[INFO] fetching crate solana-logger 1.0.20...
[INFO] checking solana-logger-1.0.20 against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] extracting crate solana-logger 1.0.20 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate solana-logger 1.0.20 on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate solana-logger 1.0.20
[INFO] finished tweaking crates.io crate solana-logger 1.0.20
[INFO] tweaked toml for crates.io crate solana-logger 1.0.20 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+d7b51666469c792a8a3f40849607739bae1e705e" "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] 94372cb8637d33b814119030b64e3ddd443a1bff2df0379d2d86a42e18a7e3d5
[INFO] running `"docker" "start" "-a" "94372cb8637d33b814119030b64e3ddd443a1bff2df0379d2d86a42e18a7e3d5"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking solana-logger v1.0.20 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]  --> src/lib.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |         { Arc::new(RwLock::new(env_logger::Logger::from_default_env())) };
[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/lib.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |         { Arc::new(RwLock::new(env_logger::Logger::from_default_env())) };
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/lib.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     std::mem::replace(&mut *rw, logger);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/lib.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     std::mem::replace(&mut *rw, logger);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.97s
[INFO] running `"docker" "inspect" "94372cb8637d33b814119030b64e3ddd443a1bff2df0379d2d86a42e18a7e3d5"`
[INFO] running `"docker" "rm" "-f" "94372cb8637d33b814119030b64e3ddd443a1bff2df0379d2d86a42e18a7e3d5"`
[INFO] [stdout] 94372cb8637d33b814119030b64e3ddd443a1bff2df0379d2d86a42e18a7e3d5