[INFO] fetching crate cbor-tag-index 0.2.1...
[INFO] checking cbor-tag-index-0.2.1 against master#2ad4eb207b369017f5140918b5e4b0d3650b46b0 for pr-95611
[INFO] extracting crate cbor-tag-index 0.2.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate cbor-tag-index 0.2.1 on toolchain 2ad4eb207b369017f5140918b5e4b0d3650b46b0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad4eb207b369017f5140918b5e4b0d3650b46b0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cbor-tag-index 0.2.1
[INFO] finished tweaking crates.io crate cbor-tag-index 0.2.1
[INFO] tweaked toml for crates.io crate cbor-tag-index 0.2.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate cbor-tag-index 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad4eb207b369017f5140918b5e4b0d3650b46b0" "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 multihash v0.14.0
[INFO] [stderr]   Downloaded multibase v0.9.1
[INFO] [stderr]   Downloaded libipld-cbor v0.12.1
[INFO] [stderr]   Downloaded libipld-cbor-derive v0.12.0
[INFO] [stderr]   Downloaded libipld-macro v0.12.0
[INFO] [stderr]   Downloaded libipld-core v0.12.0
[INFO] [stderr]   Downloaded zstd-safe v4.1.0+zstd.1.5.0
[INFO] [stderr]   Downloaded zstd v0.8.3+zstd.1.5.0
[INFO] [stderr]   Downloaded libipld-json v0.12.0
[INFO] [stderr]   Downloaded cid v0.7.0
[INFO] [stderr]   Downloaded zstd-sys v1.6.0+zstd.1.5.0
[INFO] [stderr]   Downloaded libipld-pb v0.12.0
[INFO] [stderr]   Downloaded multihash-derive v0.7.2
[INFO] [stderr]   Downloaded libipld v0.12.0
[INFO] [stderr]   Downloaded sorted-iter v0.1.7
[INFO] [stderr]   Downloaded vec-collections v0.3.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+2ad4eb207b369017f5140918b5e4b0d3650b46b0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a29d66ecb017f78eb0fb70bc39ae6766bf1c8898ae25bfb3b6c9049f1db3dff
[INFO] running `Command { std: "docker" "start" "-a" "8a29d66ecb017f78eb0fb70bc39ae6766bf1c8898ae25bfb3b6c9049f1db3dff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a29d66ecb017f78eb0fb70bc39ae6766bf1c8898ae25bfb3b6c9049f1db3dff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a29d66ecb017f78eb0fb70bc39ae6766bf1c8898ae25bfb3b6c9049f1db3dff", kill_on_drop: false }`
[INFO] [stdout] 8a29d66ecb017f78eb0fb70bc39ae6766bf1c8898ae25bfb3b6c9049f1db3dff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+2ad4eb207b369017f5140918b5e4b0d3650b46b0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 475ba48953d65b943bec26b669252f7f163c4516df41ca43cbd719584d29103c
[INFO] running `Command { std: "docker" "start" "-a" "475ba48953d65b943bec26b669252f7f163c4516df41ca43cbd719584d29103c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking cpufeatures v0.1.5
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking unsigned-varint v0.7.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking base-x v0.2.8
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling zstd-safe v4.1.0+zstd.1.5.0
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking plotters-backend v0.3.2
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]     Checking sorted-iter v0.1.7
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking plotters-svg v0.3.1
[INFO] [stderr]    Compiling heck v0.3.3
[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-0.6.25/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=cb7710863b906da5 -C extra-filename=-cb7710863b906da5 --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] running `Command { std: "docker" "inspect" "475ba48953d65b943bec26b669252f7f163c4516df41ca43cbd719584d29103c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "475ba48953d65b943bec26b669252f7f163c4516df41ca43cbd719584d29103c", kill_on_drop: false }`
[INFO] [stdout] 475ba48953d65b943bec26b669252f7f163c4516df41ca43cbd719584d29103c