[INFO] fetching crate oatie 0.3.0...
[INFO] documenting oatie-0.3.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate oatie 0.3.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate oatie 0.3.0 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 crates.io crate oatie 0.3.0
[INFO] finished tweaking crates.io crate oatie 0.3.0
[INFO] tweaked toml for crates.io crate oatie 0.3.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 813633b4477476de5b2550fe0411045fce19a521fb902fe03f7607384bddb34d
[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" "813633b4477476de5b2550fe0411045fce19a521fb902fe03f7607384bddb34d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "813633b4477476de5b2550fe0411045fce19a521fb902fe03f7607384bddb34d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "813633b4477476de5b2550fe0411045fce19a521fb902fe03f7607384bddb34d", kill_on_drop: false }`
[INFO] [stdout] 813633b4477476de5b2550fe0411045fce19a521fb902fe03f7607384bddb34d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 1017e3251b92171ef7ec30b36aa61505d04ed10c40d8cb2cedeebcb71b90064f
[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" "1017e3251b92171ef7ec30b36aa61505d04ed10c40d8cb2cedeebcb71b90064f", kill_on_drop: false }`
[INFO] [stderr]     Checking yansi v0.3.4
[INFO] [stderr]     Checking term-painter v0.2.4
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]     Checking ron v0.2.2
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking oatie v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting oatie v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown lint: `match_same_arms`
[INFO] [stdout]   --> src/schema.rs:86:13
[INFO] [stdout]    |
[INFO] [stdout] 86 |     #[allow(match_same_arms)]
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `match_same_arms`
[INFO] [stdout]   --> src/schema.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |     #[allow(match_same_arms)]
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(nll)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(nll)]
[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 `oatie`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name oatie 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 either=/opt/rustwide/target/debug/deps/libeither-e5928af0be8c0bf6.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-56dd397d7044e9d2.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-39376325fae1b39f.rmeta --extern maplit=/opt/rustwide/target/debug/deps/libmaplit-d389981351953744.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-7782f3c201500f52.rmeta --extern ron=/opt/rustwide/target/debug/deps/libron-1a461b7d8c7a1766.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-5d92a4e2c81daebf.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-3a89c57880b62507.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-40c349d89611c2f7.rmeta --extern term_painter=/opt/rustwide/target/debug/deps/libterm_painter-bf77ee99243b3be4.rmeta --extern yansi=/opt/rustwide/target/debug/deps/libyansi-bf4a07851b74c86b.rmeta --cap-lints=warn --crate-version 0.3.0` (exit code: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1017e3251b92171ef7ec30b36aa61505d04ed10c40d8cb2cedeebcb71b90064f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1017e3251b92171ef7ec30b36aa61505d04ed10c40d8cb2cedeebcb71b90064f", kill_on_drop: false }`
[INFO] [stdout] 1017e3251b92171ef7ec30b36aa61505d04ed10c40d8cb2cedeebcb71b90064f