[INFO] fetching crate mdbook-readme 0.0.4...
[INFO] documenting mdbook-readme-0.0.4 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate mdbook-readme 0.0.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mdbook-readme 0.0.4 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdbook-readme 0.0.4
[INFO] finished tweaking crates.io crate mdbook-readme 0.0.4
[INFO] tweaked toml for crates.io crate mdbook-readme 0.0.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36a32dfc06584f333f4e8b4981e28d499d741e8d1bd9e14955407a88898810c5
[INFO] running `Command { std: "docker" "start" "-a" "36a32dfc06584f333f4e8b4981e28d499d741e8d1bd9e14955407a88898810c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36a32dfc06584f333f4e8b4981e28d499d741e8d1bd9e14955407a88898810c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36a32dfc06584f333f4e8b4981e28d499d741e8d1bd9e14955407a88898810c5", kill_on_drop: false }`
[INFO] [stdout] 36a32dfc06584f333f4e8b4981e28d499d741e8d1bd9e14955407a88898810c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a82a39501cee4d3698ec3c9d60104d6dc1e283fa9aa9d501287b00ecb4b0043
[INFO] running `Command { std: "docker" "start" "-a" "4a82a39501cee4d3698ec3c9d60104d6dc1e283fa9aa9d501287b00ecb4b0043", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]    Compiling httparse v1.7.1
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking os_str_bytes v6.1.0
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling pulldown-cmark v0.9.1
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking strum v0.21.0
[INFO] [stderr]     Checking shlex v1.1.0
[INFO] [stderr]     Checking topological-sort v0.1.0
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking tracing-core v0.1.26
[INFO] [stderr]     Checking gitignore v1.0.7
[INFO] [stderr]     Checking pest v2.1.3
[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 --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.26/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -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=6ecb43c4cd01e725 -C extra-filename=-6ecb43c4cd01e725 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `pest`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name pest /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pest-2.1.3/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=bd314b53b30bd25c -C extra-filename=-bd314b53b30bd25c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ucd_trie=/opt/rustwide/target/debug/deps/libucd_trie-5dc5f79b3b9b92fa.rmeta --cap-lints allow` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not compile `typenum`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_main --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/typenum-1.15.0/build/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=3b8870aae419525d -C extra-filename=-3b8870aae419525d --out-dir /opt/rustwide/target/debug/build/typenum-3b8870aae419525d -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "4a82a39501cee4d3698ec3c9d60104d6dc1e283fa9aa9d501287b00ecb4b0043", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a82a39501cee4d3698ec3c9d60104d6dc1e283fa9aa9d501287b00ecb4b0043", kill_on_drop: false }`
[INFO] [stdout] 4a82a39501cee4d3698ec3c9d60104d6dc1e283fa9aa9d501287b00ecb4b0043