[INFO] cloning repository https://github.com/mbhall88/drprg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mbhall88/drprg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmbhall88%2Fdrprg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmbhall88%2Fdrprg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 26778cd8f12fbbc5194d20dba412f6dfcb1e1333
[INFO] testing mbhall88/drprg against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmbhall88%2Fdrprg" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mbhall88/drprg on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mbhall88/drprg
[INFO] finished tweaking git repo https://github.com/mbhall88/drprg
[INFO] tweaked toml for git repo https://github.com/mbhall88/drprg written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/mbhall88/drprg already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23ac5f32f2b01a3bffe88fbce0800d6ea27236d39217114b80a5ccea3324969a
[INFO] running `Command { std: "docker" "start" "-a" "23ac5f32f2b01a3bffe88fbce0800d6ea27236d39217114b80a5ccea3324969a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23ac5f32f2b01a3bffe88fbce0800d6ea27236d39217114b80a5ccea3324969a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23ac5f32f2b01a3bffe88fbce0800d6ea27236d39217114b80a5ccea3324969a", kill_on_drop: false }`
[INFO] [stdout] 23ac5f32f2b01a3bffe88fbce0800d6ea27236d39217114b80a5ccea3324969a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f5c388824b008c81d77722d5e91c038dd5da5febfa3befaafcd498e12e1c44f
[INFO] running `Command { std: "docker" "start" "-a" "1f5c388824b008c81d77722d5e91c038dd5da5febfa3befaafcd498e12e1c44f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling feature-probe v0.1.1
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling ndarray v0.14.0
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling array-macro v1.0.5
[INFO] [stderr]    Compiling bio v0.33.0
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling custom_derive v0.1.7
[INFO] [stderr]    Compiling strum v0.20.0
[INFO] [stderr]    Compiling linear-map v1.2.0
[INFO] [stderr]    Compiling ieee754 v0.2.6
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling bytecount v0.6.2
[INFO] [stderr]    Compiling triple_accel v0.3.4
[INFO] [stderr]    Compiling fs_extra v1.2.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling fs-utils v1.1.4
[INFO] [stderr]    Compiling matrixmultiply v0.2.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tinyvec v1.2.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling generic-array v0.13.3
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling bv v0.11.1
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling unicode-normalization v0.1.17
[INFO] [stderr]    Compiling jobserver v0.1.22
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling regex v1.4.5
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling derefable v0.1.0
[INFO] [stderr]    Compiling openssl-src v111.15.0+1.1.1k
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling ordered-float v1.1.1
[INFO] [stderr]    Compiling itertools-num v0.1.3
[INFO] [stderr]    Compiling float-cmp v0.8.0
[INFO] [stderr]    Compiling url v2.2.1
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]    Compiling enum-map-derive v0.4.6
[INFO] [stderr]    Compiling getset v0.0.9
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling alga v0.9.3
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]    Compiling bzip2-sys v0.1.10+1.0.8
[INFO] [stderr]    Compiling lzma-sys v0.1.17
[INFO] [stderr]    Compiling curl-sys v0.4.42+curl-7.76.0
[INFO] [stderr]    Compiling hts-sys v1.11.1-fix1
[INFO] [stderr]    Compiling env_logger v0.8.3
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr] error: could not compile `regex`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-1.4.5/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="aho-corasick"' --cfg 'feature="default"' --cfg 'feature="memchr"' --cfg 'feature="perf"' --cfg 'feature="perf-cache"' --cfg 'feature="perf-dfa"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --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"' -C metadata=8514ce0c67251c93 -C extra-filename=-8514ce0c67251c93 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/debug/deps/libaho_corasick-d27d7eb66b249b58.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-e16668cc5a7251cd.rmeta --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-224a1149e9ba4fa9.rmeta --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" "1f5c388824b008c81d77722d5e91c038dd5da5febfa3befaafcd498e12e1c44f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f5c388824b008c81d77722d5e91c038dd5da5febfa3befaafcd498e12e1c44f", kill_on_drop: false }`
[INFO] [stdout] 1f5c388824b008c81d77722d5e91c038dd5da5febfa3befaafcd498e12e1c44f