[INFO] fetching crate xivar 0.4.0...
[INFO] testing xivar-0.4.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate xivar 0.4.0 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate xivar 0.4.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xivar 0.4.0
[INFO] finished tweaking crates.io crate xivar 0.4.0
[INFO] tweaked toml for crates.io crate xivar 0.4.0 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate crates.io crate xivar 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_qs v0.7.0
[INFO] [stderr]   Downloaded skim v0.9.3
[INFO] [stderr]   Downloaded timer v0.2.0
[INFO] [stderr]   Downloaded open v1.4.0
[INFO] [stderr]   Downloaded lopdf v0.26.0
[INFO] [stderr]   Downloaded pom v3.2.0
[INFO] [stderr]   Downloaded tuikit v0.4.2
[INFO] [stderr]   Downloaded dirs-sys-next v0.1.1
[INFO] [stderr]   Downloaded sha2 v0.9.2
[INFO] [stderr]   Downloaded tracing-attributes v0.1.11
[INFO] [stderr]   Downloaded isahc v0.9.13
[INFO] [stderr]   Downloaded sluice v0.5.3
[INFO] [stderr]   Downloaded ghash v0.3.0
[INFO] [stderr]   Downloaded fuzzy-matcher v0.3.7
[INFO] [stderr]   Downloaded standback v0.2.13
[INFO] [stderr]   Downloaded lexical-core v0.7.4
[INFO] [stderr]   Downloaded http-client v6.2.0
[INFO] [stderr]   Downloaded time v0.2.23
[INFO] [stderr]   Downloaded cookie v0.14.3
[INFO] [stderr]   Downloaded polyval v0.4.2
[INFO] [stderr]   Downloaded async-io v1.3.0
[INFO] [stderr]   Downloaded data-encoding v2.3.1
[INFO] [stderr]   Downloaded surf v2.1.0
[INFO] [stderr]   Downloaded roxmltree v0.13.0
[INFO] [stderr]   Downloaded defer-drop v1.0.1
[INFO] [stderr]   Downloaded http-types v2.8.0
[INFO] [stderr]   Downloaded vte v0.3.3
[INFO] [stderr]   Downloaded libnghttp2-sys v0.1.5+1.42.0
[INFO] [stderr]   Downloaded curl-sys v0.4.38+curl-7.73.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f59b792b067395f55ed081d2a161cf2bf7166c7ea9c60414092368463fd2a75
[INFO] running `Command { std: "docker" "start" "-a" "6f59b792b067395f55ed081d2a161cf2bf7166c7ea9c60414092368463fd2a75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f59b792b067395f55ed081d2a161cf2bf7166c7ea9c60414092368463fd2a75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f59b792b067395f55ed081d2a161cf2bf7166c7ea9c60414092368463fd2a75", kill_on_drop: false }`
[INFO] [stdout] 6f59b792b067395f55ed081d2a161cf2bf7166c7ea9c60414092368463fd2a75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5ff29ac27c403d757247cb41c06d8c569c9b4d3d6d053f0c764a300148143d5
[INFO] running `Command { std: "docker" "start" "-a" "a5ff29ac27c403d757247cb41c06d8c569c9b4d3d6d053f0c764a300148143d5", 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]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling cc v1.0.65
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling futures-io v0.3.8
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling subtle v2.3.0
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling fastrand v1.4.0
[INFO] [stderr]    Compiling pin-project-lite v0.1.11
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling futures-sink v0.3.8
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling vec-arena v1.0.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.0
[INFO] [stderr]    Compiling encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling curl v0.4.34
[INFO] [stderr]    Compiling anyhow v1.0.35
[INFO] [stderr]    Compiling cpuid-bool v0.1.2
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling data-encoding v2.3.1
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling isahc v0.9.13
[INFO] [stderr]    Compiling http-types v2.8.0
[INFO] [stderr]    Compiling serde v0.8.23
[INFO] [stderr]    Compiling infer v0.2.3
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling encoding_rs v0.8.26
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.3
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling utf8parse v0.1.1
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling mime v0.3.16
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling beef v0.4.4
[INFO] [stderr]    Compiling os_str_bytes v2.4.0
[INFO] [stderr]    Compiling dtoa v0.4.6
[INFO] [stderr]    Compiling zeroize v0.9.3
[INFO] [stderr]    Compiling xmlparser v0.13.3
[INFO] [stderr]    Compiling rust-ini v0.13.0
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling pom v3.2.0
[INFO] [stderr]    Compiling number_prefix v0.3.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling open v1.4.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling form_urlencoded v1.0.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling tinyvec v1.1.0
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling textwrap v0.12.1
[INFO] [stderr]    Compiling encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-japanese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-korean v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling http v0.2.1
[INFO] [stderr]    Compiling vte v0.3.3
[INFO] [stderr]    Compiling yaml-rust v0.4.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling standback v0.2.13
[INFO] [stderr]    Compiling time v0.2.23
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling cookie v0.14.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling fuzzy-matcher v0.3.7
[INFO] [stderr]    Compiling spinning_top v0.2.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling async-channel v1.5.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling sluice v0.5.3
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling roxmltree v0.13.0
[INFO] [stderr]    Compiling encoding v0.2.33
[INFO] [stderr]    Compiling flume v0.9.2
[INFO] [stderr]    Compiling futures-lite v1.11.2
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[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-0.6.21/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=e6770d11f113e9f6 -C extra-filename=-e6770d11f113e9f6 --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" "a5ff29ac27c403d757247cb41c06d8c569c9b4d3d6d053f0c764a300148143d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5ff29ac27c403d757247cb41c06d8c569c9b4d3d6d053f0c764a300148143d5", kill_on_drop: false }`
[INFO] [stdout] a5ff29ac27c403d757247cb41c06d8c569c9b4d3d6d053f0c764a300148143d5