[INFO] fetching crate hid-io-client 0.1.3...
[INFO] documenting hid-io-client-0.1.3 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate hid-io-client 0.1.3 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate hid-io-client 0.1.3 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 crates.io crate hid-io-client 0.1.3
[INFO] finished tweaking crates.io crate hid-io-client 0.1.3
[INFO] tweaked toml for crates.io crate hid-io-client 0.1.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate hid-io-client 0.1.3 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 capnpc v0.14.9
[INFO] [stderr]   Downloaded cargo-lock v9.0.0
[INFO] [stderr]   Downloaded nanoid v0.4.0
[INFO] [stderr]   Downloaded capnp-rpc v0.14.1
[INFO] [stderr]   Downloaded open v3.2.0
[INFO] [stderr]   Downloaded built v0.6.1
[INFO] [stderr]   Downloaded ctrlc v3.4.1
[INFO] [stderr]   Downloaded windows-service v0.5.0
[INFO] [stderr]   Downloaded rcgen v0.11.1
[INFO] [stderr]   Downloaded hid-io-protocol v0.1.6
[INFO] [stderr]   Downloaded syn v2.0.31
[INFO] [stderr]   Downloaded hid-io-core v0.1.4
[INFO] [stderr]   Downloaded libgit2-sys v0.15.2+1.6.4
[INFO] [stderr]   Downloaded git2 v0.17.2
[INFO] [stderr]   Downloaded chrono v0.4.30
[INFO] [stderr]   Downloaded flexi_logger v0.25.6
[INFO] [stderr]   Downloaded pem v2.0.1
[INFO] [stderr]   Downloaded sys-info v0.9.1
[INFO] [stderr]   Downloaded os_str_bytes v6.5.1
[INFO] [stderr]   Downloaded kll-macros v0.1.2
[INFO] [stderr]   Downloaded err-derive v0.3.1
[INFO] [stderr]   Downloaded capnp-futures v0.14.2
[INFO] [stderr]   Downloaded webpki v0.22.1
[INFO] [stderr]   Downloaded kll-hid v0.1.2
[INFO] [stderr]   Downloaded kll-core v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 8e91e1cb0ad06369ce0fdfa6cffffe45aa85c2e8ff488c1d2dc8f4bdd9e5d631
[INFO] running `Command { std: "docker" "start" "-a" "8e91e1cb0ad06369ce0fdfa6cffffe45aa85c2e8ff488c1d2dc8f4bdd9e5d631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e91e1cb0ad06369ce0fdfa6cffffe45aa85c2e8ff488c1d2dc8f4bdd9e5d631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e91e1cb0ad06369ce0fdfa6cffffe45aa85c2e8ff488c1d2dc8f4bdd9e5d631", kill_on_drop: false }`
[INFO] [stdout] 8e91e1cb0ad06369ce0fdfa6cffffe45aa85c2e8ff488c1d2dc8f4bdd9e5d631
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b273fd32ea9c947c39e146c0fd0b259f70185ad6036e4e3a65e62db8c91bbc87
[INFO] running `Command { std: "docker" "start" "-a" "b273fd32ea9c947c39e146c0fd0b259f70185ad6036e4e3a65e62db8c91bbc87", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling semver v1.0.18
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling percent-encoding v2.3.0
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling form_urlencoded v1.2.0
[INFO] [stderr]    Compiling winnow v0.5.15
[INFO] [stderr]    Compiling idna v0.4.0
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]    Compiling rustix v0.38.11
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling iana-time-zone v0.1.57
[INFO] [stderr]     Checking linux-raw-sys v0.4.5
[INFO] [stderr]     Checking aho-corasick v1.0.5
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling thiserror v1.0.48
[INFO] [stderr]    Compiling indexmap v2.0.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]    Compiling capnp v0.14.11
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling url v2.4.1
[INFO] [stderr]    Compiling rustls v0.20.9
[INFO] [stderr]     Checking deranged v0.3.8
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]    Compiling syn v2.0.31
[INFO] [stderr]    Compiling jobserver v0.1.26
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking time-core v0.1.1
[INFO] [stderr]    Compiling rustls v0.21.7
[INFO] [stderr]     Checking os_str_bytes v6.5.1
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling chrono v0.4.30
[INFO] [stderr]     Checking kll-hid v0.1.2
[INFO] [stderr]    Compiling kll-macros v0.1.2
[INFO] [stderr]     Checking base64 v0.21.3
[INFO] [stderr]    Compiling capnpc v0.14.9
[INFO] [stderr]     Checking time v0.3.28
[INFO] [stderr]     Checking pem v2.0.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.3
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking fastrand v2.0.0
[INFO] [stderr]     Checking textwrap v0.16.0
[INFO] [stderr]     Checking yasna v0.5.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking nu-ansi-term v0.49.0
[INFO] [stderr]     Checking open v3.2.0
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling libz-sys v1.1.12
[INFO] [stderr]    Compiling libgit2-sys v0.15.2+1.6.4
[INFO] [stderr]    Compiling sys-info v0.9.1
[INFO] [stderr]     Checking regex-automata v0.3.8
[INFO] [stderr]     Checking nanoid v0.4.0
[INFO] [stderr]     Checking ctrlc v3.4.1
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking tempfile v3.8.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.11
[INFO] [stderr]    Compiling enum-primitive-derive v0.2.2
[INFO] [stderr]     Checking num_enum v0.5.11
[INFO] [stderr]     Checking regex v1.9.5
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.48
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking webpki v0.22.1
[INFO] [stderr]     Checking rustls-webpki v0.101.4
[INFO] [stderr]     Checking rcgen v0.11.1
[INFO] [stderr]     Checking flexi_logger v0.25.6
[INFO] [stderr]    Compiling git2 v0.17.2
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking tokio-rustls v0.23.4
[INFO] [stderr]     Checking tokio-stream v0.1.14
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking capnp-futures v0.14.2
[INFO] [stderr]     Checking capnp-rpc v0.14.1
[INFO] [stderr]    Compiling toml_datetime v0.6.3
[INFO] [stderr]    Compiling serde_spanned v0.6.3
[INFO] [stderr]    Compiling toml_edit v0.19.14
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling heapless v0.7.16
[INFO] [stderr]     Checking kll-core v0.1.8
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/kll-core-0.1.8/src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![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 compile `kll-core` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b273fd32ea9c947c39e146c0fd0b259f70185ad6036e4e3a65e62db8c91bbc87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b273fd32ea9c947c39e146c0fd0b259f70185ad6036e4e3a65e62db8c91bbc87", kill_on_drop: false }`
[INFO] [stdout] b273fd32ea9c947c39e146c0fd0b259f70185ad6036e4e3a65e62db8c91bbc87
