[INFO] cloning repository https://github.com/cairesvs/rubeeru
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cairesvs/rubeeru" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcairesvs%2Frubeeru", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcairesvs%2Frubeeru'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5757e836c514169d9ae5857dec4e7d503b8997e6
[INFO] documenting cairesvs/rubeeru against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcairesvs%2Frubeeru" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cairesvs/rubeeru on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cairesvs/rubeeru
[INFO] finished tweaking git repo https://github.com/cairesvs/rubeeru
[INFO] tweaked toml for git repo https://github.com/cairesvs/rubeeru written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/cairesvs/rubeeru already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded either v1.3.0
[INFO] [stderr]   Downloaded rocket_contrib v0.3.3
[INFO] [stderr]   Downloaded nalgebra v0.12.3
[INFO] [stderr]   Downloaded clamp v0.1.0
[INFO] [stderr]   Downloaded serde_json v1.0.4
[INFO] [stderr]   Downloaded serde_derive v1.0.16
[INFO] [stderr]   Downloaded geo v0.6.3
[INFO] [stderr]   Downloaded geojson v0.9.0
[INFO] [stderr]   Downloaded serde v1.0.16
[INFO] [stderr]   Downloaded spade v1.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27c678b075bf420d8d218d015cfe1565983b208acc69989317e5a37eb3ac639c
[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" "27c678b075bf420d8d218d015cfe1565983b208acc69989317e5a37eb3ac639c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27c678b075bf420d8d218d015cfe1565983b208acc69989317e5a37eb3ac639c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27c678b075bf420d8d218d015cfe1565983b208acc69989317e5a37eb3ac639c", kill_on_drop: false }`
[INFO] [stdout] 27c678b075bf420d8d218d015cfe1565983b208acc69989317e5a37eb3ac639c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 901af17bd3ce26b0605da5a8f9dd88e96a12a110fa43908db938f6b53610bc84
[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" "901af17bd3ce26b0605da5a8f9dd88e96a12a110fa43908db938f6b53610bc84", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.32
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]    Compiling either v1.3.0
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling lazy_static v0.2.9
[INFO] [stderr]    Compiling futures v0.1.16
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]    Compiling yansi v0.3.4
[INFO] [stderr]    Compiling typenum v1.9.0
[INFO] [stderr]    Compiling matches v0.1.6
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking serde v1.0.16
[INFO] [stderr]    Compiling unicode-normalization v0.1.5
[INFO] [stderr]    Compiling safemem v0.2.0
[INFO] [stderr]     Checking percent-encoding v1.0.0
[INFO] [stderr]    Compiling byteorder v1.1.0
[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/yansi-0.3.4/src/lib.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature="nightly", feature(const_atomic_bool_new))]
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking untrusted v0.5.1
[INFO] [stderr]    Compiling log v0.3.8
[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] error: could not compile `yansi`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "901af17bd3ce26b0605da5a8f9dd88e96a12a110fa43908db938f6b53610bc84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "901af17bd3ce26b0605da5a8f9dd88e96a12a110fa43908db938f6b53610bc84", kill_on_drop: false }`
[INFO] [stdout] 901af17bd3ce26b0605da5a8f9dd88e96a12a110fa43908db938f6b53610bc84
