[INFO] cloning repository https://github.com/mimblewimble/grin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mimblewimble/grin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmimblewimble%2Fgrin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmimblewimble%2Fgrin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78c9794d30c21d40a24f255c411e04f3eab5d512
[INFO] checking mimblewimble/grin against master#1204400ab8da9830f6f77a5e40e7ad3ea459676a for pr-94295
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmimblewimble%2Fgrin" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mimblewimble/grin on toolchain 1204400ab8da9830f6f77a5e40e7ad3ea459676a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1204400ab8da9830f6f77a5e40e7ad3ea459676a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/.cargo/config
[INFO] started tweaking git repo https://github.com/mimblewimble/grin
[INFO] finished tweaking git repo https://github.com/mimblewimble/grin
[INFO] tweaked toml for git repo https://github.com/mimblewimble/grin written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mimblewimble/grin already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1204400ab8da9830f6f77a5e40e7ad3ea459676a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1204400ab8da9830f6f77a5e40e7ad3ea459676a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8682b6d275f1c6607d7d5fa219f983f12df3b4b45d93ce7822d88f2897babfe2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8682b6d275f1c6607d7d5fa219f983f12df3b4b45d93ce7822d88f2897babfe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8682b6d275f1c6607d7d5fa219f983f12df3b4b45d93ce7822d88f2897babfe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8682b6d275f1c6607d7d5fa219f983f12df3b4b45d93ce7822d88f2897babfe2", kill_on_drop: false }`
[INFO] [stdout] 8682b6d275f1c6607d7d5fa219f983f12df3b4b45d93ce7822d88f2897babfe2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1204400ab8da9830f6f77a5e40e7ad3ea459676a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fab9ca2976f98d739652daf0a5a5884316f8b6799a502faae1c0b86ec20c273
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1fab9ca2976f98d739652daf0a5a5884316f8b6799a502faae1c0b86ec20c273", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking odds v0.2.26
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]     Checking base64 v0.12.1
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling bindgen v0.56.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking siphasher v0.3.3
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking supercow v0.1.0
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking futures-sink v0.3.19
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.19
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling smallvec v1.4.0
[INFO] [stderr]     Checking unicode-xid v0.2.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking xi-unicode v0.3.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling signal-hook v0.3.4
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling ahash v0.6.3
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking arrayvec v0.3.25
[INFO] [stderr]    Compiling liblmdb-sys v0.2.2
[INFO] [stderr]     Checking password-hash v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling clang-sys v1.1.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking crypto-mac v0.11.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking futures-channel v0.3.19
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]     Checking ripemd160 v0.9.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking hmac v0.11.0
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking pbkdf2 v0.8.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking backtrace v0.3.48
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking filetime v0.2.10
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking lmdb-zero v0.4.4
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling grin_secp256k1zkp v0.7.10
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libgit2-sys v0.12.7+1.0.0
[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-1.3.9/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="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="thread_local"' --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=57dee964ef0ba3dd -C extra-filename=-57dee964ef0ba3dd --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/debug/deps/libaho_corasick-9b10e93aab7cbe7a.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-dab0d116dd56435e.rmeta --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-7adb07e7d078c59f.rmeta --extern thread_local=/opt/rustwide/target/debug/deps/libthread_local-7b136cb51b93983e.rmeta --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" "1fab9ca2976f98d739652daf0a5a5884316f8b6799a502faae1c0b86ec20c273", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fab9ca2976f98d739652daf0a5a5884316f8b6799a502faae1c0b86ec20c273", kill_on_drop: false }`
[INFO] [stdout] 1fab9ca2976f98d739652daf0a5a5884316f8b6799a502faae1c0b86ec20c273