[INFO] cloning repository https://github.com/mouri111/kunai
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mouri111/kunai" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmouri111%2Fkunai", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmouri111%2Fkunai'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2692a3435e264cc8e832e76a3593d2d77f64c4a
[INFO] documenting mouri111/kunai against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmouri111%2Fkunai" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mouri111/kunai on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mouri111/kunai
[INFO] finished tweaking git repo https://github.com/mouri111/kunai
[INFO] tweaked toml for git repo https://github.com/mouri111/kunai written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/mouri111/kunai already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ena v0.13.1
[INFO] [stderr]   Downloaded rustc-rayon-core v0.3.0
[INFO] [stderr]   Downloaded rustc-ap-graphviz v610.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_lexer v610.0.0
[INFO] [stderr]   Downloaded home v0.5.1
[INFO] [stderr]   Downloaded rustc-ap-rustc_errors v610.0.0
[INFO] [stderr]   Downloaded rustfmt-nightly v1.4.11
[INFO] [stderr]   Downloaded rustc-ap-arena v610.0.0
[INFO] [stderr]   Downloaded annotate-snippets v0.6.1
[INFO] [stderr]   Downloaded rustc-ap-rustc_macros v610.0.0
[INFO] [stderr]   Downloaded rustc-ap-syntax v610.0.0
[INFO] [stderr]   Downloaded rustc-ap-syntax_pos v610.0.0
[INFO] [stderr]   Downloaded rustc-rayon v0.3.0
[INFO] [stderr]   Downloaded rustversion v1.0.0
[INFO] [stderr]   Downloaded rustc-ap-serialize v610.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_target v610.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_data_structures v610.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_index v610.0.0
[INFO] [stderr]   Downloaded rustfmt-config_proc_macro v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9393ebc43efddb750f6dcd993ef9d69300d0e7f8f4d829d312ea755b7762b917
[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" "9393ebc43efddb750f6dcd993ef9d69300d0e7f8f4d829d312ea755b7762b917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9393ebc43efddb750f6dcd993ef9d69300d0e7f8f4d829d312ea755b7762b917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9393ebc43efddb750f6dcd993ef9d69300d0e7f8f4d829d312ea755b7762b917", kill_on_drop: false }`
[INFO] [stdout] 9393ebc43efddb750f6dcd993ef9d69300d0e7f8f4d829d312ea755b7762b917
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a358907dd0d763110e4aa7a894076d50852a2b77b3496583cd68e7f330bc72ec
[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" "a358907dd0d763110e4aa7a894076d50852a2b77b3496583cd68e7f330bc72ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-rayon-core v0.3.0
[INFO] [stderr]     Checking rustc-ap-graphviz v610.0.0
[INFO] [stderr]     Checking new_debug_unreachable v1.0.3
[INFO] [stderr]    Compiling curl v0.4.25
[INFO] [stderr]    Compiling procedural-masquerade v0.1.6
[INFO] [stderr]    Compiling rustc-ap-rustc_target v610.0.0
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]    Compiling rustc-ap-syntax v610.0.0
[INFO] [stderr]     Checking rustc-workspace-hack v1.0.0
[INFO] [stderr]    Compiling rustfmt-nightly v1.4.11
[INFO] [stderr]     Checking home v0.5.1
[INFO] [stderr]     Checking bytecount v0.6.0
[INFO] [stderr]     Checking shell-escape v0.1.4
[INFO] [stderr]     Checking opener v0.4.1
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-graphviz-610.0.0/lib.rs:277:1
[INFO] [stdout]     |
[INFO] [stdout] 277 | #![feature(rustc_private, nll)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking bytesize v1.0.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking lock_api v0.3.2
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr] error: could not compile `rustc-ap-graphviz` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lock_api-0.3.2/src/lib.rs:89:42
[INFO] [stdout]    |
[INFO] [stdout] 89 | #![cfg_attr(feature = "nightly", feature(const_fn))]
[INFO] [stdout]    |                                          ^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lock_api-0.3.2/src/lib.rs:89:34
[INFO] [stdout]    |
[INFO] [stdout] 89 | #![cfg_attr(feature = "nightly", feature(const_fn))]
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crossbeam-utils-0.6.5/src/lib.rs:32:34
[INFO] [stdout]    |
[INFO] [stdout] 32 | #![cfg_attr(feature = "nightly", feature(alloc))]
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crossbeam-utils-0.6.5/src/lib.rs:33:34
[INFO] [stdout]    |
[INFO] [stdout] 33 | #![cfg_attr(feature = "nightly", feature(cfg_target_has_atomic))]
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a358907dd0d763110e4aa7a894076d50852a2b77b3496583cd68e7f330bc72ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a358907dd0d763110e4aa7a894076d50852a2b77b3496583cd68e7f330bc72ec", kill_on_drop: false }`
[INFO] [stdout] a358907dd0d763110e4aa7a894076d50852a2b77b3496583cd68e7f330bc72ec
