[INFO] fetching crate lowpass-filter 0.3.2...
[INFO] testing lowpass-filter-0.3.2 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate lowpass-filter 0.3.2 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate lowpass-filter 0.3.2 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lowpass-filter 0.3.2
[INFO] finished tweaking crates.io crate lowpass-filter 0.3.2
[INFO] tweaked toml for crates.io crate lowpass-filter 0.3.2 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate lowpass-filter 0.3.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ca510cf7040dd78d33dace4ff2ee5664f0e4ba7dde08b7ac7d89c2b321af5c2
[INFO] running `Command { std: "docker" "start" "-a" "8ca510cf7040dd78d33dace4ff2ee5664f0e4ba7dde08b7ac7d89c2b321af5c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ca510cf7040dd78d33dace4ff2ee5664f0e4ba7dde08b7ac7d89c2b321af5c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ca510cf7040dd78d33dace4ff2ee5664f0e4ba7dde08b7ac7d89c2b321af5c2", kill_on_drop: false }`
[INFO] [stdout] 8ca510cf7040dd78d33dace4ff2ee5664f0e4ba7dde08b7ac7d89c2b321af5c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fe637b1942f3a6147298f3527ab7d0b834e3cd2b45e99e5b996652edc6b82ea
[INFO] running `Command { std: "docker" "start" "-a" "1fe637b1942f3a6147298f3527ab7d0b834e3cd2b45e99e5b996652edc6b82ea", 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 lowpass-filter v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "1fe637b1942f3a6147298f3527ab7d0b834e3cd2b45e99e5b996652edc6b82ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fe637b1942f3a6147298f3527ab7d0b834e3cd2b45e99e5b996652edc6b82ea", kill_on_drop: false }`
[INFO] [stdout] 1fe637b1942f3a6147298f3527ab7d0b834e3cd2b45e99e5b996652edc6b82ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d0bf7bb6124d1103b4aea7504bd1e1d2f5487743223e0351d9879cdf14ae34b
[INFO] running `Command { std: "docker" "start" "-a" "5d0bf7bb6124d1103b4aea7504bd1e1d2f5487743223e0351d9879cdf14ae34b", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling bindgen v0.56.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling weezl v0.1.5
[INFO] [stderr]    Compiling bytemuck v1.7.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling strength_reduce v0.2.3
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling float-ord v0.2.0
[INFO] [stderr]    Compiling cpal v0.13.4
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]    Compiling ttf-parser v0.12.3
[INFO] [stderr]    Compiling array-init v2.0.0
[INFO] [stderr]    Compiling riff v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling clang-sys v1.3.0
[INFO] [stderr]    Compiling libloading v0.7.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling deflate v0.9.1
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling ringbuffer v0.8.3
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling wav v1.0.0
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling gif v0.11.2
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling x11-dl v2.19.1
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling wayland-scanner v0.28.6
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling png v0.17.1
[INFO] [stderr]    Compiling freetype-sys v0.13.1
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[INFO] [stderr]    Compiling minifb v0.19.3
[INFO] [stderr]    Compiling biquad v0.4.1
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling transpose v0.2.1
[INFO] [stderr]    Compiling primal-check v0.3.1
[INFO] [stderr]    Compiling rustfft v6.0.1
[INFO] [stderr]    Compiling nix v0.20.2
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling slice-deque v0.3.0
[INFO] [stderr]    Compiling pathfinder_simd v0.5.1
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling rand_core v0.6.3
[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 --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --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=23a3f353ac89bec3 -C extra-filename=-23a3f353ac89bec3 --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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5d0bf7bb6124d1103b4aea7504bd1e1d2f5487743223e0351d9879cdf14ae34b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d0bf7bb6124d1103b4aea7504bd1e1d2f5487743223e0351d9879cdf14ae34b", kill_on_drop: false }`
[INFO] [stdout] 5d0bf7bb6124d1103b4aea7504bd1e1d2f5487743223e0351d9879cdf14ae34b