[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 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparitytech%2Fparity-bridge" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paritytech/parity-bridge 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/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-14/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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 5fcc329298ed685eb57334973642a685902bde078a7578e62bdfab6da3e8df40
[INFO] running `Command { std: "docker" "start" "-a" "5fcc329298ed685eb57334973642a685902bde078a7578e62bdfab6da3e8df40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fcc329298ed685eb57334973642a685902bde078a7578e62bdfab6da3e8df40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fcc329298ed685eb57334973642a685902bde078a7578e62bdfab6da3e8df40", kill_on_drop: false }`
[INFO] [stdout] 5fcc329298ed685eb57334973642a685902bde078a7578e62bdfab6da3e8df40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 36363323da7681e8c4985945f1054aeb61f81b34c9738b4765209769a3b315e4
[INFO] running `Command { std: "docker" "start" "-a" "36363323da7681e8c4985945f1054aeb61f81b34c9738b4765209769a3b315e4", 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 cc v1.0.41
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling rustc-hex v2.0.1
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling byte-slice-cast v0.3.2
[INFO] [stderr]    Compiling bitvec v0.14.0
[INFO] [stderr]    Compiling safemem v0.3.2
[INFO] [stderr]    Compiling openssl v0.10.25
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling subtle v2.2.1
[INFO] [stderr]    Compiling smallvec v1.0.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.1
[INFO] [stderr]    Compiling zeroize v1.0.0
[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-deploy v0.5.0 (/opt/rustwide/workdir/deploy)
[INFO] [stderr]    Compiling parity-bridge v0.5.0 (/opt/rustwide/workdir/cli)
[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 crossbeam-utils v0.6.6
[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 error-chain v0.12.1
[INFO] [stderr]    Compiling tokio-timer v0.1.2
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling derive_more v0.99.2
[INFO] [stderr]    Compiling rlp v0.4.2
[INFO] [stderr]    Compiling uint v0.8.1
[INFO] [stderr]    Compiling impl-rlp v0.2.0
[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-61f67582c03744fb/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:     0x5652b48a22a0 - std::backtrace_rs::backtrace::libunwind::trace::ha0ad43e8a952bfe7
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x5652b48a22a0 - std::backtrace_rs::backtrace::trace_unsynchronized::h6830419c0c4130dc
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5652b48a22a0 - std::sys_common::backtrace::_print_fmt::h8f3516631ffa1ef5
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x5652b48a22a0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::he1640d5f0d93f618
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x5652b48bf05c - core::fmt::write::h88012e1f01caeebf
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/core/src/fmt/mod.rs:1115:17
[INFO] [stderr]      5:     0x5652b48a0155 - std::io::Write::write_fmt::h360fa85b30182555
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/io/mod.rs:1665:15
[INFO] [stderr]      6:     0x5652b48a3edb - std::sys_common::backtrace::_print::ha1f00492f406a015
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x5652b48a3edb - std::sys_common::backtrace::print::hd54561b13feb6af3
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x5652b48a3edb - std::panicking::default_hook::{{closure}}::h84fe124cd0864662
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x5652b48a39b1 - std::panicking::default_hook::h5a8e74a76ce290a7
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x5652b48a45a4 - std::panicking::rust_panic_with_hook::h67c812a4fe9d4c91
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:622:17
[INFO] [stderr]     11:     0x5652b48a4087 - std::panicking::begin_panic_handler::{{closure}}::h33f9c1b96af300d7
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:519:13
[INFO] [stderr]     12:     0x5652b48a279c - std::sys_common::backtrace::__rust_end_short_backtrace::h51bae64be5921f0e
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x5652b48a3fe9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:515:5
[INFO] [stderr]     14:     0x5652b48871e1 - core::panicking::panic_fmt::h12a3a3c256485fca
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x5652b4887273 - core::result::unwrap_failed::h2d8d0952e3250de9
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/core/src/result.rs:1599:5
[INFO] [stderr]     16:     0x5652b488f37d - core::result::Result<T,E>::expect::hbe71269ab67937fa
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/core/src/result.rs:1241:23
[INFO] [stderr]     17:     0x5652b488921b - build_script_build::main::hf052f03c0b4e9852
[INFO] [stderr]                                  at /opt/rustwide/workdir/bridge/build.rs:36:15
[INFO] [stderr]     18:     0x5652b488b42b - core::ops::function::FnOnce::call_once::h30359bf668634be8
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x5652b488b1ae - std::sys_common::backtrace::__rust_begin_short_backtrace::h9b1f39139a25757b
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     20:     0x5652b488a6c1 - std::rt::lang_start::{{closure}}::hdf1195a4da69069b
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/rt.rs:63:18
[INFO] [stderr]     21:     0x5652b48a4aaa - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::ha9408abe89f69dc4
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x5652b48a4aaa - std::panicking::try::do_call::h5b0cc9e9102acb65
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:401:40
[INFO] [stderr]     23:     0x5652b48a4aaa - std::panicking::try::hddc7f8229138b3ba
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:365:19
[INFO] [stderr]     24:     0x5652b48a4aaa - std::panic::catch_unwind::hfa401ff8bab2986e
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panic.rs:434:14
[INFO] [stderr]     25:     0x5652b48a4aaa - std::rt::lang_start_internal::{{closure}}::h8163422320d11405
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/rt.rs:45:48
[INFO] [stderr]     26:     0x5652b48a4aaa - std::panicking::try::do_call::hc742cc7bb4f0fb20
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:401:40
[INFO] [stderr]     27:     0x5652b48a4aaa - std::panicking::try::ha37d8d2dd1acf7d3
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:365:19
[INFO] [stderr]     28:     0x5652b48a4aaa - std::panic::catch_unwind::h8a5381d5ecf437bc
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panic.rs:434:14
[INFO] [stderr]     29:     0x5652b48a4aaa - std::rt::lang_start_internal::h7e2cee8c90d4a4d3
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/rt.rs:45:20
[INFO] [stderr]     30:     0x5652b488a690 - std::rt::lang_start::h47f39067c6304bd1
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/rt.rs:62:5
[INFO] [stderr]     31:     0x5652b48894dc - main
[INFO] [stderr]     32:     0x7fb5e35ef0b3 - __libc_start_main
[INFO] [stderr]     33:     0x5652b488793e - _start
[INFO] [stderr]     34:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "36363323da7681e8c4985945f1054aeb61f81b34c9738b4765209769a3b315e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36363323da7681e8c4985945f1054aeb61f81b34c9738b4765209769a3b315e4", kill_on_drop: false }`
[INFO] [stdout] 36363323da7681e8c4985945f1054aeb61f81b34c9738b4765209769a3b315e4