[INFO] cloning repository https://github.com/theduke/wasm-debug-instantiate
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/theduke/wasm-debug-instantiate" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheduke%2Fwasm-debug-instantiate", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheduke%2Fwasm-debug-instantiate'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ddbd39084c5eb36b6bc9f88ddb56532888c3d7b
[INFO] documenting theduke/wasm-debug-instantiate 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%2Ftheduke%2Fwasm-debug-instantiate" "/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/theduke/wasm-debug-instantiate 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/theduke/wasm-debug-instantiate
[INFO] finished tweaking git repo https://github.com/theduke/wasm-debug-instantiate
[INFO] tweaked toml for git repo https://github.com/theduke/wasm-debug-instantiate written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/theduke/wasm-debug-instantiate 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]  Downloading crates ...
[INFO] [stderr]   Downloaded weedle v0.8.0
[INFO] [stderr]   Downloaded syn v0.15.25
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.31
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.31
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.31
[INFO] [stderr]   Downloaded js-sys v0.3.8
[INFO] [stderr]   Downloaded web-sys v0.3.8
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.31
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.31
[INFO] [stderr]   Downloaded wasm-bindgen-webidl v0.2.25
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.3.8
[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] 0d220afa7b20d054f7cdc92598c681c0a249180382d6acf1a29b66cb8ff6b0b2
[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" "0d220afa7b20d054f7cdc92598c681c0a249180382d6acf1a29b66cb8ff6b0b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d220afa7b20d054f7cdc92598c681c0a249180382d6acf1a29b66cb8ff6b0b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d220afa7b20d054f7cdc92598c681c0a249180382d6acf1a29b66cb8ff6b0b2", kill_on_drop: false }`
[INFO] [stdout] 0d220afa7b20d054f7cdc92598c681c0a249180382d6acf1a29b66cb8ff6b0b2
[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] 76e477fb08bba07fc61db96531569dd0bbc1cbd2baaa67ae25e380c5639f0fcf
[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" "76e477fb08bba07fc61db96531569dd0bbc1cbd2baaa67ae25e380c5639f0fcf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.47
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.31
[INFO] [stderr]    Compiling rustc-demangle v0.1.13
[INFO] [stderr]    Compiling wasm-bindgen v0.2.31
[INFO] [stderr]    Compiling sourcefile v0.1.4
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]    Compiling syn v0.15.25
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling nom v4.1.1
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling weedle v0.8.0
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling env_logger v0.6.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.31
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.31
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.31
[INFO] [stderr]    Compiling wasm-bindgen-webidl v0.2.25
[INFO] [stderr]     Checking js-sys v0.3.8
[INFO] [stderr]    Compiling web-sys v0.3.8
[INFO] [stderr]     Checking wasm-bindgen-futures v0.3.8
[INFO] [stderr]  Documenting wasm_crash v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(custom_attribute)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in favor of `#![register_tool]` and `#![register_attr]`
[INFO] [stdout] 
[INFO] [stdout] 
[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(custom_attribute)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `wasm_crash`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type cdylib --crate-name wasm_crash 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 js_sys=/opt/rustwide/target/debug/deps/libjs_sys-4d99ae7307da6640.rmeta --extern wasm_bindgen=/opt/rustwide/target/debug/deps/libwasm_bindgen-98cf0ef2a6915028.rmeta --extern wasm_bindgen_futures=/opt/rustwide/target/debug/deps/libwasm_bindgen_futures-649b320e772883f1.rmeta --extern web_sys=/opt/rustwide/target/debug/deps/libweb_sys-5eff3b3700964f64.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "76e477fb08bba07fc61db96531569dd0bbc1cbd2baaa67ae25e380c5639f0fcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76e477fb08bba07fc61db96531569dd0bbc1cbd2baaa67ae25e380c5639f0fcf", kill_on_drop: false }`
[INFO] [stdout] 76e477fb08bba07fc61db96531569dd0bbc1cbd2baaa67ae25e380c5639f0fcf