[INFO] cloning repository https://github.com/TwistingTwists/rate_limiter_aimd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TwistingTwists/rate_limiter_aimd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTwistingTwists%2Frate_limiter_aimd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTwistingTwists%2Frate_limiter_aimd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a703a244e948f39dc431675d3cd07b91c653807
[INFO] testing TwistingTwists/rate_limiter_aimd against 1.90.0 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTwistingTwists%2Frate_limiter_aimd" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/TwistingTwists/rate_limiter_aimd
[INFO] finished tweaking git repo https://github.com/TwistingTwists/rate_limiter_aimd
[INFO] tweaked toml for git repo https://github.com/TwistingTwists/rate_limiter_aimd written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/TwistingTwists/rate_limiter_aimd on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/TwistingTwists/rate_limiter_aimd 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded snafu-derive v0.8.5
[INFO] [stderr]   Downloaded tower-test v0.4.0
[INFO] [stderr]   Downloaded sketches-ddsketch v0.3.0
[INFO] [stderr]   Downloaded openssl-sys v0.9.108
[INFO] [stderr]   Downloaded metrics-tracing-context v0.17.0
[INFO] [stderr]   Downloaded quanta v0.12.5
[INFO] [stderr]   Downloaded bon-macros v3.6.3
[INFO] [stderr]   Downloaded bon v3.6.3
[INFO] [stderr]   Downloaded snafu v0.8.5
[INFO] [stderr]   Downloaded hyper-util v0.1.12
[INFO] [stderr]   Downloaded tower-http v0.6.4
[INFO] [stderr]   Downloaded h2 v0.4.10
[INFO] [stderr]   Downloaded webpki-roots v1.0.0
[INFO] [stderr]   Downloaded async-compression v0.4.23
[INFO] [stderr]   Downloaded metrics-util v0.18.0
[INFO] [stderr]   Downloaded rustls v0.23.27
[INFO] [stderr]   Downloaded hyper-rustls v0.27.6
[INFO] [stderr]   Downloaded metrics v0.24.2
[INFO] [stderr]   Downloaded quinn-udp v0.5.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac96cdd0c4a03f0447b3ba4d42dc6a7fdedd0537477277f798e2c08db5ea6e05
[INFO] running `Command { std: "docker" "start" "-a" "ac96cdd0c4a03f0447b3ba4d42dc6a7fdedd0537477277f798e2c08db5ea6e05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac96cdd0c4a03f0447b3ba4d42dc6a7fdedd0537477277f798e2c08db5ea6e05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac96cdd0c4a03f0447b3ba4d42dc6a7fdedd0537477277f798e2c08db5ea6e05", kill_on_drop: false }`
[INFO] [stdout] ac96cdd0c4a03f0447b3ba4d42dc6a7fdedd0537477277f798e2c08db5ea6e05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c303ccc0163d542a9c239f590cf0b5ffbd4f67e4a573e578a7f8c3bc81268392
[INFO] running `Command { std: "docker" "start" "-a" "c303ccc0163d542a9c239f590cf0b5ffbd4f67e4a573e578a7f8c3bc81268392", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling hashbrown v0.15.3
[INFO] [stderr]    Compiling rustls-pki-types v1.12.0
[INFO] [stderr]    Compiling openssl v0.10.72
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling miniz_oxide v0.8.8
[INFO] [stderr]    Compiling rustls v0.23.27
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling rustversion v1.0.21
[INFO] [stderr]    Compiling prettyplease v0.2.32
[INFO] [stderr]    Compiling cc v1.2.24
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling brotli-decompressor v5.0.0
[INFO] [stderr]    Compiling raw-cpuid v11.5.0
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling nibble_vec v0.1.0
[INFO] [stderr]    Compiling gimli v0.31.1
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling deranged v0.4.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling radix_trie v0.2.1
[INFO] [stderr]    Compiling webpki-roots v1.0.0
[INFO] [stderr]    Compiling ordered-float v4.6.0
[INFO] [stderr]    Compiling flate2 v1.1.1
[INFO] [stderr]    Compiling metrics v0.24.2
[INFO] [stderr]    Compiling time-core v0.1.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.24
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling sketches-ddsketch v0.3.0
[INFO] [stderr]    Compiling indexmap v2.9.0
[INFO] [stderr]    Compiling webpki-roots v0.26.11
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rustls-pemfile v2.2.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling lockfree-object-pool v0.1.6
[INFO] [stderr]    Compiling time v0.3.41
[INFO] [stderr]    Compiling ordered-float v5.0.0
[INFO] [stderr]    Compiling brotli v8.0.1
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling openssl-sys v0.9.108
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling zstd-sys v2.0.15+zstd.1.5.7
[INFO] [stderr]    Compiling quanta v0.12.5
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling metrics-util v0.18.0
[INFO] [stderr]    Compiling addr2line v0.24.2
[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/1.90.0-x86_64-unknown-linux-gnu/bin/rustc --crate-name regex_syntax --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-syntax-0.6.29/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"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("default", "unicode", "unicode-age", "unicode-bool", "unicode-case", "unicode-gencat", "unicode-perl", "unicode-script", "unicode-segment"))' -C metadata=79745f48a4f563e1 -C extra-filename=-a2f918f6bbb309d6 --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] running `Command { std: "docker" "inspect" "c303ccc0163d542a9c239f590cf0b5ffbd4f67e4a573e578a7f8c3bc81268392", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c303ccc0163d542a9c239f590cf0b5ffbd4f67e4a573e578a7f8c3bc81268392", kill_on_drop: false }`
[INFO] [stdout] c303ccc0163d542a9c239f590cf0b5ffbd4f67e4a573e578a7f8c3bc81268392