   Downloaded tectonic_xetex_layout v0.2.1
[INFO] [stderr]   Downloaded tectonic_dep_support v0.1.0
[INFO] [stderr]   Downloaded derive_builder v0.10.2
[INFO] [stderr]   Downloaded derive_builder_macro v0.10.2
[INFO] [stderr]   Downloaded tectonic_errors v0.2.0
[INFO] [stderr]   Downloaded texcore_traits v0.1.0
[INFO] [stderr]   Downloaded tectonic_geturl v0.3.1
[INFO] [stderr]   Downloaded tectonic_cfg_support v0.1.4
[INFO] [stderr]   Downloaded texcore_derive v0.1.0
[INFO] [stderr]   Downloaded tectonic_bridge_freetype2 v0.2.0
[INFO] [stderr]   Downloaded tectonic_bridge_icu v0.2.0
[INFO] [stderr]   Downloaded tectonic_engine_xdvipdfmx v0.4.0
[INFO] [stderr]   Downloaded watchexec v1.17.2
[INFO] [stderr]   Downloaded tectonic_bundles v0.3.0
[INFO] [stderr]   Downloaded tectonic_xdv v0.2.1
[INFO] [stderr]   Downloaded pest_derive v2.5.7
[INFO] [stderr]   Downloaded pest_meta v2.5.7
[INFO] [stderr]   Downloaded pinot v0.1.5
[INFO] [stderr]   Downloaded command-group v1.0.8
[INFO] [stderr]   Downloaded rustix v0.37.13
[INFO] [stderr]   Downloaded tectonic v0.12.0
[INFO] [stderr]   Downloaded tectonic_pdf_io v0.4.0
[INFO] [stderr]   Downloaded tectonic_bridge_harfbuzz v0.2.7
[INFO] [stderr]   Downloaded linux-raw-sys v0.3.3
[INFO] [stderr]   Downloaded tectonic_bridge_flate v0.1.6
[INFO] [stderr]   Downloaded tectonic_engine_xetex v0.4.1
[INFO] [stderr]   Downloaded openssl v0.10.50
[INFO] [stderr]   Downloaded tera v1.18.1
[INFO] [stderr]   Downloaded pest v2.5.7
[INFO] [stderr]   Downloaded clearscreen v1.0.11
[INFO] [stderr]   Downloaded tectonic_engine_spx2html v0.2.1
[INFO] [stderr]   Downloaded ignore v0.4.17
[INFO] [stderr]   Downloaded tectonic_engine_bibtex v0.1.4
[INFO] [stderr]   Downloaded pest_generator v2.5.7
[INFO] [stderr]   Downloaded globset v0.4.6
[INFO] [stderr]   Downloaded derive_builder_core v0.10.2
[INFO] [stderr]   Downloaded tectonic_io_base v0.4.1
[INFO] [stderr]   Downloaded tectonic_bridge_core v0.3.1
[INFO] [stderr]   Downloaded openssl-sys v0.9.85
[INFO] [stderr]   Downloaded tectonic_status_base v0.2.0
[INFO] [stderr]   Downloaded tectonic_bridge_graphite2 v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1af5fd9c6e75d13eeca3e8a6708208bf5155de0cd45a83c8a92e9c4e417a1e74
[INFO] running `Command { std: "docker" "start" "-a" "1af5fd9c6e75d13eeca3e8a6708208bf5155de0cd45a83c8a92e9c4e417a1e74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1af5fd9c6e75d13eeca3e8a6708208bf5155de0cd45a83c8a92e9c4e417a1e74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1af5fd9c6e75d13eeca3e8a6708208bf5155de0cd45a83c8a92e9c4e417a1e74", kill_on_drop: false }`
[INFO] [stdout] 1af5fd9c6e75d13eeca3e8a6708208bf5155de0cd45a83c8a92e9c4e417a1e74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76df32a35363f19fde2c5078d59faa5e56e4d1d4314c3a3bff97fae9c92ecd01
[INFO] running `Command { std: "docker" "start" "-a" "76df32a35363f19fde2c5078d59faa5e56e4d1d4314c3a3bff97fae9c92ecd01", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]    Compiling texcore_derive v0.1.0
[INFO] [stderr]    Compiling texcore_traits v0.1.0
[INFO] [stderr]    Compiling texcore v0.7.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(doc_auto_cfg)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 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 `texcore` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "76df32a35363f19fde2c5078d59faa5e56e4d1d4314c3a3bff97fae9c92ecd01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76df32a35363f19fde2c5078d59faa5e56e4d1d4314c3a3bff97fae9c92ecd01", kill_on_drop: false }`
[INFO] [stdout] 76df32a35363f19fde2c5078d59faa5e56e4d1d4314c3a3bff97fae9c92ecd01
