[INFO] cloning repository https://github.com/paritytech/parity-bridge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paritytech/parity-bridge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparitytech%2Fparity-bridge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparitytech%2Fparity-bridge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f42917999d05858e9180a311b8326c777c051b3
[INFO] testing paritytech/parity-bridge against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparitytech%2Fparity-bridge" "/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/paritytech/parity-bridge on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/paritytech/parity-bridge
[INFO] finished tweaking git repo https://github.com/paritytech/parity-bridge
[INFO] tweaked toml for git repo https://github.com/paritytech/parity-bridge written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/paritytech/parity-bridge already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ae41827509a648820dcda998f6c619157614793cc6d7eb1884a78e8d17b9de9
[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" "1ae41827509a648820dcda998f6c619157614793cc6d7eb1884a78e8d17b9de9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ae41827509a648820dcda998f6c619157614793cc6d7eb1884a78e8d17b9de9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ae41827509a648820dcda998f6c619157614793cc6d7eb1884a78e8d17b9de9", kill_on_drop: false }`
[INFO] [stdout] 1ae41827509a648820dcda998f6c619157614793cc6d7eb1884a78e8d17b9de9
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 467bca9cb2ed91653d20edb0a15d601992e4b51301facf8948d2cf7ac6d8ad18
[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" "467bca9cb2ed91653d20edb0a15d601992e4b51301facf8948d2cf7ac6d8ad18", 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 libc v0.2.64
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling smallvec v0.6.10
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling rustc-hex v2.0.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]    Compiling byte-slice-cast v0.3.2
[INFO] [stderr]    Compiling static_assertions v0.2.5
[INFO] [stderr]    Compiling bitvec v0.14.0
[INFO] [stderr]    Compiling safemem v0.3.2
[INFO] [stderr]    Compiling openssl v0.10.25
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling scoped-tls v0.1.2
[INFO] [stderr]    Compiling indexmap v1.2.0
[INFO] [stderr]    Compiling subtle v2.2.1
[INFO] [stderr]    Compiling smallvec v1.0.0
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.1
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling zeroize v1.0.0
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling ethabi-contract v9.0.0
[INFO] [stderr]    Compiling bridge v0.5.0 (/opt/rustwide/workdir/bridge)
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling strsim v0.9.2
[INFO] [stderr]    Compiling parity-bridge v0.5.0 (/opt/rustwide/workdir/cli)
[INFO] [stderr]    Compiling parity-bridge-deploy v0.5.0 (/opt/rustwide/workdir/deploy)
[INFO] [stderr]    Compiling srml-bridge-poa v0.1.0 (/opt/rustwide/workdir/srml-bridge-poa)
[INFO] [stderr]    Compiling parity-ethereum-grandpa-builtin v0.1.0 (/opt/rustwide/workdir/parity-ethereum-grandpa-builtin)
[INFO] [stderr]    Compiling lock_api v0.3.1
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling rlp v0.4.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.8
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling pretty_assertions v0.6.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling impl-rlp v0.2.0
[INFO] [stderr]    Compiling tokio-executor v0.1.8
[INFO] [stderr]    Compiling tokio-sync v0.1.7
[INFO] [stderr]    Compiling tokio-timer v0.1.2
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr] error: failed to run custom build command for `bridge v0.5.0 (/opt/rustwide/workdir/bridge)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/bridge-0c18730ec4b4ac3d/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=../arbitrary/contracts/bridge.sol
[INFO] [stderr]   cargo:rustc-env=GIT_HASH=9f42917999d05858e9180a311b8326c777c051b3
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at '`solc --version` failed to run. run it yourself to verify. file an issue if this persists: Os { code: 2, kind: NotFound, message: "No such file or directory" }', bridge/build.rs:36:69
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x557b3eef6590 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x557b3eef6590 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x557b3eef6590 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x557b3eef6590 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x557b3ef1338c - core::fmt::write::h306731c068f7162c
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stderr]      5:     0x557b3eef4555 - std::io::Write::write_fmt::hd2fa90334eee2a21
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stderr]      6:     0x557b3eef81bb - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x557b3eef81bb - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x557b3eef81bb - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x557b3eef7c91 - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x557b3eef8884 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stderr]     11:     0x557b3eef8367 - std::panicking::begin_panic_handler::{{closure}}::h8ab3b4491718b2c7
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:519:13
[INFO] [stderr]     12:     0x557b3eef6a8c - std::sys_common::backtrace::__rust_end_short_backtrace::hd489062ffa586a9f
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x557b3eef82c9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:515:5
[INFO] [stderr]     14:     0x557b3eedb211 - core::panicking::panic_fmt::hca6330e3e14086b4
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x557b3eedb2a3 - core::result::unwrap_failed::h6160d2b4bfbb0e87
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/result.rs:1355:5
[INFO] [stderr]     16:     0x557b3eedf3ed - core::result::Result<T,E>::expect::hf202ae13960cb589
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/result.rs:997:23
[INFO] [stderr]     17:     0x557b3eee292b - build_script_build::main::hd01374ff6cee6e7e
[INFO] [stderr]                                  at /opt/rustwide/workdir/bridge/build.rs:36:15
[INFO] [stderr]     18:     0x557b3eee122b - core::ops::function::FnOnce::call_once::h2e6b10ba541c3a99
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x557b3eee0ace - std::sys_common::backtrace::__rust_begin_short_backtrace::hb93ee3c821ca7745
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     20:     0x557b3eede911 - std::rt::lang_start::{{closure}}::h306d7890cfc388e2
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:49:18
[INFO] [stderr]     21:     0x557b3eef8d89 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h2aabc384aab89b7b
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x557b3eef8d89 - std::panicking::try::do_call::hc5fcacb7a85fc7b1
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stderr]     23:     0x557b3eef8d89 - std::panicking::try::hb5d9603af3abbe3a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stderr]     24:     0x557b3eef8d89 - std::panic::catch_unwind::h98fe6ac3925e64b4
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stderr]     25:     0x557b3eef8d89 - std::rt::lang_start_internal::h22ac7383c516f93e
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:34:21
[INFO] [stderr]     26:     0x557b3eede8f0 - std::rt::lang_start::hfe6ec9d0fe432678
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:48:5
[INFO] [stderr]     27:     0x557b3eee2bec - main
[INFO] [stderr]     28:     0x7f70f24890b3 - __libc_start_main
[INFO] [stderr]     29:     0x557b3eedb96e - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "467bca9cb2ed91653d20edb0a15d601992e4b51301facf8948d2cf7ac6d8ad18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "467bca9cb2ed91653d20edb0a15d601992e4b51301facf8948d2cf7ac6d8ad18", kill_on_drop: false }`
[INFO] [stdout] 467bca9cb2ed91653d20edb0a15d601992e4b51301facf8948d2cf7ac6d8ad18
