[INFO] fetching crate perfcnt 0.8.0...
[INFO] checking perfcnt-0.8.0 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] extracting crate perfcnt 0.8.0 into /workspace/builds/worker-4-tc1/source
[INFO] removed /workspace/builds/worker-4-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate perfcnt 0.8.0
[INFO] finished tweaking crates.io crate perfcnt 0.8.0
[INFO] tweaked toml for crates.io crate perfcnt 0.8.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate perfcnt 0.8.0 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate perfcnt 0.8.0 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] [stderr]   Downloaded bstr v0.2.15
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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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed73480caa03d49a5fe9ea9b496c7f5a9857877b2d7d43c0c926a9fa116d371f
[INFO] running `Command { std: "docker" "start" "-a" "ed73480caa03d49a5fe9ea9b496c7f5a9857877b2d7d43c0c926a9fa116d371f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed73480caa03d49a5fe9ea9b496c7f5a9857877b2d7d43c0c926a9fa116d371f", kill_on_drop: false }`
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[INFO] [stdout] 5e7b87d2d62d4c226addf9deb3bf4be9bdf5e72a51e843683416fd4275cb3504
[INFO] running `Command { std: "docker" "start" "-a" "5e7b87d2d62d4c226addf9deb3bf4be9bdf5e72a51e843683416fd4275cb3504", kill_on_drop: false }`
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[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling serde v1.0.136
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[INFO] [stderr]     Checking perfcnt v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `attributes` is never read
[INFO] [stdout]    --> src/linux/mod.rs:751:5
[INFO] [stdout]     |
[INFO] [stdout] 748 | pub struct PerfCounter {
[INFO] [stdout]     |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 751 |     attributes: perf_format::EventAttr,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pc` is never read
[INFO] [stdout]    --> src/linux/mod.rs:799:5
[INFO] [stdout]     |
[INFO] [stdout] 798 | pub struct SamplingPerfCounter {
[INFO] [stdout]     |            ------------------- field in this struct
[INFO] [stdout] 799 |     pc: PerfCounter,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `misc` and `size` are never read
[INFO] [stdout]    --> src/linux/mod.rs:847:5
[INFO] [stdout]     |
[INFO] [stdout] 845 | struct EventHeader {
[INFO] [stdout]     |        ----------- fields in this struct
[INFO] [stdout] 846 |     event_type: u32,
[INFO] [stdout] 847 |     misc: u16,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 848 |     size: u16,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EventHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `header`, `id`, and `lost` are never read
[INFO] [stdout]    --> src/linux/mod.rs:908:5
[INFO] [stdout]     |
[INFO] [stdout] 907 | pub struct LostRecord {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] 908 |     header: EventHeader,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 909 |     /// Unique event ID of the samples that were lost.
[INFO] [stdout] 910 |     id: u64,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 911 |     /// The number of events that were lost.
[INFO] [stdout] 912 |     lost: u64,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LostRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `header`, `pid`, `tid`, and `comm` are never read
[INFO] [stdout]    --> src/linux/mod.rs:932:5
[INFO] [stdout]     |
[INFO] [stdout] 931 | pub struct CommRecord {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] 932 |     header: EventHeader,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 933 |     pid: u32,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 934 |     tid: u32,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 935 |     comm: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CommRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `header`, `pid`, `ppid`, `tid`, `ptid`, and `time` are never read
[INFO] [stdout]    --> src/linux/mod.rs:963:5
[INFO] [stdout]     |
[INFO] [stdout] 962 | pub struct ExitRecord {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] 963 |     header: EventHeader,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 964 |     pid: u32,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 965 |     ppid: u32,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 966 |     tid: u32,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 967 |     ptid: u32,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 968 |     time: u64,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ExitRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `header`, `pid`, `ppid`, `tid`, `ptid`, and `time` are never read
[INFO] [stdout]     --> src/linux/mod.rs:1020:5
[INFO] [stdout]      |
[INFO] [stdout] 1019 | pub struct ForkRecord {
[INFO] [stdout]      |            ---------- fields in this struct
[INFO] [stdout] 1020 |     header: EventHeader,
[INFO] [stdout]      |     ^^^^^^
[INFO] [stdout] 1021 |     pid: u32,
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 1022 |     ppid: u32,
[INFO] [stdout]      |     ^^^^
[INFO] [stdout] 1023 |     tid: u32,
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 1024 |     ptid: u32,
[INFO] [stdout]      |     ^^^^
[INFO] [stdout] 1025 |     time: u64,
[INFO] [stdout]      |     ^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `ForkRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `from`, `to`, and `flags` are never read
[INFO] [stdout]     --> src/linux/mod.rs:1076:9
[INFO] [stdout]      |
[INFO] [stdout] 1075 | struct BranchEntry {
[INFO] [stdout]      |        ----------- fields in this struct
[INFO] [stdout] 1076 |     pub from: u64,
[INFO] [stdout]      |         ^^^^
[INFO] [stdout] 1077 |     pub to: u64,
[INFO] [stdout]      |         ^^
[INFO] [stdout] 1078 |     flags: u64,
[INFO] [stdout]      |     ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `BranchEntry` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]     --> src/linux/mod.rs:1084:5
[INFO] [stdout]      |
[INFO] [stdout] 1083 | pub struct SampleRecord {
[INFO] [stdout]      |            ------------ fields in this struct
[INFO] [stdout] 1084 |     header: EventHeader,
[INFO] [stdout]      |     ^^^^^^
[INFO] [stdout] 1085 |     /// if PERF_SAMPLE_IP
[INFO] [stdout] 1086 |     ip: u64,
[INFO] [stdout]      |     ^^
[INFO] [stdout] 1087 |     /// if PERF_SAMPLE_TID
[INFO] [stdout] 1088 |     pid: u32,
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 1089 |     /// if PERF_SAMPLE_TID
[INFO] [stdout] 1090 |     tid: u32,
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 1091 |     /// if PERF_SAMPLE_TIME
[INFO] [stdout] 1092 |     time: u64,
[INFO] [stdout]      |     ^^^^
[INFO] [stdout] 1093 |     /// if PERF_SAMPLE_ADDR
[INFO] [stdout] 1094 |     addr: u64,
[INFO] [stdout]      |     ^^^^
[INFO] [stdout] 1095 |     /// if PERF_SAMPLE_ID
[INFO] [stdout] 1096 |     id: u64,
[INFO] [stdout]      |     ^^
[INFO] [stdout] 1097 |     /// if PERF_SAMPLE_STREAM_ID
[INFO] [stdout] 1098 |     stream_id: u64,
[INFO] [stdout]      |     ^^^^^^^^^
[INFO] [stdout] 1099 |     /// if PERF_SAMPLE_CPU
[INFO] [stdout] 1100 |     cpu: u32,
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 1101 |     /// if PERF_SAMPLE_CPU
[INFO] [stdout] 1102 |     res: u32,
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 1103 |     /// if PERF_SAMPLE_PERIOD
[INFO] [stdout] 1104 |     period: u64,
[INFO] [stdout]      |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1109 |     v: FileReadFormat,
[INFO] [stdout]      |     ^
[INFO] [stdout] ...
[INFO] [stdout] 1113 |     ips: Vec<u64>,
[INFO] [stdout]      |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 1117 |     raw_sample: Vec<u8>,
[INFO] [stdout]      |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1121 |     lbr: Vec<BranchEntry>,
[INFO] [stdout]      |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 1124 |     abi: u64,
[INFO] [stdout]      |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 1128 |     regs: Vec<u64>,
[INFO] [stdout]      |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1132 |     user_stack: Vec<u8>,
[INFO] [stdout]      |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1135 |     dyn_size: u64,
[INFO] [stdout]      |     ^^^^^^^^
[INFO] [stdout] 1136 |     /// u64   weight;     /* if PERF_SAMPLE_WEIGHT */
[INFO] [stdout] 1137 |     weight: u64,
[INFO] [stdout]      |     ^^^^^^
[INFO] [stdout] 1138 |     /// u64   data_src;   /* if PERF_SAMPLE_DATA_SRC */
[INFO] [stdout] 1139 |     data_str: u64,
[INFO] [stdout]      |     ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `SampleRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/linux/perf_file.rs:97:17
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn data(&self) -> PerfFileEventDataIter {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn data(&self) -> PerfFileEventDataIter<'_> {
[INFO] [stdout]    |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `attributes` is never read
[INFO] [stdout]    --> src/linux/mod.rs:751:5
[INFO] [stdout]     |
[INFO] [stdout] 748 | pub struct PerfCounter {
[INFO] [stdout]     |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 751 |     attributes: perf_format::EventAttr,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pc` is never read
[INFO] [stdout]    --> src/linux/mod.rs:799:5
[INFO] [stdout]     |
[INFO] [stdout] 798 | pub struct SamplingPerfCounter {
[INFO] [stdout]     |            ------------------- field in this struct
[INFO] [stdout] 799 |     pc: PerfCounter,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `misc` and `size` are never read
[INFO] [stdout]    --> src/linux/mod.rs:847:5
[INFO] [stdout]     |
[INFO] [stdout] 845 | struct EventHeader {
[INFO] [stdout]     |        ----------- fields in this struct
[INFO] [stdout] 846 |     event_type: u32,
[INFO] [stdout] 847 |     misc: u16,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 848 |     size: u16,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EventHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `header`, `id`, and `lost` are never read
[INFO] [stdout]    --> src/linux/mod.rs:908:5
[INFO] [stdout]     |
[INFO] [stdout] 907 | pub struct LostRecord {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] 908 |     header: EventHeader,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 909 |     /// Unique event ID of the samples that were lost.
[INFO] [stdout] 910 |     id: u64,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 911 |     /// The number of events that were lost.
[INFO] [stdout] 912 |     lost: u64,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LostRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `header`, `pid`, `tid`, and `comm` are never read
[INFO] [stdout]    --> src/linux/mod.rs:932:5
[INFO] [stdout]     |
[INFO] [stdout] 931 | pub struct CommRecord {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] 932 |     header: EventHeader,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 933 |     pid: u32,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 934 |     tid: u32,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 935 |     comm: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CommRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `header`, `pid`, `ppid`, `tid`, `ptid`, and `time` are never read
[INFO] [stdout]    --> src/linux/mod.rs:963:5
[INFO] [stdout]     |
[INFO] [stdout] 962 | pub struct ExitRecord {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] 963 |     header: EventHeader,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 964 |     pid: u32,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 965 |     ppid: u32,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 966 |     tid: u32,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 967 |     ptid: u32,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 968 |     time: u64,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ExitRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `header`, `pid`, `ppid`, `tid`, `ptid`, and `time` are never read
[INFO] [stdout]     --> src/linux/mod.rs:1020:5
[INFO] [stdout]      |
[INFO] [stdout] 1019 | pub struct ForkRecord {
[INFO] [stdout]      |            ---------- fields in this struct
[INFO] [stdout] 1020 |     header: EventHeader,
[INFO] [stdout]      |     ^^^^^^
[INFO] [stdout] 1021 |     pid: u32,
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 1022 |     ppid: u32,
[INFO] [stdout]      |     ^^^^
[INFO] [stdout] 1023 |     tid: u32,
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 1024 |     ptid: u32,
[INFO] [stdout]      |     ^^^^
[INFO] [stdout] 1025 |     time: u64,
[INFO] [stdout]      |     ^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `ForkRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `from`, `to`, and `flags` are never read
[INFO] [stdout]     --> src/linux/mod.rs:1076:9
[INFO] [stdout]      |
[INFO] [stdout] 1075 | struct BranchEntry {
[INFO] [stdout]      |        ----------- fields in this struct
[INFO] [stdout] 1076 |     pub from: u64,
[INFO] [stdout]      |         ^^^^
[INFO] [stdout] 1077 |     pub to: u64,
[INFO] [stdout]      |         ^^
[INFO] [stdout] 1078 |     flags: u64,
[INFO] [stdout]      |     ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `BranchEntry` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]     --> src/linux/mod.rs:1084:5
[INFO] [stdout]      |
[INFO] [stdout] 1083 | pub struct SampleRecord {
[INFO] [stdout]      |            ------------ fields in this struct
[INFO] [stdout] 1084 |     header: EventHeader,
[INFO] [stdout]      |     ^^^^^^
[INFO] [stdout] 1085 |     /// if PERF_SAMPLE_IP
[INFO] [stdout] 1086 |     ip: u64,
[INFO] [stdout]      |     ^^
[INFO] [stdout] 1087 |     /// if PERF_SAMPLE_TID
[INFO] [stdout] 1088 |     pid: u32,
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 1089 |     /// if PERF_SAMPLE_TID
[INFO] [stdout] 1090 |     tid: u32,
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 1091 |     /// if PERF_SAMPLE_TIME
[INFO] [stdout] 1092 |     time: u64,
[INFO] [stdout]      |     ^^^^
[INFO] [stdout] 1093 |     /// if PERF_SAMPLE_ADDR
[INFO] [stdout] 1094 |     addr: u64,
[INFO] [stdout]      |     ^^^^
[INFO] [stdout] 1095 |     /// if PERF_SAMPLE_ID
[INFO] [stdout] 1096 |     id: u64,
[INFO] [stdout]      |     ^^
[INFO] [stdout] 1097 |     /// if PERF_SAMPLE_STREAM_ID
[INFO] [stdout] 1098 |     stream_id: u64,
[INFO] [stdout]      |     ^^^^^^^^^
[INFO] [stdout] 1099 |     /// if PERF_SAMPLE_CPU
[INFO] [stdout] 1100 |     cpu: u32,
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 1101 |     /// if PERF_SAMPLE_CPU
[INFO] [stdout] 1102 |     res: u32,
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 1103 |     /// if PERF_SAMPLE_PERIOD
[INFO] [stdout] 1104 |     period: u64,
[INFO] [stdout]      |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1109 |     v: FileReadFormat,
[INFO] [stdout]      |     ^
[INFO] [stdout] ...
[INFO] [stdout] 1113 |     ips: Vec<u64>,
[INFO] [stdout]      |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 1117 |     raw_sample: Vec<u8>,
[INFO] [stdout]      |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1121 |     lbr: Vec<BranchEntry>,
[INFO] [stdout]      |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 1124 |     abi: u64,
[INFO] [stdout]      |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 1128 |     regs: Vec<u64>,
[INFO] [stdout]      |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1132 |     user_stack: Vec<u8>,
[INFO] [stdout]      |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1135 |     dyn_size: u64,
[INFO] [stdout]      |     ^^^^^^^^
[INFO] [stdout] 1136 |     /// u64   weight;     /* if PERF_SAMPLE_WEIGHT */
[INFO] [stdout] 1137 |     weight: u64,
[INFO] [stdout]      |     ^^^^^^
[INFO] [stdout] 1138 |     /// u64   data_src;   /* if PERF_SAMPLE_DATA_SRC */
[INFO] [stdout] 1139 |     data_str: u64,
[INFO] [stdout]      |     ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `SampleRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/linux/perf_file.rs:97:17
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn data(&self) -> PerfFileEventDataIter {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn data(&self) -> PerfFileEventDataIter<'_> {
[INFO] [stdout]    |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.28s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "5e7b87d2d62d4c226addf9deb3bf4be9bdf5e72a51e843683416fd4275cb3504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e7b87d2d62d4c226addf9deb3bf4be9bdf5e72a51e843683416fd4275cb3504", kill_on_drop: false }`
[INFO] [stdout] 5e7b87d2d62d4c226addf9deb3bf4be9bdf5e72a51e843683416fd4275cb3504
