[INFO] fetching crate gll 0.0.2...
[INFO] documenting gll-0.0.2 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate gll 0.0.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate gll 0.0.2 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 gll 0.0.2
[INFO] finished tweaking crates.io crate gll 0.0.2
[INFO] tweaked toml for crates.io crate gll 0.0.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 88acedaffc9d4fcd80962b2acb6e80cd74892bbd9d874a86d8979d7012de7082
[INFO] running `Command { std: "docker" "start" "-a" "88acedaffc9d4fcd80962b2acb6e80cd74892bbd9d874a86d8979d7012de7082", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88acedaffc9d4fcd80962b2acb6e80cd74892bbd9d874a86d8979d7012de7082", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88acedaffc9d4fcd80962b2acb6e80cd74892bbd9d874a86d8979d7012de7082", kill_on_drop: false }`
[INFO] [stdout] 88acedaffc9d4fcd80962b2acb6e80cd74892bbd9d874a86d8979d7012de7082
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 82e3da8932bbccf8c5cafda7c9d895500f18efe834552c8fc9928dee05c1ee68
[INFO] running `Command { std: "docker" "start" "-a" "82e3da8932bbccf8c5cafda7c9d895500f18efe834552c8fc9928dee05c1ee68", kill_on_drop: false }`
[INFO] [stderr]    Compiling indexing v0.3.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling gll v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/generate/rust.rs:1477:21
[INFO] [stdout]      |
[INFO] [stdout] 1477 | /                     write!(
[INFO] [stdout] 1478 | |                         s,
[INFO] [stdout] 1479 | |                         "{} _{}: {} => {},",
[INFO] [stdout] 1480 | |                         i,
[INFO] [stdout] ...    |
[INFO] [stdout] 1483 | |                         rule.generate_traverse_shape(true, parse_nodes)
[INFO] [stdout] 1484 | |                     );
[INFO] [stdout]      | |______________________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/generate/rust.rs:1486:17
[INFO] [stdout]      |
[INFO] [stdout] 1486 |                 write!(s, " }}");
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting gll v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.67s
[INFO] running `Command { std: "docker" "inspect" "82e3da8932bbccf8c5cafda7c9d895500f18efe834552c8fc9928dee05c1ee68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82e3da8932bbccf8c5cafda7c9d895500f18efe834552c8fc9928dee05c1ee68", kill_on_drop: false }`
[INFO] [stdout] 82e3da8932bbccf8c5cafda7c9d895500f18efe834552c8fc9928dee05c1ee68