[INFO] fetching crate flem 0.6.2...
[INFO] testing flem-0.6.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate flem 0.6.2 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate flem 0.6.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate flem 0.6.2
[INFO] tweaked toml for crates.io crate flem 0.6.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate flem 0.6.2 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate flem 0.6.2 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-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c7badc5f909211df6850b9a87c6b322495a6fc1e968a1fc15e8162f60c19db83
[INFO] running `Command { std: "docker" "start" "-a" "c7badc5f909211df6850b9a87c6b322495a6fc1e968a1fc15e8162f60c19db83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7badc5f909211df6850b9a87c6b322495a6fc1e968a1fc15e8162f60c19db83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7badc5f909211df6850b9a87c6b322495a6fc1e968a1fc15e8162f60c19db83", kill_on_drop: false }`
[INFO] [stdout] c7badc5f909211df6850b9a87c6b322495a6fc1e968a1fc15e8162f60c19db83
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99de19a39a7b156bcdc488756d555c97f1510dd89fa8f2a23848b9b22c05a6e0
[INFO] running `Command { std: "docker" "start" "-a" "99de19a39a7b156bcdc488756d555c97f1510dd89fa8f2a23848b9b22c05a6e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling flem v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "99de19a39a7b156bcdc488756d555c97f1510dd89fa8f2a23848b9b22c05a6e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99de19a39a7b156bcdc488756d555c97f1510dd89fa8f2a23848b9b22c05a6e0", kill_on_drop: false }`
[INFO] [stdout] 99de19a39a7b156bcdc488756d555c97f1510dd89fa8f2a23848b9b22c05a6e0
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 969e18a2a3bddad10ef8a8b2b4a8c8034123804a9325821092a282d45707a38c
[INFO] running `Command { std: "docker" "start" "-a" "969e18a2a3bddad10ef8a8b2b4a8c8034123804a9325821092a282d45707a38c", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling heapless v0.7.16
[INFO] [stderr]    Compiling flem v0.6.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `flem::traits::Channel`
[INFO] [stdout]   --> examples/software_host_simple.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout]  4 |     traits::Channel
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ no `Channel` in `traits`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> /opt/rustwide/workdir/src/traits.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[cfg(feature = "std")]
[INFO] [stdout]    |       --------------- the item is gated behind the `std` feature
[INFO] [stdout] 27 | pub trait Channel<const T: usize>: Sized {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0223]: ambiguous associated type
[INFO] [stdout]   --> examples/software_host_simple.rs:42:58
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn connect(&mut self, device: &String) -> Result<(), Self::Error> {
[INFO] [stdout]    |                                                          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use fully-qualified syntax
[INFO] [stdout]    |
[INFO] [stdout] 42 -     fn connect(&mut self, device: &String) -> Result<(), Self::Error> {
[INFO] [stdout] 42 +     fn connect(&mut self, device: &String) -> Result<(), <FlemSoftwareHost<PACKET_SIZE> as TryFrom>::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 42 -     fn connect(&mut self, device: &String) -> Result<(), Self::Error> {
[INFO] [stdout] 42 +     fn connect(&mut self, device: &String) -> Result<(), <FlemSoftwareHost<PACKET_SIZE> as TryInto>::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0223]: ambiguous associated type
[INFO] [stdout]   --> examples/software_host_simple.rs:46:44
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn disconnect(&mut self) -> Result<(), Self::Error> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use fully-qualified syntax
[INFO] [stdout]    |
[INFO] [stdout] 46 -     fn disconnect(&mut self) -> Result<(), Self::Error> {
[INFO] [stdout] 46 +     fn disconnect(&mut self) -> Result<(), <FlemSoftwareHost<PACKET_SIZE> as TryFrom>::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 46 -     fn disconnect(&mut self) -> Result<(), Self::Error> {
[INFO] [stdout] 46 +     fn disconnect(&mut self) -> Result<(), <FlemSoftwareHost<PACKET_SIZE> as TryInto>::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0223]: ambiguous associated type
[INFO] [stdout]   --> examples/software_host_simple.rs:84:42
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn unlisten(&mut self) -> Result<(), Self::Error> {
[INFO] [stdout]    |                                          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use fully-qualified syntax
[INFO] [stdout]    |
[INFO] [stdout] 84 -     fn unlisten(&mut self) -> Result<(), Self::Error> {
[INFO] [stdout] 84 +     fn unlisten(&mut self) -> Result<(), <FlemSoftwareHost<PACKET_SIZE> as TryFrom>::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 84 -     fn unlisten(&mut self) -> Result<(), Self::Error> {
[INFO] [stdout] 84 +     fn unlisten(&mut self) -> Result<(), <FlemSoftwareHost<PACKET_SIZE> as TryInto>::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0223, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0223`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flem` (example "software_host_simple") due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0432]: unresolved import `flem::traits::Channel`
[INFO] [stdout]   --> examples/software_host_complex.rs:1:12
[INFO] [stdout]    |
[INFO] [stdout]  1 | use flem::{traits::Channel, DataId, Packet};
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^ no `Channel` in `traits`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> /opt/rustwide/workdir/src/traits.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[cfg(feature = "std")]
[INFO] [stdout]    |       --------------- the item is gated behind the `std` feature
[INFO] [stdout] 27 | pub trait Channel<const T: usize>: Sized {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0223]: ambiguous associated type
[INFO] [stdout]   --> examples/software_host_complex.rs:38:58
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn connect(&mut self, device: &String) -> Result<(), Self::Error> {
[INFO] [stdout]    |                                                          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use fully-qualified syntax
[INFO] [stdout]    |
[INFO] [stdout] 38 -     fn connect(&mut self, device: &String) -> Result<(), Self::Error> {
[INFO] [stdout] 38 +     fn connect(&mut self, device: &String) -> Result<(), <FlemSoftwareHost<PACKET_SIZE> as TryFrom>::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 38 -     fn connect(&mut self, device: &String) -> Result<(), Self::Error> {
[INFO] [stdout] 38 +     fn connect(&mut self, device: &String) -> Result<(), <FlemSoftwareHost<PACKET_SIZE> as TryInto>::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0223]: ambiguous associated type
[INFO] [stdout]   --> examples/software_host_complex.rs:42:44
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn disconnect(&mut self) -> Result<(), Self::Error> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use fully-qualified syntax
[INFO] [stdout]    |
[INFO] [stdout] 42 -     fn disconnect(&mut self) -> Result<(), Self::Error> {
[INFO] [stdout] 42 +     fn disconnect(&mut self) -> Result<(), <FlemSoftwareHost<PACKET_SIZE> as TryFrom>::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 42 -     fn disconnect(&mut self) -> Result<(), Self::Error> {
[INFO] [stdout] 42 +     fn disconnect(&mut self) -> Result<(), <FlemSoftwareHost<PACKET_SIZE> as TryInto>::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0223]: ambiguous associated type
[INFO] [stdout]    --> examples/software_host_complex.rs:189:42
[INFO] [stdout]     |
[INFO] [stdout] 189 |     fn unlisten(&mut self) -> Result<(), Self::Error> {
[INFO] [stdout]     |                                          ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use fully-qualified syntax
[INFO] [stdout]     |
[INFO] [stdout] 189 -     fn unlisten(&mut self) -> Result<(), Self::Error> {
[INFO] [stdout] 189 +     fn unlisten(&mut self) -> Result<(), <FlemSoftwareHost<PACKET_SIZE> as TryFrom>::Error> {
[INFO] [stdout]     |
[INFO] [stdout] 189 -     fn unlisten(&mut self) -> Result<(), Self::Error> {
[INFO] [stdout] 189 +     fn unlisten(&mut self) -> Result<(), <FlemSoftwareHost<PACKET_SIZE> as TryInto>::Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0223, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0223`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flem` (example "software_host_complex") due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "969e18a2a3bddad10ef8a8b2b4a8c8034123804a9325821092a282d45707a38c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "969e18a2a3bddad10ef8a8b2b4a8c8034123804a9325821092a282d45707a38c", kill_on_drop: false }`
[INFO] [stdout] 969e18a2a3bddad10ef8a8b2b4a8c8034123804a9325821092a282d45707a38c