[INFO] fetching crate mumble-protocol 0.4.1...
[INFO] testing mumble-protocol-0.4.1 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate mumble-protocol 0.4.1 into /workspace/builds/worker-24/source
[INFO] validating manifest of crates.io crate mumble-protocol 0.4.1 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mumble-protocol 0.4.1
[INFO] finished tweaking crates.io crate mumble-protocol 0.4.1
[INFO] tweaked toml for crates.io crate mumble-protocol 0.4.1 written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] crate crates.io crate mumble-protocol 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smallvec v1.5.1
[INFO] [stderr]   Downloaded tokio-util v0.6.0
[INFO] [stderr]   Downloaded bytes v1.0.0
[INFO] [stderr]   Downloaded protobuf-codegen v2.18.1
[INFO] [stderr]   Downloaded protobuf v2.18.1
[INFO] [stderr]   Downloaded tokio v1.0.1
[INFO] [stderr]   Downloaded tokio-stream v0.1.0
[INFO] [stderr]   Downloaded async-stream v0.3.0
[INFO] [stderr]   Downloaded protobuf-codegen-pure v2.18.1
[INFO] [stderr]   Downloaded async-stream-impl v0.3.0
[INFO] [stderr]   Downloaded syn v1.0.56
[INFO] [stderr]   Downloaded mio v0.7.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2328aba5ce954878794465adf8dca5a4eefafb53c21d251c9eb9a523fc831a21
[INFO] running `Command { std: "docker" "start" "-a" "2328aba5ce954878794465adf8dca5a4eefafb53c21d251c9eb9a523fc831a21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2328aba5ce954878794465adf8dca5a4eefafb53c21d251c9eb9a523fc831a21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2328aba5ce954878794465adf8dca5a4eefafb53c21d251c9eb9a523fc831a21", kill_on_drop: false }`
[INFO] [stdout] 2328aba5ce954878794465adf8dca5a4eefafb53c21d251c9eb9a523fc831a21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b32f9dfcc12b475c165ec6d0c6fe0f47df18dba73e0e0cc5785c71f00345afa9
[INFO] running `Command { std: "docker" "start" "-a" "b32f9dfcc12b475c165ec6d0c6fe0f47df18dba73e0e0cc5785c71f00345afa9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling protobuf v2.18.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling smallvec v1.5.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling pin-project-lite v0.2.0
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling bytes v1.0.0
[INFO] [stderr]    Compiling openssl v0.10.32
[INFO] [stderr]    Compiling futures-sink v0.3.8
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling tokio v1.0.1
[INFO] [stderr]    Compiling openssl-sys v0.9.60
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling parking_lot_core v0.8.2
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling mio v0.7.6
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling protobuf-codegen v2.18.1
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling protobuf-codegen-pure v2.18.1
[INFO] [stderr]    Compiling mumble-protocol v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.0
[INFO] [stderr]    Compiling async-stream v0.3.0
[INFO] [stderr]    Compiling tokio-stream v0.1.0
[INFO] [stderr]    Compiling tokio-util v0.6.0
[INFO] [stdout] error: custom inner attributes are unstable
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/mumble-protocol-df557778a58813f5/out/proto/Mumble.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![rustfmt::skip]
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[deny(soft_unstable)]` on by default
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mumble-protocol` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "b32f9dfcc12b475c165ec6d0c6fe0f47df18dba73e0e0cc5785c71f00345afa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b32f9dfcc12b475c165ec6d0c6fe0f47df18dba73e0e0cc5785c71f00345afa9", kill_on_drop: false }`
[INFO] [stdout] b32f9dfcc12b475c165ec6d0c6fe0f47df18dba73e0e0cc5785c71f00345afa9