[INFO] cloning repository https://github.com/CCBlueX/RconBruteforcer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CCBlueX/RconBruteforcer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCCBlueX%2FRconBruteforcer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCCBlueX%2FRconBruteforcer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9297bcf8b06b71cebb0e7ae0828b58f90d169eb5
[INFO] documenting CCBlueX/RconBruteforcer against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCCBlueX%2FRconBruteforcer" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CCBlueX/RconBruteforcer on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CCBlueX/RconBruteforcer
[INFO] finished tweaking git repo https://github.com/CCBlueX/RconBruteforcer
[INFO] tweaked toml for git repo https://github.com/CCBlueX/RconBruteforcer written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/CCBlueX/RconBruteforcer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded err-derive v0.3.0
[INFO] [stderr]   Downloaded terminal_size v0.1.16
[INFO] [stderr]   Downloaded tokio-macros v1.1.0
[INFO] [stderr]   Downloaded no-std-compat v0.3.0
[INFO] [stderr]   Downloaded bruteforce-macros v0.2.0
[INFO] [stderr]   Downloaded bruteforce v0.2.0
[INFO] [stderr]   Downloaded rcon v0.4.0
[INFO] [stderr]   Downloaded tokio v1.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ced9d848e871c24677ec57e3b59e9765687e177d06dce8f89ad0730fb57ed8d
[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" "7ced9d848e871c24677ec57e3b59e9765687e177d06dce8f89ad0730fb57ed8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ced9d848e871c24677ec57e3b59e9765687e177d06dce8f89ad0730fb57ed8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ced9d848e871c24677ec57e3b59e9765687e177d06dce8f89ad0730fb57ed8d", kill_on_drop: false }`
[INFO] [stdout] 7ced9d848e871c24677ec57e3b59e9765687e177d06dce8f89ad0730fb57ed8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "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] 064f669a444f3e8d550012b8ec008cedc46ee94615350937cace34109ca8f03c
[INFO] running `Command { std: "docker" "start" "-a" "064f669a444f3e8d550012b8ec008cedc46ee94615350937cace34109ca8f03c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling no-std-compat v0.3.0
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.3
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling bruteforce-macros v0.2.0
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling err-derive v0.3.0
[INFO] [stderr]     Checking bruteforce v0.2.0
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bruteforce-0.2.0/src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     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 stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bruteforce-0.2.0/src/lib.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | / #![feature(
[INFO] [stdout] 5  | |     const_fn,
[INFO] [stdout] 6  | |     test,
[INFO] [stdout] 7  | |     generators,
[INFO] [stdout] ...  |
[INFO] [stdout] 11 | |     proc_macro_hygiene
[INFO] [stdout] 12 | | )]
[INFO] [stdout]    | |__^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `const_if_match` has been stable since 1.46.0 and no longer requires an attribute to enable
[INFO] [stdout]    = help: the feature `const_panic` has been stable since 1.57.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bruteforce-0.2.0/src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     test,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bruteforce-0.2.0/src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     generator_trait,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 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] [stderr] error: could not compile `bruteforce` due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "064f669a444f3e8d550012b8ec008cedc46ee94615350937cace34109ca8f03c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "064f669a444f3e8d550012b8ec008cedc46ee94615350937cace34109ca8f03c", kill_on_drop: false }`
[INFO] [stdout] 064f669a444f3e8d550012b8ec008cedc46ee94615350937cace34109ca8f03c