[INFO] fetching crate fuzzcheck_mutators_derive 0.6.0...
[INFO] testing fuzzcheck_mutators_derive-0.6.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate fuzzcheck_mutators_derive 0.6.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate fuzzcheck_mutators_derive 0.6.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fuzzcheck_mutators_derive 0.6.0
[INFO] finished tweaking crates.io crate fuzzcheck_mutators_derive 0.6.0
[INFO] tweaked toml for crates.io crate fuzzcheck_mutators_derive 0.6.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e39c652d5b7bda56c44861bea628889f7dd5cd107f0f0a30b83abfad9665ec61
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e39c652d5b7bda56c44861bea628889f7dd5cd107f0f0a30b83abfad9665ec61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e39c652d5b7bda56c44861bea628889f7dd5cd107f0f0a30b83abfad9665ec61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e39c652d5b7bda56c44861bea628889f7dd5cd107f0f0a30b83abfad9665ec61", kill_on_drop: false }`
[INFO] [stdout] e39c652d5b7bda56c44861bea628889f7dd5cd107f0f0a30b83abfad9665ec61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 542b645eb0b67d9f3722ae163614479a58a93520de79d0f70bf4fb25e1a191ee
[INFO] running `Command { std: "docker" "start" "-a" "542b645eb0b67d9f3722ae163614479a58a93520de79d0f70bf4fb25e1a191ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling decent-synquote-alternative v0.3.0
[INFO] [stderr]    Compiling fuzzcheck_mutators_derive v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.56s
[INFO] running `Command { std: "docker" "inspect" "542b645eb0b67d9f3722ae163614479a58a93520de79d0f70bf4fb25e1a191ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "542b645eb0b67d9f3722ae163614479a58a93520de79d0f70bf4fb25e1a191ee", kill_on_drop: false }`
[INFO] [stdout] 542b645eb0b67d9f3722ae163614479a58a93520de79d0f70bf4fb25e1a191ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 03c174783fbc8d02d72d42c6fa6fbf1daefe428201b68092967ca67e0eb8a01c
[INFO] running `Command { std: "docker" "start" "-a" "03c174783fbc8d02d72d42c6fa6fbf1daefe428201b68092967ca67e0eb8a01c", kill_on_drop: false }`
[INFO] [stderr]    Compiling fuzzcheck_mutators_derive v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "03c174783fbc8d02d72d42c6fa6fbf1daefe428201b68092967ca67e0eb8a01c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03c174783fbc8d02d72d42c6fa6fbf1daefe428201b68092967ca67e0eb8a01c", kill_on_drop: false }`
[INFO] [stdout] 03c174783fbc8d02d72d42c6fa6fbf1daefe428201b68092967ca67e0eb8a01c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2b11dbf0f3f0410d1c62feae63b67ecf4ecedd8711864f988161954763afa4eb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2b11dbf0f3f0410d1c62feae63b67ecf4ecedd8711864f988161954763afa4eb", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fuzzcheck_mutators_derive-55c80bfc7177a6dd)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test enums::test::test_make_enum_mutator_helper_types ... ok
[INFO] [stdout] test enums::test::test_make_enum_n_payload_structure ... ok
[INFO] [stdout] test tuples::test::test_impl_tuple_structure_trait_generics ... ok
[INFO] [stdout] test tuples::test::test_declare_tuple_mutator ... ok
[INFO] [stdout] test tuples::test::test_declare_tuple_mutator_helper_types ... ok
[INFO] [stdout] test tuples::test::test_impl_default_mutator_for_tuple ... ok
[INFO] [stdout] test enums::test::test_impl_enum_structure_trait_3 ... ok
[INFO] [stdout] test enums::test::test_impl_basic_enum_structure ... ok
[INFO] [stdout] test enums::test::test_impl_enum_structure_trait_2 ... ok
[INFO] [stdout] test tuples::test::test_impl_tuple_structure_trait_one_field_generics ... ok
[INFO] [stdout] test enums::test::test_make_enum_n_payload_mutator ... ok
[INFO] [stdout] test enums::test::test_impl_default_mutator_for_basic_enum ... ok
[INFO] [stdout] test enums::test::test_impl_enum_structure_trait ... ok
[INFO] [stdout] test tuples::test::test_make_tuple_type_structure ... ok
[INFO] [stdout] test enums::test::test_impl_mutator ... ok
[INFO] [stdout] test tuples::test::test_impl_default_mutator_two_fields ... ok
[INFO] [stdout] test tuples::test::test_impl_mutator_trait ... ok
[INFO] [stdout] test enums::test::test_impl_default_mutator_for_enum ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fuzzcheck_mutators_derive
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2b11dbf0f3f0410d1c62feae63b67ecf4ecedd8711864f988161954763afa4eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b11dbf0f3f0410d1c62feae63b67ecf4ecedd8711864f988161954763afa4eb", kill_on_drop: false }`
[INFO] [stdout] 2b11dbf0f3f0410d1c62feae63b67ecf4ecedd8711864f988161954763afa4eb