[INFO] fetching crate frawk 0.4.8...
[INFO] documenting frawk-0.4.8 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate frawk 0.4.8 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate frawk 0.4.8 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] removed /workspace/builds/worker-3-tc1/source/.cargo/config
[INFO] started tweaking crates.io crate frawk 0.4.8
[INFO] finished tweaking crates.io crate frawk 0.4.8
[INFO] tweaked toml for crates.io crate frawk 0.4.8 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate frawk 0.4.8 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 proc-macro2 v1.0.37
[INFO] [stderr]   Downloaded tikv-jemallocator v0.4.3
[INFO] [stderr]   Downloaded globset v0.4.8
[INFO] [stderr]   Downloaded parking_lot v0.12.0
[INFO] [stderr]   Downloaded grep-cli v0.1.6
[INFO] [stderr]   Downloaded wasmtime-jit-icache-coherence v6.0.1
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.93.1
[INFO] [stderr]   Downloaded cranelift-native v0.93.1
[INFO] [stderr]   Downloaded crossbeam-queue v0.3.5
[INFO] [stderr]   Downloaded slice-group-by v0.3.0
[INFO] [stderr]   Downloaded fs_extra v1.2.0
[INFO] [stderr]   Downloaded lalrpop-util v0.19.8
[INFO] [stderr]   Downloaded cranelift-entity v0.93.1
[INFO] [stderr]   Downloaded cranelift-isle v0.93.1
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.93.1
[INFO] [stderr]   Downloaded clap v3.1.8
[INFO] [stderr]   Downloaded tikv-jemalloc-sys v0.4.3+5.2.1-patched.2
[INFO] [stderr]   Downloaded windows-sys v0.34.0
[INFO] [stderr]   Downloaded cranelift v0.93.1
[INFO] [stderr]   Downloaded llvm-sys v120.2.3
[INFO] [stderr]   Downloaded cranelift-jit v0.93.1
[INFO] [stderr]   Downloaded cranelift-module v0.93.1
[INFO] [stderr]   Downloaded cranelift-codegen v0.93.1
[INFO] [stderr]   Downloaded syn v1.0.91
[INFO] [stderr]   Downloaded lalrpop v0.19.7
[INFO] [stderr]   Downloaded crossbeam v0.8.1
[INFO] [stderr]   Downloaded rustix v0.36.7
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.8
[INFO] [stderr]   Downloaded anyhow v1.0.56
[INFO] [stderr]   Downloaded cranelift-frontend v0.93.1
[INFO] [stderr]   Downloaded cranelift-bforest v0.93.1
[INFO] [stderr]   Downloaded parking_lot_core v0.9.2
[INFO] [stderr]   Downloaded quote v1.0.17
[INFO] [stderr]   Downloaded target-lexicon v0.12.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] f1806ce834cc1d94169ca6b25e32097bf53b085f05899db567120471e6ebcde3
[INFO] running `Command { std: "docker" "start" "-a" "f1806ce834cc1d94169ca6b25e32097bf53b085f05899db567120471e6ebcde3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1806ce834cc1d94169ca6b25e32097bf53b085f05899db567120471e6ebcde3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1806ce834cc1d94169ca6b25e32097bf53b085f05899db567120471e6ebcde3", kill_on_drop: false }`
[INFO] [stdout] f1806ce834cc1d94169ca6b25e32097bf53b085f05899db567120471e6ebcde3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2677799438d0cab9a797d042be2f7527ac6d9a2efee150e7af9eaa3b666347e7
[INFO] running `Command { std: "docker" "start" "-a" "2677799438d0cab9a797d042be2f7527ac6d9a2efee150e7af9eaa3b666347e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling cranelift-isle v0.93.1
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.93.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling target-lexicon v0.12.3
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.93.1
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.2
[INFO] [stderr]     Checking slice-group-by v0.3.0
[INFO] [stderr]     Checking cranelift-entity v0.93.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking bumpalo v3.12.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking cranelift-bforest v0.93.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking regalloc2 v0.5.1
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling fs_extra v1.2.0
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling tikv-jemalloc-sys v0.4.3+5.2.1-patched.2
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling crossbeam-queue v0.3.5
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling pico-args v0.4.2
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]    Compiling string_cache v0.8.4
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking wasmtime-jit-icache-coherence v6.0.1
[INFO] [stderr]     Checking fixedbitset v0.4.1
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking crossbeam v0.8.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking fast-float v0.2.0
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking petgraph v0.6.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking clap v3.1.8
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling lalrpop-util v0.19.8
[INFO] [stderr]    Compiling cranelift-codegen v0.93.1
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]    Compiling llvm-sys v120.2.3
[INFO] [stderr]    Compiling lalrpop v0.19.7
[INFO] [stderr]     Checking assert_cmd v2.0.4
[INFO] [stderr]     Checking grep-cli v0.1.6
[INFO] [stderr]    Compiling frawk v0.4.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking cranelift-frontend v0.93.1
[INFO] [stderr]     Checking cranelift-native v0.93.1
[INFO] [stderr]     Checking cranelift-module v0.93.1
[INFO] [stderr]     Checking cranelift-jit v0.93.1
[INFO] [stderr]     Checking cranelift v0.93.1
[INFO] [stderr]     Checking tikv-jemallocator v0.4.3
[INFO] [stderr]  Documenting frawk v0.4.8 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:43
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(feature = "unstable", feature(core_intrinsics))]
[INFO] [stdout]   |                                           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:3:43
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(feature = "unstable", feature(test))]
[INFO] [stdout]   |                                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:4:43
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![cfg_attr(feature = "unstable", feature(write_all_vectored))]
[INFO] [stdout]   |                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unclosed HTML tag `literal`
[INFO] [stdout]     --> src/compile.rs:2007:38
[INFO] [stdout]      |
[INFO] [stdout] 2007 | /// For regex patterns of the form "^<literal>", return a copy of the literal.
[INFO] [stdout]      |                                      ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(rustdoc::invalid_html_tags)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `frawk`
[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=2018 --crate-type bin --crate-name frawk src/main.rs -o /opt/rustwide/target/doc --cfg 'feature="allow_avx2"' --cfg 'feature="default"' --cfg 'feature="llvm-sys"' --cfg 'feature="llvm_backend"' --cfg 'feature="tikv-jemallocator"' --cfg 'feature="unstable"' --cfg 'feature="use_jemalloc"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=ff18b20d56c01a5f -L dependency=/opt/rustwide/target/debug/deps --extern assert_cmd=/opt/rustwide/target/debug/deps/libassert_cmd-2516b728e425c6dd.rmeta --extern bumpalo=/opt/rustwide/target/debug/deps/libbumpalo-43a56581696f629a.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-1b06147f67f93fdc.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-65ffedae20a30862.rmeta --extern cranelift=/opt/rustwide/target/debug/deps/libcranelift-78c7aaff6d0c8e10.rmeta --extern cranelift_codegen=/opt/rustwide/target/debug/deps/libcranelift_codegen-3fe127ad421a2c34.rmeta --extern cranelift_frontend=/opt/rustwide/target/debug/deps/libcranelift_frontend-7d76568b785c9eba.rmeta --extern cranelift_jit=/opt/rustwide/target/debug/deps/libcranelift_jit-ab53bc3c11f56783.rmeta --extern cranelift_module=/opt/rustwide/target/debug/deps/libcranelift_module-17b78c7e2c38e5b2.rmeta --extern cranelift_native=/opt/rustwide/target/debug/deps/libcranelift_native-3bc3b64ab4884446.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-4bbfc4d95f66c22b.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-a74943f82d955572.rmeta --extern fast_float=/opt/rustwide/target/debug/deps/libfast_float-bbdc242d72d4c3d9.rmeta --extern grep_cli=/opt/rustwide/target/debug/deps/libgrep_cli-927b5b9f0e9f9655.rmeta --extern hashbrown=/opt/rustwide/target/debug/deps/libhashbrown-0009e3e94c3d1388.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-7d05e296b1c6f970.rmeta --extern itoa=/opt/rustwide/target/debug/deps/libitoa-97517b3bb0a4f890.rmeta --extern lalrpop_util=/opt/rustwide/target/debug/deps/liblalrpop_util-6dbfc65745eae62d.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-e7445b4e8703c20b.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-ad121807790b26c6.rmeta --extern llvm_sys=/opt/rustwide/target/debug/deps/libllvm_sys-6058822bdcebf8ba.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-50737135393cba16.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-0f594354ba715629.rmeta --extern paste=/opt/rustwide/target/debug/deps/libpaste-fec6d297b0d79b50.so --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-cf6b26111c639943.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-833b7b8ab945f518.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-782f8fbfed8096df.rmeta --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-044868c10398d04d.rmeta --extern ryu=/opt/rustwide/target/debug/deps/libryu-6fc544aeb75ec89c.rmeta --extern smallvec=/opt/rustwide/target/debug/deps/libsmallvec-9b815f4fbf8d626a.rmeta --extern target_lexicon=/opt/rustwide/target/debug/deps/libtarget_lexicon-78a80976612afdc4.rmeta --extern termcolor=/opt/rustwide/target/debug/deps/libtermcolor-051adb23d9045754.rmeta --extern tikv_jemallocator=/opt/rustwide/target/debug/deps/libtikv_jemallocator-f69f475a54cc6940.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-73d77586240180ba.rmeta --cap-lints=warn --crate-version 0.4.8` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "2677799438d0cab9a797d042be2f7527ac6d9a2efee150e7af9eaa3b666347e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2677799438d0cab9a797d042be2f7527ac6d9a2efee150e7af9eaa3b666347e7", kill_on_drop: false }`
[INFO] [stdout] 2677799438d0cab9a797d042be2f7527ac6d9a2efee150e7af9eaa3b666347e7
