[INFO] fetching crate tarpc-lib 0.7.0... [INFO] documenting tarpc-lib-0.7.0 against beta-2020-08-29 for beta-1.47-rustdoc-1 [INFO] extracting crate tarpc-lib 0.7.0 into /workspace/builds/worker-9/source [INFO] validating manifest of crates.io crate tarpc-lib 0.7.0 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 tarpc-lib 0.7.0 [INFO] finished tweaking crates.io crate tarpc-lib 0.7.0 [INFO] tweaked toml for crates.io crate tarpc-lib 0.7.0 written to /workspace/builds/worker-9/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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded futures-test-preview v0.3.0-alpha.19 [INFO] [stderr] Downloaded tarpc-trace v0.3.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 0da04d5f80f25755f1b36b347837d338a6e1a183498008c37112c23140887d98 [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" "0da04d5f80f25755f1b36b347837d338a6e1a183498008c37112c23140887d98", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0da04d5f80f25755f1b36b347837d338a6e1a183498008c37112c23140887d98", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0da04d5f80f25755f1b36b347837d338a6e1a183498008c37112c23140887d98", kill_on_drop: false }` [INFO] [stdout] 0da04d5f80f25755f1b36b347837d338a6e1a183498008c37112c23140887d98 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] d934e917b27f8cace54d94f9fd70761df4dfce1fe5ff7a6b60ec2d4d93e7e842 [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" "d934e917b27f8cace54d94f9fd70761df4dfce1fe5ff7a6b60ec2d4d93e7e842", kill_on_drop: false }` [INFO] [stderr] Checking futures-channel-preview v0.3.0-alpha.19 [INFO] [stderr] Checking tarpc-trace v0.3.0 [INFO] [stderr] Checking futures-util-preview v0.3.0-alpha.19 [INFO] [stderr] Checking tokio-sync v0.2.0-alpha.6 [INFO] [stderr] Checking futures-executor-preview v0.3.0-alpha.19 [INFO] [stderr] Checking tokio-executor v0.2.0-alpha.6 [INFO] [stderr] Checking futures-preview v0.3.0-alpha.19 [INFO] [stderr] Checking tokio-timer v0.3.0-alpha.6 [INFO] [stderr] Documenting tarpc-lib v0.7.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:7:1 [INFO] [stdout] | [INFO] [stdout] 7 | #![feature(weak_counts, non_exhaustive, trait_alias)] [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 `tarpc-lib`. [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name tarpc_lib src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern fnv=/opt/rustwide/target/debug/deps/libfnv-0ff73feb7e2c43f7.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-740c838d079c9976.rmeta --extern humantime=/opt/rustwide/target/debug/deps/libhumantime-e284016abeaa4a04.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-95a9d57e67df36ac.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-3d51a938ac21e975.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-11946bb198eefaee.rmeta --extern trace=/opt/rustwide/target/debug/deps/libtarpc_trace-2339aebc9f80ffef.rmeta --extern tokio_timer=/opt/rustwide/target/debug/deps/libtokio_timer-ae47b78b81c891f7.rmeta --cap-lints=warn --crate-version 0.7.0` (exit code: 1) [INFO] running `Command { std: "docker" "inspect" "d934e917b27f8cace54d94f9fd70761df4dfce1fe5ff7a6b60ec2d4d93e7e842", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d934e917b27f8cace54d94f9fd70761df4dfce1fe5ff7a6b60ec2d4d93e7e842", kill_on_drop: false }` [INFO] [stdout] d934e917b27f8cace54d94f9fd70761df4dfce1fe5ff7a6b60ec2d4d93e7e842