[INFO] cloning repository https://github.com/crumblingstatue/OtKeep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/crumblingstatue/OtKeep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrumblingstatue%2FOtKeep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrumblingstatue%2FOtKeep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dafadcee9727fda8486ecfa13fa2b70f942832bf
[INFO] documenting crumblingstatue/OtKeep against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrumblingstatue%2FOtKeep" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/crumblingstatue/OtKeep 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 git repo https://github.com/crumblingstatue/OtKeep
[INFO] finished tweaking git repo https://github.com/crumblingstatue/OtKeep
[INFO] tweaked toml for git repo https://github.com/crumblingstatue/OtKeep written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/crumblingstatue/OtKeep already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded temp-dir v0.1.11
[INFO] [stderr]   Downloaded libsqlite3-sys v0.24.2
[INFO] [stderr]   Downloaded paths-as-strings v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] d6b7da465b1df6e56c47fb5c07478ff6b67e97780ba81b178c4587de2ef9733d
[INFO] running `Command { std: "docker" "start" "-a" "d6b7da465b1df6e56c47fb5c07478ff6b67e97780ba81b178c4587de2ef9733d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6b7da465b1df6e56c47fb5c07478ff6b67e97780ba81b178c4587de2ef9733d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6b7da465b1df6e56c47fb5c07478ff6b67e97780ba81b178c4587de2ef9733d", kill_on_drop: false }`
[INFO] [stdout] d6b7da465b1df6e56c47fb5c07478ff6b67e97780ba81b178c4587de2ef9733d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 45573aa3e077be919fe550bc07e568d229f36b27f55d2c2d9dd9abcc5f0c7627
[INFO] running `Command { std: "docker" "start" "-a" "45573aa3e077be919fe550bc07e568d229f36b27f55d2c2d9dd9abcc5f0c7627", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking os_str_bytes v6.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking temp-dir v0.1.11
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking paths-as-strings v0.1.1
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling libsqlite3-sys v0.24.2
[INFO] [stderr]     Checking directories v4.0.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking hashlink v0.7.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling clap_derive v3.1.18
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking clap v3.1.18
[INFO] [stderr]     Checking rusqlite v0.27.0
[INFO] [stderr]  Documenting otkeep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking otkeep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/bin/okeep.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_else)]
[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 `otkeep`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name okeep src/bin/okeep.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=eedbc47f2bf047b5 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-a2ad8fa07e0781ab.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-1d9448557618bfb1.rmeta --extern directories=/opt/rustwide/target/debug/deps/libdirectories-e52cd2a0fe62be58.rmeta --extern otkeep=/opt/rustwide/target/debug/deps/libotkeep-f463737aec9a90a0.rmeta --extern paths_as_strings=/opt/rustwide/target/debug/deps/libpaths_as_strings-39e21b88d5f911ab.rmeta --extern rusqlite=/opt/rustwide/target/debug/deps/librusqlite-1a0b803f6d5421f9.rmeta --extern temp_dir=/opt/rustwide/target/debug/deps/libtemp_dir-bdd5d1273dc40ebd.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-df45c3ad67fe1eda.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "45573aa3e077be919fe550bc07e568d229f36b27f55d2c2d9dd9abcc5f0c7627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45573aa3e077be919fe550bc07e568d229f36b27f55d2c2d9dd9abcc5f0c7627", kill_on_drop: false }`
[INFO] [stdout] 45573aa3e077be919fe550bc07e568d229f36b27f55d2c2d9dd9abcc5f0c7627