[INFO] fetching crate fuzzcheck_mutators_derive 0.7.0... [INFO] testing fuzzcheck_mutators_derive-0.7.0 against beta-2021-09-08 for beta-1.56-1 [INFO] extracting crate fuzzcheck_mutators_derive 0.7.0 into /workspace/builds/worker-111/source [INFO] validating manifest of crates.io crate fuzzcheck_mutators_derive 0.7.0 on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate fuzzcheck_mutators_derive 0.7.0 [INFO] finished tweaking crates.io crate fuzzcheck_mutators_derive 0.7.0 [INFO] tweaked toml for crates.io crate fuzzcheck_mutators_derive 0.7.0 written to /workspace/builds/worker-111/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 710ce11c99c0cb38137de17b1637d86251fbafbb0d81a5f05baa1932d9820873 [INFO] running `Command { std: "docker" "start" "-a" "710ce11c99c0cb38137de17b1637d86251fbafbb0d81a5f05baa1932d9820873", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "710ce11c99c0cb38137de17b1637d86251fbafbb0d81a5f05baa1932d9820873", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "710ce11c99c0cb38137de17b1637d86251fbafbb0d81a5f05baa1932d9820873", kill_on_drop: false }` [INFO] [stdout] 710ce11c99c0cb38137de17b1637d86251fbafbb0d81a5f05baa1932d9820873 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6bf3ff965a3678c9b5e4019f38079a3e79a5df5a680efcdc5eeb0c7cb26a1220 [INFO] running `Command { std: "docker" "start" "-a" "6bf3ff965a3678c9b5e4019f38079a3e79a5df5a680efcdc5eeb0c7cb26a1220", kill_on_drop: false }` [INFO] [stderr] Compiling decent-synquote-alternative v0.4.0 [INFO] [stderr] Compiling fuzzcheck_mutators_derive v0.7.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.95s [INFO] running `Command { std: "docker" "inspect" "6bf3ff965a3678c9b5e4019f38079a3e79a5df5a680efcdc5eeb0c7cb26a1220", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6bf3ff965a3678c9b5e4019f38079a3e79a5df5a680efcdc5eeb0c7cb26a1220", kill_on_drop: false }` [INFO] [stdout] 6bf3ff965a3678c9b5e4019f38079a3e79a5df5a680efcdc5eeb0c7cb26a1220 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 189e507ae273375c4d60d6a952cafb9fa7875fe15d556e87cc96947c11a8f74c [INFO] running `Command { std: "docker" "start" "-a" "189e507ae273375c4d60d6a952cafb9fa7875fe15d556e87cc96947c11a8f74c", kill_on_drop: false }` [INFO] [stderr] Compiling fuzzcheck_mutators_derive v0.7.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.05s [INFO] running `Command { std: "docker" "inspect" "189e507ae273375c4d60d6a952cafb9fa7875fe15d556e87cc96947c11a8f74c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "189e507ae273375c4d60d6a952cafb9fa7875fe15d556e87cc96947c11a8f74c", kill_on_drop: false }` [INFO] [stdout] 189e507ae273375c4d60d6a952cafb9fa7875fe15d556e87cc96947c11a8f74c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 1a1b592328ba5b963194a641420e0b5db06bbf0989d27a072353477505d72cbb [INFO] running `Command { std: "docker" "start" "-a" "1a1b592328ba5b963194a641420e0b5db06bbf0989d27a072353477505d72cbb", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/fuzzcheck_mutators_derive-bd94fcff556982eb) [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] [stderr] Doc-tests fuzzcheck_mutators_derive [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test src/lib.rs - make_mutator (line 102) ... ignored [INFO] [stdout] test src/lib.rs - make_mutator (line 56) ... ignored [INFO] [stdout] test src/lib.rs - make_mutator (line 80) ... ignored [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "1a1b592328ba5b963194a641420e0b5db06bbf0989d27a072353477505d72cbb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1a1b592328ba5b963194a641420e0b5db06bbf0989d27a072353477505d72cbb", kill_on_drop: false }` [INFO] [stdout] 1a1b592328ba5b963194a641420e0b5db06bbf0989d27a072353477505d72cbb