[INFO] fetching crate treescript-interpreter 0.1.1...
[INFO] documenting treescript-interpreter-0.1.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate treescript-interpreter 0.1.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate treescript-interpreter 0.1.1 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 treescript-interpreter 0.1.1
[INFO] finished tweaking crates.io crate treescript-interpreter 0.1.1
[INFO] tweaked toml for crates.io crate treescript-interpreter 0.1.1 written to /workspace/builds/worker-10/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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] c3e2d178bf49057eac0ed0b3cf6a944443870ce2729192b8c71a44bfd1968885
[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" "c3e2d178bf49057eac0ed0b3cf6a944443870ce2729192b8c71a44bfd1968885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3e2d178bf49057eac0ed0b3cf6a944443870ce2729192b8c71a44bfd1968885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3e2d178bf49057eac0ed0b3cf6a944443870ce2729192b8c71a44bfd1968885", kill_on_drop: false }`
[INFO] [stdout] c3e2d178bf49057eac0ed0b3cf6a944443870ce2729192b8c71a44bfd1968885
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 876472dd15290e265cb2e18e9a72cbed53d637e3c84a8032f68af7ffce289d48
[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" "876472dd15290e265cb2e18e9a72cbed53d637e3c84a8032f68af7ffce289d48", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode_reader v0.1.1
[INFO] [stderr]     Checking app_dirs v1.2.1
[INFO] [stderr]     Checking rmp v0.8.9
[INFO] [stderr]    Compiling enum-map-derive v0.4.3
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking rmp-serde v0.13.7
[INFO] [stderr]     Checking enum-map v0.5.0
[INFO] [stderr]     Checking treescript-interpreter v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting treescript-interpreter v0.1.1 (/opt/rustwide/workdir)
[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(refcell_map_split, generators, generator_trait)]
[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:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(refcell_map_split, generators, generator_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:214:64
[INFO] [stdout]     |
[INFO] [stdout] 214 |   pub fn read_ast<P: AsRef<Path>>(&self, input_path: P) -> Box<Read> {
[INFO] [stdout]     |                                                                ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:233:57
[INFO] [stdout]     |
[INFO] [stdout] 233 |   pub fn write_ast(&self, output_path: PathBuf) -> (Box<Write>, AtomicFileCommit) {
[INFO] [stdout]     |                                                         ^^^^^ help: use `dyn`: `dyn Write`
[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 `treescript-interpreter`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name treescript_interpreter 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 inflector=/opt/rustwide/target/debug/deps/libinflector-04da3b19146edf72.rmeta --extern app_dirs=/opt/rustwide/target/debug/deps/libapp_dirs-719d25a1a97b830c.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-d8de5d56e70a343c.rmeta --extern enum_map=/opt/rustwide/target/debug/deps/libenum_map-bbd667e5eac5426c.rmeta --extern rmp_serde=/opt/rustwide/target/debug/deps/librmp_serde-e90ef96c7297ade8.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-570daa8b5fc9252f.rmeta --extern serde_repr=/opt/rustwide/target/debug/deps/libserde_repr-6b5816119c0fce98.so --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-6d36f5148d26c12a.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-850e2636105c6b48.rmeta --extern unicode_reader=/opt/rustwide/target/debug/deps/libunicode_reader-ab92507ae1d07512.rmeta --cap-lints=warn --crate-version 0.1.1` (exit code: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: no method named `resume` found for type parameter `G` in the current scope
[INFO] [stdout]   --> src/util.rs:52:27
[INFO] [stdout]    |
[INFO] [stdout] 52 |     match unsafe { self.0.resume() } {
[INFO] [stdout]    |                           ^^^^^^ method not found in `G`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "876472dd15290e265cb2e18e9a72cbed53d637e3c84a8032f68af7ffce289d48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "876472dd15290e265cb2e18e9a72cbed53d637e3c84a8032f68af7ffce289d48", kill_on_drop: false }`
[INFO] [stdout] 876472dd15290e265cb2e18e9a72cbed53d637e3c84a8032f68af7ffce289d48