[INFO] fetching crate grin_wallet_libwallet 3.1.0...
[INFO] checking grin_wallet_libwallet-3.1.0 against master#74e80468347471779be6060d8d7d6d04e98e467f for pr-72788
[INFO] extracting crate grin_wallet_libwallet 3.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate grin_wallet_libwallet 3.1.0 on toolchain 74e80468347471779be6060d8d7d6d04e98e467f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate grin_wallet_libwallet 3.1.0
[INFO] finished tweaking crates.io crate grin_wallet_libwallet 3.1.0
[INFO] tweaked toml for crates.io crate grin_wallet_libwallet 3.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+74e80468347471779be6060d8d7d6d04e98e467f" "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] 7d2fec998b94af83c1bf3ba63b8a2290d680beb4fa198183272a441a6c9bba38
[INFO] running `"docker" "start" "-a" "7d2fec998b94af83c1bf3ba63b8a2290d680beb4fa198183272a441a6c9bba38"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking serde v1.0.111
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking serde_yaml v0.8.12
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling bindgen v0.52.0
[INFO] [stderr]     Checking grin_secp256k1zkp v0.7.9
[INFO] [stderr]     Checking log4rs v0.8.3
[INFO] [stderr]     Checking jsonrpc-core v10.1.0
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking easy-jsonrpc-mw v0.5.4
[INFO] [stderr]     Checking grin_util v3.1.0
[INFO] [stderr]     Checking rustls-native-certs v0.1.0
[INFO] [stderr]     Checking grin_keychain v3.1.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-io-timeout v0.4.0
[INFO] [stderr]     Checking tokio-rustls v0.12.3
[INFO] [stderr]     Checking h2 v0.2.5
[INFO] [stderr]     Checking hyper v0.13.6
[INFO] [stderr]    Compiling croaring-sys v0.4.4
[INFO] [stderr]     Checking hyper-rustls v0.19.1
[INFO] [stderr]     Checking hyper-timeout v0.3.1
[INFO] [stderr]     Checking croaring v0.4.4
[INFO] [stderr]     Checking grin_core v3.1.0
[INFO] [stderr]     Checking grin_store v3.1.0
[INFO] [stderr]     Checking grin_pool v3.1.0
[INFO] [stderr]     Checking grin_chain v3.1.0
[INFO] [stderr]     Checking grin_p2p v3.1.0
[INFO] [stderr]     Checking grin_api v3.1.0
[INFO] [stderr]     Checking grin_wallet_util v3.1.0
[INFO] [stderr]     Checking grin_wallet_config v3.1.0
[INFO] [stderr]     Checking grin_wallet_libwallet v3.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/internal/tx.rs:39:40
[INFO] [stderr]    |
[INFO] [stderr] 39 |     static ref SLATE_COUNTER: Mutex<u8> = { Mutex::new(0) };
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/internal/tx.rs:39:40
[INFO] [stderr]    |
[INFO] [stderr] 39 |     static ref SLATE_COUNTER: Mutex<u8> = { Mutex::new(0) };
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 03s
[INFO] running `"docker" "inspect" "7d2fec998b94af83c1bf3ba63b8a2290d680beb4fa198183272a441a6c9bba38"`
[INFO] running `"docker" "rm" "-f" "7d2fec998b94af83c1bf3ba63b8a2290d680beb4fa198183272a441a6c9bba38"`
[INFO] [stdout] 7d2fec998b94af83c1bf3ba63b8a2290d680beb4fa198183272a441a6c9bba38