[INFO] crate gluon_vm 0.15.1 is already in cache
[INFO] documenting gluon_vm-0.15.1 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate gluon_vm 0.15.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate gluon_vm 0.15.1 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gluon_vm 0.15.1
[INFO] finished tweaking crates.io crate gluon_vm 0.15.1
[INFO] tweaked toml for crates.io crate gluon_vm 0.15.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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" "+394e1b40d264aa6928811919c1124fa248e7d802" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f87eff6cebafdd5d65683614e9a79f0fc4a71b5c6428f75457595d36ad77490b
[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" "f87eff6cebafdd5d65683614e9a79f0fc4a71b5c6428f75457595d36ad77490b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f87eff6cebafdd5d65683614e9a79f0fc4a71b5c6428f75457595d36ad77490b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f87eff6cebafdd5d65683614e9a79f0fc4a71b5c6428f75457595d36ad77490b", kill_on_drop: false }`
[INFO] [stdout] f87eff6cebafdd5d65683614e9a79f0fc4a71b5c6428f75457595d36ad77490b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9954e833da09e19a13dc7737a52a08f0b6f962857346a6d9f73a89656f0f6665
[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" "9954e833da09e19a13dc7737a52a08f0b6f962857346a6d9f73a89656f0f6665", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]     Checking collect-mac v0.1.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking strsim v0.9.3
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling gluon_vm v0.15.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking frunk_core v0.3.1
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking archery v0.3.0
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking pretty v0.10.0
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking rpds v0.7.0
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking ena v0.13.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking backtrace v0.3.49
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking ahash v0.2.18
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling gluon_codegen v0.15.1
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking codespan v0.3.0
[INFO] [stderr]     Checking codespan-reporting v0.3.0
[INFO] [stderr]     Checking gluon_base v0.15.1
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking gluon_check v0.15.1
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]  Documenting gluon_vm v0.15.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `impl core::future::future::Future`, which is not FFI-safe
[INFO] [stdout]    --> src/channel.rs:295:14
[INFO] [stdout]     |
[INFO] [stdout] 295 |         ) -> impl Future<Output = RuntimeResult<OpaqueValue<RootedThread, IO<Pushed<A>>>, Error>>
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]     = note: opaque types have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[T]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/array.rs:14:33
[INFO] [stdout]    |
[INFO] [stdout] 14 | /// Fills the same role as Box<[T]> but takes only 8 bytes on the stack instead of 16
[INFO] [stdout]    |                                 ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 33s
[INFO] running `Command { std: "docker" "inspect" "9954e833da09e19a13dc7737a52a08f0b6f962857346a6d9f73a89656f0f6665", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9954e833da09e19a13dc7737a52a08f0b6f962857346a6d9f73a89656f0f6665", kill_on_drop: false }`
[INFO] [stdout] 9954e833da09e19a13dc7737a52a08f0b6f962857346a6d9f73a89656f0f6665