[INFO] cloning repository https://github.com/erochest/straw-boss
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/erochest/straw-boss" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferochest%2Fstraw-boss", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferochest%2Fstraw-boss'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e7eed4cb1b88978d9292396b622a40db78fc01a6
[INFO] documenting erochest/straw-boss 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%2Ferochest%2Fstraw-boss" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/erochest/straw-boss 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/erochest/straw-boss
[INFO] finished tweaking git repo https://github.com/erochest/straw-boss
[INFO] tweaked toml for git repo https://github.com/erochest/straw-boss written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/erochest/straw-boss 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 rmp-serde v0.13.7
[INFO] [stderr]   Downloaded build_const v0.2.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.6
[INFO] [stderr]   Downloaded crc v1.7.0
[INFO] [stderr]   Downloaded nix v0.10.0
[INFO] [stderr]   Downloaded tempfile v3.0.4
[INFO] [stderr]   Downloaded globwalk v0.3.1
[INFO] [stderr]   Downloaded float-cmp v0.4.0
[INFO] [stderr]   Downloaded reqwest v0.8.8
[INFO] [stderr]   Downloaded shared_child v0.3.2
[INFO] [stderr]   Downloaded rmp v0.8.7
[INFO] [stderr]   Downloaded regex v0.2.10
[INFO] [stderr]   Downloaded tokio-io v0.1.5
[INFO] [stderr]   Downloaded regex-syntax v0.5.3
[INFO] [stderr]   Downloaded serde_json v1.0.10
[INFO] [stderr]   Downloaded normalize-line-endings v0.2.2
[INFO] [stderr]   Downloaded num-bigint v0.1.43
[INFO] [stderr]   Downloaded os_pipe v0.6.1
[INFO] [stderr]   Downloaded mio v0.6.13
[INFO] [stderr]   Downloaded num-iter v0.1.35
[INFO] [stderr]   Downloaded spectral v0.6.0
[INFO] [stderr]   Downloaded num-integer v0.1.36
[INFO] [stderr]   Downloaded serde_yaml v0.7.3
[INFO] [stderr]   Downloaded shellwords v0.1.0
[INFO] [stderr]   Downloaded predicates-tree v0.9.0
[INFO] [stderr]   Downloaded assert_fs v0.9.0
[INFO] [stderr]   Downloaded assert_cmd v0.6.0
[INFO] [stderr]   Downloaded predicates-core v0.9.0
[INFO] [stderr]   Downloaded sysinfo v0.5.1
[INFO] [stderr]   Downloaded globset v0.4.2
[INFO] [stderr]   Downloaded escargot v0.2.0
[INFO] [stderr]   Downloaded daemonize v0.3.0
[INFO] [stderr]   Downloaded ignore v0.4.3
[INFO] [stderr]   Downloaded predicates v0.5.2
[INFO] [stderr]   Downloaded predicates v0.9.0
[INFO] [stderr]   Downloaded duct v0.11.0
[INFO] [stderr]   Downloaded encoding_rs v0.8.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] cc3d359f4b9559fc686c2439ef12f32696beadc4333ed1883d3037ce269e9cfb
[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" "cc3d359f4b9559fc686c2439ef12f32696beadc4333ed1883d3037ce269e9cfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc3d359f4b9559fc686c2439ef12f32696beadc4333ed1883d3037ce269e9cfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc3d359f4b9559fc686c2439ef12f32696beadc4333ed1883d3037ce269e9cfb", kill_on_drop: false }`
[INFO] [stdout] cc3d359f4b9559fc686c2439ef12f32696beadc4333ed1883d3037ce269e9cfb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 427d18323cc993f58d4d3d26780a6d289472ecc263cae64bc498213699ae49e1
[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" "427d18323cc993f58d4d3d26780a6d289472ecc263cae64bc498213699ae49e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling sysinfo v0.5.1
[INFO] [stderr]     Checking daemonize v0.3.0
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]     Checking regex-syntax v0.5.3
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking rmp v0.8.7
[INFO] [stderr]     Checking nix v0.10.0
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking shared_child v0.3.2
[INFO] [stderr]     Checking backtrace v0.3.5
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking regex v0.2.10
[INFO] [stderr]     Checking os_pipe v0.6.1
[INFO] [stderr]     Checking duct v0.11.0
[INFO] [stderr]     Checking shellwords v0.1.0
[INFO] [stderr]     Checking rmp-serde v0.13.7
[INFO] [stderr]     Checking serde_yaml v0.7.3
[INFO] [stderr]  Documenting straw-boss v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_from)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(plugin)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(option_replace)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `straw-boss`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name straw_boss src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-b6ed5483a9bd5b6c.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-ae7b7317b15bcb3b.rmeta --extern daemonize=/opt/rustwide/target/debug/deps/libdaemonize-24fb69ceb81ab9af.rmeta --extern duct=/opt/rustwide/target/debug/deps/libduct-e6ecc12b8954aee2.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-181fa0c3a68f17d0.rmeta --extern failure_derive=/opt/rustwide/target/debug/deps/libfailure_derive-04a58c45a1084007.so --extern rmp_serde=/opt/rustwide/target/debug/deps/librmp_serde-4525a6e2d9e1537c.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-99933797680c4726.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-5d6448ff4e034887.so --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-add2c5b1523acded.rmeta --extern shellwords=/opt/rustwide/target/debug/deps/libshellwords-1a4dab4cdaf49a80.rmeta --extern sysinfo=/opt/rustwide/target/debug/deps/libsysinfo-b634a9614294a526.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "427d18323cc993f58d4d3d26780a6d289472ecc263cae64bc498213699ae49e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "427d18323cc993f58d4d3d26780a6d289472ecc263cae64bc498213699ae49e1", kill_on_drop: false }`
[INFO] [stdout] 427d18323cc993f58d4d3d26780a6d289472ecc263cae64bc498213699ae49e1