[INFO] cloning repository https://github.com/polynya-dev/firn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/polynya-dev/firn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpolynya-dev%2Ffirn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpolynya-dev%2Ffirn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 245140e7f071a049d33b6471d194815114629cf1
[INFO] checking polynya-dev/firn against try#1779a8680dcd39c56ed600627cf6742ef07ed78c for pr-149045
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpolynya-dev%2Ffirn" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/polynya-dev/firn
[INFO] finished tweaking git repo https://github.com/polynya-dev/firn
[INFO] tweaked toml for git repo https://github.com/polynya-dev/firn written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/polynya-dev/firn on toolchain 1779a8680dcd39c56ed600627cf6742ef07ed78c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/polynya-dev/firn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e78e9be195378b0f9d7d2b997cba92b4c1fa0cca2efb7af3bcd3f5bd8352dc6f
[INFO] running `Command { std: "docker" "start" "-a" "e78e9be195378b0f9d7d2b997cba92b4c1fa0cca2efb7af3bcd3f5bd8352dc6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e78e9be195378b0f9d7d2b997cba92b4c1fa0cca2efb7af3bcd3f5bd8352dc6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e78e9be195378b0f9d7d2b997cba92b4c1fa0cca2efb7af3bcd3f5bd8352dc6f", kill_on_drop: false }`
[INFO] [stdout] e78e9be195378b0f9d7d2b997cba92b4c1fa0cca2efb7af3bcd3f5bd8352dc6f
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48137b5b5750ef7f6b959838ea7409b169f90e5fe5ad4ca8503ece333590e463
[INFO] running `Command { std: "docker" "start" "-a" "48137b5b5750ef7f6b959838ea7409b169f90e5fe5ad4ca8503ece333590e463", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]     Checking tokio v1.52.1
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]     Checking half v2.7.1
[INFO] [stderr]    Compiling semver v1.0.28
[INFO] [stderr]     Checking yoke v0.8.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]    Compiling rustls v0.23.40
[INFO] [stderr]     Checking rustls-native-certs v0.8.3
[INFO] [stderr]     Checking webpki-roots v1.0.7
[INFO] [stderr]     Checking iri-string v0.7.12
[INFO] [stderr]     Checking comfy-table v7.2.2
[INFO] [stderr]     Checking zerovec v0.11.6
[INFO] [stderr]     Checking zerotrie v0.2.4
[INFO] [stderr]     Checking ahash v0.8.12
[INFO] [stderr]     Checking rand_core v0.9.5
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking datafusion-doc v52.5.0
[INFO] [stderr]     Checking md-5 v0.10.6
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]     Checking petgraph v0.8.3
[INFO] [stderr]     Checking blake2 v0.10.6
[INFO] [stderr]     Checking libbz2-rs-sys v0.2.3
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling datafusion-macros v52.5.0
[INFO] [stderr]     Checking compression-core v0.4.32
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking dashmap v6.1.0
[INFO] [stderr]     Checking block-padding v0.3.3
[INFO] [stderr]    Compiling darling_core v0.23.0
[INFO] [stderr]     Checking inout v0.1.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.9.4
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]    Compiling flatbuffers v25.12.19
[INFO] [stderr]     Checking tinystr v0.8.3
[INFO] [stderr]     Checking potential_utf v0.1.5
[INFO] [stderr]    Compiling bigdecimal v0.4.10
[INFO] [stderr]     Checking icu_collections v2.2.0
[INFO] [stderr]     Checking pbkdf2 v0.12.2
[INFO] [stderr]     Checking rand v0.8.6
[INFO] [stderr]     Checking salsa20 v0.10.2
[INFO] [stderr]     Checking icu_locale_core v2.2.0
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]     Checking scrypt v0.11.0
[INFO] [stderr]     Checking aes v0.8.4
[INFO] [stderr]     Checking bzip2 v0.6.1
[INFO] [stderr]     Checking cbc v0.1.2
[INFO] [stderr]    Compiling erased-serde v0.4.10
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling derive_builder_core v0.20.2
[INFO] [stderr]     Checking event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling fastnum v0.7.4
[INFO] [stderr]    Compiling typetag v0.2.21
[INFO] [stderr]     Checking time v0.3.47
[INFO] [stderr]     Checking async-lock v3.4.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]    Compiling typed-builder-macro v0.20.1
[INFO] [stderr]    Compiling typetag-impl v0.2.21
[INFO] [stderr]    Compiling cc v1.2.61
[INFO] [stderr]     Checking pkcs5 v0.7.1
[INFO] [stderr]     Checking const-random v0.1.18
[INFO] [stderr]     Checking icu_provider v2.2.0
[INFO] [stderr]     Checking dlv-list v0.5.2
[INFO] [stderr]     Checking tagptr v0.2.0
[INFO] [stderr]     Checking regex-lite v0.1.9
[INFO] [stderr]     Checking inventory v0.3.24
[INFO] [stderr]     Checking dissimilar v1.0.11
[INFO] [stderr]     Checking roaring v0.11.4
[INFO] [stderr]     Checking icu_normalizer v2.2.0
[INFO] [stderr]     Checking icu_properties v2.2.0
[INFO] [stderr]     Checking pkcs8 v0.10.2
[INFO] [stderr]     Checking pkcs1 v0.7.5
[INFO] [stderr]     Checking expect-test v1.5.1
[INFO] [stderr]     Checking ordered-multimap v0.7.3
[INFO] [stderr]     Checking num-bigint-dig v0.8.6
[INFO] [stderr]    Compiling crc32c v0.6.8
[INFO] [stderr]     Checking signature v2.2.0
[INFO] [stderr]     Checking ordered-float v4.6.0
[INFO] [stderr]    Compiling serde_repr v0.1.20
[INFO] [stderr]     Checking as-any v0.3.2
[INFO] [stderr]     Checking murmur3 v0.5.2
[INFO] [stderr]     Checking array-init v2.1.0
[INFO] [stderr]     Checking bimap v0.6.3
[INFO] [stderr]     Checking rust-ini v0.21.3
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]    Compiling derive_builder_macro v0.20.2
[INFO] [stderr]    Compiling napi-build v2.3.1
[INFO] [stderr]     Checking wait-timeout v0.2.1
[INFO] [stderr]     Checking rand_xorshift v0.4.0
[INFO] [stderr]     Checking derive_builder v0.20.2
[INFO] [stderr]    Compiling convert_case v0.11.0
[INFO] [stderr]    Compiling napi v3.8.6
[INFO] [stderr]     Checking rusty-fork v0.3.1
[INFO] [stderr]     Checking libloading v0.9.0
[INFO] [stderr]    Compiling firn-node v0.1.0 (/opt/rustwide/workdir/crates/firn-node)
[INFO] [stderr]     Checking nohash-hasher v0.2.0
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking serde_json v1.0.149
[INFO] [stderr]     Checking csv v1.4.0
[INFO] [stderr]     Checking uuid v1.23.1
[INFO] [stderr]     Checking serde_bytes v0.11.19
[INFO] [stderr]     Checking rsa v0.9.10
[INFO] [stderr]     Checking futures-executor v0.3.32
[INFO] [stderr]     Checking jiff v0.2.24
[INFO] [stderr]     Checking futures v0.3.32
[INFO] [stderr]     Checking proptest v1.11.0
[INFO] [stderr]    Compiling napi-derive-backend v5.0.4
[INFO] [stderr]     Checking typed-builder v0.20.1
[INFO] [stderr]     Checking napi-sys v3.2.1
[INFO] [stderr]     Checking rustc-hash v2.1.2
[INFO] [stderr]    Compiling ctor v0.11.1
[INFO] [stderr]     Checking moka v0.12.15
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling zstd-sys v2.0.16+zstd.1.5.7
[INFO] [stderr]    Compiling psm v0.1.31
[INFO] [stderr]    Compiling stacker v0.1.24
[INFO] [stderr]    Compiling blake3 v1.8.5
[INFO] [stderr]     Checking idna_adapter v1.2.2
[INFO] [stderr]    Compiling liblzma-sys v0.4.6
[INFO] [stderr]     Checking idna v1.1.0
[INFO] [stderr]    Compiling darling_macro v0.23.0
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking chrono v0.4.44
[INFO] [stderr]     Checking url v2.5.8
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking quick-xml v0.38.4
[INFO] [stderr]     Checking arrow-schema v57.3.0
[INFO] [stderr]    Compiling darling v0.23.0
[INFO] [stderr]    Compiling bon-macros v3.9.1
[INFO] [stderr]     Checking recursive v0.1.1
[INFO] [stderr]     Checking sqlparser v0.59.0
[INFO] [stderr]     Checking serde-big-array v0.5.1
[INFO] [stderr]     Checking tokio-util v0.7.18
[INFO] [stderr]     Checking tower v0.5.3
[INFO] [stderr]     Checking datafusion-common-runtime v52.5.0
[INFO] [stderr]     Checking bnum v0.12.1
[INFO] [stderr]     Checking backon v1.6.0
[INFO] [stderr]    Compiling serde_with_macros v3.18.0
[INFO] [stderr]     Checking chrono-tz v0.10.4
[INFO] [stderr]     Checking quick-xml v0.37.5
[INFO] [stderr]     Checking h2 v0.4.13
[INFO] [stderr]     Checking tower-http v0.6.8
[INFO] [stderr]     Checking arrow-buffer v57.3.0
[INFO] [stderr]     Checking simple_asn1 v0.6.4
[INFO] [stderr]     Checking serde_with v3.18.0
[INFO] [stderr]     Checking arrow-data v57.3.0
[INFO] [stderr]    Compiling napi-derive v3.5.5
[INFO] [stderr]     Checking bon v3.9.1
[INFO] [stderr]     Checking rustls-webpki v0.103.13
[INFO] [stderr]     Checking jsonwebtoken v9.3.1
[INFO] [stderr]     Checking liblzma v0.4.6
[INFO] [stderr]     Checking hyper v1.9.0
[INFO] [stderr]     Checking hyper-util v0.1.20
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]     Checking zstd v0.13.3
[INFO] [stderr]     Checking compression-codecs v0.4.38
[INFO] [stderr]     Checking apache-avro v0.21.0
[INFO] [stderr]     Checking arrow-array v57.3.0
[INFO] [stderr]     Checking async-compression v0.4.42
[INFO] [stderr]     Checking tokio-rustls v0.26.4
[INFO] [stderr]     Checking hyper-rustls v0.27.9
[INFO] [stderr]     Checking reqwest v0.12.28
[INFO] [stderr]     Checking arrow-select v57.3.0
[INFO] [stderr]     Checking arrow-arith v57.3.0
[INFO] [stderr]     Checking arrow-row v57.3.0
[INFO] [stderr]     Checking object_store v0.12.5
[INFO] [stderr]     Checking reqsign v0.16.5
[INFO] [stderr]     Checking arrow-ord v57.3.0
[INFO] [stderr]     Checking arrow-ipc v57.3.0
[INFO] [stderr]     Checking arrow-string v57.3.0
[INFO] [stderr]     Checking opendal v0.55.0
[INFO] [stderr]     Checking arrow-cast v57.3.0
[INFO] [stderr]     Checking arrow-csv v57.3.0
[INFO] [stderr]     Checking arrow-json v57.3.0
[INFO] [stderr]     Checking arrow v57.3.0
[INFO] [stderr]     Checking parquet v57.3.0
[INFO] [stderr]     Checking datafusion-common v52.5.0
[INFO] [stderr]     Checking iceberg v0.9.0
[INFO] [stderr]     Checking datafusion-expr-common v52.5.0
[INFO] [stderr]     Checking datafusion-physical-expr-common v52.5.0
[INFO] [stderr]     Checking datafusion-functions-aggregate-common v52.5.0
[INFO] [stderr]     Checking datafusion-functions-window-common v52.5.0
[INFO] [stderr]     Checking datafusion-expr v52.5.0
[INFO] [stderr]     Checking datafusion-physical-expr v52.5.0
[INFO] [stderr]     Checking datafusion-execution v52.5.0
[INFO] [stderr]     Checking datafusion-sql v52.5.0
[INFO] [stderr]     Checking iceberg-catalog-rest v0.9.0
[INFO] [stderr]     Checking iceberg-storage-opendal v0.9.0
[INFO] [stderr]     Checking datafusion-functions v52.5.0
[INFO] [stderr]     Checking datafusion-functions-aggregate v52.5.0
[INFO] [stderr]     Checking datafusion-optimizer v52.5.0
[INFO] [stderr]     Checking datafusion-functions-window v52.5.0
[INFO] [stderr]     Checking datafusion-physical-plan v52.5.0
[INFO] [stderr]     Checking datafusion-physical-expr-adapter v52.5.0
[INFO] [stderr]     Checking datafusion-functions-nested v52.5.0
[INFO] [stderr]     Checking datafusion-session v52.5.0
[INFO] [stderr]     Checking datafusion-datasource v52.5.0
[INFO] [stderr]     Checking datafusion-pruning v52.5.0
[INFO] [stderr]     Checking datafusion-catalog v52.5.0
[INFO] [stderr]     Checking datafusion-datasource-csv v52.5.0
[INFO] [stderr]     Checking datafusion-datasource-arrow v52.5.0
[INFO] [stderr]     Checking datafusion-datasource-json v52.5.0
[INFO] [stderr]     Checking datafusion-physical-optimizer v52.5.0
[INFO] [stderr]     Checking datafusion-datasource-parquet v52.5.0
[INFO] [stderr]     Checking datafusion-catalog-listing v52.5.0
[INFO] [stderr]     Checking datafusion-functions-table v52.5.0
[INFO] [stderr]     Checking datafusion v52.5.0
[INFO] [stderr]     Checking iceberg-datafusion v0.9.0
[INFO] [stderr]     Checking firn-core v0.1.0 (/opt/rustwide/workdir/crates/firn-core)
[INFO] [stdout] warning: unused import: `SystemClock`
[INFO] [stdout]  --> crates/firn-core/src/traits/mod.rs:9:24
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use clock::{Clock, SystemClock};
[INFO] [stdout]   |                        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OsRng`
[INFO] [stdout]   --> crates/firn-core/src/traits/mod.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use rng::{OsRng, Rng};
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SystemClock`
[INFO] [stdout]  --> crates/firn-core/src/traits/mod.rs:9:24
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use clock::{Clock, SystemClock};
[INFO] [stdout]   |                        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OsRng`
[INFO] [stdout]   --> crates/firn-core/src/traits/mod.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use rng::{OsRng, Rng};
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `engine` is never read
[INFO] [stdout]   --> crates/firn-core/src/engine.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub struct Pinned {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 70 |     engine: Arc<EngineInner>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SystemClock` is never constructed
[INFO] [stdout]   --> crates/firn-core/src/traits/clock.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct SystemClock;
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OsRng` is never constructed
[INFO] [stdout]   --> crates/firn-core/src/traits/rng.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct OsRng;
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `engine` is never read
[INFO] [stdout]   --> crates/firn-core/src/engine.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub struct Pinned {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 70 |     engine: Arc<EngineInner>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SystemClock` is never constructed
[INFO] [stdout]   --> crates/firn-core/src/traits/clock.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct SystemClock;
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OsRng` is never constructed
[INFO] [stdout]   --> crates/firn-core/src/traits/rng.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct OsRng;
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 28s
[INFO] running `Command { std: "docker" "inspect" "48137b5b5750ef7f6b959838ea7409b169f90e5fe5ad4ca8503ece333590e463", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48137b5b5750ef7f6b959838ea7409b169f90e5fe5ad4ca8503ece333590e463", kill_on_drop: false }`
[INFO] [stdout] 48137b5b5750ef7f6b959838ea7409b169f90e5fe5ad4ca8503ece333590e463
