[INFO] fetching crate otkeep 0.1.0...
[INFO] documenting otkeep-0.1.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate otkeep 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate otkeep 0.1.0 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 otkeep 0.1.0
[INFO] finished tweaking crates.io crate otkeep 0.1.0
[INFO] tweaked toml for crates.io crate otkeep 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate otkeep 0.1.0 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 temp-dir v0.1.11
[INFO] [stderr]   Downloaded indexmap v1.8.2
[INFO] [stderr]   Downloaded clap_derive v3.1.18
[INFO] [stderr]   Downloaded anyhow v1.0.57
[INFO] [stderr]   Downloaded proc-macro2 v1.0.39
[INFO] [stderr]   Downloaded syn v1.0.96
[INFO] [stderr]   Downloaded clap v3.1.18
[INFO] [stderr]   Downloaded rusqlite v0.27.0
[INFO] [stderr]   Downloaded paths-as-strings v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3f563e83451bf74ee69d7743d5c07d3af21f3877bb059861d5e7d93f74e4d721
[INFO] running `Command { std: "docker" "start" "-a" "3f563e83451bf74ee69d7743d5c07d3af21f3877bb059861d5e7d93f74e4d721", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f563e83451bf74ee69d7743d5c07d3af21f3877bb059861d5e7d93f74e4d721", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f563e83451bf74ee69d7743d5c07d3af21f3877bb059861d5e7d93f74e4d721", kill_on_drop: false }`
[INFO] [stdout] 3f563e83451bf74ee69d7743d5c07d3af21f3877bb059861d5e7d93f74e4d721
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d18a6bad1667971441de030e74cca7a38fa03d7915b544738bec1d15e1d26643
[INFO] running `Command { std: "docker" "start" "-a" "d18a6bad1667971441de030e74cca7a38fa03d7915b544738bec1d15e1d26643", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]    Compiling libsqlite3-sys v0.24.2
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]     Checking directories v4.0.1
[INFO] [stderr]     Checking temp-dir v0.1.11
[INFO] [stderr]     Checking ahash v0.7.6
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking paths-as-strings v0.1.1
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking hashlink v0.7.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.1.18
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[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]   | ^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `let_else` has been stable since `1.65.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[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: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/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 '-Arustdoc::private-intra-doc-links' -C metadata=8074f31234178c77 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-4ca9180d04f0bdd0.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-04c76184fb64e863.rmeta --extern directories=/opt/rustwide/target/debug/deps/libdirectories-b849fd99a94db698.rmeta --extern otkeep=/opt/rustwide/target/debug/deps/libotkeep-fcac5b8737c02d58.rmeta --extern paths_as_strings=/opt/rustwide/target/debug/deps/libpaths_as_strings-1d0c4c758d19145c.rmeta --extern rusqlite=/opt/rustwide/target/debug/deps/librusqlite-18e24da26bf245c5.rmeta --extern temp_dir=/opt/rustwide/target/debug/deps/libtemp_dir-5f2cae8c144670d7.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-162ba0a17ae7e731.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" "d18a6bad1667971441de030e74cca7a38fa03d7915b544738bec1d15e1d26643", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d18a6bad1667971441de030e74cca7a38fa03d7915b544738bec1d15e1d26643", kill_on_drop: false }`
[INFO] [stdout] d18a6bad1667971441de030e74cca7a38fa03d7915b544738bec1d15e1d26643
