[INFO] cloning repository https://github.com/dustlang/docs.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dustlang/docs.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdustlang%2Fdocs.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdustlang%2Fdocs.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 410c660a4169afe669b161ca80901dcfe5259c24
[INFO] checking dustlang/docs.rs against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdustlang%2Fdocs.rs" "/workspace/builds/worker-93/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-93/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dustlang/docs.rs on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-93/source/.cargo/config
[INFO] started tweaking git repo https://github.com/dustlang/docs.rs
[INFO] finished tweaking git repo https://github.com/dustlang/docs.rs
[INFO] tweaked toml for git repo https://github.com/dustlang/docs.rs written to /workspace/builds/worker-93/source/Cargo.toml
[INFO] crate git repo https://github.com/dustlang/docs.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a400ca0a058bc26e13a3bf06a3a32972ae82adc5a987c1da8f73dbf1fe678460
[INFO] running `Command { std: "docker" "start" "-a" "a400ca0a058bc26e13a3bf06a3a32972ae82adc5a987c1da8f73dbf1fe678460", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a400ca0a058bc26e13a3bf06a3a32972ae82adc5a987c1da8f73dbf1fe678460", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a400ca0a058bc26e13a3bf06a3a32972ae82adc5a987c1da8f73dbf1fe678460", kill_on_drop: false }`
[INFO] [stdout] a400ca0a058bc26e13a3bf06a3a32972ae82adc5a987c1da8f73dbf1fe678460
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66638275273b0269d36f01698ca93d8855f3389c22c1fc3dde9799b8e094f9d6
[INFO] running `Command { std: "docker" "start" "-a" "66638275273b0269d36f01698ca93d8855f3389c22c1fc3dde9799b8e094f9d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking arc-swap v0.4.8
[INFO] [stderr]     Checking pin-project-lite v0.1.5
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]     Checking base64 v0.12.1
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking subtle v2.2.3
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking hashbrown v0.9.0
[INFO] [stderr]     Checking dtoa v0.4.5
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]    Compiling standback v0.2.8
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking instant v0.1.6
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling encoding_rs v0.8.23
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]     Checking unic-common v0.9.0
[INFO] [stderr]     Checking ttf-parser v0.6.1
[INFO] [stderr]    Compiling procedural-masquerade v0.1.7
[INFO] [stderr]     Checking unic-char-range v0.9.0
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.2
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]    Compiling docsrs-metadata v0.1.0 (/opt/rustwide/workdir/crates/metadata)
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling font-awesome-as-a-crate v0.1.2 (/opt/rustwide/workdir/crates/font-awesome-as-a-crate)
[INFO] [stderr]     Checking unchecked-index v0.2.2
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking unidecode v0.2.0
[INFO] [stderr]     Checking libflate_lz77 v1.0.0
[INFO] [stderr]    Compiling prometheus v0.10.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking rle-decode-fast v1.0.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling rustwide v0.11.0
[INFO] [stderr]     Checking entities v1.0.1
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking typed-arena v1.7.0
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking bytesize v1.0.0
[INFO] [stderr]     Checking shell-words v1.0.0
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]     Checking route-recognizer v0.1.13
[INFO] [stderr]     Checking humansize v1.1.0
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking path-slash v0.1.3
[INFO] [stderr]     Checking oorandom v11.1.1
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking dtoa-short v0.3.2
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling time v0.2.25
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking unic-ucd-version v0.9.0
[INFO] [stderr]     Checking unic-char-property v0.9.0
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr] error: could not compile `regex-syntax`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex_syntax /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.17/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=32be3be563f85566 -C extra-filename=-32be3be563f85566 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "66638275273b0269d36f01698ca93d8855f3389c22c1fc3dde9799b8e094f9d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66638275273b0269d36f01698ca93d8855f3389c22c1fc3dde9799b8e094f9d6", kill_on_drop: false }`
[INFO] [stdout] 66638275273b0269d36f01698ca93d8855f3389c22c1fc3dde9799b8e094f9d6