[INFO] fetching crate enum_dispatch 0.3.8...
[INFO] testing enum_dispatch-0.3.8 against 1.60.0 for beta-1.61-1
[INFO] extracting crate enum_dispatch 0.3.8 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate enum_dispatch 0.3.8 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 enum_dispatch 0.3.8
[INFO] finished tweaking crates.io crate enum_dispatch 0.3.8
[INFO] tweaked toml for crates.io crate enum_dispatch 0.3.8 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", 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] 7cc3fc6dd2ff0be37d05f1c9b6030f988c99b7d502d6816029cc0c168cf057b1
[INFO] running `Command { std: "docker" "start" "-a" "7cc3fc6dd2ff0be37d05f1c9b6030f988c99b7d502d6816029cc0c168cf057b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cc3fc6dd2ff0be37d05f1c9b6030f988c99b7d502d6816029cc0c168cf057b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cc3fc6dd2ff0be37d05f1c9b6030f988c99b7d502d6816029cc0c168cf057b1", kill_on_drop: false }`
[INFO] [stdout] 7cc3fc6dd2ff0be37d05f1c9b6030f988c99b7d502d6816029cc0c168cf057b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c9bdc7b497ce0605c204a73dde4e4d73e9032a69acbdf7998682665bd9175da
[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" "9c9bdc7b497ce0605c204a73dde4e4d73e9032a69acbdf7998682665bd9175da", kill_on_drop: false }`
[INFO] [stderr]    Compiling enum_dispatch v0.3.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.74s
[INFO] running `Command { std: "docker" "inspect" "9c9bdc7b497ce0605c204a73dde4e4d73e9032a69acbdf7998682665bd9175da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c9bdc7b497ce0605c204a73dde4e4d73e9032a69acbdf7998682665bd9175da", kill_on_drop: false }`
[INFO] [stdout] 9c9bdc7b497ce0605c204a73dde4e4d73e9032a69acbdf7998682665bd9175da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] 58b5e410cafa22b3b9b85194a61ff23302d774f647bcc1b212b8d6c1fb546ea8
[INFO] running `Command { std: "docker" "start" "-a" "58b5e410cafa22b3b9b85194a61ff23302d774f647bcc1b212b8d6c1fb546ea8", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.78
[INFO] [stderr]    Compiling enum_derive v0.1.7
[INFO] [stderr]    Compiling custom_derive v0.1.7
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling enum_dispatch v0.3.8 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> tests/arg_patterns.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[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 `enum_dispatch` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "58b5e410cafa22b3b9b85194a61ff23302d774f647bcc1b212b8d6c1fb546ea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58b5e410cafa22b3b9b85194a61ff23302d774f647bcc1b212b8d6c1fb546ea8", kill_on_drop: false }`
[INFO] [stdout] 58b5e410cafa22b3b9b85194a61ff23302d774f647bcc1b212b8d6c1fb546ea8