[INFO] fetching crate substrate-frame-rpc-support 2.0.0...
[INFO] testing substrate-frame-rpc-support-2.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate substrate-frame-rpc-support 2.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate substrate-frame-rpc-support 2.0.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate substrate-frame-rpc-support 2.0.0
[INFO] finished tweaking crates.io crate substrate-frame-rpc-support 2.0.0
[INFO] tweaked toml for crates.io crate substrate-frame-rpc-support 2.0.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e88e3a308e15e0a27a178ec68af39ac91190486eff64a401b2e3a03c1aaf82e
[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" "0e88e3a308e15e0a27a178ec68af39ac91190486eff64a401b2e3a03c1aaf82e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e88e3a308e15e0a27a178ec68af39ac91190486eff64a401b2e3a03c1aaf82e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e88e3a308e15e0a27a178ec68af39ac91190486eff64a401b2e3a03c1aaf82e", kill_on_drop: false }`
[INFO] [stdout] 0e88e3a308e15e0a27a178ec68af39ac91190486eff64a401b2e3a03c1aaf82e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44858a4e015775139eb2f6380ae6f5b44025f412e82b7c1f81727aa9b743bfa0
[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" "44858a4e015775139eb2f6380ae6f5b44025f412e82b7c1f81727aa9b743bfa0", kill_on_drop: false }`
[INFO] [stderr]    Compiling ring v0.16.19
[INFO] [stderr]    Compiling futures-lite v1.11.3
[INFO] [stderr]    Compiling polling v2.0.2
[INFO] [stderr]    Compiling tokio v0.2.24
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling signal-hook v0.1.17
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling const-random-macro v0.1.13
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling sp-panic-handler v2.0.0
[INFO] [stderr]    Compiling fixed-hash v0.6.1
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling libsecp256k1 v0.3.5
[INFO] [stderr]    Compiling prometheus v0.10.0
[INFO] [stderr]    Compiling tracing-subscriber v0.2.15
[INFO] [stderr]    Compiling jsonrpc-core v15.1.0
[INFO] [stderr]    Compiling curve25519-dalek v3.0.0
[INFO] [stderr]    Compiling curve25519-dalek v2.1.0
[INFO] [stderr]    Compiling merlin v2.0.0
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling tiny-bip39 v0.7.3
[INFO] [stderr]    Compiling jsonrpc-derive v15.1.0
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling const-random v0.1.13
[INFO] [stderr]    Compiling jsonrpc-pubsub v15.1.0
[INFO] [stderr]    Compiling async-io v1.3.1
[INFO] [stderr]    Compiling async-executor v1.4.0
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling schnorrkel v0.9.1
[INFO] [stderr]    Compiling sp-storage v2.0.0
[INFO] [stderr]    Compiling sp-wasm-interface v2.0.0
[INFO] [stderr]    Compiling sp-arithmetic v2.0.0
[INFO] [stderr]    Compiling ed25519-dalek v1.0.1
[INFO] [stderr]    Compiling ahash v0.2.19
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling primitive-types v0.7.3
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sp-arithmetic-2.0.0/src/fixed_point.rs:541:9
[INFO] [stdout]      |
[INFO] [stdout] 541  |                   let accuracy = P::ACCURACY.saturated_into();
[INFO] [stdout]      |                       ^^^^^^^^ consider giving `accuracy` a type
[INFO] [stdout] ...
[INFO] [stdout] 1595 | / implement_fixed!(
[INFO] [stdout] 1596 | |     FixedI64,
[INFO] [stdout] 1597 | |     test_fixed_i64,
[INFO] [stdout] 1598 | |     i64,
[INFO] [stdout] ...    |
[INFO] [stdout] 1601 | |     "_Fixed Point 64 bits signed, range = [-9223372036.854775808, 9223372036.854775807]_",
[INFO] [stdout] 1602 | | );
[INFO] [stdout]      | |__- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling async-process v1.0.1
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sp-arithmetic-2.0.0/src/fixed_point.rs:541:9
[INFO] [stdout]      |
[INFO] [stdout] 541  |                   let accuracy = P::ACCURACY.saturated_into();
[INFO] [stdout]      |                       ^^^^^^^^ consider giving `accuracy` a type
[INFO] [stdout] ...
[INFO] [stdout] 1604 | / implement_fixed!(
[INFO] [stdout] 1605 | |     FixedI128,
[INFO] [stdout] 1606 | |     test_fixed_i128,
[INFO] [stdout] 1607 | |     i128,
[INFO] [stdout] ...    |
[INFO] [stdout] 1611 | |         [-170141183460469231731.687303715884105728, 170141183460469231731.687303715884105727]_",
[INFO] [stdout] 1612 | | );
[INFO] [stdout]      | |__- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sp-arithmetic-2.0.0/src/fixed_point.rs:541:9
[INFO] [stdout]      |
[INFO] [stdout] 541  |                   let accuracy = P::ACCURACY.saturated_into();
[INFO] [stdout]      |                       ^^^^^^^^ consider giving `accuracy` a type
[INFO] [stdout] ...
[INFO] [stdout] 1614 | / implement_fixed!(
[INFO] [stdout] 1615 | |     FixedU128,
[INFO] [stdout] 1616 | |     test_fixed_u128,
[INFO] [stdout] 1617 | |     u128,
[INFO] [stdout] ...    |
[INFO] [stdout] 1621 | |         [0.000000000000000000, 340282366920938463463.374607431768211455]_",
[INFO] [stdout] 1622 | | );
[INFO] [stdout]      | |__- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sp-tracing v2.0.0
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sp-arithmetic`
[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" "44858a4e015775139eb2f6380ae6f5b44025f412e82b7c1f81727aa9b743bfa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44858a4e015775139eb2f6380ae6f5b44025f412e82b7c1f81727aa9b743bfa0", kill_on_drop: false }`
[INFO] [stdout] 44858a4e015775139eb2f6380ae6f5b44025f412e82b7c1f81727aa9b743bfa0