[INFO] cloning repository https://github.com/iExecBlockchainComputing/iexec-substrate-poc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iExecBlockchainComputing/iexec-substrate-poc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiExecBlockchainComputing%2Fiexec-substrate-poc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiExecBlockchainComputing%2Fiexec-substrate-poc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 76e56255aa4ec91349e4ac1d5dac04232c2f0338
[INFO] checking iExecBlockchainComputing/iexec-substrate-poc against try#4a04890980766cc79878135f5ade8c0c4321e943 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiExecBlockchainComputing%2Fiexec-substrate-poc" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iExecBlockchainComputing/iexec-substrate-poc on toolchain 4a04890980766cc79878135f5ade8c0c4321e943
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iExecBlockchainComputing/iexec-substrate-poc
[INFO] finished tweaking git repo https://github.com/iExecBlockchainComputing/iexec-substrate-poc
[INFO] tweaked toml for git repo https://github.com/iExecBlockchainComputing/iexec-substrate-poc written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/iExecBlockchainComputing/iexec-substrate-poc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/paritytech/substrate.git`
[INFO] [stderr]     Updating git repository `https://github.com/paritytech/parity-common`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cc v1.0.26
[INFO] [stderr]   Downloaded crunchy v0.2.1
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[INFO] [stderr]   Downloaded parity-multihash v0.1.0
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[INFO] [stderr]   Downloaded libp2p-kad v0.3.3
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[INFO] [stderr]   Downloaded syn v0.15.26
[INFO] [stderr]   Downloaded librocksdb-sys v5.14.3
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[INFO] [stderr]   Downloaded curve25519-dalek v1.1.3
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/jobserver:/tmp/crater-runner-fifo:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a204b374ae387d267b7493ef4d0b6bab421b722c9736ff7d54e76ae094784876
[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" "a204b374ae387d267b7493ef4d0b6bab421b722c9736ff7d54e76ae094784876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a204b374ae387d267b7493ef4d0b6bab421b722c9736ff7d54e76ae094784876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a204b374ae387d267b7493ef4d0b6bab421b722c9736ff7d54e76ae094784876", kill_on_drop: false }`
[INFO] [stdout] a204b374ae387d267b7493ef4d0b6bab421b722c9736ff7d54e76ae094784876
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/jobserver:/tmp/crater-runner-fifo:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "RUSTUP_TOOLCHAIN=4a04890980766cc79878135f5ade8c0c4321e943" "-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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/tmp/crater-runner-fifo/jobserver-crater-fwd" "/opt/rustwide/cargo-home/bin/cargo" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28864fe4f0d0d60e9c215edb1b5de8757a594a5aa7375f3ab6e2d7d2f923cc36
[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" "28864fe4f0d0d60e9c215edb1b5de8757a594a5aa7375f3ab6e2d7d2f923cc36", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling serde v1.0.88
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]     Checking opaque-debug v0.2.2
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking futures v0.1.25
[INFO] [stderr]    Compiling crunchy v0.1.6
[INFO] [stderr]     Checking arrayref v0.3.5
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking rustc-demangle v0.1.13
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[INFO] [stderr]     Checking constant_time_eq v0.1.3
[INFO] [stderr]    Compiling subtle v2.0.0
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling crunchy v0.2.1
[INFO] [stderr]     Checking hash-db v0.11.0
[INFO] [stderr]     Checking rustc-hex v2.0.1
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.1
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]     Checking memory_units v0.3.0
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[INFO] [stderr]     Checking sha1 v0.6.0
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[INFO] [stderr]     Checking integer-sqrt v0.1.2
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]     Checking bitflags v1.0.4
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[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling openssl v0.10.16
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling protobuf v2.3.0
[INFO] [stderr]     Checking data-encoding v2.1.2
[INFO] [stderr]     Checking bs58 v0.2.2
[INFO] [stderr]     Checking byteorder v0.4.2
[INFO] [stderr]    Compiling slog v2.4.1
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[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking parity-bytes v0.1.0 (https://github.com/paritytech/parity-common?rev=b0317f649ab2c665b7987b8475878fc4d2e1f81d#b0317f64)
[INFO] [stderr]     Checking ucd-util v0.1.3
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[INFO] [stderr]    Compiling bindgen v0.43.2
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking quick-error v0.1.4
[INFO] [stderr]     Checking static_slice v0.0.3
[INFO] [stderr]     Checking nohash-hasher v0.1.1
[INFO] [stderr]    Compiling make-cmd v0.1.0
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking linked-hash-map v0.4.2
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]     Checking string v0.1.3
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking linked-hash-map v0.5.1
[INFO] [stderr]     Checking interleaved-ordered v0.1.1
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling names v0.11.0
[INFO] [stderr]    Compiling sysinfo v0.8.0
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]     Checking target_info v0.1.0
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.5
[INFO] [stderr]     Checking owning_ref v0.4.0
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[INFO] [stderr]    Compiling rand_chacha v0.1.1
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[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]     Checking block-padding v0.1.3
[INFO] [stderr]     Checking tokio-sync v0.1.1
[INFO] [stderr]     Checking trie-root v0.11.0
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]    Compiling proc-macro-hack v0.4.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling clang-sys v0.26.4
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]    Compiling unicase v1.4.2
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[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]     Checking lru-cache v0.1.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking app_dirs v1.2.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking rand_isaac v0.1.1
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[INFO] [stderr]    Compiling sr-std v0.1.0 (https://github.com/paritytech/substrate.git?rev=ed2faf445f8849e8d90ddadc684ac2658819e55f#ed2faf44)
[INFO] [stderr]    Compiling sr-io v0.1.0 (https://github.com/paritytech/substrate.git?rev=ed2faf445f8849e8d90ddadc684ac2658819e55f#ed2faf44)
[INFO] [stderr]    Compiling safe-mix v1.0.0
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling snow v0.5.1
[INFO] [stderr]    Compiling sr-sandbox v0.1.0 (https://github.com/paritytech/substrate.git?rev=ed2faf445f8849e8d90ddadc684ac2658819e55f#ed2faf44)
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[INFO] [stderr]    Compiling toml v0.4.10
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[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking kvdb v0.1.0 (https://github.com/paritytech/parity-common?rev=b0317f649ab2c665b7987b8475878fc4d2e1f81d#b0317f64)
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[INFO] [stderr]     Checking impl-codec v0.2.0
[INFO] [stderr]    Compiling proc-macro-crate v0.1.3
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[INFO] [stderr]    Compiling cexpr v0.3.4
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[INFO] [stderr]    Compiling env_logger v0.6.0
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[INFO] [stderr]    Compiling serde_derive v1.0.88
[INFO] [stderr]    Compiling parity-codec-derive v3.0.0
[INFO] [stderr]    Compiling sr-api-macros v0.1.0 (https://github.com/paritytech/substrate.git?rev=ed2faf445f8849e8d90ddadc684ac2658819e55f#ed2faf44)
[INFO] [stderr]    Compiling proc-macro-hack v0.5.4
[INFO] [stderr]    Compiling srml-support-procedural-tools-derive v0.1.0 (https://github.com/paritytech/substrate.git?rev=ed2faf445f8849e8d90ddadc684ac2658819e55f#ed2faf44)
[INFO] [stderr]    Compiling asn1_der_derive v0.1.1
[INFO] [stderr]    Compiling libp2p-core-derive v0.3.2
[INFO] [stderr]    Compiling jsonrpc-derive v10.1.0
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]     Checking unsigned-varint v0.2.2
[INFO] [stderr]     Checking twox-hash v1.1.2
[INFO] [stderr]     Checking trie-db v0.11.0
[INFO] [stderr]     Checking yamux v0.1.6
[INFO] [stderr]     Checking exit-future v0.1.3
[INFO] [stderr]    Compiling cc v1.0.26
[INFO] [stderr]     Checking libsecp256k1 v0.2.2
[INFO] [stderr]    Compiling paste-impl v0.1.4
[INFO] [stderr]     Checking asn1_der v0.6.1
[INFO] [stderr]    Compiling srml-support-procedural-tools v0.1.0 (https://github.com/paritytech/substrate.git?rev=ed2faf445f8849e8d90ddadc684ac2658819e55f#ed2faf44)
[INFO] [stderr]     Checking parity-multihash v0.1.0
[INFO] [stderr]     Checking multistream-select v0.3.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking substrate-trie v0.4.0 (https://github.com/paritytech/substrate.git?rev=ed2faf445f8849e8d90ddadc684ac2658819e55f#ed2faf44)
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ring-0.14.6/build.rs:425:20
[INFO] [stdout]     |
[INFO] [stdout] 425 |         .for_each(|&(lib_name, srcs, additional_srcs)| {
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stdout]     |                    |                                |
[INFO] [stdout]     |                    |                                expected due to this
[INFO] [stdout]     |                    expected tuple, found reference
[INFO] [stdout]     |
[INFO] [stdout]     = note:  expected tuple `(&str, &[PathBuf], &[PathBuf])`
[INFO] [stdout]             found reference `&_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ring`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "28864fe4f0d0d60e9c215edb1b5de8757a594a5aa7375f3ab6e2d7d2f923cc36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28864fe4f0d0d60e9c215edb1b5de8757a594a5aa7375f3ab6e2d7d2f923cc36", kill_on_drop: false }`
[INFO] [stdout] 28864fe4f0d0d60e9c215edb1b5de8757a594a5aa7375f3ab6e2d7d2f923cc36