[INFO] fetching crate rust-dropbox 0.2.8...
[INFO] testing rust-dropbox-0.2.8 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rust-dropbox 0.2.8 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate rust-dropbox 0.2.8
[INFO] finished tweaking crates.io crate rust-dropbox 0.2.8
[INFO] tweaked toml for crates.io crate rust-dropbox 0.2.8 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-dropbox 0.2.8 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 190 packages to latest compatible versions
[INFO] [stderr]       Adding reqwest v0.11.27 (available: v0.13.2)
[INFO] [stderr]       Adding ureq v2.12.1 (available: v3.3.0)
[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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 2e89b8ba3cf132e9c6c5967796b07d1aed34793780adba5e1fd1ca33c27feb9e
[INFO] running `Command { std: "docker" "start" "-a" "2e89b8ba3cf132e9c6c5967796b07d1aed34793780adba5e1fd1ca33c27feb9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e89b8ba3cf132e9c6c5967796b07d1aed34793780adba5e1fd1ca33c27feb9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e89b8ba3cf132e9c6c5967796b07d1aed34793780adba5e1fd1ca33c27feb9e", kill_on_drop: false }`
[INFO] [stdout] 2e89b8ba3cf132e9c6c5967796b07d1aed34793780adba5e1fd1ca33c27feb9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 1a97818491c63f2198168cdd906175725b53d28a7e3a16e02f8b3f78dfa3a07c
[INFO] running `Command { std: "docker" "start" "-a" "1a97818491c63f2198168cdd906175725b53d28a7e3a16e02f8b3f78dfa3a07c", kill_on_drop: false }`
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling cc v1.2.61
[INFO] [stderr]    Compiling rustls-pki-types v1.14.1
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling simd-adler32 v0.3.9
[INFO] [stderr]    Compiling rustls v0.23.39
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling icu_normalizer v2.2.0
[INFO] [stderr]    Compiling webpki-roots v1.0.7
[INFO] [stderr]    Compiling webpki-roots v0.26.11
[INFO] [stderr]    Compiling flate2 v1.1.9
[INFO] [stderr]    Compiling idna_adapter v1.2.1
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling url v2.5.8
[INFO] [stderr]    Compiling rustls-webpki v0.103.13
[INFO] [stderr]    Compiling ureq v2.12.1
[INFO] [stderr]    Compiling rust-dropbox v0.2.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `error` is never read
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct DbxRequestErrorSummary {
[INFO] [stdout]    |        ---------------------- field in this struct
[INFO] [stdout] 12 |     error_summary: String,
[INFO] [stdout] 13 |     error: DbxRequestErrorTag,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DbxRequestErrorSummary` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reason` is never read
[INFO] [stdout]   --> src/lib.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct DbxRequestErrorReason {
[INFO] [stdout]    |        --------------------- field in this struct
[INFO] [stdout] 18 |     reason: DbxRequestErrorTag,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DbxRequestErrorReason` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tag` is never read
[INFO] [stdout]   --> src/lib.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct DbxRequestErrorTag {
[INFO] [stdout]    |        ------------------ field in this struct
[INFO] [stdout] 23 |     #[serde(alias = ".tag")]
[INFO] [stdout] 24 |     tag: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DbxRequestErrorTag` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UserCheckResult` is never constructed
[INFO] [stdout]   --> src/lib.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct UserCheckResult {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.63s
[INFO] running `Command { std: "docker" "inspect" "1a97818491c63f2198168cdd906175725b53d28a7e3a16e02f8b3f78dfa3a07c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a97818491c63f2198168cdd906175725b53d28a7e3a16e02f8b3f78dfa3a07c", kill_on_drop: false }`
[INFO] [stdout] 1a97818491c63f2198168cdd906175725b53d28a7e3a16e02f8b3f78dfa3a07c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f3df6aa4fc9ae4605fe7ccd2de85d082c46e668c1536a13d6a3a8e183d66cddb
[INFO] running `Command { std: "docker" "start" "-a" "f3df6aa4fc9ae4605fe7ccd2de85d082c46e668c1536a13d6a3a8e183d66cddb", kill_on_drop: false }`
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stdout] warning: field `error` is never read
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct DbxRequestErrorSummary {
[INFO] [stdout]    |        ---------------------- field in this struct
[INFO] [stdout] 12 |     error_summary: String,
[INFO] [stdout] 13 |     error: DbxRequestErrorTag,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DbxRequestErrorSummary` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reason` is never read
[INFO] [stdout]   --> src/lib.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct DbxRequestErrorReason {
[INFO] [stdout]    |        --------------------- field in this struct
[INFO] [stdout] 18 |     reason: DbxRequestErrorTag,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DbxRequestErrorReason` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tag` is never read
[INFO] [stdout]   --> src/lib.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct DbxRequestErrorTag {
[INFO] [stdout]    |        ------------------ field in this struct
[INFO] [stdout] 23 |     #[serde(alias = ".tag")]
[INFO] [stdout] 24 |     tag: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DbxRequestErrorTag` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UserCheckResult` is never constructed
[INFO] [stdout]   --> src/lib.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct UserCheckResult {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling tokio v1.52.1
[INFO] [stderr]    Compiling rust-dropbox v0.2.8 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: cannot find `AsyncDBXClient` in `client`
[INFO] [stdout]   --> src/test.rs:13:30
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let client = client::AsyncDBXClient::new(&token);
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^ could not find `AsyncDBXClient` in `client`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> src/client.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[cfg(feature = "non-blocking")]
[INFO] [stdout]    |       ------------------------ the item is gated behind the `non-blocking` feature
[INFO] [stdout] 18 | #[derive(Debug, Clone)]
[INFO] [stdout] 19 | pub struct AsyncDBXClient {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find `AsyncDBXClient` in `client`
[INFO] [stdout]   --> src/test.rs:25:30
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let client = client::AsyncDBXClient::new(&token);
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^ could not find `AsyncDBXClient` in `client`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> src/client.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[cfg(feature = "non-blocking")]
[INFO] [stdout]    |       ------------------------ the item is gated behind the `non-blocking` feature
[INFO] [stdout] 18 | #[derive(Debug, Clone)]
[INFO] [stdout] 19 | pub struct AsyncDBXClient {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find `AsyncDBXClient` in `client`
[INFO] [stdout]   --> src/test.rs:35:30
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let client = client::AsyncDBXClient::new(&token);
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^ could not find `AsyncDBXClient` in `client`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> src/client.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[cfg(feature = "non-blocking")]
[INFO] [stdout]    |       ------------------------ the item is gated behind the `non-blocking` feature
[INFO] [stdout] 18 | #[derive(Debug, Clone)]
[INFO] [stdout] 19 | pub struct AsyncDBXClient {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find `AsyncDBXClient` in `client`
[INFO] [stdout]   --> src/test.rs:51:30
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let client = client::AsyncDBXClient::new(&token);
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^ could not find `AsyncDBXClient` in `client`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> src/client.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[cfg(feature = "non-blocking")]
[INFO] [stdout]    |       ------------------------ the item is gated behind the `non-blocking` feature
[INFO] [stdout] 18 | #[derive(Debug, Clone)]
[INFO] [stdout] 19 | pub struct AsyncDBXClient {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find `AsyncDBXClient` in `client`
[INFO] [stdout]   --> src/test.rs:67:30
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let client = client::AsyncDBXClient::new(&token);
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^ could not find `AsyncDBXClient` in `client`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> src/client.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[cfg(feature = "non-blocking")]
[INFO] [stdout]    |       ------------------------ the item is gated behind the `non-blocking` feature
[INFO] [stdout] 18 | #[derive(Debug, Clone)]
[INFO] [stdout] 19 | pub struct AsyncDBXClient {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-dropbox` (lib test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "f3df6aa4fc9ae4605fe7ccd2de85d082c46e668c1536a13d6a3a8e183d66cddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3df6aa4fc9ae4605fe7ccd2de85d082c46e668c1536a13d6a3a8e183d66cddb", kill_on_drop: false }`
[INFO] [stdout] f3df6aa4fc9ae4605fe7ccd2de85d082c46e668c1536a13d6a3a8e183d66cddb
