[INFO] fetching crate unros-core 0.1.2...
[INFO] testing unros-core-0.1.2 against 1.91.0 for beta-1.92-2
[INFO] extracting crate unros-core 0.1.2 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate unros-core 0.1.2
[INFO] finished tweaking crates.io crate unros-core 0.1.2
[INFO] tweaked toml for crates.io crate unros-core 0.1.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate unros-core 0.1.2 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 327 packages to latest compatible versions
[INFO] [stderr]       Adding config v0.14.1 (available: v0.15.18)
[INFO] [stderr]       Adding console-subscriber v0.2.0 (available: v0.5.0)
[INFO] [stderr]       Adding fern v0.6.2 (available: v0.7.1)
[INFO] [stderr]       Adding ffmpeg-sidecar v1.2.0 (available: v2.2.0)
[INFO] [stderr]       Adding image v0.24.9 (available: v0.25.8)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding sysinfo v0.30.13 (available: v0.37.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ctrlc v3.5.1
[INFO] [stderr]   Downloaded colored v1.9.4
[INFO] [stderr]   Downloaded indenter v0.3.4
[INFO] [stderr]   Downloaded rust-ini v0.20.0
[INFO] [stderr]   Downloaded console-api v0.6.0
[INFO] [stderr]   Downloaded owo-colors v4.2.3
[INFO] [stderr]   Downloaded eyre v0.6.12
[INFO] [stderr]   Downloaded console-subscriber v0.2.0
[INFO] [stderr]   Downloaded ffmpeg-sidecar v1.2.0
[INFO] [stderr]   Downloaded yaml-rust2 v0.8.1
[INFO] [stderr]   Downloaded hdrhistogram v7.5.4
[INFO] [stderr]   Downloaded fern v0.6.2
[INFO] [stderr]   Downloaded nix v0.30.1
[INFO] [stderr]   Downloaded color-eyre v0.6.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a007b777d2ad4148bb63eb1548116fd10c9b8d6434fd5f94a0afae291352669
[INFO] running `Command { std: "docker" "start" "-a" "4a007b777d2ad4148bb63eb1548116fd10c9b8d6434fd5f94a0afae291352669", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a007b777d2ad4148bb63eb1548116fd10c9b8d6434fd5f94a0afae291352669", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a007b777d2ad4148bb63eb1548116fd10c9b8d6434fd5f94a0afae291352669", kill_on_drop: false }`
[INFO] [stdout] 4a007b777d2ad4148bb63eb1548116fd10c9b8d6434fd5f94a0afae291352669
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] baf2c458aceec7cbcab5e557ffd955a1836f73983939936b32a58f20e1f19fbc
[INFO] running `Command { std: "docker" "start" "-a" "baf2c458aceec7cbcab5e557ffd955a1836f73983939936b32a58f20e1f19fbc", kill_on_drop: false }`
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[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling ctrlc v3.5.1
[INFO] [stderr]    Compiling image v0.24.9
[INFO] [stderr]    Compiling fern v0.6.2
[INFO] [stderr]    Compiling color-eyre v0.6.5
[INFO] [stderr]    Compiling hyper-timeout v0.4.1
[INFO] [stderr]    Compiling sysinfo v0.30.13
[INFO] [stderr]    Compiling ffmpeg-sidecar v1.2.0
[INFO] [stderr]    Compiling tonic v0.10.2
[INFO] [stderr]    Compiling console-api v0.6.0
[INFO] [stderr]    Compiling console-subscriber v0.2.0
[INFO] [stderr]    Compiling unros-core v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | / #![feature(
[INFO] [stdout] 18 | |     once_cell_try,
[INFO] [stdout] 19 | |     result_flattening,
[INFO] [stdout] 20 | |     div_duration
[INFO] [stdout] 21 | | )]
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `div_duration` has been stable since 1.80.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     div_duration
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `result_flattening` has been stable since 1.89.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     result_flattening,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `std::panic::PanicInfo`: use `PanicHookInfo` instead
[INFO] [stdout]   --> src/logging/eyre.rs:15:40
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn display(&self, pi: &std::panic::PanicInfo<'_>, f: &mut fmt::Formatter<'_>) -> fmt::Result {
[INFO] [stdout]    |                                        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `unros-core` (lib) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "baf2c458aceec7cbcab5e557ffd955a1836f73983939936b32a58f20e1f19fbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "baf2c458aceec7cbcab5e557ffd955a1836f73983939936b32a58f20e1f19fbc", kill_on_drop: false }`
[INFO] [stdout] baf2c458aceec7cbcab5e557ffd955a1836f73983939936b32a58f20e1f19fbc