[INFO] crate grin_wallet_libwallet 3.1.0 is already in cache
[INFO] checking grin_wallet_libwallet-3.1.0 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate grin_wallet_libwallet 3.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate grin_wallet_libwallet 3.1.0 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "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-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 413b472385d6f494136dd677b7f8580837ed94f1256b8116c150fc965aa1938c
[INFO] running `"docker" "start" "-a" "413b472385d6f494136dd677b7f8580837ed94f1256b8116c150fc965aa1938c"`
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[INFO] [stderr]     Checking grin_wallet_util v3.1.0
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[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 6m 24s
[INFO] running `"docker" "inspect" "413b472385d6f494136dd677b7f8580837ed94f1256b8116c150fc965aa1938c"`
[INFO] running `"docker" "rm" "-f" "413b472385d6f494136dd677b7f8580837ed94f1256b8116c150fc965aa1938c"`
[INFO] [stdout] 413b472385d6f494136dd677b7f8580837ed94f1256b8116c150fc965aa1938c