[INFO] cloning repository https://github.com/paritytech/parity-codec
[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-codec" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparitytech%2Fparity-codec", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparitytech%2Fparity-codec'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e28160a101d6b914238e1b1c34b4ff4f785a512e
[INFO] testing paritytech/parity-codec against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparitytech%2Fparity-codec" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paritytech/parity-codec on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/paritytech/parity-codec
[INFO] removed workspace from git repo https://github.com/paritytech/parity-codec
[INFO] removed path dependency parity-scale-codec-derive from git repo https://github.com/paritytech/parity-codec
[INFO] removed path dependency parity-scale-codec-derive from git repo https://github.com/paritytech/parity-codec
[INFO] finished tweaking git repo https://github.com/paritytech/parity-codec
[INFO] tweaked toml for git repo https://github.com/paritytech/parity-codec written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derive_arbitrary v0.4.7
[INFO] [stderr]   Downloaded arbitrary v0.4.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44101dc21ec055cc763d84454d0a8cbddc58c9f6dafcc03ba1ca494fd22d2996
[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" "44101dc21ec055cc763d84454d0a8cbddc58c9f6dafcc03ba1ca494fd22d2996", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44101dc21ec055cc763d84454d0a8cbddc58c9f6dafcc03ba1ca494fd22d2996", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44101dc21ec055cc763d84454d0a8cbddc58c9f6dafcc03ba1ca494fd22d2996", kill_on_drop: false }`
[INFO] [stdout] 44101dc21ec055cc763d84454d0a8cbddc58c9f6dafcc03ba1ca494fd22d2996
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cb9e7e3bd84f8c37b306b95936e6f6f5d9ee2e33c9181791c75f5d44c607f83b
[INFO] running `Command { std: "docker" "start" "-a" "cb9e7e3bd84f8c37b306b95936e6f6f5d9ee2e33c9181791c75f5d44c607f83b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling radium v0.3.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling byte-slice-cast v0.3.5
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling bitvec v0.17.4
[INFO] [stderr]    Compiling parity-scale-codec v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.90s
[INFO] running `Command { std: "docker" "inspect" "cb9e7e3bd84f8c37b306b95936e6f6f5d9ee2e33c9181791c75f5d44c607f83b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb9e7e3bd84f8c37b306b95936e6f6f5d9ee2e33c9181791c75f5d44c607f83b", kill_on_drop: false }`
[INFO] [stdout] cb9e7e3bd84f8c37b306b95936e6f6f5d9ee2e33c9181791c75f5d44c607f83b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f5f31cded6bc0a18274127ae824b272d8d599363e6aead5cf662ccfba955f12
[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" "5f5f31cded6bc0a18274127ae824b272d8d599363e6aead5cf662ccfba955f12", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling rayon-core v1.8.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling half v1.6.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling oorandom v11.1.2
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling rayon v1.4.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling aho-corasick v0.7.14
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling regex v1.4.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling parity-scale-codec-derive v1.2.2
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling parity-scale-codec v1.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0053]: method `decode_from` has an incompatible type for trait
[INFO] [stdout]   --> tests/single_field_struct_encoding.rs:14:61
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[derive(Debug, PartialEq, Eq, Clone, Copy, Encode, Decode, CompactAs)]
[INFO] [stdout]    |                                                             ^^^^^^^^^ expected enum `std::result::Result`, found struct `SSkip`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected fn pointer `fn(_) -> std::result::Result<SSkip, _::_parity_scale_codec::Error>`
[INFO] [stdout]               found fn pointer `fn(_) -> SSkip`
[INFO] [stdout]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `decode_from` has an incompatible type for trait
[INFO] [stdout]   --> tests/single_field_struct_encoding.rs:36:61
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[derive(Debug, PartialEq, Eq, Clone, Copy, Encode, Decode, CompactAs)]
[INFO] [stdout]    |                                                             ^^^^^^^^^ expected enum `std::result::Result`, found struct `U`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected fn pointer `fn(_) -> std::result::Result<U, _::_parity_scale_codec::Error>`
[INFO] [stdout]               found fn pointer `fn(_) -> U`
[INFO] [stdout]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `decode_from` has an incompatible type for trait
[INFO] [stdout]   --> tests/single_field_struct_encoding.rs:40:61
[INFO] [stdout]    |
[INFO] [stdout] 40 | #[derive(Debug, PartialEq, Eq, Clone, Copy, Encode, Decode, CompactAs)]
[INFO] [stdout]    |                                                             ^^^^^^^^^ expected enum `std::result::Result`, found struct `U2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected fn pointer `fn(_) -> std::result::Result<U2, _::_parity_scale_codec::Error>`
[INFO] [stdout]               found fn pointer `fn(_) -> U2`
[INFO] [stdout]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `decode_from` has an incompatible type for trait
[INFO] [stdout]   --> tests/single_field_struct_encoding.rs:44:61
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[derive(Debug, PartialEq, Eq, Clone, Copy, Encode, Decode, CompactAs)]
[INFO] [stdout]    |                                                             ^^^^^^^^^ expected enum `std::result::Result`, found struct `USkip`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected fn pointer `fn(_) -> std::result::Result<USkip, _::_parity_scale_codec::Error>`
[INFO] [stdout]               found fn pointer `fn(_) -> USkip`
[INFO] [stdout]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0053`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `parity-scale-codec`
[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" "5f5f31cded6bc0a18274127ae824b272d8d599363e6aead5cf662ccfba955f12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f5f31cded6bc0a18274127ae824b272d8d599363e6aead5cf662ccfba955f12", kill_on_drop: false }`
[INFO] [stdout] 5f5f31cded6bc0a18274127ae824b272d8d599363e6aead5cf662ccfba955f12
