[INFO] crate bolero 0.4.2 is already in cache
[INFO] testing bolero-0.4.2 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate bolero 0.4.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate bolero 0.4.2 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "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-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 459cc6b878272551e1f38a7a992ccf19d48774e1a356484367d0a3e5cfebd524
[INFO] running `"docker" "start" "-a" "459cc6b878272551e1f38a7a992ccf19d48774e1a356484367d0a3e5cfebd524"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling bolero-honggfuzz v0.4.1
[INFO] [stderr]    Compiling termcolor v0.3.6
[INFO] [stderr]    Compiling bolero-libfuzzer v0.4.0
[INFO] [stderr]    Compiling bolero-afl v0.4.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling libtest-mimic v0.1.0
[INFO] [stderr]    Compiling 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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.84s
[INFO] running `"docker" "inspect" "459cc6b878272551e1f38a7a992ccf19d48774e1a356484367d0a3e5cfebd524"`
[INFO] running `"docker" "rm" "-f" "459cc6b878272551e1f38a7a992ccf19d48774e1a356484367d0a3e5cfebd524"`
[INFO] [stdout] 459cc6b878272551e1f38a7a992ccf19d48774e1a356484367d0a3e5cfebd524
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] de8fa4c1e6b3a074e66c00f17de2a75d91fa8a693301aa05840836df2a75d430
[INFO] running `"docker" "start" "-a" "de8fa4c1e6b3a074e66c00f17de2a75d91fa8a693301aa05840836df2a75d430"`
[INFO] [stderr]    Compiling 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: 1 warning emitted
[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] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.56s
[INFO] running `"docker" "inspect" "de8fa4c1e6b3a074e66c00f17de2a75d91fa8a693301aa05840836df2a75d430"`
[INFO] running `"docker" "rm" "-f" "de8fa4c1e6b3a074e66c00f17de2a75d91fa8a693301aa05840836df2a75d430"`
[INFO] [stdout] de8fa4c1e6b3a074e66c00f17de2a75d91fa8a693301aa05840836df2a75d430
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 038c020a7ba0908e7cb86072ef31c4581a131c9fc311483c80b596b9b65f6c6d
[INFO] running `"docker" "start" "-a" "038c020a7ba0908e7cb86072ef31c4581a131c9fc311483c80b596b9b65f6c6d"`
[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: 1 warning emitted
[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] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.41s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bolero-5213d27270958ac7
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test slice_generator_test ... ok
[INFO] [stdout] test type_generator_test ... ok
[INFO] [stdout] test range_generator_test ... ok
[INFO] [stderr]    Doc-tests bolero
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - check (line 136) ... ok
[INFO] [stdout] test src/lib.rs - check (line 191) ... ok
[INFO] [stdout] test src/lib.rs - check (line 172) ... ok
[INFO] [stdout] test src/lib.rs - check (line 152) ... ok
[INFO] [stdout] test src/lib.rs - fuzz (line 69) ... ok
[INFO] [stdout] test src/lib.rs - fuzz (line 52) ... ok
[INFO] [stdout] test src/lib.rs - fuzz (line 110) ... ok
[INFO] [stdout] test src/lib.rs - fuzz (line 90) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "038c020a7ba0908e7cb86072ef31c4581a131c9fc311483c80b596b9b65f6c6d"`
[INFO] running `"docker" "rm" "-f" "038c020a7ba0908e7cb86072ef31c4581a131c9fc311483c80b596b9b65f6c6d"`
[INFO] [stdout] 038c020a7ba0908e7cb86072ef31c4581a131c9fc311483c80b596b9b65f6c6d