[INFO] cloning repository https://github.com/kdar/rustup
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kdar/rustup" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdar%2Frustup", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdar%2Frustup'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 64fcea0654e8b570dfffef7f940f850a64156133
[INFO] documenting kdar/rustup 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%2Fkdar%2Frustup" "/workspace/builds/worker-32/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-32/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kdar/rustup 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/kdar/rustup
[INFO] finished tweaking git repo https://github.com/kdar/rustup
[INFO] tweaked toml for git repo https://github.com/kdar/rustup written to /workspace/builds/worker-32/source/Cargo.toml
[INFO] crate git repo https://github.com/kdar/rustup 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mime v0.1.0
[INFO] [stderr]   Downloaded regex v0.1.41
[INFO] [stderr]   Downloaded regex-syntax v0.2.2
[INFO] [stderr]   Downloaded log v0.3.2
[INFO] [stderr]   Downloaded time v0.1.32
[INFO] [stderr]   Downloaded toml v0.1.22
[INFO] [stderr]   Downloaded bitflags v0.3.2
[INFO] [stderr]   Downloaded env_logger v0.3.1
[INFO] [stderr]   Downloaded memchr v0.1.6
[INFO] [stderr]   Downloaded language-tags v0.0.7
[INFO] [stderr]   Downloaded aho-corasick v0.3.2
[INFO] [stderr]   Downloaded url v0.2.37
[INFO] [stderr]   Downloaded httparse v0.1.6
[INFO] [stderr]   Downloaded unicase v1.0.0
[INFO] [stderr]   Downloaded libc v0.1.10
[INFO] [stderr]   Downloaded lazy_static v0.1.14
[INFO] [stderr]   Downloaded hyper v0.6.13
[INFO] [stderr]   Downloaded winapi v0.2.3
[INFO] [stderr]   Downloaded gcc v0.3.13
[INFO] [stderr]   Downloaded openssl-sys v0.6.5
[INFO] [stderr]   Downloaded openssl v0.6.5
[INFO] [stderr]   Downloaded rustbar v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] 6d3e0c02124bb96355237e5e64258748d464c7ff6a00d3dc138c370f9da54780
[INFO] running `Command { std: "docker" "start" "-a" "6d3e0c02124bb96355237e5e64258748d464c7ff6a00d3dc138c370f9da54780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d3e0c02124bb96355237e5e64258748d464c7ff6a00d3dc138c370f9da54780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d3e0c02124bb96355237e5e64258748d464c7ff6a00d3dc138c370f9da54780", kill_on_drop: false }`
[INFO] [stdout] 6d3e0c02124bb96355237e5e64258748d464c7ff6a00d3dc138c370f9da54780
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] [stdout] f4d7adaf634568b102df8e6c988d563adcccb4dae639d77afcb1bff2675ecdc6
[INFO] running `Command { std: "docker" "start" "-a" "f4d7adaf634568b102df8e6c988d563adcccb4dae639d77afcb1bff2675ecdc6", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.1.10
[INFO] [stderr]    Compiling gcc v0.3.13
[INFO] [stderr]    Compiling pkg-config v0.3.5
[INFO] [stderr]     Checking rustc-serialize v0.3.16
[INFO] [stderr]     Checking winapi v0.2.3
[INFO] [stderr]     Checking matches v0.1.2
[INFO] [stderr]     Checking bitflags v0.3.2
[INFO] [stderr]     Checking lazy_static v0.1.14
[INFO] [stderr]     Checking regex-syntax v0.2.2
[INFO] [stderr]     Checking unicase v1.0.0
[INFO] [stderr]     Checking traitobject v0.0.1
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking language-tags v0.0.7
[INFO] [stderr]     Checking httparse v0.1.6
[INFO] [stderr]     Checking rustbar v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.1.4
[INFO] [stdout] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustbar-0.2.0/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate libc;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[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/rustbar-0.2.0/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(libc)]
[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, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error[E0642]: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.16/src/serialize.rs:145:45
[INFO] [stdout]     |
[INFO] [stdout] 145 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustbar` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0642`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "f4d7adaf634568b102df8e6c988d563adcccb4dae639d77afcb1bff2675ecdc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4d7adaf634568b102df8e6c988d563adcccb4dae639d77afcb1bff2675ecdc6", kill_on_drop: false }`
[INFO] [stdout] f4d7adaf634568b102df8e6c988d563adcccb4dae639d77afcb1bff2675ecdc6