[INFO] fetching crate fqcat 0.2.0-alpha...
[INFO] testing fqcat-0.2.0-alpha against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237
[INFO] extracting crate fqcat 0.2.0-alpha into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate fqcat 0.2.0-alpha
[INFO] finished tweaking crates.io crate fqcat 0.2.0-alpha
[INFO] tweaked toml for crates.io crate fqcat 0.2.0-alpha written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fqcat 0.2.0-alpha on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fqcat 0.2.0-alpha already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 220202761c98b420afc7ea179232833604912dd4a0408cd9bd6a48ed3cb4be9b
[INFO] running `Command { std: "docker" "start" "-a" "220202761c98b420afc7ea179232833604912dd4a0408cd9bd6a48ed3cb4be9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "220202761c98b420afc7ea179232833604912dd4a0408cd9bd6a48ed3cb4be9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "220202761c98b420afc7ea179232833604912dd4a0408cd9bd6a48ed3cb4be9b", kill_on_drop: false }`
[INFO] [stdout] 220202761c98b420afc7ea179232833604912dd4a0408cd9bd6a48ed3cb4be9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca4439c3eb29805a0068c7a39fa1393c3450d84ee36b1ddb422a0754e9e64538
[INFO] running `Command { std: "docker" "start" "-a" "ca4439c3eb29805a0068c7a39fa1393c3450d84ee36b1ddb422a0754e9e64538", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling serde v1.0.189
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling bytemuck v1.14.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling jobserver v0.1.27
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling safe_arch v0.7.1
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling futures-sink v0.3.28
[INFO] [stderr]    Compiling feature-probe v0.1.1
[INFO] [stderr]    Compiling regex-syntax v0.8.1
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]    Compiling bv v0.11.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling zstd-safe v7.0.0
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling hashbrown v0.14.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling wide v0.7.12
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling smallvec v1.11.1
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]    Compiling csv-core v0.1.11
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling zstd-sys v2.0.9+zstd.1.5.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling num-complex v0.4.4
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling indexmap v2.0.2
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling clap_lex v0.5.1
[INFO] [stderr]    Compiling rand_distr v0.4.3
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling itertools-num v0.1.3
[INFO] [stderr]    Compiling ordered-float v3.9.2
[INFO] [stderr]    Compiling clap_builder v4.4.6
[INFO] [stderr] error: could not compile `regex-syntax` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/bin/rustc --crate-name regex_syntax --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-syntax-0.8.1/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="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"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("arbitrary", "default", "std", "unicode", "unicode-age", "unicode-bool", "unicode-case", "unicode-gencat", "unicode-perl", "unicode-script", "unicode-segment"))' -C metadata=286ead593c99eb8e -C extra-filename=-874a9240436713b3 --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" "ca4439c3eb29805a0068c7a39fa1393c3450d84ee36b1ddb422a0754e9e64538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca4439c3eb29805a0068c7a39fa1393c3450d84ee36b1ddb422a0754e9e64538", kill_on_drop: false }`
[INFO] [stdout] ca4439c3eb29805a0068c7a39fa1393c3450d84ee36b1ddb422a0754e9e64538