[INFO] fetching crate rustscope 0.3.0...
[INFO] checking rustscope-0.3.0 against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] extracting crate rustscope 0.3.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate rustscope 0.3.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rustscope 0.3.0
[INFO] tweaked toml for crates.io crate rustscope 0.3.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustscope 0.3.0 on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rustscope 0.3.0 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" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:71:1
[INFO] [stderr]    |
[INFO] [stderr] 71 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:67:12
[INFO] [stderr]    |
[INFO] [stderr] 67 | homepage = "https://github.com/anurag/rustscope"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 72 | repository = "https://github.com/anurag/rustscope"
[INFO] [stderr]    |              -------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `rustscope` (manifest) generated 2 warnings
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustscope-macros v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 336b46d983e85e08904f532424c4bbedd441f6e5aeb8ba5a76a1fe15c63b185a
[INFO] running `Command { std: "docker" "start" "336b46d983e85e08904f532424c4bbedd441f6e5aeb8ba5a76a1fe15c63b185a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "336b46d983e85e08904f532424c4bbedd441f6e5aeb8ba5a76a1fe15c63b185a", 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" "336b46d983e85e08904f532424c4bbedd441f6e5aeb8ba5a76a1fe15c63b185a" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "336b46d983e85e08904f532424c4bbedd441f6e5aeb8ba5a76a1fe15c63b185a", 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" "336b46d983e85e08904f532424c4bbedd441f6e5aeb8ba5a76a1fe15c63b185a" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:71:1
[INFO] [stderr]    |
[INFO] [stderr] 71 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:67:12
[INFO] [stderr]    |
[INFO] [stderr] 67 | homepage = "https://github.com/anurag/rustscope"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 72 | repository = "https://github.com/anurag/rustscope"
[INFO] [stderr]    |              -------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `rustscope` (manifest) generated 2 warnings
[INFO] [stderr]    Compiling libc v0.2.183
[INFO] [stderr]     Checking bitflags v2.11.0
[INFO] [stderr]    Compiling rustscope v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling nix v0.31.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling rustscope-macros v0.3.0
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking ctrlc v3.5.2
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]  --> src/output/writer.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::fs::{File, OpenOptions};
[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: `StackMetrics`
[INFO] [stdout]   --> src/global.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         StackMetrics,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]   --> src/export.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 | use serde::{Deserialize, Serialize};
[INFO] [stdout]    |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]   --> src/features/pprof_export.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 | use std::io::{self, Write};
[INFO] [stdout]    |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]  --> src/output/writer.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::fs::{File, OpenOptions};
[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: `StackMetrics`
[INFO] [stdout]   --> src/global.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         StackMetrics,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]   --> src/export.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 | use serde::{Deserialize, Serialize};
[INFO] [stdout]    |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]   --> src/features/pprof_export.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 | use std::io::{self, Write};
[INFO] [stdout]    |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]   --> src/stats.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     module: &'static str,
[INFO] [stdout]    |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `alloc_start`
[INFO] [stdout]   --> src/stats.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let alloc_start = memory::snapshot();
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_alloc_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/stats.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     for i in 0..iters {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]   --> src/stats.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     module: &'static str,
[INFO] [stdout]    |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `alloc_start`
[INFO] [stdout]   --> src/stats.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let alloc_start = memory::snapshot();
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_alloc_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/stats.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     for i in 0..iters {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `current_call_depth` is never used
[INFO] [stdout]   --> src/collectors/stack.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub fn current_call_depth() -> u32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `measure` is never used
[INFO] [stdout]   --> src/collectors/timing.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub fn measure<T>(f: impl FnOnce() -> T) -> (T, u64) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `NEXT_LOCK_ID` is never used
[INFO] [stdout]   --> src/collectors/locks.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | static NEXT_LOCK_ID: AtomicU64 = AtomicU64::new(1);
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/collectors/locks.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl LockId {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 15 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WaitToken` is never constructed
[INFO] [stdout]   --> src/collectors/locks.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct WaitToken {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HoldToken` is never constructed
[INFO] [stdout]   --> src/collectors/locks.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct HoldToken {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `register_lock` is never used
[INFO] [stdout]   --> src/collectors/locks.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn register_lock(name: &str) -> LockId {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `record_lock_wait_start` is never used
[INFO] [stdout]   --> src/collectors/locks.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn record_lock_wait_start(id: LockId) -> WaitToken {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `record_lock_acquired` is never used
[INFO] [stdout]   --> src/collectors/locks.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn record_lock_acquired(token: WaitToken) -> HoldToken {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `record_lock_released` is never used
[INFO] [stdout]   --> src/collectors/locks.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub fn record_lock_released(token: HoldToken) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `call_index` is never read
[INFO] [stdout]   --> src/global.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct Frame {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 51 |     call_index: u64,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `file`, `line`, and `module` are never read
[INFO] [stdout]    --> src/global.rs:527:5
[INFO] [stdout]     |
[INFO] [stdout] 526 | pub struct ProfileGuard {
[INFO] [stdout]     |            ------------ fields in this struct
[INFO] [stdout] 527 |     name: &'static str,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 528 |     file: &'static str,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 529 |     line: u32,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 530 |     module: &'static str,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `first_seen` is never read
[INFO] [stdout]   --> src/thread_profile.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | struct ThreadEntry {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 64 |     first_seen: Instant,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `SESSION_START` is never used
[INFO] [stdout]   --> src/features/timeline.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | static SESSION_START: Lazy<Instant> = Lazy::new(Instant::now);
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `session_offset_ns` is never used
[INFO] [stdout]    --> src/features/timeline.rs:129:15
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub(crate) fn session_offset_ns() -> u64 {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `current_call_depth` is never used
[INFO] [stdout]   --> src/collectors/stack.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub fn current_call_depth() -> u32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `measure` is never used
[INFO] [stdout]   --> src/collectors/timing.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub fn measure<T>(f: impl FnOnce() -> T) -> (T, u64) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `NEXT_LOCK_ID` is never used
[INFO] [stdout]   --> src/collectors/locks.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | static NEXT_LOCK_ID: AtomicU64 = AtomicU64::new(1);
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/collectors/locks.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl LockId {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 15 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WaitToken` is never constructed
[INFO] [stdout]   --> src/collectors/locks.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct WaitToken {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HoldToken` is never constructed
[INFO] [stdout]   --> src/collectors/locks.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct HoldToken {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `register_lock` is never used
[INFO] [stdout]   --> src/collectors/locks.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn register_lock(name: &str) -> LockId {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `record_lock_wait_start` is never used
[INFO] [stdout]   --> src/collectors/locks.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn record_lock_wait_start(id: LockId) -> WaitToken {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `record_lock_acquired` is never used
[INFO] [stdout]   --> src/collectors/locks.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn record_lock_acquired(token: WaitToken) -> HoldToken {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `record_lock_released` is never used
[INFO] [stdout]   --> src/collectors/locks.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub fn record_lock_released(token: HoldToken) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `call_index` is never read
[INFO] [stdout]   --> src/global.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct Frame {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 51 |     call_index: u64,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `file`, `line`, and `module` are never read
[INFO] [stdout]    --> src/global.rs:527:5
[INFO] [stdout]     |
[INFO] [stdout] 526 | pub struct ProfileGuard {
[INFO] [stdout]     |            ------------ fields in this struct
[INFO] [stdout] 527 |     name: &'static str,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 528 |     file: &'static str,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 529 |     line: u32,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 530 |     module: &'static str,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `first_seen` is never read
[INFO] [stdout]   --> src/thread_profile.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | struct ThreadEntry {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 64 |     first_seen: Instant,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `SESSION_START` is never used
[INFO] [stdout]   --> src/features/timeline.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | static SESSION_START: Lazy<Instant> = Lazy::new(Instant::now);
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `session_offset_ns` is never used
[INFO] [stdout]    --> src/features/timeline.rs:129:15
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub(crate) fn session_offset_ns() -> u64 {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.05s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nix v0.31.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 7`
[INFO] running `Command { std: "docker" "inspect" "336b46d983e85e08904f532424c4bbedd441f6e5aeb8ba5a76a1fe15c63b185a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "336b46d983e85e08904f532424c4bbedd441f6e5aeb8ba5a76a1fe15c63b185a", kill_on_drop: false }`
[INFO] [stdout] 336b46d983e85e08904f532424c4bbedd441f6e5aeb8ba5a76a1fe15c63b185a
