[INFO] fetching crate sdb 0.0.10...
[INFO] documenting sdb-0.0.10 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate sdb 0.0.10 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate sdb 0.0.10 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sdb 0.0.10
[INFO] finished tweaking crates.io crate sdb 0.0.10
[INFO] tweaked toml for crates.io crate sdb 0.0.10 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition2021` has been stabilized in the 1.56 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded desse-derive v0.2.1
[INFO] [stderr]   Downloaded sanakirja v1.2.16
[INFO] [stderr]   Downloaded sanakirja-core v1.2.16
[INFO] [stderr]   Downloaded desse v0.2.1
[INFO] [stderr]   Downloaded sdb_macro v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b5d3d8d8a396928f069c1d694545449e1e24186c25132a9e0c512b6462d3cbb
[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" "8b5d3d8d8a396928f069c1d694545449e1e24186c25132a9e0c512b6462d3cbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b5d3d8d8a396928f069c1d694545449e1e24186c25132a9e0c512b6462d3cbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b5d3d8d8a396928f069c1d694545449e1e24186c25132a9e0c512b6462d3cbb", kill_on_drop: false }`
[INFO] [stdout] 8b5d3d8d8a396928f069c1d694545449e1e24186c25132a9e0c512b6462d3cbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa8ccb368b383744f92cbecca9c6d298be944cc950efb12c2a059e5360c8e10c
[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" "fa8ccb368b383744f92cbecca9c6d298be944cc950efb12c2a059e5360c8e10c", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition2021` has been stabilized in the 1.56 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking sanakirja-core v1.2.16
[INFO] [stderr]    Compiling desse-derive v0.2.1
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking desse v0.2.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling sdb_macro v0.0.1
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking sanakirja v1.2.16
[INFO] [stderr]  Documenting sdb v0.0.10 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(decl_macro)]
[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 `sdb`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name sdb src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="desse"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=e7aec1e74d2bd918 -L dependency=/opt/rustwide/target/debug/deps --extern desse=/opt/rustwide/target/debug/deps/libdesse-38c33ce8086f6562.rmeta --extern sanakirja=/opt/rustwide/target/debug/deps/libsanakirja-b34c13ba19a6b93a.rmeta --extern sdb_macro=/opt/rustwide/target/debug/deps/libsdb_macro-3400e239d66c8bc3.so --cap-lints=warn --crate-version 0.0.10` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "fa8ccb368b383744f92cbecca9c6d298be944cc950efb12c2a059e5360c8e10c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa8ccb368b383744f92cbecca9c6d298be944cc950efb12c2a059e5360c8e10c", kill_on_drop: false }`
[INFO] [stdout] fa8ccb368b383744f92cbecca9c6d298be944cc950efb12c2a059e5360c8e10c