[INFO] fetching crate mongo-lock 0.3.0...
[INFO] testing mongo-lock-0.3.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mongo-lock 0.3.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate mongo-lock 0.3.0
[INFO] finished tweaking crates.io crate mongo-lock 0.3.0
[INFO] tweaked toml for crates.io crate mongo-lock 0.3.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mongo-lock 0.3.0 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 277 packages to latest compatible versions
[INFO] [stderr]       Adding async-executor v1.5.1 (available: v1.13.3)
[INFO] [stderr]       Adding async-global-executor v2.3.1 (available: v2.4.1)
[INFO] [stderr]       Adding async-std v1.12.0 (available: v1.13.2)
[INFO] [stderr]       Adding mongodb v2.8.2 (available: v3.3.0)
[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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 46cc04107ac06c9015a41f16e5156a5d2223a8c777c5070df5bb74af224823ee
[INFO] running `Command { std: "docker" "start" "-a" "46cc04107ac06c9015a41f16e5156a5d2223a8c777c5070df5bb74af224823ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46cc04107ac06c9015a41f16e5156a5d2223a8c777c5070df5bb74af224823ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46cc04107ac06c9015a41f16e5156a5d2223a8c777c5070df5bb74af224823ee", kill_on_drop: false }`
[INFO] [stdout] 46cc04107ac06c9015a41f16e5156a5d2223a8c777c5070df5bb74af224823ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 2a42c53c3b256202fb705232370f28e590526e3c87f88b09659b781d4ed00eb0
[INFO] running `Command { std: "docker" "start" "-a" "2a42c53c3b256202fb705232370f28e590526e3c87f88b09659b781d4ed00eb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-lite v2.6.1
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling waker-fn v1.2.0
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling rustix v0.37.28
[INFO] [stderr]    Compiling async-lock v2.8.0
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling polling v3.11.0
[INFO] [stderr]    Compiling socket2 v0.4.10
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling futures-lite v1.13.0
[INFO] [stderr]    Compiling piper v0.2.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling url v2.5.7
[INFO] [stderr]    Compiling event-listener v3.1.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling async-io v2.6.0
[INFO] [stderr]    Compiling blocking v1.6.2
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling time-macros v0.2.24
[INFO] [stderr]    Compiling rustc_version_runtime v0.2.1
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling async-executor v1.5.1
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling rustls-webpki v0.101.7
[INFO] [stderr]    Compiling sct v0.7.1
[INFO] [stderr]    Compiling async-signal v0.2.13
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling resolv-conf v0.7.5
[INFO] [stderr]    Compiling uuid v1.18.1
[INFO] [stderr]    Compiling serde_bytes v0.11.19
[INFO] [stderr]    Compiling rustls v0.21.12
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling iana-time-zone v0.1.64
[INFO] [stderr]    Compiling unicode-properties v0.1.3
[INFO] [stderr]    Compiling sha-1 v0.10.1
[INFO] [stderr]    Compiling stringprep v0.1.5
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling derive_more v0.99.20
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling md-5 v0.10.6
[INFO] [stderr]    Compiling pbkdf2 v0.11.0
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling async-global-executor v2.3.1
[INFO] [stderr]    Compiling async-process v1.8.1
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling bson v2.15.0
[INFO] [stderr]    Compiling tokio-util v0.7.16
[INFO] [stderr]    Compiling tokio-rustls v0.24.1
[INFO] [stderr]    Compiling enum-as-inner v0.4.0
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling typed-builder v0.10.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling trust-dns-proto v0.21.2
[INFO] [stderr]    Compiling async-std v1.12.0
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling serde_with_macros v1.5.2
[INFO] [stderr]    Compiling trust-dns-resolver v0.21.2
[INFO] [stderr]    Compiling serde_with v1.14.0
[INFO] [stderr]    Compiling async-std-resolver v0.21.2
[INFO] [stderr]    Compiling mongodb v2.8.2
[INFO] [stderr]    Compiling mongo-lock v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "2a42c53c3b256202fb705232370f28e590526e3c87f88b09659b781d4ed00eb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a42c53c3b256202fb705232370f28e590526e3c87f88b09659b781d4ed00eb0", kill_on_drop: false }`
[INFO] [stdout] 2a42c53c3b256202fb705232370f28e590526e3c87f88b09659b781d4ed00eb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 28d39562b2ee563ad7f1b7bcbf7e79a01400f7c07b0deae758fff9aa8ba6d5fb
[INFO] running `Command { std: "docker" "start" "-a" "28d39562b2ee563ad7f1b7bcbf7e79a01400f7c07b0deae758fff9aa8ba6d5fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling mongo-lock v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `rand::distributions`
[INFO] [stdout]    --> src/lib.rs:179:20
[INFO] [stdout]     |
[INFO] [stdout] 179 |         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:179:49
[INFO] [stdout]     |
[INFO] [stdout] 179 |         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` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "28d39562b2ee563ad7f1b7bcbf7e79a01400f7c07b0deae758fff9aa8ba6d5fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28d39562b2ee563ad7f1b7bcbf7e79a01400f7c07b0deae758fff9aa8ba6d5fb", kill_on_drop: false }`
[INFO] [stdout] 28d39562b2ee563ad7f1b7bcbf7e79a01400f7c07b0deae758fff9aa8ba6d5fb
