[INFO] cloning repository https://github.com/Brannigan123/klang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Brannigan123/klang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrannigan123%2Fklang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrannigan123%2Fklang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0933dd1f5ff6918a301b555051f1d5d8c40939e0
[INFO] documenting Brannigan123/klang against 1.75.0 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrannigan123%2Fklang" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Brannigan123/klang on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Brannigan123/klang
[INFO] finished tweaking git repo https://github.com/Brannigan123/klang
[INFO] tweaked toml for git repo https://github.com/Brannigan123/klang written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Brannigan123/klang 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded indent v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da47215f460e0d47917d3f0e82685e36ec89d80192ee0b3206e626a005b1716d
[INFO] running `Command { std: "docker" "start" "-a" "da47215f460e0d47917d3f0e82685e36ec89d80192ee0b3206e626a005b1716d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da47215f460e0d47917d3f0e82685e36ec89d80192ee0b3206e626a005b1716d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da47215f460e0d47917d3f0e82685e36ec89d80192ee0b3206e626a005b1716d", kill_on_drop: false }`
[INFO] [stdout] da47215f460e0d47917d3f0e82685e36ec89d80192ee0b3206e626a005b1716d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee9d27e1e6800507402fe42a9d219a2db3a73fe98cd0f87a14817d0f53a3b288
[INFO] running `Command { std: "docker" "start" "-a" "ee9d27e1e6800507402fe42a9d219a2db3a73fe98cd0f87a14817d0f53a3b288", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror v1.0.39
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]     Checking text_io v0.1.12
[INFO] [stderr]     Checking indent v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.39
[INFO] [stderr]    Compiling pest v2.5.6
[INFO] [stderr]    Compiling pest_meta v2.5.6
[INFO] [stderr]    Compiling pest_generator v2.5.6
[INFO] [stderr]    Compiling pest_derive v2.5.6
[INFO] [stderr]  Documenting klang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_chains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 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 `klang`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type bin --crate-name klang src/main.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=ee175c8246e6a222 -L dependency=/opt/rustwide/target/debug/deps --extern indent=/opt/rustwide/target/debug/deps/libindent-313b4b6df0c35501.rmeta --extern pest=/opt/rustwide/target/debug/deps/libpest-425f43ed9ba66d3d.rmeta --extern pest_derive=/opt/rustwide/target/debug/deps/libpest_derive-232c05b6cff1df38.so --extern text_io=/opt/rustwide/target/debug/deps/libtext_io-eb3db7bcb1924548.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ee9d27e1e6800507402fe42a9d219a2db3a73fe98cd0f87a14817d0f53a3b288", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee9d27e1e6800507402fe42a9d219a2db3a73fe98cd0f87a14817d0f53a3b288", kill_on_drop: false }`
[INFO] [stdout] ee9d27e1e6800507402fe42a9d219a2db3a73fe98cd0f87a14817d0f53a3b288
[INFO] documenting Brannigan123/klang against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrannigan123%2Fklang" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Brannigan123/klang on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Brannigan123/klang
[INFO] finished tweaking git repo https://github.com/Brannigan123/klang
[INFO] tweaked toml for git repo https://github.com/Brannigan123/klang written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Brannigan123/klang 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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 840a2380fca48a40bf5a4f22937288eb18fa2ce9a24dd931a8440626177902c1
[INFO] running `Command { std: "docker" "start" "-a" "840a2380fca48a40bf5a4f22937288eb18fa2ce9a24dd931a8440626177902c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "840a2380fca48a40bf5a4f22937288eb18fa2ce9a24dd931a8440626177902c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "840a2380fca48a40bf5a4f22937288eb18fa2ce9a24dd931a8440626177902c1", kill_on_drop: false }`
[INFO] [stdout] 840a2380fca48a40bf5a4f22937288eb18fa2ce9a24dd931a8440626177902c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+beta-2023-12-22" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd6a27610d4dbda3f4746b76c652ffacef55f7256c82d12a5aba5db1352fdfe6
[INFO] running `Command { std: "docker" "start" "-a" "dd6a27610d4dbda3f4746b76c652ffacef55f7256c82d12a5aba5db1352fdfe6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror v1.0.39
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]     Checking indent v0.1.1
[INFO] [stderr]     Checking text_io v0.1.12
[INFO] [stderr]    Compiling thiserror-impl v1.0.39
[INFO] [stderr]    Compiling pest v2.5.6
[INFO] [stderr]    Compiling pest_meta v2.5.6
[INFO] [stderr]    Compiling pest_generator v2.5.6
[INFO] [stderr]    Compiling pest_derive v2.5.6
[INFO] [stderr]  Documenting klang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_chains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[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 `klang`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type bin --crate-name klang src/main.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=94c89917faae6598 -L dependency=/opt/rustwide/target/debug/deps --extern indent=/opt/rustwide/target/debug/deps/libindent-2de9ae80964de153.rmeta --extern pest=/opt/rustwide/target/debug/deps/libpest-142e093ba9ac8bda.rmeta --extern pest_derive=/opt/rustwide/target/debug/deps/libpest_derive-9582690680f8eec2.so --extern text_io=/opt/rustwide/target/debug/deps/libtext_io-cbddc1aa9d3036ea.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "dd6a27610d4dbda3f4746b76c652ffacef55f7256c82d12a5aba5db1352fdfe6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd6a27610d4dbda3f4746b76c652ffacef55f7256c82d12a5aba5db1352fdfe6", kill_on_drop: false }`
[INFO] [stdout] dd6a27610d4dbda3f4746b76c652ffacef55f7256c82d12a5aba5db1352fdfe6
