[INFO] cloning repository https://github.com/JacksonCoder/sert-attendance-client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JacksonCoder/sert-attendance-client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJacksonCoder%2Fsert-attendance-client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJacksonCoder%2Fsert-attendance-client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ade0c1e8cd5cca48a0f3a6ed666010aef509559a
[INFO] documenting JacksonCoder/sert-attendance-client 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%2FJacksonCoder%2Fsert-attendance-client" "/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/JacksonCoder/sert-attendance-client 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/JacksonCoder/sert-attendance-client
[INFO] finished tweaking git repo https://github.com/JacksonCoder/sert-attendance-client
[INFO] tweaked toml for git repo https://github.com/JacksonCoder/sert-attendance-client written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/JacksonCoder/sert-attendance-client 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded yansi v0.3.4
[INFO] [stderr]   Downloaded ordermap v0.2.13
[INFO] [stderr]   Downloaded untrusted v0.5.1
[INFO] [stderr]   Downloaded pear v0.0.12
[INFO] [stderr]   Downloaded slab v0.3.0
[INFO] [stderr]   Downloaded gdi32-sys v0.2.0
[INFO] [stderr]   Downloaded same-file v0.1.3
[INFO] [stderr]   Downloaded crossbeam-epoch v0.3.0
[INFO] [stderr]   Downloaded isatty v0.1.6
[INFO] [stderr]   Downloaded state v0.3.3
[INFO] [stderr]   Downloaded lazy_static v1.0.0
[INFO] [stderr]   Downloaded user32-sys v0.2.0
[INFO] [stderr]   Downloaded openssl-sys v0.7.17
[INFO] [stderr]   Downloaded rocket v0.3.6
[INFO] [stderr]   Downloaded idna v0.1.4
[INFO] [stderr]   Downloaded curl v0.2.19
[INFO] [stderr]   Downloaded pnacl-build-helper v1.4.11
[INFO] [stderr]   Downloaded vcpkg v0.2.2
[INFO] [stderr]   Downloaded toml v0.4.5
[INFO] [stderr]   Downloaded serde v1.0.27
[INFO] [stderr]   Downloaded smallvec v0.4.4
[INFO] [stderr]   Downloaded rayon v0.7.1
[INFO] [stderr]   Downloaded url v1.7.0
[INFO] [stderr]   Downloaded redox_syscall v0.1.37
[INFO] [stderr]   Downloaded libressl-pnacl-sys v2.1.6
[INFO] [stderr]   Downloaded lazy_static v0.2.11
[INFO] [stderr]   Downloaded mio v0.6.13
[INFO] [stderr]   Downloaded cfg-if v0.1.2
[INFO] [stderr]   Downloaded rand v0.4.2
[INFO] [stderr]   Downloaded tempdir v0.3.6
[INFO] [stderr]   Downloaded cc v1.0.4
[INFO] [stderr]   Downloaded lazycell v0.6.0
[INFO] [stderr]   Downloaded net2 v0.2.31
[INFO] [stderr]   Downloaded walkdir v1.0.7
[INFO] [stderr]   Downloaded rayon-core v1.4.0
[INFO] [stderr]   Downloaded bytes v0.4.6
[INFO] [stderr]   Downloaded time v0.1.39
[INFO] [stderr]   Downloaded sha1 v0.2.0
[INFO] [stderr]   Downloaded remove_dir_all v0.3.0
[INFO] [stderr]   Downloaded cookie v0.9.2
[INFO] [stderr]   Downloaded ws v0.7.3
[INFO] [stderr]   Downloaded libc v0.2.36
[INFO] [stderr]   Downloaded version_check v0.1.3
[INFO] [stderr]   Downloaded libz-sys v1.0.18
[INFO] [stderr]   Downloaded winapi v0.3.4
[INFO] [stderr]   Downloaded rocket_codegen v0.3.6
[INFO] [stderr]   Downloaded httparse v1.2.4
[INFO] [stderr]   Downloaded curl-sys v0.1.35
[INFO] [stderr]   Downloaded firebase v0.8.0
[INFO] [stderr]   Downloaded unicode-normalization v0.1.5
[INFO] [stderr]   Downloaded log v0.4.1
[INFO] [stderr]   Downloaded bitflags v1.0.1
[INFO] [stderr]   Downloaded pear_codegen v0.0.12
[INFO] [stderr]   Downloaded matches v0.1.6
[INFO] [stderr]   Downloaded hyper v0.10.13
[INFO] [stderr]   Downloaded byteorder v1.2.1
[INFO] [stderr]   Downloaded ring v0.11.0
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] eaebf21256c2c56c7818c5ef1ab7ef6dfd93c839373ab006b7737c4799419e7d
[INFO] running `Command { std: "docker" "start" "-a" "eaebf21256c2c56c7818c5ef1ab7ef6dfd93c839373ab006b7737c4799419e7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eaebf21256c2c56c7818c5ef1ab7ef6dfd93c839373ab006b7737c4799419e7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaebf21256c2c56c7818c5ef1ab7ef6dfd93c839373ab006b7737c4799419e7d", kill_on_drop: false }`
[INFO] [stdout] eaebf21256c2c56c7818c5ef1ab7ef6dfd93c839373ab006b7737c4799419e7d
[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] 928848d0c2df3f237702e82ecc3cc9d9b8c30c75aa76d9cce6e3b057a74d7713
[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" "928848d0c2df3f237702e82ecc3cc9d9b8c30c75aa76d9cce6e3b057a74d7713", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling yansi v0.3.4
[INFO] [stderr]    Compiling cc v1.0.4
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]    Compiling safemem v0.2.0
[INFO] [stderr]    Compiling untrusted v0.5.1
[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/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 httparse v1.2.4
[INFO] [stderr]    Compiling serde v1.0.27
[INFO] [stderr]    Compiling smallvec v0.4.4
[INFO] [stderr]    Compiling ordermap v0.2.13
[INFO] [stderr]    Compiling pear v0.0.12
[INFO] [stderr]     Checking lazycell v0.6.0
[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" "928848d0c2df3f237702e82ecc3cc9d9b8c30c75aa76d9cce6e3b057a74d7713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "928848d0c2df3f237702e82ecc3cc9d9b8c30c75aa76d9cce6e3b057a74d7713", kill_on_drop: false }`
[INFO] [stdout] 928848d0c2df3f237702e82ecc3cc9d9b8c30c75aa76d9cce6e3b057a74d7713