[INFO] fetching crate interfaces2 0.0.5...
[INFO] documenting interfaces2-0.0.5 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate interfaces2 0.0.5 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate interfaces2 0.0.5 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] started tweaking crates.io crate interfaces2 0.0.5
[INFO] finished tweaking crates.io crate interfaces2 0.0.5
[INFO] tweaked toml for crates.io crate interfaces2 0.0.5 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] dda4abd954c3b4978c4e5be46f0f4e30d03518acde4016d36bb69ec31a244314
[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" "dda4abd954c3b4978c4e5be46f0f4e30d03518acde4016d36bb69ec31a244314", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dda4abd954c3b4978c4e5be46f0f4e30d03518acde4016d36bb69ec31a244314", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dda4abd954c3b4978c4e5be46f0f4e30d03518acde4016d36bb69ec31a244314", kill_on_drop: false }`
[INFO] [stdout] dda4abd954c3b4978c4e5be46f0f4e30d03518acde4016d36bb69ec31a244314
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] 71f27a496e6b6531a51cc681f75e7c6a27c4da09514a9c1e3f8076e0e9a3744c
[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" "71f27a496e6b6531a51cc681f75e7c6a27c4da09514a9c1e3f8076e0e9a3744c", kill_on_drop: false }`
[INFO] [stderr]    Compiling pest v0.3.3
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling handlebars v0.29.1
[INFO] [stderr]    Compiling interfaces2 v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> build.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let mut f = try!(File::open(in_path));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> build.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     try!(f.read_to_string(&mut s));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> build.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     try!(handlebars.register_template_string("template", s));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> build.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut f = try!(File::create(out_path));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> build.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     try!(handlebars.renderw("template", &data, &mut f));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting interfaces2 v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.29s
[INFO] running `Command { std: "docker" "inspect" "71f27a496e6b6531a51cc681f75e7c6a27c4da09514a9c1e3f8076e0e9a3744c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71f27a496e6b6531a51cc681f75e7c6a27c4da09514a9c1e3f8076e0e9a3744c", kill_on_drop: false }`
[INFO] [stdout] 71f27a496e6b6531a51cc681f75e7c6a27c4da09514a9c1e3f8076e0e9a3744c