[INFO] updating cached repository https://github.com/bifrost-codes/substrate-rpc-client
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 18cc682b656c0a49cd254c08d867054510f0330b
[INFO] checking bifrost-codes/substrate-rpc-client against master#2da942f32802c8233a09744024dfbc34431adf65 for pr-66963
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbifrost-codes%2Fsubstrate-rpc-client" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bifrost-codes/substrate-rpc-client on toolchain 2da942f32802c8233a09744024dfbc34431adf65
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/bifrost-codes/substrate-rpc-client
[INFO] finished tweaking git repo https://github.com/bifrost-codes/substrate-rpc-client
[INFO] tweaked toml for git repo https://github.com/bifrost-codes/substrate-rpc-client written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/bifrost-codes/substrate-rpc-client already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] eaaa3e0f11d4e2d455f3a104e4f6d404cd1d1f69665beabab1e253a0ef487d30
[INFO] running `"docker" "start" "-a" "eaaa3e0f11d4e2d455f3a104e4f6d404cd1d1f69665beabab1e253a0ef487d30"`
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[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/rpc/client.rs:80:17
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 REQUEST_TRANSFER => match value.get("error") {
[INFO] [stderr]    |                 ---------------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 80 |                 _ => debug!("Unknown request id"),
[INFO] [stderr]    |                 ^ unreachable pattern
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `REQUEST_TRANSFER`
[INFO] [stderr]   --> src/rpc/client.rs:76:17
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 REQUEST_TRANSFER => match value.get("error") {
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_REQUEST_TRANSFER`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `REQUEST_TRANSFER` should have a snake case name
[INFO] [stderr]   --> src/rpc/client.rs:76:17
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 REQUEST_TRANSFER => match value.get("error") {
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `request_transfer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Compact`
[INFO] [stderr]    --> src/extrinsic/xt_macros.rs:129:17
[INFO] [stderr]     |
[INFO] [stderr] 129 |     use codec::{Compact, Encode};
[INFO] [stderr]     |                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::utils::*`
[INFO] [stderr]    --> src/extrinsic/xt_macros.rs:133:9
[INFO] [stderr]     |
[INFO] [stderr] 133 |     use crate::utils::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Encode`
[INFO] [stderr]    --> src/extrinsic/xt_macros.rs:129:26
[INFO] [stderr]     |
[INFO] [stderr] 129 |     use codec::{Compact, Encode};
[INFO] [stderr]     |                          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/rpc/client.rs:80:17
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 REQUEST_TRANSFER => match value.get("error") {
[INFO] [stderr]    |                 ---------------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 80 |                 _ => debug!("Unknown request id"),
[INFO] [stderr]    |                 ^ unreachable pattern
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `REQUEST_TRANSFER`
[INFO] [stderr]   --> src/rpc/client.rs:76:17
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 REQUEST_TRANSFER => match value.get("error") {
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_REQUEST_TRANSFER`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `REQUEST_TRANSFER` should have a snake case name
[INFO] [stderr]   --> src/rpc/client.rs:76:17
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 REQUEST_TRANSFER => match value.get("error") {
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `request_transfer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6m 48s
[INFO] running `"docker" "inspect" "eaaa3e0f11d4e2d455f3a104e4f6d404cd1d1f69665beabab1e253a0ef487d30"`
[INFO] running `"docker" "rm" "-f" "eaaa3e0f11d4e2d455f3a104e4f6d404cd1d1f69665beabab1e253a0ef487d30"`
[INFO] [stdout] eaaa3e0f11d4e2d455f3a104e4f6d404cd1d1f69665beabab1e253a0ef487d30