[INFO] fetching crate sheldon 0.6.6...
[INFO] testing sheldon-0.6.6 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate sheldon 0.6.6 into /workspace/builds/worker-76/source
[INFO] validating manifest of crates.io crate sheldon 0.6.6 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sheldon 0.6.6
[INFO] finished tweaking crates.io crate sheldon 0.6.6
[INFO] tweaked toml for crates.io crate sheldon 0.6.6 written to /workspace/builds/worker-76/source/Cargo.toml
[INFO] crate crates.io crate sheldon 0.6.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0de9af0e9fc12a1ca51c29fe11489c903344bb079c2bcec6691573f8e1f30652
[INFO] running `Command { std: "docker" "start" "-a" "0de9af0e9fc12a1ca51c29fe11489c903344bb079c2bcec6691573f8e1f30652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0de9af0e9fc12a1ca51c29fe11489c903344bb079c2bcec6691573f8e1f30652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0de9af0e9fc12a1ca51c29fe11489c903344bb079c2bcec6691573f8e1f30652", kill_on_drop: false }`
[INFO] [stdout] 0de9af0e9fc12a1ca51c29fe11489c903344bb079c2bcec6691573f8e1f30652
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c49ab3786aea9bc2ec0b4e33b3bb46a6c17bbf38da6fb59b9e3ed79c3761d82
[INFO] running `Command { std: "docker" "start" "-a" "1c49ab3786aea9bc2ec0b4e33b3bb46a6c17bbf38da6fb59b9e3ed79c3761d82", 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.116
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.6
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling anyhow v1.0.53
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling serde_json v1.0.78
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling curl v0.4.42
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling textwrap v0.14.2
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling quick-error v2.0.1
[INFO] [stderr]    Compiling casual v0.2.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling thread_local v1.1.4
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling os_str_bytes v6.0.0
[INFO] [stderr]    Compiling combine v4.6.3
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling which v4.2.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling sheldon v0.6.6 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling clap_derive v3.0.12
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling libssh2-sys v0.2.23
[INFO] [stderr]    Compiling curl-sys v0.4.52+curl-7.81.0
[INFO] [stderr]    Compiling libgit2-sys v0.12.26+1.3.0
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling globset v0.4.8
[INFO] [stderr]    Compiling regex-macro v0.2.0
[INFO] [stderr]    Compiling ignore v0.4.18
[INFO] [stderr] error: could not compile `regex`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-1.5.4/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="aho-corasick"' --cfg 'feature="default"' --cfg 'feature="memchr"' --cfg 'feature="perf"' --cfg 'feature="perf-cache"' --cfg 'feature="perf-dfa"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="std"' --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=4efcc36bab2a8580 -C extra-filename=-4efcc36bab2a8580 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/debug/deps/libaho_corasick-053f5b9157af7a76.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-2dcc6205f23bafab.rmeta --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-fd0c3ba7c22fa1f4.rmeta --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" "1c49ab3786aea9bc2ec0b4e33b3bb46a6c17bbf38da6fb59b9e3ed79c3761d82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c49ab3786aea9bc2ec0b4e33b3bb46a6c17bbf38da6fb59b9e3ed79c3761d82", kill_on_drop: false }`
[INFO] [stdout] 1c49ab3786aea9bc2ec0b4e33b3bb46a6c17bbf38da6fb59b9e3ed79c3761d82