[INFO] fetching crate mdbook-puml 0.1.1...
[INFO] testing mdbook-puml-0.1.1 against beta-2021-11-30 for beta-1.58-1
[INFO] extracting crate mdbook-puml 0.1.1 into /workspace/builds/worker-44/source
[INFO] validating manifest of crates.io crate mdbook-puml 0.1.1 on toolchain beta-2021-11-30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-11-30" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdbook-puml 0.1.1
[INFO] finished tweaking crates.io crate mdbook-puml 0.1.1
[INFO] tweaked toml for crates.io crate mdbook-puml 0.1.1 written to /workspace/builds/worker-44/source/Cargo.toml
[INFO] crate crates.io crate mdbook-puml 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-11-30" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strum v0.16.0
[INFO] [stderr]   Downloaded strum_macros v0.16.0
[INFO] [stderr]   Downloaded pulldown-cmark-to-cmark v4.0.1
[INFO] [stderr]   Downloaded elasticlunr-rs v2.3.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-11-30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 895586b7f0783a81e7930a0daac25bfa753a57d3f4a24bbe190ee13aa97ce274
[INFO] running `Command { std: "docker" "start" "-a" "895586b7f0783a81e7930a0daac25bfa753a57d3f4a24bbe190ee13aa97ce274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "895586b7f0783a81e7930a0daac25bfa753a57d3f4a24bbe190ee13aa97ce274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "895586b7f0783a81e7930a0daac25bfa753a57d3f4a24bbe190ee13aa97ce274", kill_on_drop: false }`
[INFO] [stdout] 895586b7f0783a81e7930a0daac25bfa753a57d3f4a24bbe190ee13aa97ce274
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-11-30" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9713d037b75336d31d33ba94a8d25a41902cd688192c648633b7444909304b38
[INFO] running `Command { std: "docker" "start" "-a" "9713d037b75336d31d33ba94a8d25a41902cd688192c648633b7444909304b38", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling proc-macro2 v1.0.13
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.22
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling smallvec v1.4.0
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling utf-8 v0.7.5
[INFO] [stderr]    Compiling gimli v0.21.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling object v0.19.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling modifier v0.1.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling pulldown-cmark v0.6.1
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling sequence_trie v0.3.6
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling pulldown-cmark v0.7.1
[INFO] [stderr]    Compiling strum v0.16.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling is-match v0.1.0
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling open v1.4.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling unicase v1.4.2
[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 phf_shared v0.8.0
[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,artifacts --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=c0a6bfa77b2c06f1 -C extra-filename=-c0a6bfa77b2c06f1 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=warn` (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" "9713d037b75336d31d33ba94a8d25a41902cd688192c648633b7444909304b38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9713d037b75336d31d33ba94a8d25a41902cd688192c648633b7444909304b38", kill_on_drop: false }`
[INFO] [stdout] 9713d037b75336d31d33ba94a8d25a41902cd688192c648633b7444909304b38