[INFO] fetching crate fuzztest 0.1.1...
[INFO] testing fuzztest-0.1.1 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate fuzztest 0.1.1 into /workspace/builds/worker-86/source
[INFO] validating manifest of crates.io crate fuzztest 0.1.1 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fuzztest 0.1.1
[INFO] finished tweaking crates.io crate fuzztest 0.1.1
[INFO] tweaked toml for crates.io crate fuzztest 0.1.1 written to /workspace/builds/worker-86/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arbitrary v0.2.0
[INFO] [stderr]   Downloaded honggfuzz v0.5.45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4dcf878944ff126f625f66cf36f5a83d969c0c9ff2ccef69f76cb6d542d0e8f5
[INFO] running `Command { std: "docker" "start" "-a" "4dcf878944ff126f625f66cf36f5a83d969c0c9ff2ccef69f76cb6d542d0e8f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4dcf878944ff126f625f66cf36f5a83d969c0c9ff2ccef69f76cb6d542d0e8f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dcf878944ff126f625f66cf36f5a83d969c0c9ff2ccef69f76cb6d542d0e8f5", kill_on_drop: false }`
[INFO] [stdout] 4dcf878944ff126f625f66cf36f5a83d969c0c9ff2ccef69f76cb6d542d0e8f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c78687cbb0e2007d73ac4b760727a363ba33c655203dac0d84695bdf870f7e57
[INFO] running `Command { std: "docker" "start" "-a" "c78687cbb0e2007d73ac4b760727a363ba33c655203dac0d84695bdf870f7e57", kill_on_drop: false }`
[INFO] [stderr]    Compiling honggfuzz v0.5.45
[INFO] [stderr]    Compiling arbitrary v0.2.0
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling fuzztest v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(use_extern_macros, decl_macro)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `use_extern_macros` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fuzztest` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c78687cbb0e2007d73ac4b760727a363ba33c655203dac0d84695bdf870f7e57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c78687cbb0e2007d73ac4b760727a363ba33c655203dac0d84695bdf870f7e57", kill_on_drop: false }`
[INFO] [stdout] c78687cbb0e2007d73ac4b760727a363ba33c655203dac0d84695bdf870f7e57
