[INFO] crate gob 0.1.0 is already in cache
[INFO] documenting gob-0.1.0 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate gob 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate gob 0.1.0 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gob 0.1.0
[INFO] finished tweaking crates.io crate gob 0.1.0
[INFO] tweaked toml for crates.io crate gob 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3c4b80a11403242938bcd93aa2245a1957741cf07f4a62d35f0b7e5c39d83ea
[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" "c3c4b80a11403242938bcd93aa2245a1957741cf07f4a62d35f0b7e5c39d83ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3c4b80a11403242938bcd93aa2245a1957741cf07f4a62d35f0b7e5c39d83ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3c4b80a11403242938bcd93aa2245a1957741cf07f4a62d35f0b7e5c39d83ea", kill_on_drop: false }`
[INFO] [stdout] c3c4b80a11403242938bcd93aa2245a1957741cf07f4a62d35f0b7e5c39d83ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19ce435b3682115b59a02d05268717f7c5597c9d3570ef1f3822ccfd32a1e83a
[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" "19ce435b3682115b59a02d05268717f7c5597c9d3570ef1f3822ccfd32a1e83a", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking serde_schema v0.0.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling serde_derive_internals v0.23.1
[INFO] [stderr]    Compiling serde_schema_derive v0.0.1
[INFO] [stderr]  Documenting gob v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unnecessary braces around block return value
[INFO] [stdout]   --> src/internal/types/struct_type.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         { Type::build().seq_type(None, TypeId::FIELD_TYPE) };
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(unused_braces)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `gob`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name gob 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 byteorder=/opt/rustwide/target/debug/deps/libbyteorder-75816ef8ceecf9ec.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-5efe1e40500d871f.rmeta --extern iovec=/opt/rustwide/target/debug/deps/libiovec-cdd54cae2f8ee6d5.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-b2c940d7bd864b5c.rmeta --extern owning_ref=/opt/rustwide/target/debug/deps/libowning_ref-2160a00d2d7c3021.rmeta --extern safemem=/opt/rustwide/target/debug/deps/libsafemem-059c8ec78a3d6a5d.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-8ae523b783554553.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-5f6624d84a6186f0.so --extern serde_schema=/opt/rustwide/target/debug/deps/libserde_schema-f7a7fa9307d6e0bd.rmeta --extern serde_schema_derive=/opt/rustwide/target/debug/deps/libserde_schema_derive-99531ed3f65ddd15.so --cap-lints=forbid` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "19ce435b3682115b59a02d05268717f7c5597c9d3570ef1f3822ccfd32a1e83a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19ce435b3682115b59a02d05268717f7c5597c9d3570ef1f3822ccfd32a1e83a", kill_on_drop: false }`
[INFO] [stdout] 19ce435b3682115b59a02d05268717f7c5597c9d3570ef1f3822ccfd32a1e83a