[INFO] cloning repository https://github.com/Techno-coder/lucent
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Techno-coder/lucent" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTechno-coder%2Flucent", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTechno-coder%2Flucent'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f5c95b296c80b0fd8e829b9ff3cf6a74717e08ca
[INFO] documenting Techno-coder/lucent against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTechno-coder%2Flucent" "/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/Techno-coder/lucent on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Techno-coder/lucent
[INFO] finished tweaking git repo https://github.com/Techno-coder/lucent
[INFO] tweaked toml for git repo https://github.com/Techno-coder/lucent written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Techno-coder/lucent already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24c30df9487e442b7e581633cc20d935e7b23d6a74421316c01c69773485c69c
[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" "24c30df9487e442b7e581633cc20d935e7b23d6a74421316c01c69773485c69c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24c30df9487e442b7e581633cc20d935e7b23d6a74421316c01c69773485c69c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24c30df9487e442b7e581633cc20d935e7b23d6a74421316c01c69773485c69c", kill_on_drop: false }`
[INFO] [stdout] 24c30df9487e442b7e581633cc20d935e7b23d6a74421316c01c69773485c69c
[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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5e607096cb0d4622dca912cceda7222ce9fa46837b1c4efd346b81a3ce87ddb
[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" "c5e607096cb0d4622dca912cceda7222ce9fa46837b1c4efd346b81a3ce87ddb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling tree-sitter v0.16.0
[INFO] [stderr]    Compiling lucent v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking codespan-reporting v0.9.4
[INFO] [stderr]    Compiling iced-x86 v1.2.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking codespan v0.9.4
[INFO] [stderr] warning: In file included from tree-sitter-lucent/src/parser.c:1:
[INFO] [stderr] warning: tree-sitter-lucent/src/parser.c: In function 'ts_lex_keywords':
[INFO] [stderr] warning: tree-sitter-lucent/src/tree_sitter/parser.h:131:8: warning: variable 'eof' set but not used [-Wunused-but-set-variable]
[INFO] [stderr] warning:   131 |   bool eof = false;             \
[INFO] [stderr] warning:       |        ^~~
[INFO] [stderr] warning: tree-sitter-lucent/src/parser.c:2471:3: note: in expansion of macro 'START_LEXER'
[INFO] [stderr] warning:  2471 |   START_LEXER();
[INFO] [stderr] warning:       |   ^~~~~~~~~~~
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking ahash v0.3.5
[INFO] [stderr]     Checking dashmap v3.11.2
[INFO] [stderr]    Compiling scroll_derive v0.10.2
[INFO] [stderr]     Checking scroll v0.10.1
[INFO] [stderr]     Checking goblin v0.2.3
[INFO] [stderr]  Documenting lucent 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(option_unwrap_none)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(entry_insert)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(concat_idents)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(bindings_after_at)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(array_value_iter)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(bool_to_option)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: In file included from tree-sitter-lucent/src/parser.c:1:
[INFO] [stderr] warning: tree-sitter-lucent/src/parser.c: In function 'ts_lex_keywords':
[INFO] [stderr] warning: tree-sitter-lucent/src/tree_sitter/parser.h:131:8: warning: variable 'eof' set but not used [-Wunused-but-set-variable]
[INFO] [stderr] warning:   131 |   bool eof = false;             \
[INFO] [stderr] warning:       |        ^~~
[INFO] [stderr] warning: tree-sitter-lucent/src/parser.c:2471:3: note: in expansion of macro 'START_LEXER'
[INFO] [stderr] warning:  2471 |   START_LEXER();
[INFO] [stderr] warning:       |   ^~~~~~~~~~~
[INFO] [stderr] 
[INFO] [stderr] error: Could not document `lucent`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name lucent 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 codespan=/opt/rustwide/target/debug/deps/libcodespan-22a8354b26c67a34.rmeta --extern codespan_reporting=/opt/rustwide/target/debug/deps/libcodespan_reporting-2a6af86bb90f6d43.rmeta --extern dashmap=/opt/rustwide/target/debug/deps/libdashmap-3b362ba928d82951.rmeta --extern goblin=/opt/rustwide/target/debug/deps/libgoblin-bbd19c31520d6ee9.rmeta --extern iced_x86=/opt/rustwide/target/debug/deps/libiced_x86-64d08b3124eb3e51.rmeta --extern indexmap=/opt/rustwide/target/debug/deps/libindexmap-4ef124e5282a40c5.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-6eeb25e40ba50875.rmeta --extern scroll=/opt/rustwide/target/debug/deps/libscroll-13b4276fb616a4a0.rmeta --extern tree_sitter=/opt/rustwide/target/debug/deps/libtree_sitter-bb93c5dddd61a0dd.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "c5e607096cb0d4622dca912cceda7222ce9fa46837b1c4efd346b81a3ce87ddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5e607096cb0d4622dca912cceda7222ce9fa46837b1c4efd346b81a3ce87ddb", kill_on_drop: false }`
[INFO] [stdout] c5e607096cb0d4622dca912cceda7222ce9fa46837b1c4efd346b81a3ce87ddb