[INFO] fetching crate fam 0.1.5...
[INFO] documenting fam-0.1.5 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate fam 0.1.5 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate fam 0.1.5 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 fam 0.1.5
[INFO] finished tweaking crates.io crate fam 0.1.5
[INFO] tweaked toml for crates.io crate fam 0.1.5 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] 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] 807fb560b3e1af720642aa0d2d279c056144a64958307be0604e93c52ef8b5e5
[INFO] running `Command { std: "docker" "start" "-a" "807fb560b3e1af720642aa0d2d279c056144a64958307be0604e93c52ef8b5e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "807fb560b3e1af720642aa0d2d279c056144a64958307be0604e93c52ef8b5e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "807fb560b3e1af720642aa0d2d279c056144a64958307be0604e93c52ef8b5e5", kill_on_drop: false }`
[INFO] [stdout] 807fb560b3e1af720642aa0d2d279c056144a64958307be0604e93c52ef8b5e5
[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] 48ab113652fd5a834ae1dd02aff9ac7c531cffe315fe4e804599d108157cffe1
[INFO] running `Command { std: "docker" "start" "-a" "48ab113652fd5a834ae1dd02aff9ac7c531cffe315fe4e804599d108157cffe1", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]    Compiling pest v2.6.0
[INFO] [stderr]    Compiling pest_meta v2.6.0
[INFO] [stderr]    Compiling pest_generator v2.6.0
[INFO] [stderr]    Compiling pest_derive v2.6.0
[INFO] [stderr]     Checking handlebars v4.3.6
[INFO] [stderr]  Documenting fam v0.1.5 (/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(box_syntax)]
[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 `fam`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name fam src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=75abaad5a93400d9 -L dependency=/opt/rustwide/target/debug/deps --extern handlebars=/opt/rustwide/target/debug/deps/libhandlebars-d756b47dd396af04.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-7f5aa0c9c57e86c5.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-9f766820a7671020.rmeta --cap-lints=warn --crate-version 0.1.5` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "48ab113652fd5a834ae1dd02aff9ac7c531cffe315fe4e804599d108157cffe1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48ab113652fd5a834ae1dd02aff9ac7c531cffe315fe4e804599d108157cffe1", kill_on_drop: false }`
[INFO] [stdout] 48ab113652fd5a834ae1dd02aff9ac7c531cffe315fe4e804599d108157cffe1
