[INFO] fetching crate rstb 0.6.0...
[INFO] documenting rstb-0.6.0 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate rstb 0.6.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate rstb 0.6.0 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rstb 0.6.0
[INFO] finished tweaking crates.io crate rstb 0.6.0
[INFO] tweaked toml for crates.io crate rstb 0.6.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded include-flate-codegen v0.1.4
[INFO] [stderr]   Downloaded join_str v0.1.0
[INFO] [stderr]   Downloaded all_asserts v2.3.1
[INFO] [stderr]   Downloaded include-flate-codegen-exports v0.1.4
[INFO] [stderr]   Downloaded binrw_derive v0.9.0
[INFO] [stderr]   Downloaded binrw v0.9.2
[INFO] [stderr]   Downloaded include-flate v0.2.0
[INFO] [stderr]   Downloaded yaz0 v0.3.0
[INFO] [stderr]   Downloaded almost v0.2.0
[INFO] [stderr]   Downloaded roead v0.20.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b6df2c4b916f1ef89f211fbce3afc31308931bfd677a8412a683e4323e660b0
[INFO] running `Command { std: "docker" "start" "-a" "4b6df2c4b916f1ef89f211fbce3afc31308931bfd677a8412a683e4323e660b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b6df2c4b916f1ef89f211fbce3afc31308931bfd677a8412a683e4323e660b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b6df2c4b916f1ef89f211fbce3afc31308931bfd677a8412a683e4323e660b0", kill_on_drop: false }`
[INFO] [stdout] 4b6df2c4b916f1ef89f211fbce3afc31308931bfd677a8412a683e4323e660b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 429dc635645abd2a4bb9cbc222025ef150056e09d55c22b19747e38516e323a4
[INFO] running `Command { std: "docker" "start" "-a" "429dc635645abd2a4bb9cbc222025ef150056e09d55c22b19747e38516e323a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking crc-catalog v1.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]     Checking crc v2.1.0
[INFO] [stderr]  Documenting rstb v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | #![feature(exclusive_range_pattern)]
[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 document `rstb`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name rstb src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=719d9341fa2c2696 -L dependency=/opt/rustwide/target/debug/deps --extern crc=/opt/rustwide/target/debug/deps/libcrc-be35f2d95ca5fb37.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-b839f3f80c6bc09b.rmeta --cap-lints=warn --crate-version 0.6.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "429dc635645abd2a4bb9cbc222025ef150056e09d55c22b19747e38516e323a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "429dc635645abd2a4bb9cbc222025ef150056e09d55c22b19747e38516e323a4", kill_on_drop: false }`
[INFO] [stdout] 429dc635645abd2a4bb9cbc222025ef150056e09d55c22b19747e38516e323a4
