[INFO] fetching crate aligned-cmov 2.0.0...
[INFO] documenting aligned-cmov-2.0.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate aligned-cmov 2.0.0 into /workspace/builds/worker-95/source
[INFO] validating manifest of crates.io crate aligned-cmov 2.0.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aligned-cmov 2.0.0
[INFO] finished tweaking crates.io crate aligned-cmov 2.0.0
[INFO] tweaked toml for crates.io crate aligned-cmov 2.0.0 written to /workspace/builds/worker-95/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75160ef199cd6b28c354d4a59412cf438b1e2505a31b24f7dfbd850f99fec845
[INFO] running `Command { std: "docker" "start" "-a" "75160ef199cd6b28c354d4a59412cf438b1e2505a31b24f7dfbd850f99fec845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75160ef199cd6b28c354d4a59412cf438b1e2505a31b24f7dfbd850f99fec845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75160ef199cd6b28c354d4a59412cf438b1e2505a31b24f7dfbd850f99fec845", kill_on_drop: false }`
[INFO] [stdout] 75160ef199cd6b28c354d4a59412cf438b1e2505a31b24f7dfbd850f99fec845
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e27840b4c0797ff0fcbb7b320fa72caf4416654ffdc14a7069394f4d5e54943
[INFO] running `Command { std: "docker" "start" "-a" "9e27840b4c0797ff0fcbb7b320fa72caf4416654ffdc14a7069394f4d5e54943", kill_on_drop: false }`
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking aligned-array v1.0.1
[INFO] [stderr]  Documenting aligned-cmov v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(llvm_asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `aligned-cmov`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name aligned_cmov src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern aligned_array=/opt/rustwide/target/debug/deps/libaligned_array-fcc101802ba9c5f3.rmeta --extern generic_array=/opt/rustwide/target/debug/deps/libgeneric_array-0f2ff2e379a5743d.rmeta --cap-lints=warn --crate-version 2.0.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "9e27840b4c0797ff0fcbb7b320fa72caf4416654ffdc14a7069394f4d5e54943", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e27840b4c0797ff0fcbb7b320fa72caf4416654ffdc14a7069394f4d5e54943", kill_on_drop: false }`
[INFO] [stdout] 9e27840b4c0797ff0fcbb7b320fa72caf4416654ffdc14a7069394f4d5e54943
