[INFO] fetching crate postcard-rpc 0.12.1...
[INFO] testing postcard-rpc-0.12.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate postcard-rpc 0.12.1 into /workspace/builds/worker-5-tc2/source
[INFO] removed /workspace/builds/worker-5-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate postcard-rpc 0.12.1
[INFO] finished tweaking crates.io crate postcard-rpc 0.12.1
[INFO] tweaked toml for crates.io crate postcard-rpc 0.12.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate postcard-rpc 0.12.1 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 postcard-rpc 0.12.1 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] 43c43cf547a515a308804ba77008e8bb68aff5d69302835421d838d180ccdf5d
[INFO] running `Command { std: "docker" "start" "-a" "43c43cf547a515a308804ba77008e8bb68aff5d69302835421d838d180ccdf5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43c43cf547a515a308804ba77008e8bb68aff5d69302835421d838d180ccdf5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43c43cf547a515a308804ba77008e8bb68aff5d69302835421d838d180ccdf5d", kill_on_drop: false }`
[INFO] [stdout] 43c43cf547a515a308804ba77008e8bb68aff5d69302835421d838d180ccdf5d
[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] b4da4bc5a9f678f28dd1151ef05e6b8c4c780cc03ec1b478ea5be982b3d35c85
[INFO] running `Command { std: "docker" "start" "-a" "b4da4bc5a9f678f28dd1151ef05e6b8c4c780cc03ec1b478ea5be982b3d35c85", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.87
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling portable-atomic v1.9.0
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling heapless v0.9.1
[INFO] [stderr]    Compiling cobs v0.2.3
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling postcard-derive v0.2.1
[INFO] [stderr]    Compiling postcard-schema v0.2.2
[INFO] [stderr]    Compiling postcard v1.0.10
[INFO] [stderr]    Compiling postcard-rpc v0.12.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.70s
[INFO] running `Command { std: "docker" "inspect" "b4da4bc5a9f678f28dd1151ef05e6b8c4c780cc03ec1b478ea5be982b3d35c85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4da4bc5a9f678f28dd1151ef05e6b8c4c780cc03ec1b478ea5be982b3d35c85", kill_on_drop: false }`
[INFO] [stdout] b4da4bc5a9f678f28dd1151ef05e6b8c4c780cc03ec1b478ea5be982b3d35c85
[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] 75186aef8a012ee0b6c64491c8adb80b2239d5e551012e2828ca8be97aaf0064
[INFO] running `Command { std: "docker" "start" "-a" "75186aef8a012ee0b6c64491c8adb80b2239d5e551012e2828ca8be97aaf0064", kill_on_drop: false }`
[INFO] [stderr]    Compiling postcard-rpc v0.12.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `postcard_schema::schema::owned`
[INFO] [stdout]    --> src/macros.rs:437:35
[INFO] [stdout]     |
[INFO] [stdout] 437 |     use postcard_schema::{schema::owned::OwnedNamedType, Schema};
[INFO] [stdout]     |                                   ^^^^^ could not find `owned` in `schema`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/postcard-schema-0.2.2/src/schema/mod.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout]  23 | #[cfg(any(feature = "use-std", feature = "alloc"))]
[INFO] [stdout]     |          ---------------------------------------- the item is gated here
[INFO] [stdout]  24 | pub mod owned;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find `host_client` in `crate`
[INFO] [stdout]    --> src/test_utils.rs:6:12
[INFO] [stdout]     |
[INFO] [stdout]   6 | use crate::host_client::util::Stopper;
[INFO] [stdout]     |            ^^^^^^^^^^^ could not find `host_client` in the crate root
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/lib.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 139 | #[cfg(feature = "use-std")]
[INFO] [stdout]     |       ------------------- the item is gated behind the `use-std` feature
[INFO] [stdout] 140 | pub mod host_client;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `postcard_schema::schema::owned`
[INFO] [stdout]    --> src/uniques.rs:780:18
[INFO] [stdout]     |
[INFO] [stdout] 780 |         schema::{owned::OwnedNamedType, NamedType},
[INFO] [stdout]     |                  ^^^^^ could not find `owned` in `schema`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/postcard-schema-0.2.2/src/schema/mod.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout]  23 | #[cfg(any(feature = "use-std", feature = "alloc"))]
[INFO] [stdout]     |          ---------------------------------------- the item is gated here
[INFO] [stdout]  24 | pub mod owned;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate::host_client`
[INFO] [stdout]    --> src/test_utils.rs:8:5
[INFO] [stdout]     |
[INFO] [stdout]   8 |     host_client::{HostClient, RpcFrame, WireRx, WireSpawn, WireTx},
[INFO] [stdout]     |     ^^^^^^^^^^^ could not find `host_client` in the crate root
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/lib.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 139 | #[cfg(feature = "use-std")]
[INFO] [stdout]     |       ------------------- the item is gated behind the `use-std` feature
[INFO] [stdout] 140 | pub mod host_client;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `tokio` in this scope
[INFO] [stdout]   --> src/test_utils.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use tokio::{
[INFO] [stdout]    |     ^^^^^ use of unresolved module or unlinked crate `tokio`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `tokio`, use `cargo add tokio` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tokio`
[INFO] [stdout]   --> src/test_utils.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use tokio::{
[INFO] [stdout]    |     ^^^^^ use of unresolved module or unlinked crate `tokio`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `tokio`, use `cargo add tokio` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `tokio` in this scope
[INFO] [stdout]    --> src/test_utils.rs:175:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |         tokio::task::spawn(fut);
[INFO] [stdout]     |         ^^^^^ use of unresolved module or unlinked crate `tokio`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `tokio`, use `cargo add tokio` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `to_stdvec` in crate `postcard`
[INFO] [stdout]    --> src/test_utils.rs:66:29
[INFO] [stdout]     |
[INFO] [stdout]  66 |               body: postcard::to_stdvec(data).unwrap(),
[INFO] [stdout]     |                               ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/postcard-1.0.10/src/ser/mod.rs:154:1
[INFO] [stdout]     |
[INFO] [stdout] 154 | / pub fn to_vec<T, const B: usize>(value: &T) -> Result<Vec<u8, B>>
[INFO] [stdout] 155 | | where
[INFO] [stdout] 156 | |     T: Serialize + ?Sized,
[INFO] [stdout]     | |__________________________- similarly named function `to_vec` defined here
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/postcard-1.0.10/src/lib.rs:104:22
[INFO] [stdout]     |
[INFO] [stdout] 103 | #[cfg(feature = "use-std")]
[INFO] [stdout]     |       ------------------- the item is gated behind the `use-std` feature
[INFO] [stdout] 104 | pub use ser::{to_io, to_stdvec, to_stdvec_cobs};
[INFO] [stdout]     |                      ^^^^^^^^^
[INFO] [stdout] help: a function with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout]  66 -             body: postcard::to_stdvec(data).unwrap(),
[INFO] [stdout]  66 +             body: postcard::to_vec(data).unwrap(),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `to_stdvec` in crate `postcard`
[INFO] [stdout]    --> src/test_utils.rs:88:29
[INFO] [stdout]     |
[INFO] [stdout]  88 |               body: postcard::to_stdvec(data).unwrap(),
[INFO] [stdout]     |                               ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/postcard-1.0.10/src/ser/mod.rs:154:1
[INFO] [stdout]     |
[INFO] [stdout] 154 | / pub fn to_vec<T, const B: usize>(value: &T) -> Result<Vec<u8, B>>
[INFO] [stdout] 155 | | where
[INFO] [stdout] 156 | |     T: Serialize + ?Sized,
[INFO] [stdout]     | |__________________________- similarly named function `to_vec` defined here
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/postcard-1.0.10/src/lib.rs:104:22
[INFO] [stdout]     |
[INFO] [stdout] 103 | #[cfg(feature = "use-std")]
[INFO] [stdout]     |       ------------------- the item is gated behind the `use-std` feature
[INFO] [stdout] 104 | pub use ser::{to_io, to_stdvec, to_stdvec_cobs};
[INFO] [stdout]     |                      ^^^^^^^^^
[INFO] [stdout] help: a function with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout]  88 -             body: postcard::to_stdvec(data).unwrap(),
[INFO] [stdout]  88 +             body: postcard::to_vec(data).unwrap(),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `postcard-rpc` (lib test) due to 9 previous errors
[INFO] running `Command { std: "docker" "inspect" "75186aef8a012ee0b6c64491c8adb80b2239d5e551012e2828ca8be97aaf0064", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75186aef8a012ee0b6c64491c8adb80b2239d5e551012e2828ca8be97aaf0064", kill_on_drop: false }`
[INFO] [stdout] 75186aef8a012ee0b6c64491c8adb80b2239d5e551012e2828ca8be97aaf0064
