[INFO] cloning repository https://github.com/embassy-rs/docserver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/embassy-rs/docserver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fembassy-rs%2Fdocserver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fembassy-rs%2Fdocserver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2067396fd6916bcfd0ac3e644d05ff1b36828b76
[INFO] documenting embassy-rs/docserver 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%2Fembassy-rs%2Fdocserver" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/embassy-rs/docserver 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/embassy-rs/docserver
[INFO] finished tweaking git repo https://github.com/embassy-rs/docserver
[INFO] tweaked toml for git repo https://github.com/embassy-rs/docserver written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/embassy-rs/docserver 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded humansize v1.1.1
[INFO] [stderr]   Downloaded unic-ucd-segment v0.9.0
[INFO] [stderr]   Downloaded unic-segment v0.9.0
[INFO] [stderr]   Downloaded tera v1.15.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] c76fa8ac84cebaca380c269ce0a65b521b46f2d2d1ea8ca6b4c045462f5590f4
[INFO] running `Command { std: "docker" "start" "-a" "c76fa8ac84cebaca380c269ce0a65b521b46f2d2d1ea8ca6b4c045462f5590f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c76fa8ac84cebaca380c269ce0a65b521b46f2d2d1ea8ca6b4c045462f5590f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c76fa8ac84cebaca380c269ce0a65b521b46f2d2d1ea8ca6b4c045462f5590f4", kill_on_drop: false }`
[INFO] [stdout] c76fa8ac84cebaca380c269ce0a65b521b46f2d2d1ea8ca6b4c045462f5590f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] 9e3a7f35cc1b24673599e93dd77dd64d905b980dd046bab7e7121bdaeeb113ac
[INFO] running `Command { std: "docker" "start" "-a" "9e3a7f35cc1b24673599e93dd77dd64d905b980dd046bab7e7121bdaeeb113ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking unic-char-range v0.9.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking unic-common v0.9.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling zstd-safe v4.1.3+zstd.1.5.1
[INFO] [stderr]     Checking deunicode v0.4.3
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]     Checking humansize v1.1.1
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]    Compiling uncased v0.9.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]     Checking tracing-core v0.1.23
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking unic-ucd-version v0.9.0
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking slug v0.1.4
[INFO] [stderr]     Checking unic-char-property v0.9.0
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking tracing v0.1.32
[INFO] [stderr]     Checking sha2 v0.10.2
[INFO] [stderr]     Checking unic-ucd-segment v0.9.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]     Checking crossbeam v0.8.1
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]     Checking phf v0.10.1
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]     Checking unic-segment v0.9.0
[INFO] [stderr]     Checking mio v0.8.2
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking memmap2 v0.5.3
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]    Compiling zstd-sys v1.6.2+zstd.1.5.1
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]    Compiling phf_codegen v0.10.0
[INFO] [stderr]    Compiling chrono-tz-build v0.0.2
[INFO] [stderr]    Compiling chrono-tz v0.6.1
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking h2 v0.3.12
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking tera v1.15.0
[INFO] [stderr]     Checking hyper v0.14.18
[INFO] [stderr]     Checking zstd v0.9.2+zstd.1.5.1
[INFO] [stderr]  Documenting docserver2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/bin/zup.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io_error_more)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/bin/zup.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(let_else)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/bin/builder.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io_error_more)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/bin/builder.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(let_else)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/bin/server.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io_error_more)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/bin/server.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(let_else)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `docserver2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name zup src/bin/zup.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=5d1cbdeb2403dafa -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-ee185080059e5b20.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-c4a0055750f3a228.rmeta --extern hyper=/opt/rustwide/target/debug/deps/libhyper-8978e87f3aa378a3.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-92115a31ee9ca72b.rmeta --extern memmap2=/opt/rustwide/target/debug/deps/libmemmap2-bf85ca3e6581ed97.rmeta --extern pretty_env_logger=/opt/rustwide/target/debug/deps/libpretty_env_logger-f893e5fc81adde34.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-cb768725e26a3b91.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-7e49e7058ce6d22f.rmeta --extern sha2=/opt/rustwide/target/debug/deps/libsha2-9e0f5c8a51d23dc1.rmeta --extern tera=/opt/rustwide/target/debug/deps/libtera-9473c07cd728a351.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-8bdaa08e91e1af6d.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-0079523b0db1e9df.rmeta --extern zstd=/opt/rustwide/target/debug/deps/libzstd-14d8c195608beb64.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not document `docserver2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name builder src/bin/builder.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=92fded7c9d9fe170 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-ee185080059e5b20.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-c4a0055750f3a228.rmeta --extern hyper=/opt/rustwide/target/debug/deps/libhyper-8978e87f3aa378a3.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-92115a31ee9ca72b.rmeta --extern memmap2=/opt/rustwide/target/debug/deps/libmemmap2-bf85ca3e6581ed97.rmeta --extern pretty_env_logger=/opt/rustwide/target/debug/deps/libpretty_env_logger-f893e5fc81adde34.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-cb768725e26a3b91.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-7e49e7058ce6d22f.rmeta --extern sha2=/opt/rustwide/target/debug/deps/libsha2-9e0f5c8a51d23dc1.rmeta --extern tera=/opt/rustwide/target/debug/deps/libtera-9473c07cd728a351.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-8bdaa08e91e1af6d.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-0079523b0db1e9df.rmeta --extern zstd=/opt/rustwide/target/debug/deps/libzstd-14d8c195608beb64.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `docserver2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name server src/bin/server.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=472bdf79807934fd -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-ee185080059e5b20.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-c4a0055750f3a228.rmeta --extern hyper=/opt/rustwide/target/debug/deps/libhyper-8978e87f3aa378a3.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-92115a31ee9ca72b.rmeta --extern memmap2=/opt/rustwide/target/debug/deps/libmemmap2-bf85ca3e6581ed97.rmeta --extern pretty_env_logger=/opt/rustwide/target/debug/deps/libpretty_env_logger-f893e5fc81adde34.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-cb768725e26a3b91.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-7e49e7058ce6d22f.rmeta --extern sha2=/opt/rustwide/target/debug/deps/libsha2-9e0f5c8a51d23dc1.rmeta --extern tera=/opt/rustwide/target/debug/deps/libtera-9473c07cd728a351.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-8bdaa08e91e1af6d.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-0079523b0db1e9df.rmeta --extern zstd=/opt/rustwide/target/debug/deps/libzstd-14d8c195608beb64.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "9e3a7f35cc1b24673599e93dd77dd64d905b980dd046bab7e7121bdaeeb113ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e3a7f35cc1b24673599e93dd77dd64d905b980dd046bab7e7121bdaeeb113ac", kill_on_drop: false }`
[INFO] [stdout] 9e3a7f35cc1b24673599e93dd77dd64d905b980dd046bab7e7121bdaeeb113ac