[INFO] cloning repository https://github.com/Crypec/zuse
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Crypec/zuse" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrypec%2Fzuse", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrypec%2Fzuse'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 69e799033bd122fe369cfd7f1982b7a5039e6d52
[INFO] documenting Crypec/zuse 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%2FCrypec%2Fzuse" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Crypec/zuse 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/Crypec/zuse
[INFO] finished tweaking git repo https://github.com/Crypec/zuse
[INFO] tweaked toml for git repo https://github.com/Crypec/zuse written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/Crypec/zuse 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 pretty_assertions v0.7.2
[INFO] [stderr]   Downloaded parse-display-derive v0.4.1
[INFO] [stderr]   Downloaded parse-display v0.4.1
[INFO] [stderr]   Downloaded typed-builder v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 3f5bd10cfdda47de0397349c5b4e33af8452fa7370fb6b5c986b34e96e474de6
[INFO] running `Command { std: "docker" "start" "-a" "3f5bd10cfdda47de0397349c5b4e33af8452fa7370fb6b5c986b34e96e474de6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f5bd10cfdda47de0397349c5b4e33af8452fa7370fb6b5c986b34e96e474de6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f5bd10cfdda47de0397349c5b4e33af8452fa7370fb6b5c986b34e96e474de6", kill_on_drop: false }`
[INFO] [stdout] 3f5bd10cfdda47de0397349c5b4e33af8452fa7370fb6b5c986b34e96e474de6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 3f06c2ad155805f0667b7eac592163aa97cecc72232dd091bdc158b7b62a99bf
[INFO] running `Command { std: "docker" "start" "-a" "3f06c2ad155805f0667b7eac592163aa97cecc72232dd091bdc158b7b62a99bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking konrad_span v0.1.0 (/opt/rustwide/workdir/compiler/konrad_span)
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]  Documenting konrad_span v0.1.0 (/opt/rustwide/workdir/compiler/konrad_span)
[INFO] [stderr]     Checking konrad_typer v0.1.0 (/opt/rustwide/workdir/compiler/konrad_typer)
[INFO] [stderr]  Documenting konrad_typer v0.1.0 (/opt/rustwide/workdir/compiler/konrad_typer)
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]    Compiling typed-builder v0.9.0
[INFO] [stderr]    Compiling parse-display-derive v0.4.1
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking konrad_err v0.1.0 (/opt/rustwide/workdir/compiler/konrad_err)
[INFO] [stderr]  Documenting konrad_err v0.1.0 (/opt/rustwide/workdir/compiler/konrad_err)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> compiler/konrad_err/src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(iter_intersperse)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> compiler/konrad_err/src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(iter_intersperse)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `konrad_err` due to 2 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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 `konrad_err`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name konrad_err compiler/konrad_err/src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=55e0e6e308723645 -L dependency=/opt/rustwide/target/debug/deps --extern colored=/opt/rustwide/target/debug/deps/libcolored-47f9a59c35ce7349.rmeta --extern konrad_span=/opt/rustwide/target/debug/deps/libkonrad_span-8d70b6f0bcb0ac57.rmeta --extern typed_builder=/opt/rustwide/target/debug/deps/libtyped_builder-476ec3f621e5077d.so --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "3f06c2ad155805f0667b7eac592163aa97cecc72232dd091bdc158b7b62a99bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f06c2ad155805f0667b7eac592163aa97cecc72232dd091bdc158b7b62a99bf", kill_on_drop: false }`
[INFO] [stdout] 3f06c2ad155805f0667b7eac592163aa97cecc72232dd091bdc158b7b62a99bf