[INFO] fetching crate mongo-lock-async 0.4.0...
[INFO] testing mongo-lock-async-0.4.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate mongo-lock-async 0.4.0 into /workspace/builds/worker-4-tc1/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-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mongo-lock-async 0.4.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded macro_magic_macros v0.5.1
[INFO] [stderr]   Downloaded macro_magic v0.5.1
[INFO] [stderr]   Downloaded macro_magic_core_macros v0.5.1
[INFO] [stderr]   Downloaded mongocrypt v0.3.1
[INFO] [stderr]   Downloaded macro_magic_core v0.5.1
[INFO] [stderr]   Downloaded rustc_version_runtime v0.3.0
[INFO] [stderr]   Downloaded mongodb-internal-macros v3.3.0
[INFO] [stderr]   Downloaded derive-syn-parse v0.2.0
[INFO] [stderr]   Downloaded resolv-conf v0.7.5
[INFO] [stderr]   Downloaded mongocrypt-sys v0.1.4+1.12.0
[INFO] [stderr]   Downloaded derive-where v1.6.0
[INFO] [stderr]   Downloaded hickory-resolver v0.24.4
[INFO] [stderr]   Downloaded bson v2.15.0
[INFO] [stderr]   Downloaded mongodb v3.3.0
[INFO] [stderr]   Downloaded hickory-proto v0.24.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 548aae2c517c0f3c7dacc1f513d939401f7340936798291937047a5fe0d5b096
[INFO] running `Command { std: "docker" "start" "-a" "548aae2c517c0f3c7dacc1f513d939401f7340936798291937047a5fe0d5b096", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "548aae2c517c0f3c7dacc1f513d939401f7340936798291937047a5fe0d5b096", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "548aae2c517c0f3c7dacc1f513d939401f7340936798291937047a5fe0d5b096", kill_on_drop: false }`
[INFO] [stdout] 548aae2c517c0f3c7dacc1f513d939401f7340936798291937047a5fe0d5b096
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29d19daeef39564f5849b3707192c126a0fd1891ffe0a496f60d5c5f8755df54
[INFO] running `Command { std: "docker" "start" "-a" "29d19daeef39564f5849b3707192c126a0fd1891ffe0a496f60d5c5f8755df54", kill_on_drop: false }`
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[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling rand_core v0.9.3
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[INFO] [stderr]    Compiling take_mut v0.2.2
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[INFO] [stderr]    Compiling darling_macro v0.21.3
[INFO] [stderr]    Compiling typed-builder v0.20.1
[INFO] [stderr]    Compiling bson v2.15.0
[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 hickory-proto v0.24.4
[INFO] [stderr]    Compiling tokio-rustls v0.26.4
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[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 37.68s
[INFO] running `Command { std: "docker" "inspect" "29d19daeef39564f5849b3707192c126a0fd1891ffe0a496f60d5c5f8755df54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29d19daeef39564f5849b3707192c126a0fd1891ffe0a496f60d5c5f8755df54", kill_on_drop: false }`
[INFO] [stdout] 29d19daeef39564f5849b3707192c126a0fd1891ffe0a496f60d5c5f8755df54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82d954e9db09d982f630ee5ba14383f0cefd6ed2ac2447ace973bfc7c12a00f2
[INFO] running `Command { std: "docker" "start" "-a" "82d954e9db09d982f630ee5ba14383f0cefd6ed2ac2447ace973bfc7c12a00f2", 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" "82d954e9db09d982f630ee5ba14383f0cefd6ed2ac2447ace973bfc7c12a00f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82d954e9db09d982f630ee5ba14383f0cefd6ed2ac2447ace973bfc7c12a00f2", kill_on_drop: false }`
[INFO] [stdout] 82d954e9db09d982f630ee5ba14383f0cefd6ed2ac2447ace973bfc7c12a00f2