[INFO] crate bolero 0.4.2 is already in cache
[INFO] checking bolero-0.4.2 against try#1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0 for pr-69530
[INFO] extracting crate bolero 0.4.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate bolero 0.4.2 on toolchain 1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate bolero 0.4.2
[INFO] finished tweaking crates.io crate bolero 0.4.2
[INFO] tweaked toml for crates.io crate bolero 0.4.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "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" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "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] 9c9792029a637c536ead686d5b269bc8a67b7e55cf20017c76956fc4f7ed3309
[INFO] running `"docker" "start" "-a" "9c9792029a637c536ead686d5b269bc8a67b7e55cf20017c76956fc4f7ed3309"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking pretty-hex v0.1.1
[INFO] [stderr]    Compiling bolero-honggfuzz v0.4.1
[INFO] [stderr]    Compiling bolero-afl v0.4.0
[INFO] [stderr]    Compiling bolero-libfuzzer v0.4.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]    Compiling bolero-generator-derive v0.4.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking libtest-mimic v0.1.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking bolero-generator v0.4.1
[INFO] [stderr]     Checking bolero-engine v0.4.1
[INFO] [stderr]     Checking bolero v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/test.rs:135:35
[INFO] [stderr]     |
[INFO] [stderr] 135 |             let testfn = unsafe { (TESTFN.as_mut().expect("uninitialized test function")) };
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/test.rs:135:35
[INFO] [stderr]     |
[INFO] [stderr] 135 |             let testfn = unsafe { (TESTFN.as_mut().expect("uninitialized test function")) };
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.27s
[INFO] running `"docker" "inspect" "9c9792029a637c536ead686d5b269bc8a67b7e55cf20017c76956fc4f7ed3309"`
[INFO] running `"docker" "rm" "-f" "9c9792029a637c536ead686d5b269bc8a67b7e55cf20017c76956fc4f7ed3309"`
[INFO] [stdout] 9c9792029a637c536ead686d5b269bc8a67b7e55cf20017c76956fc4f7ed3309