[INFO] cloning repository https://github.com/scholtz/derec-crypto-core-grpc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scholtz/derec-crypto-core-grpc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscholtz%2Fderec-crypto-core-grpc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscholtz%2Fderec-crypto-core-grpc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7970ea6fa64545e4205372c38c0bb9c619cae960
[INFO] checking scholtz/derec-crypto-core-grpc against try#8a2f6fe57adadb246778b8d41925d3dc46d468cb for pr-158320
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscholtz%2Fderec-crypto-core-grpc" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/scholtz/derec-crypto-core-grpc
[INFO] finished tweaking git repo https://github.com/scholtz/derec-crypto-core-grpc
[INFO] tweaked toml for git repo https://github.com/scholtz/derec-crypto-core-grpc written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/scholtz/derec-crypto-core-grpc on toolchain 8a2f6fe57adadb246778b8d41925d3dc46d468cb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a2f6fe57adadb246778b8d41925d3dc46d468cb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/scholtz/derec-crypto-core-grpc 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" "+8a2f6fe57adadb246778b8d41925d3dc46d468cb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking scholtz/derec-crypto-core-grpc against try#8a2f6fe57adadb246778b8d41925d3dc46d468cb for pr-158320
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscholtz%2Fderec-crypto-core-grpc" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/scholtz/derec-crypto-core-grpc
[INFO] finished tweaking git repo https://github.com/scholtz/derec-crypto-core-grpc
[INFO] tweaked toml for git repo https://github.com/scholtz/derec-crypto-core-grpc written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/scholtz/derec-crypto-core-grpc on toolchain 8a2f6fe57adadb246778b8d41925d3dc46d468cb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a2f6fe57adadb246778b8d41925d3dc46d468cb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/scholtz/derec-crypto-core-grpc 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" "+8a2f6fe57adadb246778b8d41925d3dc46d468cb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prost-build v0.13.3
[INFO] [stderr]   Downloaded prost-types v0.13.3
[INFO] [stderr]   Downloaded prost-derive v0.13.3
[INFO] [stderr]   Downloaded prost v0.13.3
[INFO] [stderr]   Downloaded prettyplease v0.2.25
[INFO] [stderr]   Downloaded itoa v1.0.13
[INFO] [stderr]   Downloaded getrandom v0.2.14
[INFO] [stderr]   Downloaded thiserror v2.0.3
[INFO] [stderr]   Downloaded thiserror-impl v2.0.3
[INFO] [stderr]   Downloaded allocator-api2 v0.2.20
[INFO] [stderr]   Downloaded x448 v0.6.0
[INFO] [stderr]   Downloaded protobuf-support v3.7.1
[INFO] [stderr]   Downloaded twofish v0.7.1
[INFO] [stderr]   Downloaded ocb3 v0.1.0
[INFO] [stderr]   Downloaded iter-read v1.1.0
[INFO] [stderr]   Downloaded dbl v0.3.2
[INFO] [stderr]   Downloaded tower v0.5.1
[INFO] [stderr]   Downloaded idea v0.5.1
[INFO] [stderr]   Downloaded eax v0.5.0
[INFO] [stderr]   Downloaded dsa v0.6.3
[INFO] [stderr]   Downloaded cmac v0.7.2
[INFO] [stderr]   Downloaded crc24 v0.1.6
[INFO] [stderr]   Downloaded hyper v1.5.1
[INFO] [stderr]   Downloaded des v0.8.1
[INFO] [stderr]   Downloaded aes-kw v0.2.1
[INFO] [stderr]   Downloaded pem v3.0.4
[INFO] [stderr]   Downloaded hashbrown v0.15.1
[INFO] [stderr]   Downloaded buffer-redux v1.0.2
[INFO] [stderr]   Downloaded cfb-mode v0.8.2
[INFO] [stderr]   Downloaded ecies v0.2.7
[INFO] [stderr]   Downloaded cast5 v0.11.1
[INFO] [stderr]   Downloaded camellia v0.1.0
[INFO] [stderr]   Downloaded enum-ordinalize v4.3.0
[INFO] [stderr]   Downloaded enum-ordinalize-derive v4.3.1
[INFO] [stderr]   Downloaded protobuf v3.7.1
[INFO] [stderr]   Downloaded ed448-goldilocks v0.7.2
[INFO] [stderr]   Downloaded fiat-crypto v0.1.20
[INFO] [stderr]   Downloaded bstr v1.11.0
[INFO] [stderr]   Downloaded ark-bls12-381 v0.5.0
[INFO] [stderr]   Downloaded tokio v1.41.1
[INFO] [stderr]   Downloaded pgp v0.14.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 632781979fd0c90cb4a6fb6140e77c71b1fb35f00f51e85413c40fef12d50e7d
[INFO] running `Command { std: "docker" "start" "632781979fd0c90cb4a6fb6140e77c71b1fb35f00f51e85413c40fef12d50e7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "632781979fd0c90cb4a6fb6140e77c71b1fb35f00f51e85413c40fef12d50e7d" "/opt/rustwide/cargo-home/bin/cargo" "+8a2f6fe57adadb246778b8d41925d3dc46d468cb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "632781979fd0c90cb4a6fb6140e77c71b1fb35f00f51e85413c40fef12d50e7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "632781979fd0c90cb4a6fb6140e77c71b1fb35f00f51e85413c40fef12d50e7d" "/opt/rustwide/cargo-home/bin/cargo" "+8a2f6fe57adadb246778b8d41925d3dc46d468cb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.164
[INFO] [stderr]    Compiling portable-atomic v1.10.0
[INFO] [stderr]     Checking critical-section v1.2.0
[INFO] [stderr]     Checking cpufeatures v0.2.16
[INFO] [stderr]     Checking base64ct v1.6.0
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling libm v0.2.11
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling anyhow v1.0.93
[INFO] [stderr]    Compiling hashbrown v0.15.1
[INFO] [stderr]    Compiling syn v2.0.89
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]     Checking itoa v1.0.13
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking allocator-api2 v0.2.20
[INFO] [stderr]    Compiling either v1.13.0
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[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]     Checking http v1.1.0
[INFO] [stderr]     Checking pem-rfc7468 v0.7.0
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling rustix v0.38.41
[INFO] [stderr]    Compiling cc v1.2.1
[INFO] [stderr]    Compiling prettyplease v0.2.25
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling libsecp256k1-core v0.3.0
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling bytes v1.8.0
[INFO] [stderr]     Checking once_cell v1.20.2
[INFO] [stderr]    Compiling httparse v1.9.5
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling indexmap v2.6.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]    Compiling curve25519-dalek v4.1.3
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling fixedbitset v0.4.2
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[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling num-bigint-dig v0.8.4
[INFO] [stderr]    Compiling rustversion v1.0.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling fastrand v2.2.0
[INFO] [stderr]    Compiling toml_edit v0.19.15
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[INFO] [stderr]    Compiling libsecp256k1-gen-ecmult v0.3.0
[INFO] [stderr]    Compiling libsecp256k1-gen-genmult v0.3.0
[INFO] [stderr]     Checking group v0.13.0
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[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking http-body-util v0.1.2
[INFO] [stderr]    Compiling libsecp256k1 v0.7.1
[INFO] [stderr]    Compiling openssl v0.10.68
[INFO] [stderr]     Checking fiat-crypto v0.1.20
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[INFO] [stderr]    Compiling openssl-sys v0.9.104
[INFO] [stderr]     Checking overload v0.1.1
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[INFO] [stderr]     Checking keccak v0.1.5
[INFO] [stderr]    Compiling tempfile v3.14.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling serde_json v1.0.133
[INFO] [stderr]    Compiling thiserror v2.0.3
[INFO] [stderr]    Compiling protobuf v3.7.1
[INFO] [stderr]     Checking flate2 v1.0.35
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
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[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking bstr v1.11.0
[INFO] [stderr]     Checking buffer-redux v1.0.2
[INFO] [stderr]     Checking bitfield v0.14.0
[INFO] [stderr]     Checking iter-read v1.1.0
[INFO] [stderr]     Checking pem v3.0.4
[INFO] [stderr]     Checking data-encoding v2.6.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling num_enum_derive v0.5.11
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling serde_derive v1.0.215
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling prost-derive v0.13.3
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling enum-ordinalize-derive v4.3.1
[INFO] [stderr]    Compiling ark-serialize-derive v0.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling curve25519-dalek-derive v0.1.1
[INFO] [stderr]    Compiling ark-ff-asm v0.5.0
[INFO] [stderr]    Compiling ark-ff-macros v0.5.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.7
[INFO] [stderr]    Compiling async-trait v0.1.83
[INFO] [stderr]    Compiling enum-ordinalize v4.3.0
[INFO] [stderr]    Compiling educe v0.6.0
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling derive_more-impl v1.0.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]     Checking num_enum v0.5.11
[INFO] [stderr]    Compiling thiserror-impl v2.0.3
[INFO] [stderr]     Checking der v0.7.9
[INFO] [stderr]     Checking tokio v1.41.1
[INFO] [stderr]     Checking thiserror v1.0.69
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[INFO] [stderr]     Checking zerocopy v0.7.35
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[INFO] [stderr]     Checking protobuf-support v3.7.1
[INFO] [stderr]     Checking spki v0.7.3
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking crypto-bigint v0.5.5
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking aead v0.5.2
[INFO] [stderr]     Checking pkcs8 v0.10.2
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking sec1 v0.7.3
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[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking hmac v0.12.1
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[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking hmac v0.8.1
[INFO] [stderr]     Checking hkdf v0.12.4
[INFO] [stderr]     Checking rfc6979 v0.4.0
[INFO] [stderr]     Checking polyval v0.6.2
[INFO] [stderr]     Checking ctr v0.9.2
[INFO] [stderr]     Checking aes v0.8.4
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking dbl v0.3.2
[INFO] [stderr]     Checking ghash v0.5.1
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking cmac v0.7.2
[INFO] [stderr]     Checking hmac-drbg v0.3.0
[INFO] [stderr]     Checking ed25519 v2.2.3
[INFO] [stderr]     Checking ed448-goldilocks v0.7.2
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling prost v0.13.3
[INFO] [stderr]     Checking blake2 v0.10.6
[INFO] [stderr]     Checking pkcs1 v0.7.5
[INFO] [stderr]    Compiling prost-types v0.13.3
[INFO] [stderr]     Checking pin-project v1.1.7
[INFO] [stderr]     Checking x448 v0.6.0
[INFO] [stderr]     Checking aes-kw v0.2.1
[INFO] [stderr]     Checking aes-gcm v0.10.3
[INFO] [stderr]     Checking sha1-checked v0.10.0
[INFO] [stderr]     Checking eax v0.5.0
[INFO] [stderr]     Checking ocb3 v0.1.0
[INFO] [stderr]     Checking argon2 v0.5.3
[INFO] [stderr]     Checking x25519-dalek v2.0.1
[INFO] [stderr]     Checking ed25519-dalek v2.1.1
[INFO] [stderr]     Checking idea v0.5.1
[INFO] [stderr]     Checking cfb-mode v0.8.2
[INFO] [stderr]     Checking blowfish v0.9.1
[INFO] [stderr]     Checking twofish v0.7.1
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]     Checking camellia v0.1.0
[INFO] [stderr]     Checking des v0.8.1
[INFO] [stderr]     Checking cast5 v0.11.1
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]     Checking ripemd v0.1.3
[INFO] [stderr]     Checking md-5 v0.10.6
[INFO] [stderr]     Checking derive_more v1.0.0
[INFO] [stderr]     Checking block-padding v0.3.3
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling derive_builder_core v0.20.2
[INFO] [stderr]     Checking ark-std v0.5.0
[INFO] [stderr]     Checking ark-serialize v0.5.0
[INFO] [stderr]     Checking elliptic-curve v0.13.8
[INFO] [stderr]     Checking ark-ff v0.5.0
[INFO] [stderr]     Checking ecdsa v0.16.9
[INFO] [stderr]     Checking primeorder v0.13.6
[INFO] [stderr]     Checking p256 v0.13.2
[INFO] [stderr]     Checking p521 v0.13.3
[INFO] [stderr]     Checking p384 v0.13.0
[INFO] [stderr]     Checking k256 v0.13.4
[INFO] [stderr]    Compiling derive_builder_macro v0.20.2
[INFO] [stderr]    Compiling prost-build v0.13.3
[INFO] [stderr]     Checking derive_builder v0.20.2
[INFO] [stderr]    Compiling tonic-build v0.12.3
[INFO] [stderr]     Checking axum v0.7.9
[INFO] [stderr]    Compiling derec-crypto-core-grpc v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tokio-util v0.7.12
[INFO] [stderr]     Checking tokio-stream v0.1.16
[INFO] [stderr]     Checking h2 v0.4.7
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking rsa v0.9.6
[INFO] [stderr]     Checking dsa v0.6.3
[INFO] [stderr]     Checking pgp v0.14.0
[INFO] [stderr]     Checking hyper v1.5.1
[INFO] [stderr]     Checking ecies v0.2.7
[INFO] [stderr]     Checking ark-poly v0.5.0
[INFO] [stderr]     Checking hyper-util v0.1.10
[INFO] [stderr]     Checking ark-ec v0.5.0
[INFO] [stderr]     Checking hyper-timeout v0.5.2
[INFO] [stderr]     Checking tonic v0.12.3
[INFO] [stderr]     Checking ark-bls12-381 v0.5.0
[INFO] [stdout] warning: unused variable: `alice_encryption_pk`
[INFO] [stdout]   --> src/secure_channel/mod.rs:63:14
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let (alice_encryption_pk, alice_encryption_sk) =
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_alice_encryption_pk`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `alice_encryption_sk`
[INFO] [stdout]   --> src/secure_channel/mod.rs:63:35
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let (alice_encryption_pk, alice_encryption_sk) =
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_alice_encryption_sk`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bob_signing_vk`
[INFO] [stdout]   --> src/secure_channel/mod.rs:66:14
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let (bob_signing_vk, bob_signing_sk) =
[INFO] [stdout]    |              ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bob_signing_vk`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bob_signing_sk`
[INFO] [stdout]   --> src/secure_channel/mod.rs:66:30
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let (bob_signing_vk, bob_signing_sk) =
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bob_signing_sk`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: num-bigint-dig v0.8.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "632781979fd0c90cb4a6fb6140e77c71b1fb35f00f51e85413c40fef12d50e7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "632781979fd0c90cb4a6fb6140e77c71b1fb35f00f51e85413c40fef12d50e7d", kill_on_drop: false }`
[INFO] [stdout] 632781979fd0c90cb4a6fb6140e77c71b1fb35f00f51e85413c40fef12d50e7d
