[INFO] fetching crate rustyping 2.2.0...
[INFO] testing rustyping-2.2.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate rustyping 2.2.0 into /workspace/builds/worker-25/source
[INFO] validating manifest of crates.io crate rustyping 2.2.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustyping 2.2.0
[INFO] finished tweaking crates.io crate rustyping 2.2.0
[INFO] tweaked toml for crates.io crate rustyping 2.2.0 written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] crate crates.io crate rustyping 2.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `strip` has been stabilized in the 1.58 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/cargo/reference/profiles.html#strip-option for more information about using this feature.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pnet_macros v0.28.0
[INFO] [stderr]   Downloaded pnet_transport v0.28.0
[INFO] [stderr]   Downloaded nix v0.21.0
[INFO] [stderr]   Downloaded ipnetwork v0.18.0
[INFO] [stderr]   Downloaded pnet_base v0.28.0
[INFO] [stderr]   Downloaded pnet_macros_support v0.28.0
[INFO] [stderr]   Downloaded pnet_datalink v0.28.0
[INFO] [stderr]   Downloaded pnet_sys v0.28.0
[INFO] [stderr]   Downloaded pnet v0.28.0
[INFO] [stderr]   Downloaded pnet_packet v0.28.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 386cb6b2e61d9cc100ffdd1a446e1fd7d61f4362106ee8d7668773c34b200cd9
[INFO] running `Command { std: "docker" "start" "-a" "386cb6b2e61d9cc100ffdd1a446e1fd7d61f4362106ee8d7668773c34b200cd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "386cb6b2e61d9cc100ffdd1a446e1fd7d61f4362106ee8d7668773c34b200cd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "386cb6b2e61d9cc100ffdd1a446e1fd7d61f4362106ee8d7668773c34b200cd9", kill_on_drop: false }`
[INFO] [stdout] 386cb6b2e61d9cc100ffdd1a446e1fd7d61f4362106ee8d7668773c34b200cd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8af99c295ab8043aaae39fcd22dde4f2e62738df68670eb939046ba8d315261b
[INFO] running `Command { std: "docker" "start" "-a" "8af99c295ab8043aaae39fcd22dde4f2e62738df68670eb939046ba8d315261b", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `strip` has been stabilized in the 1.58 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/cargo/reference/profiles.html#strip-option for more information about using this feature.
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling pnet_base v0.28.0
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling pnet v0.28.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling hsl v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling pnet_macros_support v0.28.0
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling pnet_sys v0.28.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling nix v0.21.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling ipnetwork v0.18.0
[INFO] [stderr]    Compiling slog-term v2.8.0
[INFO] [stderr]    Compiling pnet_datalink v0.28.0
[INFO] [stderr]    Compiling pnet_macros v0.28.0
[INFO] [stderr]    Compiling ctrlc v3.1.9
[INFO] [stderr]    Compiling pnet_packet v0.28.0
[INFO] [stderr]    Compiling pnet_transport v0.28.0
[INFO] [stderr]    Compiling rustyping v2.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(destructuring_assignment)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `destructuring_assignment` has been stable since 1.59.0 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 `rustyping` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "8af99c295ab8043aaae39fcd22dde4f2e62738df68670eb939046ba8d315261b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8af99c295ab8043aaae39fcd22dde4f2e62738df68670eb939046ba8d315261b", kill_on_drop: false }`
[INFO] [stdout] 8af99c295ab8043aaae39fcd22dde4f2e62738df68670eb939046ba8d315261b