[INFO] fetching crate mongo-lock-async 0.4.0...
[INFO] testing mongo-lock-async-0.4.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mongo-lock-async 0.4.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mongo-lock-async 0.4.0
[INFO] finished tweaking crates.io crate mongo-lock-async 0.4.0
[INFO] tweaked toml for crates.io crate mongo-lock-async 0.4.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mongo-lock-async 0.4.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 241 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] [stderr]     Blocking waiting for file lock on package cache
[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] 424a784e96f350202ffd3bdc65b22f5635f6e73d6ed3de3ba7e5ae4d5da7cf5a
[INFO] running `Command { std: "docker" "start" "-a" "424a784e96f350202ffd3bdc65b22f5635f6e73d6ed3de3ba7e5ae4d5da7cf5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "424a784e96f350202ffd3bdc65b22f5635f6e73d6ed3de3ba7e5ae4d5da7cf5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "424a784e96f350202ffd3bdc65b22f5635f6e73d6ed3de3ba7e5ae4d5da7cf5a", kill_on_drop: false }`
[INFO] [stdout] 424a784e96f350202ffd3bdc65b22f5635f6e73d6ed3de3ba7e5ae4d5da7cf5a
[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] c36702bd4914a34c4819fb1bfa7ab6815c5b7c5f67425ffc6f90176e71b86464
[INFO] running `Command { std: "docker" "start" "-a" "c36702bd4914a34c4819fb1bfa7ab6815c5b7c5f67425ffc6f90176e71b86464", kill_on_drop: false }`
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling zeroize v1.8.2
[INFO] [stderr]    Compiling derive-syn-parse v0.2.0
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling macro_magic_core_macros v0.5.1
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling darling_core v0.21.3
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling time-core v0.1.6
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling rustls-pki-types v1.12.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling deranged v0.5.4
[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling time-macros v0.2.24
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling mongocrypt-sys v0.1.4+1.12.0
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]    Compiling rustls v0.23.32
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling rustls-webpki v0.103.6
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling url v2.5.7
[INFO] [stderr]    Compiling enum-as-inner v0.6.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling const-random v0.1.18
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling uuid v1.18.1
[INFO] [stderr]    Compiling rustc_version_runtime v0.3.0
[INFO] [stderr]    Compiling macro_magic_core v0.5.1
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling serde_bytes v0.11.19
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling macro_magic_macros v0.5.1
[INFO] [stderr]    Compiling webpki-roots v1.0.2
[INFO] [stderr]    Compiling typed-builder-macro v0.20.1
[INFO] [stderr]    Compiling resolv-conf v0.7.5
[INFO] [stderr]    Compiling unicode-properties v0.1.3
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling derive_more v0.99.20
[INFO] [stderr]    Compiling stringprep v0.1.5
[INFO] [stderr]    Compiling macro_magic v0.5.1
[INFO] [stderr]    Compiling mongodb-internal-macros v3.3.0
[INFO] [stderr]    Compiling webpki-roots v0.26.11
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling md-5 v0.10.6
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling pbkdf2 v0.11.0
[INFO] [stderr]    Compiling derive-where v1.6.0
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling typed-builder v0.20.1
[INFO] [stderr]    Compiling darling_macro v0.21.3
[INFO] [stderr]    Compiling darling v0.21.3
[INFO] [stderr]    Compiling serde_with_macros v3.14.1
[INFO] [stderr]    Compiling serde_with v3.14.1
[INFO] [stderr]    Compiling bson v2.15.0
[INFO] [stderr]    Compiling hickory-proto v0.24.4
[INFO] [stderr]    Compiling tokio-util v0.7.16
[INFO] [stderr]    Compiling tokio-rustls v0.26.4
[INFO] [stderr]    Compiling mongocrypt v0.3.1
[INFO] [stderr]    Compiling hickory-resolver v0.24.4
[INFO] [stderr]    Compiling mongodb v3.3.0
[INFO] [stderr]    Compiling mongo-lock-async v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 50.99s
[INFO] running `Command { std: "docker" "inspect" "c36702bd4914a34c4819fb1bfa7ab6815c5b7c5f67425ffc6f90176e71b86464", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c36702bd4914a34c4819fb1bfa7ab6815c5b7c5f67425ffc6f90176e71b86464", kill_on_drop: false }`
[INFO] [stdout] c36702bd4914a34c4819fb1bfa7ab6815c5b7c5f67425ffc6f90176e71b86464
[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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b95c9bb6dbfa21d962efce1a6c870ca464f9b7a89d43f186efb4eecd2222cba7
[INFO] running `Command { std: "docker" "start" "-a" "b95c9bb6dbfa21d962efce1a6c870ca464f9b7a89d43f186efb4eecd2222cba7", kill_on_drop: false }`
[INFO] [stderr]    Compiling mongo-lock-async v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `rand::distributions`
[INFO] [stdout]    --> src/lib.rs:180:20
[INFO] [stdout]     |
[INFO] [stdout] 180 |         use rand::{distributions::Alphanumeric, thread_rng, Rng};
[INFO] [stdout]     |                    ^^^^^^^^^^^^^ could not find `distributions` in `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> src/lib.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 181 |         thread_rng()
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> src/lib.rs:180:49
[INFO] [stdout]     |
[INFO] [stdout] 180 |         use rand::{distributions::Alphanumeric, thread_rng, Rng};
[INFO] [stdout]     |                                                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mongo-lock-async` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b95c9bb6dbfa21d962efce1a6c870ca464f9b7a89d43f186efb4eecd2222cba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b95c9bb6dbfa21d962efce1a6c870ca464f9b7a89d43f186efb4eecd2222cba7", kill_on_drop: false }`
[INFO] [stdout] b95c9bb6dbfa21d962efce1a6c870ca464f9b7a89d43f186efb4eecd2222cba7
