[INFO] cloning repository https://github.com/syntacticsugarglider/4904website
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/syntacticsugarglider/4904website" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyntacticsugarglider%2F4904website", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyntacticsugarglider%2F4904website'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2459718cd174e277b83b5dead6d7d33c09c8b4d2
[INFO] documenting syntacticsugarglider/4904website against 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyntacticsugarglider%2F4904website" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/syntacticsugarglider/4904website on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/syntacticsugarglider/4904website
[INFO] finished tweaking git repo https://github.com/syntacticsugarglider/4904website
[INFO] tweaked toml for git repo https://github.com/syntacticsugarglider/4904website written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/syntacticsugarglider/4904website already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c47c369300aa4ac3eed7a848bab2bdc4a81dadc9bd935a9b178494881add8558
[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" "c47c369300aa4ac3eed7a848bab2bdc4a81dadc9bd935a9b178494881add8558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c47c369300aa4ac3eed7a848bab2bdc4a81dadc9bd935a9b178494881add8558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c47c369300aa4ac3eed7a848bab2bdc4a81dadc9bd935a9b178494881add8558", kill_on_drop: false }`
[INFO] [stdout] c47c369300aa4ac3eed7a848bab2bdc4a81dadc9bd935a9b178494881add8558
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91c9fb152c3edb02b932502f5c59346cf9e0eab609f480979f772e7f123e4530
[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" "91c9fb152c3edb02b932502f5c59346cf9e0eab609f480979f772e7f123e4530", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]    Compiling encoding_rs v0.8.15
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]     Checking macro-utils v0.1.2
[INFO] [stderr]    Compiling rand_jitter v0.1.2
[INFO] [stderr]    Compiling serde v1.0.87
[INFO] [stderr]    Compiling rand_os v0.1.2
[INFO] [stderr]     Checking tokio-timer v0.2.10
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking serde_json v1.0.38
[INFO] [stderr]     Checking openssl-sys v0.9.40
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]    Compiling serde_derive v1.0.85
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking serde_urlencoded v0.5.4
[INFO] [stderr]     Checking uuid v0.7.2
[INFO] [stderr]     Checking minifier v0.0.21
[INFO] [stderr]     Checking tokio-reactor v0.1.8
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking tokio-threadpool v0.1.11
[INFO] [stderr]     Checking ical v0.5.0
[INFO] [stderr]     Checking openssl v0.10.16
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking html-minifier v1.1.4
[INFO] [stderr]    Compiling nom v4.2.0
[INFO] [stderr]     Checking tokio v0.1.15
[INFO] [stderr]     Checking hyper v0.12.23
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]    Compiling mime_guess v1.8.6
[INFO] [stderr]     Checking native-tls v0.2.2
[INFO] [stderr]     Checking hyper-tls v0.3.1
[INFO] [stderr]     Checking reqwest v0.9.9
[INFO] [stderr]     Checking askama_shared v0.7.2
[INFO] [stderr]    Compiling askama_derive v0.7.2
[INFO] [stderr]     Checking askama v0.7.2
[INFO] [stderr]  Documenting botgen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(inner_deref)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 `botgen`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name botgen src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern askama=/opt/rustwide/target/debug/deps/libaskama-aed081aeb0314f6c.rmeta --extern base64=/opt/rustwide/target/debug/deps/libbase64-eb6114b38ecb5957.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-b5c2cdf2f43f3b99.rmeta --extern html_minifier=/opt/rustwide/target/debug/deps/libhtml_minifier-35e40fac0c249a43.rmeta --extern ical=/opt/rustwide/target/debug/deps/libical-1aa1a241e2df8376.rmeta --extern mime_guess=/opt/rustwide/target/debug/deps/libmime_guess-b3e4a7290a670545.rmeta --extern pulldown_cmark=/opt/rustwide/target/debug/deps/libpulldown_cmark-a62ea60f9fd878bc.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-47d5dc6c7f034755.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "91c9fb152c3edb02b932502f5c59346cf9e0eab609f480979f772e7f123e4530", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91c9fb152c3edb02b932502f5c59346cf9e0eab609f480979f772e7f123e4530", kill_on_drop: false }`
[INFO] [stdout] 91c9fb152c3edb02b932502f5c59346cf9e0eab609f480979f772e7f123e4530
