[INFO] fetching crate goldboot 0.0.1...
[INFO] documenting goldboot-0.0.1 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate goldboot 0.0.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate goldboot 0.0.1 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 goldboot 0.0.1
[INFO] finished tweaking crates.io crate goldboot 0.0.1
[INFO] tweaked toml for crates.io crate goldboot 0.0.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate goldboot 0.0.1 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 validator_types v0.15.0
[INFO] [stderr]   Downloaded whoami v1.2.1
[INFO] [stderr]   Downloaded simple-error v0.2.3
[INFO] [stderr]   Downloaded sha1 v0.10.1
[INFO] [stderr]   Downloaded aes-gcm v0.9.4
[INFO] [stderr]   Downloaded rust-embed-utils v7.2.0
[INFO] [stderr]   Downloaded aead v0.4.3
[INFO] [stderr]   Downloaded ctr v0.8.0
[INFO] [stderr]   Downloaded validator_derive v0.15.0
[INFO] [stderr]   Downloaded tracing-core v0.1.28
[INFO] [stderr]   Downloaded openssl-sys v0.9.74
[INFO] [stderr]   Downloaded hyper v0.14.19
[INFO] [stderr]   Downloaded zstd-sys v1.6.3+zstd.1.5.2
[INFO] [stderr]   Downloaded libz-sys v1.1.8
[INFO] [stderr]   Downloaded openssl-src v111.21.0+1.1.1p
[INFO] [stderr]   Downloaded binrw v0.9.1
[INFO] [stderr]   Downloaded vnc v0.4.0
[INFO] [stderr]   Downloaded binrw_derive v0.9.0
[INFO] [stderr]   Downloaded rust-embed v6.4.0
[INFO] [stderr]   Downloaded clap v3.2.6
[INFO] [stderr]   Downloaded bzip2-rs v0.1.2
[INFO] [stderr]   Downloaded unicode-normalization v0.1.20
[INFO] [stderr]   Downloaded png v0.17.5
[INFO] [stderr]   Downloaded ssh2 v0.9.3
[INFO] [stderr]   Downloaded owo-colors v3.4.0
[INFO] [stderr]   Downloaded zstd-safe v4.1.6+zstd.1.5.2
[INFO] [stderr]   Downloaded validator v0.15.0
[INFO] [stderr]   Downloaded miniz_oxide v0.5.3
[INFO] [stderr]   Downloaded ghash v0.4.4
[INFO] [stderr]   Downloaded smallvec v1.8.1
[INFO] [stderr]   Downloaded ubyte v0.10.2
[INFO] [stderr]   Downloaded clap_derive v3.2.6
[INFO] [stderr]   Downloaded zstd v0.10.2+zstd.1.5.2
[INFO] [stderr]   Downloaded polyval v0.5.3
[INFO] [stderr]   Downloaded array-init v2.0.1
[INFO] [stderr]   Downloaded test-env-log v0.2.8
[INFO] [stderr]   Downloaded clap_lex v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 52d5512a7ea77e4585a098ca4f4cfc51db7fb6b4a08159aaa6c0abc447eba2e1
[INFO] running `Command { std: "docker" "start" "-a" "52d5512a7ea77e4585a098ca4f4cfc51db7fb6b4a08159aaa6c0abc447eba2e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52d5512a7ea77e4585a098ca4f4cfc51db7fb6b4a08159aaa6c0abc447eba2e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52d5512a7ea77e4585a098ca4f4cfc51db7fb6b4a08159aaa6c0abc447eba2e1", kill_on_drop: false }`
[INFO] [stdout] 52d5512a7ea77e4585a098ca4f4cfc51db7fb6b4a08159aaa6c0abc447eba2e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a53da9ecf53c8f6318e9c2fa1d7c84edc6a87bacdb183b5e91159652be760ce2
[INFO] running `Command { std: "docker" "start" "-a" "a53da9ecf53c8f6318e9c2fa1d7c84edc6a87bacdb183b5e91159652be760ce2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking hashbrown v0.12.1
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking unicode-normalization v0.1.20
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking tracing-core v0.1.28
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]    Compiling cpufeatures v0.2.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking universal-hash v0.4.1
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]     Checking tracing v0.1.35
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling binrw_derive v0.9.0
[INFO] [stderr]    Compiling zstd-safe v4.1.6+zstd.1.5.2
[INFO] [stderr]     Checking smallvec v1.8.1
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking polyval v0.5.3
[INFO] [stderr]     Checking os_str_bytes v6.1.0
[INFO] [stderr]    Compiling owo-colors v3.4.0
[INFO] [stderr]     Checking tokio v1.19.2
[INFO] [stderr]    Compiling if_chain v1.0.2
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking ghash v0.4.4
[INFO] [stderr]     Checking clap_lex v0.2.3
[INFO] [stderr]    Compiling rust-embed-utils v7.2.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling openssl-src v111.21.0+1.1.1p
[INFO] [stderr]     Checking deflate v1.0.0
[INFO] [stderr]     Checking aead v0.4.3
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking ctr v0.8.0
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking array-init v2.0.1
[INFO] [stderr]     Checking png v0.17.5
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking sha1 v0.10.1
[INFO] [stderr]     Checking sha2 v0.10.2
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking aes-gcm v0.9.4
[INFO] [stderr]     Checking bzip2-rs v0.1.2
[INFO] [stderr]     Checking ubyte v0.10.2
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking simple-error v0.2.3
[INFO] [stderr]     Checking whoami v1.2.1
[INFO] [stderr]    Compiling openssl-sys v0.9.74
[INFO] [stderr]    Compiling libz-sys v1.1.8
[INFO] [stderr]    Compiling zstd-sys v1.6.3+zstd.1.5.2
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling libssh2-sys v0.2.23
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking indicatif v0.16.2
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking vnc v0.4.0
[INFO] [stderr]     Checking tokio-util v0.7.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling validator_types v0.15.0
[INFO] [stderr]     Checking h2 v0.3.13
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling openssl-macros v0.1.0
[INFO] [stderr]     Checking hyper v0.14.19
[INFO] [stderr]    Compiling clap_derive v3.2.6
[INFO] [stderr]    Compiling validator_derive v0.15.0
[INFO] [stderr]    Compiling rust-embed-impl v6.2.0
[INFO] [stderr]     Checking rust-embed v6.4.0
[INFO] [stderr]     Checking clap v3.2.6
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]     Checking binrw v0.9.1
[INFO] [stderr]     Checking serde_json v1.0.81
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking quick-xml v0.23.0
[INFO] [stderr]     Checking validator v0.15.0
[INFO] [stderr]     Checking zstd v0.10.2+zstd.1.5.2
[INFO] [stderr]    Compiling openssl v0.10.40
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]     Checking ssh2 v0.9.3
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.11
[INFO] [stderr]  Documenting goldboot v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(seek_stream_len)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(let_chains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 `goldboot`
[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=2021 --crate-type lib --crate-name goldboot src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=575a4d2e92dbd0cc -L dependency=/opt/rustwide/target/debug/deps --extern aes_gcm=/opt/rustwide/target/debug/deps/libaes_gcm-371664ea1eb3fb0b.rmeta --extern binrw=/opt/rustwide/target/debug/deps/libbinrw-730cdc1fd8f2b949.rmeta --extern bzip2_rs=/opt/rustwide/target/debug/deps/libbzip2_rs-0378a155e5db0798.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-93f3bfd3d36a7f6b.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-749f080bfaf5a71b.rmeta --extern colored=/opt/rustwide/target/debug/deps/libcolored-d0ef701790f4a520.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-6ad8dddbb3ea6987.rmeta --extern flate2=/opt/rustwide/target/debug/deps/libflate2-6c475ffed92452af.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-a89e095190f56c37.rmeta --extern indicatif=/opt/rustwide/target/debug/deps/libindicatif-5689f47c430d60e7.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-4c2a46cd83655339.rmeta --extern png=/opt/rustwide/target/debug/deps/libpng-a55a7b47429a6a22.rmeta --extern quick_xml=/opt/rustwide/target/debug/deps/libquick_xml-48fc6209a89550c6.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2e088726c0ac656d.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-e2a4b1a9de0a52d6.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-1219ca996299900c.rmeta --extern rust_embed=/opt/rustwide/target/debug/deps/librust_embed-a09549506d325499.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-ee000df58b8ff0d2.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-5bfa4da17cf91550.rmeta --extern sha1=/opt/rustwide/target/debug/deps/libsha1-4b713d41c12b9d3a.rmeta --extern sha2=/opt/rustwide/target/debug/deps/libsha2-c99a986f2b9309eb.rmeta --extern simple_error=/opt/rustwide/target/debug/deps/libsimple_error-377e3e0e11589ce4.rmeta --extern ssh2=/opt/rustwide/target/debug/deps/libssh2-a8acce2344267d5e.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-af9dc0fa588e2b5f.rmeta --extern ubyte=/opt/rustwide/target/debug/deps/libubyte-51c07185e1da2c78.rmeta --extern validator=/opt/rustwide/target/debug/deps/libvalidator-71b9af3dc60850b4.rmeta --extern vnc=/opt/rustwide/target/debug/deps/libvnc-3591cae4edf2f6f4.rmeta --extern whoami=/opt/rustwide/target/debug/deps/libwhoami-1735ef7ab2567e10.rmeta --extern zstd=/opt/rustwide/target/debug/deps/libzstd-6f308123a34e7d8a.rmeta --cap-lints=warn --crate-version 0.0.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "a53da9ecf53c8f6318e9c2fa1d7c84edc6a87bacdb183b5e91159652be760ce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a53da9ecf53c8f6318e9c2fa1d7c84edc6a87bacdb183b5e91159652be760ce2", kill_on_drop: false }`
[INFO] [stdout] a53da9ecf53c8f6318e9c2fa1d7c84edc6a87bacdb183b5e91159652be760ce2
