[INFO] cloning repository https://github.com/urugang/create-lang-with-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/urugang/create-lang-with-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furugang%2Fcreate-lang-with-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furugang%2Fcreate-lang-with-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1443b2f41183f242324d59b1e2a8827acf6bbfdd
[INFO] documenting urugang/create-lang-with-rust 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%2Furugang%2Fcreate-lang-with-rust" "/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/urugang/create-lang-with-rust 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/urugang/create-lang-with-rust
[INFO] finished tweaking git repo https://github.com/urugang/create-lang-with-rust
[INFO] tweaked toml for git repo https://github.com/urugang/create-lang-with-rust written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/urugang/create-lang-with-rust 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-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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bdbd17b99082da5c4089a4e43969bb923c476136b557dcde7c745e81dd83ed6a
[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" "bdbd17b99082da5c4089a4e43969bb923c476136b557dcde7c745e81dd83ed6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdbd17b99082da5c4089a4e43969bb923c476136b557dcde7c745e81dd83ed6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdbd17b99082da5c4089a4e43969bb923c476136b557dcde7c745e81dd83ed6a", kill_on_drop: false }`
[INFO] [stdout] bdbd17b99082da5c4089a4e43969bb923c476136b557dcde7c745e81dd83ed6a
[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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5f77ac23cfb2872286d7c812a2f7d1b66c45aa17c182c7d85199069c427b6fd
[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" "d5f77ac23cfb2872286d7c812a2f7d1b66c45aa17c182c7d85199069c427b6fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling ucd-trie v0.1.1
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking pest v2.1.0
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling pest_meta v2.1.0
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]  Documenting meetup-2019-02 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(slice_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: half-open range patterns are unstable
[INFO] [stdout]   --> src/codegen.rs:70:51
[INFO] [stdout]    |
[INFO] [stdout] 70 |                 [SExp::Ident("+"), first, second, rest..] => {
[INFO] [stdout]    |                                                   ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #67264 <https://github.com/rust-lang/rust/issues/67264> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: half-open range patterns are unstable
[INFO] [stdout]   --> src/codegen.rs:73:51
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 [SExp::Ident("-"), first, second, rest..] => {
[INFO] [stdout]    |                                                   ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #67264 <https://github.com/rust-lang/rust/issues/67264> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: half-open range patterns are unstable
[INFO] [stdout]   --> src/codegen.rs:76:51
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 [SExp::Ident("<"), first, second, rest..] => {
[INFO] [stdout]    |                                                   ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #67264 <https://github.com/rust-lang/rust/issues/67264> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: half-open range patterns are unstable
[INFO] [stdout]    --> src/codegen.rs:115:26
[INFO] [stdout]     |
[INFO] [stdout] 115 |                 [callee, args..] => {
[INFO] [stdout]     |                          ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #67264 <https://github.com/rust-lang/rust/issues/67264> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stdout]   --> src/codegen.rs:70:51
[INFO] [stdout]    |
[INFO] [stdout] 70 |                 [SExp::Ident("+"), first, second, rest..] => {
[INFO] [stdout]    |                                                   ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #37854 <https://github.com/rust-lang/rust/issues/37854> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stdout]   --> src/codegen.rs:73:51
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 [SExp::Ident("-"), first, second, rest..] => {
[INFO] [stdout]    |                                                   ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #37854 <https://github.com/rust-lang/rust/issues/37854> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stdout]   --> src/codegen.rs:76:51
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 [SExp::Ident("<"), first, second, rest..] => {
[INFO] [stdout]    |                                                   ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #37854 <https://github.com/rust-lang/rust/issues/37854> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stdout]    --> src/codegen.rs:115:26
[INFO] [stdout]     |
[INFO] [stdout] 115 |                 [callee, args..] => {
[INFO] [stdout]     |                          ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #37854 <https://github.com/rust-lang/rust/issues/37854> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 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] [stderr] error: Could not document `meetup-2019-02`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name meetup_2019_02 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 lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-038cd955f516928e.rmeta --extern pest=/opt/rustwide/target/debug/deps/libpest-bf8cf156f9f11b0a.rmeta --extern pest_derive=/opt/rustwide/target/debug/deps/libpest_derive-623d685b778427e8.so --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "d5f77ac23cfb2872286d7c812a2f7d1b66c45aa17c182c7d85199069c427b6fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5f77ac23cfb2872286d7c812a2f7d1b66c45aa17c182c7d85199069c427b6fd", kill_on_drop: false }`
[INFO] [stdout] d5f77ac23cfb2872286d7c812a2f7d1b66c45aa17c182c7d85199069c427b6fd
