[INFO] fetching crate newsie 0.1.1...
[INFO] documenting newsie-0.1.1 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate newsie 0.1.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate newsie 0.1.1 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] removed /workspace/builds/worker-5-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate newsie 0.1.1
[INFO] finished tweaking crates.io crate newsie 0.1.1
[INFO] tweaked toml for crates.io crate newsie 0.1.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate newsie 0.1.1 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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.102
[INFO] [stderr]   Downloaded rustls v0.21.5
[INFO] [stderr]   Downloaded rustls-webpki v0.101.1
[INFO] [stderr]   Downloaded ratatui v0.21.0
[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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6f650695dd9efa9f235ff4d6acc7c60017d2c74a0f6015ab8b086ee4c58a4e5
[INFO] running `Command { std: "docker" "start" "-a" "a6f650695dd9efa9f235ff4d6acc7c60017d2c74a0f6015ab8b086ee4c58a4e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6f650695dd9efa9f235ff4d6acc7c60017d2c74a0f6015ab8b086ee4c58a4e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6f650695dd9efa9f235ff4d6acc7c60017d2c74a0f6015ab8b086ee4c58a4e5", kill_on_drop: false }`
[INFO] [stdout] a6f650695dd9efa9f235ff4d6acc7c60017d2c74a0f6015ab8b086ee4c58a4e5
[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" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96a725ec1dcbd60a553a142f07f3e47a9e6c9371e7a4ce69508fa6ddb46603dc
[INFO] running `Command { std: "docker" "start" "-a" "96a725ec1dcbd60a553a142f07f3e47a9e6c9371e7a4ce69508fa6ddb46603dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling signal-hook v0.3.15
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling serde v1.0.171
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling rustls v0.21.5
[INFO] [stderr]     Checking percent-encoding v2.3.0
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]    Compiling serde_json v1.0.102
[INFO] [stderr]     Checking form_urlencoded v1.2.0
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking itoa v1.0.8
[INFO] [stderr]     Checking ryu v1.0.14
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking url v2.4.0
[INFO] [stderr]    Compiling syn v2.0.25
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking directories v5.0.1
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.26.1
[INFO] [stderr]     Checking ratatui v0.21.0
[INFO] [stderr]    Compiling serde_derive v1.0.171
[INFO] [stderr]     Checking rustls-webpki v0.101.1
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking rustls-webpki v0.100.1
[INFO] [stderr]     Checking webpki-roots v0.23.1
[INFO] [stderr]     Checking ureq v2.7.1
[INFO] [stderr]  Documenting newsie v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iter_intersperse)]
[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 document `newsie`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type bin --crate-name newsie src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=8decd43e3f21668d -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-9c47a32640685bf7.rmeta --extern crossterm=/opt/rustwide/target/debug/deps/libcrossterm-cf8515c81fa4d2b7.rmeta --extern directories=/opt/rustwide/target/debug/deps/libdirectories-db036a796e67878c.rmeta --extern ratatui=/opt/rustwide/target/debug/deps/libratatui-1d30fd0d859461cd.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-be842829d1e98c88.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-fa246e3d07e0c06a.rmeta --extern ureq=/opt/rustwide/target/debug/deps/libureq-b7e0a49143863455.rmeta --cap-lints=warn --crate-version 0.1.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "96a725ec1dcbd60a553a142f07f3e47a9e6c9371e7a4ce69508fa6ddb46603dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96a725ec1dcbd60a553a142f07f3e47a9e6c9371e7a4ce69508fa6ddb46603dc", kill_on_drop: false }`
[INFO] [stdout] 96a725ec1dcbd60a553a142f07f3e47a9e6c9371e7a4ce69508fa6ddb46603dc
