[INFO] fetching crate inkwell 0.1.0-llvm10sample...
[INFO] documenting inkwell-0.1.0-llvm10sample against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate inkwell 0.1.0-llvm10sample into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate inkwell 0.1.0-llvm10sample on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate inkwell 0.1.0-llvm10sample
[INFO] finished tweaking crates.io crate inkwell 0.1.0-llvm10sample
[INFO] tweaked toml for crates.io crate inkwell 0.1.0-llvm10sample written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate inkwell 0.1.0-llvm10sample already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e029b77b9792871e9464dd4de62cc4ab9b6df306dab382b66bd2adc87274306
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1e029b77b9792871e9464dd4de62cc4ab9b6df306dab382b66bd2adc87274306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e029b77b9792871e9464dd4de62cc4ab9b6df306dab382b66bd2adc87274306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e029b77b9792871e9464dd4de62cc4ab9b6df306dab382b66bd2adc87274306", kill_on_drop: false }`
[INFO] [stdout] 1e029b77b9792871e9464dd4de62cc4ab9b6df306dab382b66bd2adc87274306
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74541323d99da0f2bd4e873f0fc8e46665be59f54805c8da9d1c3c12168b648a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "74541323d99da0f2bd4e873f0fc8e46665be59f54805c8da9d1c3c12168b648a", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking instant v0.1.4
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]    Compiling inkwell v0.1.0-llvm10sample (/opt/rustwide/workdir)
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking lock_api v0.4.0
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]    Compiling llvm-sys v100.0.1
[INFO] [stderr]    Compiling inkwell_internals v0.2.0
[INFO] [stderr]  Documenting inkwell v0.1.0-llvm10sample (/opt/rustwide/workdir)
[INFO] [stdout] error: One of the LLVM feature flags must be provided: llvm3-6 llvm3-7 llvm3-8 llvm3-9 llvm4-0 llvm5-0 llvm6-0 llvm7-0 llvm8-0 llvm9-0 llvm10-0 
[INFO] [stdout]   --> src/lib.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         compile_error!(concat!("One of the LLVM feature flags must be provided: ", $($all, " "),*));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75 | assert_unique_used_features!{"llvm3-6", "llvm3-7", "llvm3-8", "llvm3-9", "llvm4-0", "llvm5-0", "llvm6-0", "llvm7-0", "llvm8-0", "llvm9-0", "llvm10-0"}
[INFO] [stdout]    | ------------------------------------------------------------------------------------------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate::values::metadata_value::FIRST_CUSTOM_METADATA_KIND_ID`
[INFO] [stdout]   --> src/values/mod.rs:36:56
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub use crate::values::metadata_value::{MetadataValue, FIRST_CUSTOM_METADATA_KIND_ID};
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `FIRST_CUSTOM_METADATA_KIND_ID` in `values::metadata_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `inkwell`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name inkwell src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="target-aarch64"' --cfg 'feature="target-all"' --cfg 'feature="target-amdgpu"' --cfg 'feature="target-arm"' --cfg 'feature="target-bpf"' --cfg 'feature="target-hexagon"' --cfg 'feature="target-lanai"' --cfg 'feature="target-mips"' --cfg 'feature="target-msp430"' --cfg 'feature="target-nvptx"' --cfg 'feature="target-powerpc"' --cfg 'feature="target-riscv"' --cfg 'feature="target-sparc"' --cfg 'feature="target-systemz"' --cfg 'feature="target-webassembly"' --cfg 'feature="target-x86"' --cfg 'feature="target-xcore"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern either=/opt/rustwide/target/debug/deps/libeither-9bd75207ce9b518c.rmeta --extern inkwell_internals=/opt/rustwide/target/debug/deps/libinkwell_internals-4d664baf51a77e37.so --extern libc=/opt/rustwide/target/debug/deps/liblibc-209a5b199c8fd1c4.rmeta --extern llvm_sys=/opt/rustwide/target/debug/deps/libllvm_sys-2bd4dcf58b2a0c77.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-67de5f6a6498d9d2.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-da5a4edd737bbac1.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-5103ea9f59ed634c.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "74541323d99da0f2bd4e873f0fc8e46665be59f54805c8da9d1c3c12168b648a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74541323d99da0f2bd4e873f0fc8e46665be59f54805c8da9d1c3c12168b648a", kill_on_drop: false }`
[INFO] [stdout] 74541323d99da0f2bd4e873f0fc8e46665be59f54805c8da9d1c3c12168b648a