[INFO] fetching crate scx_stats 1.1.0...
[INFO] testing scx_stats-1.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate scx_stats 1.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate scx_stats 1.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate scx_stats 1.1.0
[INFO] tweaked toml for crates.io crate scx_stats 1.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate scx_stats 1.1.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate scx_stats 1.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3f2adf3083f6b681cfac5a89a4809e061f9247e8f4021394f384ade06d94f4f
[INFO] running `Command { std: "docker" "start" "-a" "a3f2adf3083f6b681cfac5a89a4809e061f9247e8f4021394f384ade06d94f4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3f2adf3083f6b681cfac5a89a4809e061f9247e8f4021394f384ade06d94f4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3f2adf3083f6b681cfac5a89a4809e061f9247e8f4021394f384ade06d94f4f", kill_on_drop: false }`
[INFO] [stdout] a3f2adf3083f6b681cfac5a89a4809e061f9247e8f4021394f384ade06d94f4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a12f082282e82756afb9c431735c5cfbedf0fd2bb6183c6a3f904ce12f0d7e73
[INFO] running `Command { std: "docker" "start" "-a" "a12f082282e82756afb9c431735c5cfbedf0fd2bb6183c6a3f904ce12f0d7e73", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling scx_stats v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.62s
[INFO] running `Command { std: "docker" "inspect" "a12f082282e82756afb9c431735c5cfbedf0fd2bb6183c6a3f904ce12f0d7e73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a12f082282e82756afb9c431735c5cfbedf0fd2bb6183c6a3f904ce12f0d7e73", kill_on_drop: false }`
[INFO] [stdout] a12f082282e82756afb9c431735c5cfbedf0fd2bb6183c6a3f904ce12f0d7e73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24b8138992886b510e9dfb8a8bbc69fede69dd3cda84c84042fdeaf35ffa71e4
[INFO] running `Command { std: "docker" "start" "-a" "24b8138992886b510e9dfb8a8bbc69fede69dd3cda84c84042fdeaf35ffa71e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-conv v0.2.0
[INFO] [stderr]    Compiling colored v3.1.1
[INFO] [stderr]    Compiling scx_stats v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling time-macros v0.2.27
[INFO] [stderr]    Compiling time v0.3.47
[INFO] [stderr]    Compiling simple_logger v5.2.0
[INFO] [stdout] error[E0432]: unresolved import `scx_stats_derive`
[INFO] [stdout]  --> examples/client.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use scx_stats_derive::Stats;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `scx_stats_derive`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `scx_stats_derive`, use `cargo add scx_stats_derive` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `scx_stats_derive`
[INFO] [stdout]  --> examples/server.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use scx_stats_derive::Stats;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `scx_stats_derive`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `scx_stats_derive`, use `cargo add scx_stats_derive` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `stat` in this scope
[INFO] [stdout]  --> examples/stats_defs.rs.h:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[stat(desc = "domain statistics", _om_prefix="d_", _om_label="domain_name")]
[INFO] [stdout]   |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `stat` in this scope
[INFO] [stdout]  --> examples/stats_defs.rs.h:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 |     #[stat(desc = "an event counter")]
[INFO] [stdout]   |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `stat` in this scope
[INFO] [stdout]  --> examples/stats_defs.rs.h:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[stat(desc = "domain statistics", _om_prefix="d_", _om_label="domain_name")]
[INFO] [stdout]   |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `stat` in this scope
[INFO] [stdout]  --> examples/stats_defs.rs.h:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 |     #[stat(desc = "an event counter")]
[INFO] [stdout]   |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `stat` in this scope
[INFO] [stdout]   --> examples/stats_defs.rs.h:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 |     #[stat(desc = "a gauge number")]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `stat` in this scope
[INFO] [stdout]   --> examples/stats_defs.rs.h:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 |     #[stat(desc = "a gauge number")]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `stat` in this scope
[INFO] [stdout]   --> examples/stats_defs.rs.h:16:3
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[stat(desc = "cluster statistics", top)]
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `stat` in this scope
[INFO] [stdout]   --> examples/stats_defs.rs.h:16:3
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[stat(desc = "cluster statistics", top)]
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `stat` in this scope
[INFO] [stdout]   --> examples/stats_defs.rs.h:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 |     #[stat(desc = "update timestamp")]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `stat` in this scope
[INFO] [stdout]   --> examples/stats_defs.rs.h:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 |     #[stat(desc = "update timestamp")]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `stat` in this scope
[INFO] [stdout]   --> examples/stats_defs.rs.h:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 |     #[stat(desc = "some bitmap we want to report", _om_skip)]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `stat` in this scope
[INFO] [stdout]   --> examples/stats_defs.rs.h:23:7
[INFO] [stdout]    |
[INFO] [stdout] 23 |     #[stat(desc = "domain statistics")]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `stat` in this scope
[INFO] [stdout]   --> examples/stats_defs.rs.h:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 |     #[stat(desc = "some bitmap we want to report", _om_skip)]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `stat` in this scope
[INFO] [stdout]   --> examples/stats_defs.rs.h:23:7
[INFO] [stdout]    |
[INFO] [stdout] 23 |     #[stat(desc = "domain statistics")]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no associated function or constant named `meta` found for struct `ClusterStats` in the current scope
[INFO] [stdout]   --> examples/server.rs:51:33
[INFO] [stdout]    |
[INFO] [stdout] 51 |         .add_meta(ClusterStats::meta())
[INFO] [stdout]    |                                 ^^^^ associated function or constant not found in `ClusterStats`
[INFO] [stdout]    |
[INFO] [stdout]   ::: examples/stats_defs.rs.h:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct ClusterStats {
[INFO] [stdout]    | ------------------- associated function or constant `meta` not found for this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `meta`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `scx_stats::Meta`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no associated function or constant named `meta` found for struct `DomainStats` in the current scope
[INFO] [stdout]   --> examples/server.rs:52:32
[INFO] [stdout]    |
[INFO] [stdout] 52 |         .add_meta(DomainStats::meta())
[INFO] [stdout]    |                                ^^^^ associated function or constant not found in `DomainStats`
[INFO] [stdout]    |
[INFO] [stdout]   ::: examples/stats_defs.rs.h:7:1
[INFO] [stdout]    |
[INFO] [stdout]  7 | struct DomainStats {
[INFO] [stdout]    | ------------------ associated function or constant `meta` not found for this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `meta`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `scx_stats::Meta`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `to_json` exists for struct `ClusterStats`, but its trait bounds were not satisfied
[INFO] [stdout]    --> examples/server.rs:61:23
[INFO] [stdout]     |
[INFO] [stdout]  61 |                 stats.to_json()
[INFO] [stdout]     |                       ^^^^^^^ method cannot be called on `ClusterStats` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout]    ::: examples/stats_defs.rs.h:17:1
[INFO] [stdout]     |
[INFO] [stdout]  17 | struct ClusterStats {
[INFO] [stdout]     | ------------------- method `to_json` not found for this struct because it doesn't satisfy `ClusterStats: scx_stats::Meta` or `ClusterStats: scx_stats::ToJson`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `ClusterStats: scx_stats::Meta`
[INFO] [stdout]             which is required by `ClusterStats: scx_stats::ToJson`
[INFO] [stdout] note: the trait `scx_stats::Meta` must be implemented
[INFO] [stdout]    --> src/stats.rs:365:1
[INFO] [stdout]     |
[INFO] [stdout] 365 | pub trait Meta {
[INFO] [stdout]     | ^^^^^^^^^^^^^^
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following trait defines an item `to_json`, perhaps you need to implement it:
[INFO] [stdout]             candidate #1: `scx_stats::ToJson`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scx_stats` (example "server") due to 11 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scx_stats` (example "client") due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "24b8138992886b510e9dfb8a8bbc69fede69dd3cda84c84042fdeaf35ffa71e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24b8138992886b510e9dfb8a8bbc69fede69dd3cda84c84042fdeaf35ffa71e4", kill_on_drop: false }`
[INFO] [stdout] 24b8138992886b510e9dfb8a8bbc69fede69dd3cda84c84042fdeaf35ffa71e4
