[INFO] fetching crate embly-wrapper 0.0.2...
[INFO] documenting embly-wrapper-0.0.2 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate embly-wrapper 0.0.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate embly-wrapper 0.0.2 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/.cargo/config
[INFO] started tweaking crates.io crate embly-wrapper 0.0.2
[INFO] finished tweaking crates.io crate embly-wrapper 0.0.2
[INFO] tweaked toml for crates.io crate embly-wrapper 0.0.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate embly-wrapper 0.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-derive v0.3.0
[INFO] [stderr]   Downloaded plain v0.2.3
[INFO] [stderr]   Downloaded object v0.14.1
[INFO] [stderr]   Downloaded target-lexicon v0.8.1
[INFO] [stderr]   Downloaded xfailure v0.1.0
[INFO] [stderr]   Downloaded protobuf-codegen v2.10.0
[INFO] [stderr]   Downloaded rpassword v4.0.3
[INFO] [stderr]   Downloaded parity-wasm v0.40.3
[INFO] [stderr]   Downloaded scroll v0.9.2
[INFO] [stderr]   Downloaded protobuf v2.10.0
[INFO] [stderr]   Downloaded libc v0.2.59
[INFO] [stderr]   Downloaded flate2 v1.0.12
[INFO] [stderr]   Downloaded goblin v0.0.24
[INFO] [stderr]   Downloaded human-size v0.4.0
[INFO] [stderr]   Downloaded cranelift-entity v0.46.1
[INFO] [stderr]   Downloaded lucet-runtime v0.4.1
[INFO] [stderr]   Downloaded minisign v0.5.14
[INFO] [stderr]   Downloaded scroll_derive v0.9.5
[INFO] [stderr]   Downloaded lucet-wasi v0.4.1
[INFO] [stderr]   Downloaded protoc-rust v2.10.0
[INFO] [stderr]   Downloaded protoc v2.10.0
[INFO] [stderr]   Downloaded getrandom v0.1.3
[INFO] [stderr]   Downloaded lucet-module v0.4.1
[INFO] [stderr]   Downloaded lucet-runtime-internals v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 209e84f3b121e520b073dfb7ee27b8f826e18368f72cfef100db66edf94ada71
[INFO] running `Command { std: "docker" "start" "-a" "209e84f3b121e520b073dfb7ee27b8f826e18368f72cfef100db66edf94ada71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "209e84f3b121e520b073dfb7ee27b8f826e18368f72cfef100db66edf94ada71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "209e84f3b121e520b073dfb7ee27b8f826e18368f72cfef100db66edf94ada71", kill_on_drop: false }`
[INFO] [stdout] 209e84f3b121e520b073dfb7ee27b8f826e18368f72cfef100db66edf94ada71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b8a2de33d77d0a5ef48dd8228bcde3c699126e5eac42a06219ff060c187a1418
[INFO] running `Command { std: "docker" "start" "-a" "b8a2de33d77d0a5ef48dd8228bcde3c699126e5eac42a06219ff060c187a1418", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.59
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling protobuf v2.10.0
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking parity-wasm v0.40.3
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]     Checking cranelift-entity v0.46.1
[INFO] [stderr]     Checking xfailure v0.1.0
[INFO] [stderr]    Compiling lucet-wasi v0.4.1
[INFO] [stderr]     Checking human-size v0.4.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling lucet-runtime-internals v0.4.1
[INFO] [stderr]    Compiling lucet-runtime v0.4.1
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling protoc v2.10.0
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]    Compiling raw-cpuid v6.1.0
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking scrypt v0.2.0
[INFO] [stderr]    Compiling getrandom v0.1.3
[INFO] [stderr]     Checking flate2 v1.0.12
[INFO] [stderr]     Checking rpassword v4.0.3
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking minisign v0.5.14
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking goblin v0.0.24
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling protobuf-codegen v2.10.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling num-derive v0.3.0
[INFO] [stderr]    Compiling protoc-rust v2.10.0
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]    Compiling embly-wrapper v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]    Compiling target-lexicon v0.8.1
[INFO] [stderr]     Checking object v0.14.1
[INFO] [stderr]     Checking lucet-module v0.4.1
[INFO] [stderr]  Documenting embly-wrapper v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/hostcalls.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 | /     (match rest {
[INFO] [stdout] 85 | |         Ok(_) => host::__WASI_ESUCCESS,
[INFO] [stdout] 86 | |         Err(err) => err.to_wasi_err(),
[INFO] [stdout] 87 | |     } as u16)
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 84 |     match rest {
[INFO] [stdout] 85 |         Ok(_) => host::__WASI_ESUCCESS,
[INFO] [stdout] 86 |         Err(err) => err.to_wasi_err(),
[INFO] [stdout] 87 |     } as u16
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "b8a2de33d77d0a5ef48dd8228bcde3c699126e5eac42a06219ff060c187a1418", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8a2de33d77d0a5ef48dd8228bcde3c699126e5eac42a06219ff060c187a1418", kill_on_drop: false }`
[INFO] [stdout] b8a2de33d77d0a5ef48dd8228bcde3c699126e5eac42a06219ff060c187a1418