[INFO] fetching crate math_64 0.1.0...
[INFO] documenting math_64-0.1.0 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate math_64 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate math_64 0.1.0 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 math_64 0.1.0
[INFO] finished tweaking crates.io crate math_64 0.1.0
[INFO] tweaked toml for crates.io crate math_64 0.1.0 written to /workspace/builds/worker-4-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]  Downloading crates ...
[INFO] [stderr]   Downloaded mem_64 v0.1.0
[INFO] [stderr]   Downloaded log_64 v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1be75d83acf62c3221b2e915e1f33b2a7c8b1ae7e7051b9f621d097b85ef92ef
[INFO] running `Command { std: "docker" "start" "-a" "1be75d83acf62c3221b2e915e1f33b2a7c8b1ae7e7051b9f621d097b85ef92ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1be75d83acf62c3221b2e915e1f33b2a7c8b1ae7e7051b9f621d097b85ef92ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1be75d83acf62c3221b2e915e1f33b2a7c8b1ae7e7051b9f621d097b85ef92ef", kill_on_drop: false }`
[INFO] [stdout] 1be75d83acf62c3221b2e915e1f33b2a7c8b1ae7e7051b9f621d097b85ef92ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 75d6178badca3acdeaf3cdd33cc5346db5af7a740194bcc909feb682f5a36598
[INFO] running `Command { std: "docker" "start" "-a" "75d6178badca3acdeaf3cdd33cc5346db5af7a740194bcc909feb682f5a36598", kill_on_drop: false }`
[INFO] [stderr]     Checking mem_64 v0.1.0
[INFO] [stderr]     Checking log_64 v0.1.1
[INFO] [stderr]  Documenting math_64 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(core_intrinsics)]
[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 `math_64`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name math_64 src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=19f7545a18bc8abf -L dependency=/opt/rustwide/target/debug/deps --extern log_64=/opt/rustwide/target/debug/deps/liblog_64-6e82e14f46498270.rmeta --extern mem_64=/opt/rustwide/target/debug/deps/libmem_64-6970663e36799f85.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "75d6178badca3acdeaf3cdd33cc5346db5af7a740194bcc909feb682f5a36598", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75d6178badca3acdeaf3cdd33cc5346db5af7a740194bcc909feb682f5a36598", kill_on_drop: false }`
[INFO] [stdout] 75d6178badca3acdeaf3cdd33cc5346db5af7a740194bcc909feb682f5a36598
