[INFO] crate asserter 0.1.0 is already in cache
[INFO] checking asserter-0.1.0 against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] extracting crate asserter 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate asserter 0.1.0 on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate asserter 0.1.0
[INFO] finished tweaking crates.io crate asserter 0.1.0
[INFO] tweaked toml for crates.io crate asserter 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ba72b15666b2491415aec703a02c2364fe5e2790" "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] 2f05e1460cb8c23a96c06bd81a0185959490b975b37bc2446493b561208f8330
[INFO] running `"docker" "start" "-a" "2f05e1460cb8c23a96c06bd81a0185959490b975b37bc2446493b561208f8330"`
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling pmutil v0.5.3
[INFO] [stderr]    Compiling asserter-macros v0.1.0
[INFO] [stderr]     Checking asserter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `foo`
[INFO] [stderr]   --> tests/unwrap.rs:18:25
[INFO] [stderr]    |
[INFO] [stderr] 18 |     unwrap!(foo as Some(foo));
[INFO] [stderr]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_foo`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `foo`
[INFO] [stderr]   --> tests/unwrap.rs:72:36
[INFO] [stderr]    |
[INFO] [stderr] 72 |     unwrap!(foo, Complex::Struct { foo, bar });
[INFO] [stderr]    |                                    ^^^ help: try ignoring the field: `foo: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bar`
[INFO] [stderr]   --> tests/unwrap.rs:72:41
[INFO] [stderr]    |
[INFO] [stderr] 72 |     unwrap!(foo, Complex::Struct { foo, bar });
[INFO] [stderr]    |                                         ^^^ help: try ignoring the field: `bar: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]   --> tests/unwrap.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | #[should_panic]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.36s
[INFO] running `"docker" "inspect" "2f05e1460cb8c23a96c06bd81a0185959490b975b37bc2446493b561208f8330"`
[INFO] running `"docker" "rm" "-f" "2f05e1460cb8c23a96c06bd81a0185959490b975b37bc2446493b561208f8330"`
[INFO] [stdout] 2f05e1460cb8c23a96c06bd81a0185959490b975b37bc2446493b561208f8330