[INFO] fetching crate allium 0.1.3...
[INFO] checking allium-0.1.3 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate allium 0.1.3 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate allium 0.1.3 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate allium 0.1.3
[INFO] finished tweaking crates.io crate allium 0.1.3
[INFO] tweaked toml for crates.io crate allium 0.1.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate allium 0.1.3 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-stream v0.1.7
[INFO] [stderr]   Downloaded tokio-macros v1.3.0
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[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1779e8121bba5ee14bb9950584991c2d47fb6496b12401817aba8abe4ba35581
[INFO] running `Command { std: "docker" "start" "-a" "1779e8121bba5ee14bb9950584991c2d47fb6496b12401817aba8abe4ba35581", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1779e8121bba5ee14bb9950584991c2d47fb6496b12401817aba8abe4ba35581", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1779e8121bba5ee14bb9950584991c2d47fb6496b12401817aba8abe4ba35581", kill_on_drop: false }`
[INFO] [stdout] 1779e8121bba5ee14bb9950584991c2d47fb6496b12401817aba8abe4ba35581
[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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e496b2cf20b06df7c29d14c1933a9ef2e4b4beecc088203bdd2d3022f65987f1
[INFO] running `Command { std: "docker" "start" "-a" "e496b2cf20b06df7c29d14c1933a9ef2e4b4beecc088203bdd2d3022f65987f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling tokio v1.8.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking tokio-stream v0.1.7
[INFO] [stderr]     Checking allium v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `crypto` is imported redundantly
[INFO] [stdout]    --> src/onion/protocol.rs:713:32
[INFO] [stdout]     |
[INFO] [stdout] 712 |     use super::*;
[INFO] [stdout]     |         -------- the item `crypto` is already imported here
[INFO] [stdout] 713 |     use crate::onion::crypto::{self, EphemeralPrivateKey};
[INFO] [stdout]     |                                ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SIGNATURE_LEN` is never used
[INFO] [stdout]   --> src/onion/crypto/crypto_openssl.rs:18:18
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub(crate) const SIGNATURE_LEN: usize = 512;
[INFO] [stdout]    |                  ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_bytes` is never used
[INFO] [stdout]    --> src/onion/crypto/crypto_openssl.rs:137:19
[INFO] [stdout]     |
[INFO] [stdout] 120 | impl SessionKey {
[INFO] [stdout]     | --------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub(crate) fn from_bytes(bytes: &[u8]) -> Result<Self> {
[INFO] [stdout]     |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Destroy` is never constructed
[INFO] [stdout]   --> src/onion/tunnel.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub(crate) enum Event {
[INFO] [stdout]    |                 ----- variant in this enum
[INFO] [stdout] 50 |     Switchover,
[INFO] [stdout] 51 |     Destroy,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Event` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/onion.rs:283:25
[INFO] [stdout]     |
[INFO] [stdout] 283 |                         tunnel.write(data);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 283 |                         let _ = tunnel.write(data);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Destroy` is never constructed
[INFO] [stdout]   --> src/onion/tunnel.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub(crate) enum Event {
[INFO] [stdout]    |                 ----- variant in this enum
[INFO] [stdout] 50 |     Switchover,
[INFO] [stdout] 51 |     Destroy,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Event` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ROUND_DURATION` is never used
[INFO] [stdout]   --> src/onion/tests.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 | const ROUND_DURATION: Duration = Duration::from_secs(5);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/onion.rs:283:25
[INFO] [stdout]     |
[INFO] [stdout] 283 |                         tunnel.write(data);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 283 |                         let _ = tunnel.write(data);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.69s
[INFO] running `Command { std: "docker" "inspect" "e496b2cf20b06df7c29d14c1933a9ef2e4b4beecc088203bdd2d3022f65987f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e496b2cf20b06df7c29d14c1933a9ef2e4b4beecc088203bdd2d3022f65987f1", kill_on_drop: false }`
[INFO] [stdout] e496b2cf20b06df7c29d14c1933a9ef2e4b4beecc088203bdd2d3022f65987f1
[INFO] checking allium-0.1.3 against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] extracting crate allium 0.1.3 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate allium 0.1.3 on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate allium 0.1.3
[INFO] finished tweaking crates.io crate allium 0.1.3
[INFO] tweaked toml for crates.io crate allium 0.1.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate allium 0.1.3 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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f0cea1a09b85c513a539966b92790feffa8e561edfc8ebfc6627efab7c1e2ca
[INFO] running `Command { std: "docker" "start" "-a" "1f0cea1a09b85c513a539966b92790feffa8e561edfc8ebfc6627efab7c1e2ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f0cea1a09b85c513a539966b92790feffa8e561edfc8ebfc6627efab7c1e2ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f0cea1a09b85c513a539966b92790feffa8e561edfc8ebfc6627efab7c1e2ca", kill_on_drop: false }`
[INFO] [stdout] 1f0cea1a09b85c513a539966b92790feffa8e561edfc8ebfc6627efab7c1e2ca
[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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 613a8bf8a7940dfa57f22017ac35f23395a83b53254a288b27b0ace6bc2288b9
[INFO] running `Command { std: "docker" "start" "-a" "613a8bf8a7940dfa57f22017ac35f23395a83b53254a288b27b0ace6bc2288b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling tokio v1.8.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking tokio-stream v0.1.7
[INFO] [stderr]     Checking allium v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `crypto` is imported redundantly
[INFO] [stdout]    --> src/onion/protocol.rs:713:32
[INFO] [stdout]     |
[INFO] [stdout] 712 |     use super::*;
[INFO] [stdout]     |         -------- the item `crypto` is already imported here
[INFO] [stdout] 713 |     use crate::onion::crypto::{self, EphemeralPrivateKey};
[INFO] [stdout]     |                                ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SIGNATURE_LEN` is never used
[INFO] [stdout]   --> src/onion/crypto/crypto_openssl.rs:18:18
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub(crate) const SIGNATURE_LEN: usize = 512;
[INFO] [stdout]    |                  ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_bytes` is never used
[INFO] [stdout]    --> src/onion/crypto/crypto_openssl.rs:137:19
[INFO] [stdout]     |
[INFO] [stdout] 120 | impl SessionKey {
[INFO] [stdout]     | --------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub(crate) fn from_bytes(bytes: &[u8]) -> Result<Self> {
[INFO] [stdout]     |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Destroy` is never constructed
[INFO] [stdout]   --> src/onion/tunnel.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub(crate) enum Event {
[INFO] [stdout]    |                 ----- variant in this enum
[INFO] [stdout] 50 |     Switchover,
[INFO] [stdout] 51 |     Destroy,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Event` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/onion.rs:283:25
[INFO] [stdout]     |
[INFO] [stdout] 283 |                         tunnel.write(data);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 283 |                         let _ = tunnel.write(data);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Destroy` is never constructed
[INFO] [stdout]   --> src/onion/tunnel.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub(crate) enum Event {
[INFO] [stdout]    |                 ----- variant in this enum
[INFO] [stdout] 50 |     Switchover,
[INFO] [stdout] 51 |     Destroy,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Event` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ROUND_DURATION` is never used
[INFO] [stdout]   --> src/onion/tests.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 | const ROUND_DURATION: Duration = Duration::from_secs(5);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/onion.rs:283:25
[INFO] [stdout]     |
[INFO] [stdout] 283 |                         tunnel.write(data);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 283 |                         let _ = tunnel.write(data);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.82s
[INFO] running `Command { std: "docker" "inspect" "613a8bf8a7940dfa57f22017ac35f23395a83b53254a288b27b0ace6bc2288b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "613a8bf8a7940dfa57f22017ac35f23395a83b53254a288b27b0ace6bc2288b9", kill_on_drop: false }`
[INFO] [stdout] 613a8bf8a7940dfa57f22017ac35f23395a83b53254a288b27b0ace6bc2288b9
