[INFO] cloning repository https://github.com/kacerchen/zksnark_zokrates
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kacerchen/zksnark_zokrates" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkacerchen%2Fzksnark_zokrates", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkacerchen%2Fzksnark_zokrates'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 721a21f4f93fd23022d7a20d267f0a70c2ee1f67
[INFO] checking kacerchen/zksnark_zokrates against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkacerchen%2Fzksnark_zokrates" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/kacerchen/zksnark_zokrates on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kacerchen/zksnark_zokrates
[INFO] finished tweaking git repo https://github.com/kacerchen/zksnark_zokrates
[INFO] tweaked toml for git repo https://github.com/kacerchen/zksnark_zokrates written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/kacerchen/zksnark_zokrates already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itertools v0.7.11
[INFO] [stderr]   Downloaded tiny-keccak v1.5.0
[INFO] [stderr]   Downloaded serde_derive v1.0.94
[INFO] [stderr]   Downloaded utf8-ranges v1.0.3
[INFO] [stderr]   Downloaded wasmi v0.4.5
[INFO] [stderr]   Downloaded num-bigint v0.1.44
[INFO] [stderr]   Downloaded bytecount v0.4.0
[INFO] [stderr]   Downloaded environment v0.1.1
[INFO] [stderr]   Downloaded cmake v0.1.40
[INFO] [stderr]   Downloaded h2 v0.1.25
[INFO] [stderr]   Downloaded aho-corasick v0.7.4
[INFO] [stderr]   Downloaded openssl v0.10.23
[INFO] [stderr]   Downloaded ucd-trie v0.1.1
[INFO] [stderr]   Downloaded rayon-core v1.5.0
[INFO] [stderr]   Downloaded cargo_metadata v0.6.4
[INFO] [stderr]   Downloaded mockito v0.17.1
[INFO] [stderr]   Downloaded rayon v1.1.0
[INFO] [stderr]   Downloaded syn v0.14.9
[INFO] [stderr]   Downloaded from-pest v0.3.1
[INFO] [stderr]   Downloaded rand_chacha v0.2.0
[INFO] [stderr]   Downloaded miniz_oxide v0.2.2
[INFO] [stderr]   Downloaded error-chain v0.11.0
[INFO] [stderr]   Downloaded wasmi-validation v0.1.0
[INFO] [stderr]   Downloaded skeptic v0.13.4
[INFO] [stderr]   Downloaded regex v1.1.9
[INFO] [stderr]   Downloaded openssl-sys v0.9.47
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[INFO] [stderr]   Downloaded crossbeam v0.7.1
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[INFO] [stderr]   Downloaded pest-ast v0.3.3
[INFO] [stderr]   Downloaded git2 v0.8.0
[INFO] [stderr]   Downloaded libgit2-sys v0.7.11
[INFO] [stderr]   Downloaded libssh2-sys v0.2.11
[INFO] [stderr]   Downloaded pest v2.1.1
[INFO] [stderr]   Downloaded bstr v0.2.1
[INFO] [stderr]   Downloaded single v1.0.0
[INFO] [stderr]   Downloaded csv v1.1.1
[INFO] [stderr]   Downloaded pest_meta v2.1.1
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[INFO] [stderr]   Downloaded regex-automata v0.1.7
[INFO] [stderr]   Downloaded parity-wasm v0.35.7
[INFO] [stderr]   Downloaded reduce v0.1.2
[INFO] [stderr]   Downloaded num-bigint v0.2.2
[INFO] [stderr]   Downloaded curl-sys v0.4.20
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[INFO] [stderr]   Downloaded blake2-rfc_bellman_edition v0.0.1
[INFO] [stderr]   Downloaded ff_derive_ce v0.5.0
[INFO] [stderr]   Downloaded libc v0.2.59
[INFO] [stderr]   Downloaded pest_generator v2.1.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0099453bb18b9acf5924342e79f529673285f75efeaa279f15e8f5b4b6d9252e
[INFO] running `Command { std: "docker" "start" "-a" "0099453bb18b9acf5924342e79f529673285f75efeaa279f15e8f5b4b6d9252e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0099453bb18b9acf5924342e79f529673285f75efeaa279f15e8f5b4b6d9252e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0099453bb18b9acf5924342e79f529673285f75efeaa279f15e8f5b4b6d9252e", kill_on_drop: false }`
[INFO] [stdout] 0099453bb18b9acf5924342e79f529673285f75efeaa279f15e8f5b4b6d9252e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1571a2689bce3d07454c75c9ca0ba514906d32dfc214f1ccd5e5b50228a660ac
[INFO] running `Command { std: "docker" "start" "-a" "1571a2689bce3d07454c75c9ca0ba514906d32dfc214f1ccd5e5b50228a660ac", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.59
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking futures v0.1.28
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.15
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]    Compiling ucd-trie v0.1.1
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking constant_time_eq v0.1.3
[INFO] [stderr]     Checking bit-vec v0.4.4
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling openssl v0.10.23
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling fs_extra v1.1.0
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]    Compiling zokrates_core v0.3.13 (/opt/rustwide/workdir/zokrates_core)
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]     Checking rgb v0.8.13
[INFO] [stderr]    Compiling same-file v1.0.4
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling encoding_rs v0.8.17
[INFO] [stderr]     Checking reduce v0.1.2
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]     Checking dtoa v0.4.4
[INFO] [stderr]     Checking environment v0.1.1
[INFO] [stderr]     Checking zokrates_fs_resolver v0.4.1 (/opt/rustwide/workdir/zokrates_fs_resolver)
[INFO] [stderr]     Checking difference v1.0.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.8
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking regex-automata v0.1.7
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[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 num-iter v0.1.39
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr] error: could not compile `rustc-serialize`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name rustc_serialize /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.24/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=6f34013fb813232d -C extra-filename=-6f34013fb813232d --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" "1571a2689bce3d07454c75c9ca0ba514906d32dfc214f1ccd5e5b50228a660ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1571a2689bce3d07454c75c9ca0ba514906d32dfc214f1ccd5e5b50228a660ac", kill_on_drop: false }`
[INFO] [stdout] 1571a2689bce3d07454c75c9ca0ba514906d32dfc214f1ccd5e5b50228a660ac