[INFO] cloning repository https://github.com/retep007/rustybox [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/retep007/rustybox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fretep007%2Frustybox", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fretep007%2Frustybox'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 66aa7400ecaf7abbdc9136253c3f8a63217bd69b [INFO] documenting retep007/rustybox against beta-2020-08-29 for beta-1.47-rustdoc-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fretep007%2Frustybox" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/retep007/rustybox 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 git repo https://github.com/retep007/rustybox [INFO] finished tweaking git repo https://github.com/retep007/rustybox [INFO] tweaked toml for git repo https://github.com/retep007/rustybox written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/retep007/rustybox 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 rustyline v5.0.4 [INFO] [stderr] Downloaded unicode-segmentation v1.5.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] d3f630341a26b2e1dfe645788e2974c890d9c9424841524239e0a71f64b82755 [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" "d3f630341a26b2e1dfe645788e2974c890d9c9424841524239e0a71f64b82755", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d3f630341a26b2e1dfe645788e2974c890d9c9424841524239e0a71f64b82755", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d3f630341a26b2e1dfe645788e2974c890d9c9424841524239e0a71f64b82755", kill_on_drop: false }` [INFO] [stdout] d3f630341a26b2e1dfe645788e2974c890d9c9424841524239e0a71f64b82755 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 52ddf8ecf57a96291bda646e63f83609d5f0428c3852899afb706fe6349d4f57 [INFO] running `Command { std: "docker" "start" "-a" "52ddf8ecf57a96291bda646e63f83609d5f0428c3852899afb706fe6349d4f57", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling ucd-trie v0.1.2 [INFO] [stderr] Compiling nix v0.15.0 [INFO] [stderr] Checking unicode-segmentation v1.5.0 [INFO] [stderr] Checking utf8parse v0.1.1 [INFO] [stderr] Checking pest v2.1.2 [INFO] [stderr] Compiling pest_meta v2.1.2 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking nix v0.14.1 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking backtrace-sys v0.1.32 [INFO] [stderr] Checking dirs-sys v0.3.4 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking env_logger v0.6.2 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking backtrace v0.3.40 [INFO] [stderr] Checking dirs v2.0.2 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking failure v0.1.6 [INFO] [stderr] Compiling pest_generator v2.1.1 [INFO] [stderr] Checking chrono v0.4.9 [INFO] [stderr] Checking pretty_env_logger v0.3.1 [INFO] [stderr] Compiling pest_derive v2.1.0 [INFO] [stderr] Checking ctrlc v3.1.3 [INFO] [stderr] Checking rustyline v5.0.4 [INFO] [stderr] Documenting crabbox v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0658]: type ascription is experimental [INFO] [stdout] --> src/rcrab.rs:87:28 [INFO] [stdout] | [INFO] [stdout] 87 | stdin.read(buf: &mut [u8]) [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #23416 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: Compilation failed, aborting rustdoc [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [INFO] [stderr] error: Could not document `crabbox`. [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name crabbox src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern clap=/opt/rustwide/target/debug/deps/libclap-7ab137635301d103.rmeta --extern ctrlc=/opt/rustwide/target/debug/deps/libctrlc-8dc2cd638f094198.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-3ee0d19a06aff61c.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-69d9a7f018cb28c7.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-bb89fbd3dbee15b4.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-177ed64d1e834860.rmeta --extern pest=/opt/rustwide/target/debug/deps/libpest-90cbea465b5bdd5e.rmeta --extern pest_derive=/opt/rustwide/target/debug/deps/libpest_derive-3db2fcd7ef53a25b.so --extern pretty_env_logger=/opt/rustwide/target/debug/deps/libpretty_env_logger-2eb8b6fc78d31810.rmeta --extern rustyline=/opt/rustwide/target/debug/deps/librustyline-1866325f9c6fdc3a.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1) [INFO] running `Command { std: "docker" "inspect" "52ddf8ecf57a96291bda646e63f83609d5f0428c3852899afb706fe6349d4f57", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "52ddf8ecf57a96291bda646e63f83609d5f0428c3852899afb706fe6349d4f57", kill_on_drop: false }` [INFO] [stdout] 52ddf8ecf57a96291bda646e63f83609d5f0428c3852899afb706fe6349d4f57