[INFO] cloning repository https://github.com/andreaseg/lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andreaseg/lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandreaseg%2Flang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandreaseg%2Flang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 82b786081c19bcd486d990ae59484860518a4b8d
[INFO] documenting andreaseg/lang 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%2Fandreaseg%2Flang" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andreaseg/lang 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/andreaseg/lang
[INFO] finished tweaking git repo https://github.com/andreaseg/lang
[INFO] tweaked toml for git repo https://github.com/andreaseg/lang written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/andreaseg/lang 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 52266d91e6a115a58f01f7a3e44325cb651fb25482d4f33407e0be59b5f88228
[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" "52266d91e6a115a58f01f7a3e44325cb651fb25482d4f33407e0be59b5f88228", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52266d91e6a115a58f01f7a3e44325cb651fb25482d4f33407e0be59b5f88228", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52266d91e6a115a58f01f7a3e44325cb651fb25482d4f33407e0be59b5f88228", kill_on_drop: false }`
[INFO] [stdout] 52266d91e6a115a58f01f7a3e44325cb651fb25482d4f33407e0be59b5f88228
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ba2a417b9cae0c325c0a3325abac6bf266b5e5c51dcce30e0860933e95327d73
[INFO] running `Command { std: "docker" "start" "-a" "ba2a417b9cae0c325c0a3325abac6bf266b5e5c51dcce30e0860933e95327d73", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling num-bigint v0.2.0
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling num-complex v0.2.0
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]     Checking utf8-ranges v1.0.1
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.15.8
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]  Documenting lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `self::terminal`
[INFO] [stdout]    --> src/visualizer/ast_tree.rs:168:19
[INFO] [stdout]     |
[INFO] [stdout] 168 |         use self::terminal::Constness as C;
[INFO] [stdout]     |                   ^^^^^^^^ could not find `terminal` in `self`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `self::ast::Scope`
[INFO] [stdout]    --> src/compiler/parser.rs:203:25
[INFO] [stdout]     |
[INFO] [stdout] 203 |                       use $error_type as path;
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^ no `Scope` in `compiler::parser::ast`
[INFO] [stdout] ...
[INFO] [stdout] 372 | /             expect_tokens!(tokens, self::ast::Scope, "Expected ;",
[INFO] [stdout] 373 | |                     (Token::Semicolon => {}),);
[INFO] [stdout]     | |_______________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `self::ast::Scope`
[INFO] [stdout]    --> src/compiler/parser.rs:211:21
[INFO] [stdout]     |
[INFO] [stdout] 211 |                   use $error_type as path;
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^ no `Scope` in `compiler::parser::ast`
[INFO] [stdout] ...
[INFO] [stdout] 372 | /             expect_tokens!(tokens, self::ast::Scope, "Expected ;",
[INFO] [stdout] 373 | |                     (Token::Semicolon => {}),);
[INFO] [stdout]     | |_______________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `terminal`
[INFO] [stdout]    --> src/visualizer/ast_tree.rs:166:17
[INFO] [stdout]     |
[INFO] [stdout] 166 | impl ToHtml for terminal::Constness {
[INFO] [stdout]     |                 ^^^^^^^^ use of undeclared type or module `terminal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `terminal`
[INFO] [stdout]    --> src/visualizer/ast_tree.rs:234:17
[INFO] [stdout]     |
[INFO] [stdout] 234 | impl ToHtml for terminal::Literal {
[INFO] [stdout]     |                 ^^^^^^^^ use of undeclared type or module `terminal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Scope` in this scope
[INFO] [stdout]    --> src/visualizer/ast_tree.rs:177:17
[INFO] [stdout]     |
[INFO] [stdout] 177 | impl ToHtml for Scope {
[INFO] [stdout]     |                 ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[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(tool_lints)]
[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] Some errors have detailed explanations: E0412, E0432, E0433, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `lang`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name lang 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 num=/opt/rustwide/target/debug/deps/libnum-9435ccdf41b2d4f7.rmeta --extern num_derive=/opt/rustwide/target/debug/deps/libnum_derive-6cb3e896dddc03c9.so --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-cc71a04ce11d3e1f.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-40decc8e95865318.rmeta --extern tempdir=/opt/rustwide/target/debug/deps/libtempdir-ad0df0e0cdf17c27.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "ba2a417b9cae0c325c0a3325abac6bf266b5e5c51dcce30e0860933e95327d73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba2a417b9cae0c325c0a3325abac6bf266b5e5c51dcce30e0860933e95327d73", kill_on_drop: false }`
[INFO] [stdout] ba2a417b9cae0c325c0a3325abac6bf266b5e5c51dcce30e0860933e95327d73