[INFO] fetching crate download_caretaker 0.1.3...
[INFO] checking download_caretaker-0.1.3 against master#ad0d4190facd509a5c79dce427bb7deb2824046e for pr-92472
[INFO] extracting crate download_caretaker 0.1.3 into /workspace/builds/worker-30/source
[INFO] validating manifest of crates.io crate download_caretaker 0.1.3 on toolchain ad0d4190facd509a5c79dce427bb7deb2824046e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ad0d4190facd509a5c79dce427bb7deb2824046e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate download_caretaker 0.1.3
[INFO] finished tweaking crates.io crate download_caretaker 0.1.3
[INFO] tweaked toml for crates.io crate download_caretaker 0.1.3 written to /workspace/builds/worker-30/source/Cargo.toml
[INFO] crate crates.io crate download_caretaker 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ad0d4190facd509a5c79dce427bb7deb2824046e" "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-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+ad0d4190facd509a5c79dce427bb7deb2824046e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e3f5bdf4640c41369b8c84d6bdbb4a6faf1f6921b8e67d69af2a0abc992cd8e
[INFO] running `Command { std: "docker" "start" "-a" "8e3f5bdf4640c41369b8c84d6bdbb4a6faf1f6921b8e67d69af2a0abc992cd8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e3f5bdf4640c41369b8c84d6bdbb4a6faf1f6921b8e67d69af2a0abc992cd8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e3f5bdf4640c41369b8c84d6bdbb4a6faf1f6921b8e67d69af2a0abc992cd8e", kill_on_drop: false }`
[INFO] [stdout] 8e3f5bdf4640c41369b8c84d6bdbb4a6faf1f6921b8e67d69af2a0abc992cd8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+ad0d4190facd509a5c79dce427bb7deb2824046e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 664bdebd15996499113bdf552203f277422db6aa64e10b14ae529d1a920ae451
[INFO] running `Command { std: "docker" "start" "-a" "664bdebd15996499113bdf552203f277422db6aa64e10b14ae529d1a920ae451", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.13
[INFO] [stderr]    Compiling syn v1.0.22
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling bindgen v0.53.2
[INFO] [stderr]    Compiling smallvec v1.4.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling once_cell v1.4.0
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking dtoa v0.4.5
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking wild v2.0.3
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking shell-words v0.1.0
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking memchr v2.3.3
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking terminal_size v0.1.12
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking content_inspector v0.2.4
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking encoding v0.2.33
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]    Compiling cc v1.0.53
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling proc-quote-impl v0.3.2
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libgit2-sys v0.12.5+1.0.0
[INFO] [stderr]    Compiling ansi_colours v1.0.1
[INFO] [stderr]     Checking regex v1.3.7
[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,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=39a47edb783c6a43 -C extra-filename=-39a47edb783c6a43 --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" "664bdebd15996499113bdf552203f277422db6aa64e10b14ae529d1a920ae451", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "664bdebd15996499113bdf552203f277422db6aa64e10b14ae529d1a920ae451", kill_on_drop: false }`
[INFO] [stdout] 664bdebd15996499113bdf552203f277422db6aa64e10b14ae529d1a920ae451