[INFO] crate cached 0.12.0 is already in cache
[INFO] checking cached-0.12.0 against master#339f574809bf8e4166b8de3cdbe7df181d37af3d for pr-71896
[INFO] extracting crate cached 0.12.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate cached 0.12.0 on toolchain 339f574809bf8e4166b8de3cdbe7df181d37af3d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cached 0.12.0
[INFO] finished tweaking crates.io crate cached 0.12.0
[INFO] tweaked toml for crates.io crate cached 0.12.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate cached 0.12.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4b874a35493b8a78d5105557a8f75491b52417e3ef8d9618388cc8edd5575646
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "4b874a35493b8a78d5105557a8f75491b52417e3ef8d9618388cc8edd5575646"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]     Checking cached v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> tests/cached.rs:224:27
[INFO] [stderr]     |
[INFO] [stderr] 224 |     PostGet(cached_val) = { return Ok(cached_val.clone()) };
[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 function argument
[INFO] [stderr]    --> tests/cached.rs:231:22
[INFO] [stderr]     |
[INFO] [stderr] 231 |     Set(set_value) = { set_value.clone() };
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.66s
[INFO] running `"docker" "inspect" "4b874a35493b8a78d5105557a8f75491b52417e3ef8d9618388cc8edd5575646"`
[INFO] running `"docker" "rm" "-f" "4b874a35493b8a78d5105557a8f75491b52417e3ef8d9618388cc8edd5575646"`
[INFO] [stdout] 4b874a35493b8a78d5105557a8f75491b52417e3ef8d9618388cc8edd5575646