[INFO] fetching crate iqkms-signing 0.0.1...
[INFO] testing iqkms-signing-0.0.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate iqkms-signing 0.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate iqkms-signing 0.0.1
[INFO] finished tweaking crates.io crate iqkms-signing 0.0.1
[INFO] tweaked toml for crates.io crate iqkms-signing 0.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate iqkms-signing 0.0.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 46 packages to latest compatible versions
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 321a3d7116f1354f0c947e4b0f3cf014b97ac91782a330e3702ae509d1811b97
[INFO] running `Command { std: "docker" "start" "-a" "321a3d7116f1354f0c947e4b0f3cf014b97ac91782a330e3702ae509d1811b97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "321a3d7116f1354f0c947e4b0f3cf014b97ac91782a330e3702ae509d1811b97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "321a3d7116f1354f0c947e4b0f3cf014b97ac91782a330e3702ae509d1811b97", kill_on_drop: false }`
[INFO] [stdout] 321a3d7116f1354f0c947e4b0f3cf014b97ac91782a330e3702ae509d1811b97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1b233b405b74d9ae12cc86edc640c8f4bc3fb66662ddf10da3b9740daf3483aa
[INFO] running `Command { std: "docker" "start" "-a" "1b233b405b74d9ae12cc86edc640c8f4bc3fb66662ddf10da3b9740daf3483aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling zeroize v1.8.2
[INFO] [stderr]    Compiling base16ct v0.1.1
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling der v0.6.1
[INFO] [stderr]    Compiling spki v0.6.0
[INFO] [stderr]    Compiling pkcs8 v0.9.0
[INFO] [stderr]    Compiling sec1 v0.3.0
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling crypto-bigint v0.4.9
[INFO] [stderr]    Compiling ff v0.12.1
[INFO] [stderr]    Compiling signature v1.6.4
[INFO] [stderr]    Compiling group v0.12.1
[INFO] [stderr]    Compiling rfc6979 v0.3.1
[INFO] [stderr]    Compiling elliptic-curve v0.12.3
[INFO] [stderr]    Compiling ecdsa v0.14.8
[INFO] [stderr]    Compiling iq-crypto v0.0.1
[INFO] [stderr]    Compiling iqkms-signing v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `ecdsa` and `hazmat::PrehashSigner`
[INFO] [stdout]   --> src/lib.rs:29:25
[INFO] [stdout]    |
[INFO] [stdout] 29 | use crypto::signature::{ecdsa, hazmat::PrehashSigner};
[INFO] [stdout]    |                         ^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/lib.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let verifying_key = signing_key.verifying_key();
[INFO] [stdout]    |                             --------------------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 62 |         if self.keys.insert(verifying_key, signing_key).is_some() {
[INFO] [stdout]    |            ^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout] note: this expression has type `VerifyingKey`, which is uninhabited
[INFO] [stdout]   --> src/lib.rs:54:29
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let verifying_key = signing_key.verifying_key();
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `verifying_key`
[INFO] [stdout]   --> src/lib.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let verifying_key = signing_key.verifying_key();
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_verifying_key`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0004]: non-exhaustive patterns: type `&SigningKey` is non-empty
[INFO] [stdout]    --> src/lib.rs:124:15
[INFO] [stdout]     |
[INFO] [stdout] 124 |         match self {
[INFO] [stdout]     |               ^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `SigningKey` defined here
[INFO] [stdout]    --> src/lib.rs:91:10
[INFO] [stdout]     |
[INFO] [stdout]  91 | pub enum SigningKey {
[INFO] [stdout]     |          ^^^^^^^^^^
[INFO] [stdout]     = note: the matched value is of type `&SigningKey`
[INFO] [stdout]     = note: references are always considered inhabited
[INFO] [stdout] help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown
[INFO] [stdout]     |
[INFO] [stdout] 124 ~         match self {
[INFO] [stdout] 125 +             _ => todo!(),
[INFO] [stdout] 126 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0004]: non-exhaustive patterns: type `&SigningKey` is non-empty
[INFO] [stdout]    --> src/lib.rs:136:15
[INFO] [stdout]     |
[INFO] [stdout] 136 |         match self {
[INFO] [stdout]     |               ^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `SigningKey` defined here
[INFO] [stdout]    --> src/lib.rs:91:10
[INFO] [stdout]     |
[INFO] [stdout]  91 | pub enum SigningKey {
[INFO] [stdout]     |          ^^^^^^^^^^
[INFO] [stdout]     = note: the matched value is of type `&SigningKey`
[INFO] [stdout]     = note: references are always considered inhabited
[INFO] [stdout] help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown
[INFO] [stdout]     |
[INFO] [stdout] 136 ~         match self {
[INFO] [stdout] 137 +             _ => todo!(),
[INFO] [stdout] 138 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0004`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iqkms-signing` (lib) due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "1b233b405b74d9ae12cc86edc640c8f4bc3fb66662ddf10da3b9740daf3483aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b233b405b74d9ae12cc86edc640c8f4bc3fb66662ddf10da3b9740daf3483aa", kill_on_drop: false }`
[INFO] [stdout] 1b233b405b74d9ae12cc86edc640c8f4bc3fb66662ddf10da3b9740daf3483aa