[INFO] fetching crate eyros 4.6.2...
[INFO] documenting eyros-4.6.2 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate eyros 4.6.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate eyros 4.6.2 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate eyros 4.6.2
[INFO] finished tweaking crates.io crate eyros 4.6.2
[INFO] tweaked toml for crates.io crate eyros 4.6.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate eyros 4.6.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ahash v0.2.19
[INFO] [stderr]   Downloaded const-random v0.1.13
[INFO] [stderr]   Downloaded random v0.12.2
[INFO] [stderr]   Downloaded desert v2.0.1
[INFO] [stderr]   Downloaded hashbrown v0.6.3
[INFO] [stderr]   Downloaded const-random-macro v0.1.13
[INFO] [stderr]   Downloaded lru v0.4.3
[INFO] [stderr]   Downloaded mkdirp v1.0.0
[INFO] [stderr]   Downloaded random-access-disk v2.0.0
[INFO] [stderr]   Downloaded random-access-storage v4.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7ea7006e748b85273ae7214744f553c44ca412b1ebe982ad7256bb467266071
[INFO] running `Command { std: "docker" "start" "-a" "a7ea7006e748b85273ae7214744f553c44ca412b1ebe982ad7256bb467266071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7ea7006e748b85273ae7214744f553c44ca412b1ebe982ad7256bb467266071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7ea7006e748b85273ae7214744f553c44ca412b1ebe982ad7256bb467266071", kill_on_drop: false }`
[INFO] [stdout] a7ea7006e748b85273ae7214744f553c44ca412b1ebe982ad7256bb467266071
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb6337e961624ce665d5b3e6fe09f27b4bc25f705e2254dacb65b51639e91287
[INFO] running `Command { std: "docker" "start" "-a" "bb6337e961624ce665d5b3e6fe09f27b4bc25f705e2254dacb65b51639e91287", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.8
[INFO] [stderr]    Compiling signal-hook v0.3.13
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking async-task v4.2.0
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling const-random-macro v0.1.13
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]     Checking async-lock v2.5.0
[INFO] [stderr]     Checking mkdirp v1.0.0
[INFO] [stderr]     Checking desert v2.0.1
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking blocking v1.1.0
[INFO] [stderr]     Checking const-random v0.1.13
[INFO] [stderr]     Checking ahash v0.2.19
[INFO] [stderr]     Checking lru v0.4.3
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]     Checking random-access-storage v4.0.0
[INFO] [stderr]     Checking polling v2.2.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking async-io v1.6.0
[INFO] [stderr]     Checking async-global-executor v2.0.3
[INFO] [stderr]     Checking async-process v1.3.0
[INFO] [stderr]     Checking async-std v1.10.0
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking random-access-disk v2.0.0
[INFO] [stderr]  Documenting eyros v4.6.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0407]: method `backtrace` is not a member of trait `std::error::Error`
[INFO] [stdout]   --> src/error.rs:31:3
[INFO] [stdout]    |
[INFO] [stdout] 31 | /   fn backtrace(&'_ self) -> Option<&'_ Backtrace> {
[INFO] [stdout] 32 | |     Some(&self.backtrace)
[INFO] [stdout] 33 | |   }
[INFO] [stdout]    | |___^ not a member of trait `std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(async_closure, iter_partition_in_place, drain_filter, backtrace)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0407, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0407`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `eyros`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type rlib --crate-type cdylib --crate-name eyros src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="2d"' --cfg 'feature="3d"' --cfg 'feature="4d"' --cfg 'feature="default"' --cfg 'feature="random-access-disk"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=1d52256f67fbb9ba -L dependency=/opt/rustwide/target/debug/deps --extern async_std=/opt/rustwide/target/debug/deps/libasync_std-4e00c4ad389965d5.rmeta --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-faaa1ef6377b01dd.so --extern desert=/opt/rustwide/target/debug/deps/libdesert-751e59239139f064.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-eec7934b9e671e55.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-934a534d0fac24a3.rmeta --extern lru=/opt/rustwide/target/debug/deps/liblru-65686b9aeb09a56a.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-889ed9c7d0722b6c.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-d07388896ef2177b.rmeta --extern random_access_disk=/opt/rustwide/target/debug/deps/librandom_access_disk-68a1c021af829ae3.rmeta --extern random_access_storage=/opt/rustwide/target/debug/deps/librandom_access_storage-205860750aa4a676.rmeta --cap-lints=warn --crate-version 4.6.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "bb6337e961624ce665d5b3e6fe09f27b4bc25f705e2254dacb65b51639e91287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb6337e961624ce665d5b3e6fe09f27b4bc25f705e2254dacb65b51639e91287", kill_on_drop: false }`
[INFO] [stdout] bb6337e961624ce665d5b3e6fe09f27b4bc25f705e2254dacb65b51639e91287
