[INFO] cloning repository https://github.com/phiresky/rga
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/phiresky/rga" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphiresky%2Frga", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphiresky%2Frga'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8b4a7ab38c4c8e4feddba98c925c93baa22b330f
[INFO] documenting phiresky/rga 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%2Fphiresky%2Frga" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/phiresky/rga 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/phiresky/rga
[INFO] finished tweaking git repo https://github.com/phiresky/rga
[INFO] tweaked toml for git repo https://github.com/phiresky/rga written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/phiresky/rga 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 dyn-clonable v0.9.0
[INFO] [stderr]   Downloaded zstd v0.5.2+zstd.1.4.5
[INFO] [stderr]   Downloaded zstd-sys v1.4.16+zstd.1.4.5
[INFO] [stderr]   Downloaded dyn-clonable-impl v0.9.0
[INFO] [stderr]   Downloaded pretty-bytes v0.2.2
[INFO] [stderr]   Downloaded schemars_derive v0.8.0-alpha-2
[INFO] [stderr]   Downloaded schemars v0.8.0-alpha-2
[INFO] [stderr]   Downloaded zstd-safe v2.0.4+zstd.1.4.5
[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" "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] fefd274e272579fecf3ad930bb2dfac8fa4baa7d10734852fde26059016428fb
[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" "fefd274e272579fecf3ad930bb2dfac8fa4baa7d10734852fde26059016428fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fefd274e272579fecf3ad930bb2dfac8fa4baa7d10734852fde26059016428fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fefd274e272579fecf3ad930bb2dfac8fa4baa7d10734852fde26059016428fb", kill_on_drop: false }`
[INFO] [stdout] fefd274e272579fecf3ad930bb2dfac8fa4baa7d10734852fde26059016428fb
[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" "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] f6daedb36e80c67b27c938f0490525418c3776d22ab6327941d7bae21d13c797
[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" "f6daedb36e80c67b27c938f0490525418c3776d22ab6327941d7bae21d13c797", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]    Compiling schemars v0.8.0-alpha-2
[INFO] [stderr]     Checking dyn-clone v1.0.1
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking path-clean v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking dirs-sys-next v0.1.0
[INFO] [stderr]     Checking filetime v0.2.10
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking encoding_rs_io v0.1.7
[INFO] [stderr]     Checking pretty-bytes v0.2.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking directories-next v1.0.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.2
[INFO] [stderr]     Checking tar v0.4.28
[INFO] [stderr]     Checking lexical-core v0.6.2
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking num-complex v0.2.4
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking size_format v1.0.2
[INFO] [stderr]    Compiling zstd-sys v1.4.16+zstd.1.4.5
[INFO] [stderr]    Compiling bzip2-sys v0.1.9+1.0.8
[INFO] [stderr]    Compiling lmdb-rkv-sys v0.11.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.18.0
[INFO] [stderr]    Compiling lzma-sys v0.1.16
[INFO] [stderr]     Checking xz2 v0.1.6
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking zip v0.5.5
[INFO] [stderr]     Checking lmdb-rkv v0.14.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive_internals v0.25.0
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling paste-impl v0.1.16
[INFO] [stderr]    Compiling schemars_derive v0.8.0-alpha-2
[INFO] [stderr]    Compiling dyn-clonable-impl v0.9.0
[INFO] [stderr]    Compiling derive_more v0.99.7
[INFO] [stderr]     Checking dyn-clonable v0.9.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking paste v0.1.16
[INFO] [stderr]     Checking rusqlite v0.23.1
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking serde v1.0.111
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking rkv v0.10.4
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking tree_magic_mini v1.0.0
[INFO] [stderr]     Checking zstd-safe v2.0.4+zstd.1.4.5
[INFO] [stderr]     Checking zstd v0.5.2+zstd.1.4.5
[INFO] [stderr]     Checking ripgrep_all v0.9.7-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting ripgrep_all v0.9.7-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(negative_impls)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(negative_impls)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Context`
[INFO] [stdout]  --> src/adapters/custom.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use anyhow::{Context, Result};
[INFO] [stdout]   |              ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]  --> src/adapters/spawning.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use regex::Regex;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CachingWriter`, `print_bytes`
[INFO] [stdout]  --> src/preproc.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::{print_bytes, print_dur, CachingWriter};
[INFO] [stdout]   |             ^^^^^^^^^^^             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `ripgrep_all`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name ripgrep_all src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-70b362b0d3f6c020.rmeta --extern bincode=/opt/rustwide/target/debug/deps/libbincode-b7fb0abda9f5227b.rmeta --extern bzip2=/opt/rustwide/target/debug/deps/libbzip2-84b5f21a1c5fe166.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-05ad7d8f66de038c.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-a727a35c79da3b9e.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-7db7e12d77cbb462.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-c4f01973a5de788f.rmeta --extern derive_more=/opt/rustwide/target/debug/deps/libderive_more-8b11c316c52d5155.so --extern directories_next=/opt/rustwide/target/debug/deps/libdirectories_next-bd47c14aa1b75e37.rmeta --extern dyn_clonable=/opt/rustwide/target/debug/deps/libdyn_clonable-a1e2ab5356282ffc.rmeta --extern dyn_clone=/opt/rustwide/target/debug/deps/libdyn_clone-c9e7ba06b523db1c.rmeta --extern encoding_rs=/opt/rustwide/target/debug/deps/libencoding_rs-13ea840233da42a3.rmeta --extern encoding_rs_io=/opt/rustwide/target/debug/deps/libencoding_rs_io-5bb0a7dacd0a49d9.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-ba52de02b3eca864.rmeta --extern flate2=/opt/rustwide/target/debug/deps/libflate2-1cdbb30f12f71d48.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-057d1e4bc2673252.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-db88f49d9e5662e7.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-69d9a7f018cb28c7.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-7dbd9d0c2ed2b4df.rmeta --extern paste=/opt/rustwide/target/debug/deps/libpaste-98d1f372bfbb041d.rmeta --extern path_clean=/opt/rustwide/target/debug/deps/libpath_clean-f2e8ef607d79f7de.rmeta --extern pretty_bytes=/opt/rustwide/target/debug/deps/libpretty_bytes-018e6c8d7b6bbea4.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-2b0bd3e10b985586.rmeta --extern rkv=/opt/rustwide/target/debug/deps/librkv-6d07bb9e87831b23.rmeta --extern rusqlite=/opt/rustwide/target/debug/deps/librusqlite-68d522941cdba177.rmeta --extern schemars=/opt/rustwide/target/debug/deps/libschemars-8e1542a4bcadc80b.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-fcef99294049e6c6.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-3702aa70e7f20ca5.rmeta --extern size_format=/opt/rustwide/target/debug/deps/libsize_format-0283449279e9edea.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-622a3af1cafb02b1.rmeta --extern tar=/opt/rustwide/target/debug/deps/libtar-e129e944011b6e3a.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-b282c76689828aae.rmeta --extern tree_magic=/opt/rustwide/target/debug/deps/libtree_magic_mini-5b7cf8e27228b35d.rmeta --extern xz2=/opt/rustwide/target/debug/deps/libxz2-73e68c02c3ea8bdc.rmeta --extern zip=/opt/rustwide/target/debug/deps/libzip-80f52bd6e9f46477.rmeta --extern zstd=/opt/rustwide/target/debug/deps/libzstd-c4d52557905601ed.rmeta --cap-lints=warn --crate-version 0.9.7-alpha.0` (exit code: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f6daedb36e80c67b27c938f0490525418c3776d22ab6327941d7bae21d13c797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6daedb36e80c67b27c938f0490525418c3776d22ab6327941d7bae21d13c797", kill_on_drop: false }`
[INFO] [stdout] f6daedb36e80c67b27c938f0490525418c3776d22ab6327941d7bae21d13c797