[INFO] fetching crate mongo-lock-async 0.4.0...
[INFO] testing mongo-lock-async-0.4.0 against beta-2025-10-28 for beta-1.92-2
[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-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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-2025-10-28" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b79f344f070350ad6d68755108d2b120445c5601c12adc219f9489d4e121769
[INFO] running `Command { std: "docker" "start" "-a" "2b79f344f070350ad6d68755108d2b120445c5601c12adc219f9489d4e121769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b79f344f070350ad6d68755108d2b120445c5601c12adc219f9489d4e121769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b79f344f070350ad6d68755108d2b120445c5601c12adc219f9489d4e121769", kill_on_drop: false }`
[INFO] [stdout] 2b79f344f070350ad6d68755108d2b120445c5601c12adc219f9489d4e121769
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a53caf132ebcbd5bbf0faa53670b0b2329194f25d0085bee52e5bde5b0e3ac2f
[INFO] running `Command { std: "docker" "start" "-a" "a53caf132ebcbd5bbf0faa53670b0b2329194f25d0085bee52e5bde5b0e3ac2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling once_cell v1.21.3
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[INFO] [stderr]    Compiling typed-builder-macro v0.20.1
[INFO] [stderr]    Compiling resolv-conf v0.7.5
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling unicode-bidi v0.3.18
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[INFO] [stderr]    Compiling iana-time-zone v0.1.64
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling macro_magic v0.5.1
[INFO] [stderr]    Compiling zerofrom v0.1.6
[INFO] [stderr]    Compiling mongodb-internal-macros v3.3.0
[INFO] [stderr]    Compiling chrono v0.4.42
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[INFO] [stderr]    Compiling derive_more v0.99.20
[INFO] [stderr]    Compiling webpki-roots v0.26.11
[INFO] [stderr]    Compiling zerovec v0.11.5
[INFO] [stderr]    Compiling zerotrie v0.2.3
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling stringprep v0.1.5
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[INFO] [stderr]    Compiling hmac v0.12.1
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[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 typed-builder v0.20.1
[INFO] [stderr]    Compiling darling_macro v0.21.3
[INFO] [stderr]    Compiling tinystr v0.8.2
[INFO] [stderr]    Compiling potential_utf v0.1.4
[INFO] [stderr]    Compiling darling v0.21.3
[INFO] [stderr]    Compiling serde_with_macros v3.15.1
[INFO] [stderr]    Compiling icu_collections v2.1.1
[INFO] [stderr]    Compiling icu_locale_core v2.1.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling rustls-webpki v0.103.8
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling icu_provider v2.1.1
[INFO] [stderr]    Compiling icu_normalizer v2.1.1
[INFO] [stderr]    Compiling icu_properties v2.1.1
[INFO] [stderr]    Compiling serde_with v3.15.1
[INFO] [stderr]    Compiling uuid v1.18.1
[INFO] [stderr]    Compiling bson v2.15.0
[INFO] [stderr]    Compiling tokio-util v0.7.17
[INFO] [stderr]    Compiling idna_adapter v1.2.1
[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling url v2.5.7
[INFO] [stderr]    Compiling hickory-proto v0.24.4
[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 1m 15s
[INFO] running `Command { std: "docker" "inspect" "a53caf132ebcbd5bbf0faa53670b0b2329194f25d0085bee52e5bde5b0e3ac2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a53caf132ebcbd5bbf0faa53670b0b2329194f25d0085bee52e5bde5b0e3ac2f", kill_on_drop: false }`
[INFO] [stdout] a53caf132ebcbd5bbf0faa53670b0b2329194f25d0085bee52e5bde5b0e3ac2f
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce9b6d3c827813b9334ff0411695b116c4c0c3af72d03289ab3536d5c84f2572
[INFO] running `Command { std: "docker" "start" "-a" "ce9b6d3c827813b9334ff0411695b116c4c0c3af72d03289ab3536d5c84f2572", 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" "ce9b6d3c827813b9334ff0411695b116c4c0c3af72d03289ab3536d5c84f2572", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce9b6d3c827813b9334ff0411695b116c4c0c3af72d03289ab3536d5c84f2572", kill_on_drop: false }`
[INFO] [stdout] ce9b6d3c827813b9334ff0411695b116c4c0c3af72d03289ab3536d5c84f2572
