[INFO] fetching crate upstash-redis-rs 0.1.2...
[INFO] documenting upstash-redis-rs-0.1.2 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate upstash-redis-rs 0.1.2 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate upstash-redis-rs 0.1.2 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 upstash-redis-rs 0.1.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate upstash-redis-rs 0.1.2
[INFO] tweaked toml for crates.io crate upstash-redis-rs 0.1.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate upstash-redis-rs 0.1.2 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]  Downloading crates ...
[INFO] [stderr]   Downloaded bumpalo v3.12.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 2723b342d57f4ed2ad2770f8794de3bf459b3236e78255ae7d7c66ca9a34650f
[INFO] running `Command { std: "docker" "start" "-a" "2723b342d57f4ed2ad2770f8794de3bf459b3236e78255ae7d7c66ca9a34650f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2723b342d57f4ed2ad2770f8794de3bf459b3236e78255ae7d7c66ca9a34650f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2723b342d57f4ed2ad2770f8794de3bf459b3236e78255ae7d7c66ca9a34650f", kill_on_drop: false }`
[INFO] [stdout] 2723b342d57f4ed2ad2770f8794de3bf459b3236e78255ae7d7c66ca9a34650f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5bc1a6dbc9103786c606771d5e07178d3b138b189ee9ee226b70e35fff9ee87
[INFO] running `Command { std: "docker" "start" "-a" "b5bc1a6dbc9103786c606771d5e07178d3b138b189ee9ee226b70e35fff9ee87", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling tokio v1.28.0
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling openssl v0.10.52
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]     Checking try-lock v0.2.4
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]    Compiling paste v1.0.12
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking encoding_rs v0.8.32
[INFO] [stderr]     Checking ipnet v2.7.2
[INFO] [stderr]     Checking base64 v0.21.0
[INFO] [stderr]    Compiling openssl-sys v0.9.87
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking h2 v0.3.18
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking hyper v0.14.26
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.17
[INFO] [stderr]  Documenting upstash-redis-rs v0.1.2 (/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(macro_metavar_expr)]
[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 `upstash-redis-rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name upstash_redis_rs src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=884f404617b079d2 -L dependency=/opt/rustwide/target/debug/deps --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-2ef7fcb2c3dbf60e.so --extern paste=/opt/rustwide/target/debug/deps/libpaste-c60c46dfb3a8a062.so --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-67b57e3531c5d79e.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-a4179f9793353e85.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-49df7b8732000e01.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-23f30f4ae48416f7.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-656c87949c1bc541.rmeta --cap-lints=warn --crate-version 0.1.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "b5bc1a6dbc9103786c606771d5e07178d3b138b189ee9ee226b70e35fff9ee87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5bc1a6dbc9103786c606771d5e07178d3b138b189ee9ee226b70e35fff9ee87", kill_on_drop: false }`
[INFO] [stdout] b5bc1a6dbc9103786c606771d5e07178d3b138b189ee9ee226b70e35fff9ee87
