[INFO] crate jvm-hprof 0.0.1 is already in cache
[INFO] testing jvm-hprof-0.0.1 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate jvm-hprof 0.0.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate jvm-hprof 0.0.1 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate jvm-hprof 0.0.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate jvm-hprof 0.0.1
[INFO] tweaked toml for crates.io crate jvm-hprof 0.0.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate jvm-hprof 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5a20b415f038e7e2e0ec9fdf4b6c60cdd0a5e47d01934cafcad1536dab70d061
[INFO] running `"docker" "start" "-a" "5a20b415f038e7e2e0ec9fdf4b6c60cdd0a5e47d01934cafcad1536dab70d061"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling nom v5.0.1
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling getset v0.0.9
[INFO] [stderr]    Compiling jvm-hprof v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: enum is never used: `ConstantPoolEntry`
[INFO] [stderr]    --> src/heap_dump.rs:529:6
[INFO] [stderr]     |
[INFO] [stderr] 529 | enum ConstantPoolEntry {}
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `UnloadClass`
[INFO] [stderr]    --> src/lib.rs:352:8
[INFO] [stderr]     |
[INFO] [stderr] 352 | struct UnloadClass {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `AllocSites`
[INFO] [stderr]    --> src/lib.rs:433:8
[INFO] [stderr]     |
[INFO] [stderr] 433 | struct AllocSites {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `StartThread`
[INFO] [stderr]    --> src/lib.rs:444:8
[INFO] [stderr]     |
[INFO] [stderr] 444 | struct StartThread {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `EndThread`
[INFO] [stderr]    --> src/lib.rs:453:8
[INFO] [stderr]     |
[INFO] [stderr] 453 | struct EndThread {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `HeapSummary`
[INFO] [stderr]    --> src/lib.rs:457:8
[INFO] [stderr]     |
[INFO] [stderr] 457 | struct HeapSummary {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CpuSamples`
[INFO] [stderr]    --> src/lib.rs:507:8
[INFO] [stderr]     |
[INFO] [stderr] 507 | struct CpuSamples {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ControlSettings`
[INFO] [stderr]    --> src/lib.rs:513:8
[INFO] [stderr]     |
[INFO] [stderr] 513 | struct ControlSettings {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `mode`
[INFO] [stderr]    --> src/lib.rs:561:8
[INFO] [stderr]     |
[INFO] [stderr] 561 |     fn mode(&self) -> AllocSitesFlagsMode {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `sorting`
[INFO] [stderr]    --> src/lib.rs:570:8
[INFO] [stderr]     |
[INFO] [stderr] 570 |     fn sorting(&self) -> AllocSitesFlagsSorting {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `force_gc`
[INFO] [stderr]    --> src/lib.rs:579:8
[INFO] [stderr]     |
[INFO] [stderr] 579 |     fn force_gc(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `AllocSitesFlagsMode`
[INFO] [stderr]    --> src/lib.rs:584:6
[INFO] [stderr]     |
[INFO] [stderr] 584 | enum AllocSitesFlagsMode {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `AllocSitesFlagsSorting`
[INFO] [stderr]    --> src/lib.rs:589:6
[INFO] [stderr]     |
[INFO] [stderr] 589 | enum AllocSitesFlagsSorting {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ObjOrArrayType`
[INFO] [stderr]    --> src/lib.rs:594:6
[INFO] [stderr]     |
[INFO] [stderr] 594 | enum ObjOrArrayType {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_num`
[INFO] [stderr]    --> src/lib.rs:608:8
[INFO] [stderr]     |
[INFO] [stderr] 608 |     fn from_num(num: u8) -> ObjOrArrayType {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `AllocSite`
[INFO] [stderr]    --> src/lib.rs:625:8
[INFO] [stderr]     |
[INFO] [stderr] 625 | struct AllocSite {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 16 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.99s
[INFO] running `"docker" "inspect" "5a20b415f038e7e2e0ec9fdf4b6c60cdd0a5e47d01934cafcad1536dab70d061"`
[INFO] running `"docker" "rm" "-f" "5a20b415f038e7e2e0ec9fdf4b6c60cdd0a5e47d01934cafcad1536dab70d061"`
[INFO] [stdout] 5a20b415f038e7e2e0ec9fdf4b6c60cdd0a5e47d01934cafcad1536dab70d061
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e0d965d9b82259b89e6f2c73bd18bbe919a658caf388fec81431e84d95cd7d58
[INFO] running `"docker" "start" "-a" "e0d965d9b82259b89e6f2c73bd18bbe919a658caf388fec81431e84d95cd7d58"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling escaper v0.1.0
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr] warning: enum is never used: `ConstantPoolEntry`
[INFO] [stderr]    --> src/heap_dump.rs:529:6
[INFO] [stderr]     |
[INFO] [stderr] 529 | enum ConstantPoolEntry {}
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `UnloadClass`
[INFO] [stderr]    --> src/lib.rs:352:8
[INFO] [stderr]     |
[INFO] [stderr] 352 | struct UnloadClass {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `AllocSites`
[INFO] [stderr]    --> src/lib.rs:433:8
[INFO] [stderr]     |
[INFO] [stderr] 433 | struct AllocSites {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `StartThread`
[INFO] [stderr]    --> src/lib.rs:444:8
[INFO] [stderr]     |
[INFO] [stderr] 444 | struct StartThread {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `EndThread`
[INFO] [stderr]    --> src/lib.rs:453:8
[INFO] [stderr]     |
[INFO] [stderr] 453 | struct EndThread {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `HeapSummary`
[INFO] [stderr]    --> src/lib.rs:457:8
[INFO] [stderr]     |
[INFO] [stderr] 457 | struct HeapSummary {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CpuSamples`
[INFO] [stderr]    --> src/lib.rs:507:8
[INFO] [stderr]     |
[INFO] [stderr] 507 | struct CpuSamples {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ControlSettings`
[INFO] [stderr]    --> src/lib.rs:513:8
[INFO] [stderr]     |
[INFO] [stderr] 513 | struct ControlSettings {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `mode`
[INFO] [stderr]    --> src/lib.rs:561:8
[INFO] [stderr]     |
[INFO] [stderr] 561 |     fn mode(&self) -> AllocSitesFlagsMode {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `sorting`
[INFO] [stderr]    --> src/lib.rs:570:8
[INFO] [stderr]     |
[INFO] [stderr] 570 |     fn sorting(&self) -> AllocSitesFlagsSorting {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `force_gc`
[INFO] [stderr]    --> src/lib.rs:579:8
[INFO] [stderr]     |
[INFO] [stderr] 579 |     fn force_gc(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `AllocSitesFlagsMode`
[INFO] [stderr]    --> src/lib.rs:584:6
[INFO] [stderr]     |
[INFO] [stderr] 584 | enum AllocSitesFlagsMode {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `AllocSitesFlagsSorting`
[INFO] [stderr]    --> src/lib.rs:589:6
[INFO] [stderr]     |
[INFO] [stderr] 589 | enum AllocSitesFlagsSorting {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ObjOrArrayType`
[INFO] [stderr]    --> src/lib.rs:594:6
[INFO] [stderr]     |
[INFO] [stderr] 594 | enum ObjOrArrayType {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_num`
[INFO] [stderr]    --> src/lib.rs:608:8
[INFO] [stderr]     |
[INFO] [stderr] 608 |     fn from_num(num: u8) -> ObjOrArrayType {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `AllocSite`
[INFO] [stderr]    --> src/lib.rs:625:8
[INFO] [stderr]     |
[INFO] [stderr] 625 | struct AllocSite {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 16 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling chrono v0.4.10
[INFO] [stderr]    Compiling jvm-hprof v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: enum is never used: `ConstantPoolEntry`
[INFO] [stderr]    --> src/heap_dump.rs:529:6
[INFO] [stderr]     |
[INFO] [stderr] 529 | enum ConstantPoolEntry {}
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `UnloadClass`
[INFO] [stderr]    --> src/lib.rs:352:8
[INFO] [stderr]     |
[INFO] [stderr] 352 | struct UnloadClass {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `AllocSites`
[INFO] [stderr]    --> src/lib.rs:433:8
[INFO] [stderr]     |
[INFO] [stderr] 433 | struct AllocSites {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `StartThread`
[INFO] [stderr]    --> src/lib.rs:444:8
[INFO] [stderr]     |
[INFO] [stderr] 444 | struct StartThread {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `EndThread`
[INFO] [stderr]    --> src/lib.rs:453:8
[INFO] [stderr]     |
[INFO] [stderr] 453 | struct EndThread {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `HeapSummary`
[INFO] [stderr]    --> src/lib.rs:457:8
[INFO] [stderr]     |
[INFO] [stderr] 457 | struct HeapSummary {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CpuSamples`
[INFO] [stderr]    --> src/lib.rs:507:8
[INFO] [stderr]     |
[INFO] [stderr] 507 | struct CpuSamples {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ControlSettings`
[INFO] [stderr]    --> src/lib.rs:513:8
[INFO] [stderr]     |
[INFO] [stderr] 513 | struct ControlSettings {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `mode`
[INFO] [stderr]    --> src/lib.rs:561:8
[INFO] [stderr]     |
[INFO] [stderr] 561 |     fn mode(&self) -> AllocSitesFlagsMode {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `sorting`
[INFO] [stderr]    --> src/lib.rs:570:8
[INFO] [stderr]     |
[INFO] [stderr] 570 |     fn sorting(&self) -> AllocSitesFlagsSorting {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `force_gc`
[INFO] [stderr]    --> src/lib.rs:579:8
[INFO] [stderr]     |
[INFO] [stderr] 579 |     fn force_gc(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `AllocSitesFlagsMode`
[INFO] [stderr]    --> src/lib.rs:584:6
[INFO] [stderr]     |
[INFO] [stderr] 584 | enum AllocSitesFlagsMode {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `AllocSitesFlagsSorting`
[INFO] [stderr]    --> src/lib.rs:589:6
[INFO] [stderr]     |
[INFO] [stderr] 589 | enum AllocSitesFlagsSorting {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ObjOrArrayType`
[INFO] [stderr]    --> src/lib.rs:594:6
[INFO] [stderr]     |
[INFO] [stderr] 594 | enum ObjOrArrayType {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_num`
[INFO] [stderr]    --> src/lib.rs:608:8
[INFO] [stderr]     |
[INFO] [stderr] 608 |     fn from_num(num: u8) -> ObjOrArrayType {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `AllocSite`
[INFO] [stderr]    --> src/lib.rs:625:8
[INFO] [stderr]     |
[INFO] [stderr] 625 | struct AllocSite {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> examples/analyze_hprof/dump_objects.rs:42:38
[INFO] [stderr]    |
[INFO] [stderr] 42 | ...                   Some(c) =...
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> examples/analyze_hprof/dump_objects.rs:55:38
[INFO] [stderr]    |
[INFO] [stderr] 55 | ...                   Some(c) =...
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]    --> examples/analyze_hprof/dump_objects.rs:255:34
[INFO] [stderr]     |
[INFO] [stderr] 255 | ...                   for (index, pr) in oa.elements(hprof.header().id_size()).enumerate() {
[INFO] [stderr]     |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> examples/analyze_hprof/gc_root_paths.rs:94:38
[INFO] [stderr]    |
[INFO] [stderr] 94 | ...                   Some(c) =...
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:108:38
[INFO] [stderr]     |
[INFO] [stderr] 108 | ...                   Some(c) =...
[INFO] [stderr]     |                            ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dest_class`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:198:59
[INFO] [stderr]     |
[INFO] [stderr] 198 | ...                   .map(|dest_class| {
[INFO] [stderr]     |                             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dest_class`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mc`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:158:33
[INFO] [stderr]     |
[INFO] [stderr] 158 | ...                   let mc = classes.get(&c.obj_id())
[INFO] [stderr]     |                           ^^ help: if this is intentional, prefix it with an underscore: `_mc`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mc`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:224:33
[INFO] [stderr]     |
[INFO] [stderr] 224 | ...                   let mc = classes.get(&obj_array.array_class_obj_id())
[INFO] [stderr]     |                           ^^ help: if this is intentional, prefix it with an underscore: `_mc`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `edge`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:251:25
[INFO] [stderr]     |
[INFO] [stderr] 251 |     graph_edges.retain(|edge, count| *count >= min_edge_count);
[INFO] [stderr]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_edge`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `field_offset`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:410:17
[INFO] [stderr]     |
[INFO] [stderr] 410 |                 field_offset,
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: try ignoring the field: `field_offset: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `field_offset`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:414:17
[INFO] [stderr]     |
[INFO] [stderr] 414 |                 field_offset,
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: try ignoring the field: `field_offset: _`
[INFO] [stderr] 
[INFO] [stderr] warning: 16 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GcRootUnknown`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:375:5
[INFO] [stderr]     |
[INFO] [stderr] 375 |     GcRootUnknown,
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GcRootThreadObj`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:376:5
[INFO] [stderr]     |
[INFO] [stderr] 376 |     GcRootThreadObj,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GcRootJniGlobal`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:377:5
[INFO] [stderr]     |
[INFO] [stderr] 377 |     GcRootJniGlobal,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GcRootJniLocalRef`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:378:5
[INFO] [stderr]     |
[INFO] [stderr] 378 |     GcRootJniLocalRef,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GcRootJavaStackFrame`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:379:5
[INFO] [stderr]     |
[INFO] [stderr] 379 |     GcRootJavaStackFrame,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GcRootNativeStack`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:380:5
[INFO] [stderr]     |
[INFO] [stderr] 380 |     GcRootNativeStack,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GcRootSystemClass`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:381:5
[INFO] [stderr]     |
[INFO] [stderr] 381 |     GcRootSystemClass,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GcRootThreadBlock`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:382:5
[INFO] [stderr]     |
[INFO] [stderr] 382 |     GcRootThreadBlock,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GcRootBusyMonitor`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:383:5
[INFO] [stderr]     |
[INFO] [stderr] 383 |     GcRootBusyMonitor,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StaticField`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:384:5
[INFO] [stderr]     |
[INFO] [stderr] 384 | /     StaticField {
[INFO] [stderr] 385 | |         class_obj_id: Id,
[INFO] [stderr] 386 | |         field_offset: usize,
[INFO] [stderr] 387 | |     },
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 18.02s
[INFO] running `"docker" "inspect" "e0d965d9b82259b89e6f2c73bd18bbe919a658caf388fec81431e84d95cd7d58"`
[INFO] running `"docker" "rm" "-f" "e0d965d9b82259b89e6f2c73bd18bbe919a658caf388fec81431e84d95cd7d58"`
[INFO] [stdout] e0d965d9b82259b89e6f2c73bd18bbe919a658caf388fec81431e84d95cd7d58
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stdout] 1992be7af529db1baec4dddb113b99f2395338b7e734ac0b5661fd6d58eaa5bb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "1992be7af529db1baec4dddb113b99f2395338b7e734ac0b5661fd6d58eaa5bb"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: enum is never used: `ConstantPoolEntry`
[INFO] [stderr]    --> src/heap_dump.rs:529:6
[INFO] [stderr]     |
[INFO] [stderr] 529 | enum ConstantPoolEntry {}
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `UnloadClass`
[INFO] [stderr]    --> src/lib.rs:352:8
[INFO] [stderr]     |
[INFO] [stderr] 352 | struct UnloadClass {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `AllocSites`
[INFO] [stderr]    --> src/lib.rs:433:8
[INFO] [stderr]     |
[INFO] [stderr] 433 | struct AllocSites {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ConstantPoolEntry`
[INFO] [stderr]    --> src/heap_dump.rs:529:6
[INFO] [stderr]     |
[INFO] [stderr] 529 | enum ConstantPoolEntry {}
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `StartThread`
[INFO] [stderr]    --> src/lib.rs:444:8
[INFO] [stderr]     |
[INFO] [stderr] 444 | struct StartThread {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `EndThread`
[INFO] [stderr]    --> src/lib.rs:453:8
[INFO] [stderr]     |
[INFO] [stderr] 453 | struct EndThread {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `HeapSummary`
[INFO] [stderr]    --> src/lib.rs:457:8
[INFO] [stderr]     |
[INFO] [stderr] 457 | struct HeapSummary {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CpuSamples`
[INFO] [stderr]    --> src/lib.rs:507:8
[INFO] [stderr]     |
[INFO] [stderr] 507 | struct CpuSamples {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `UnloadClass`
[INFO] [stderr]    --> src/lib.rs:352:8
[INFO] [stderr]     |
[INFO] [stderr] 352 | struct UnloadClass {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `AllocSites`
[INFO] [stderr]    --> src/lib.rs:433:8
[INFO] [stderr]     |
[INFO] [stderr] 433 | struct AllocSites {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ControlSettings`
[INFO] [stderr]    --> src/lib.rs:513:8
[INFO] [stderr]     |
[INFO] [stderr] 513 | struct ControlSettings {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `mode`
[INFO] [stderr]    --> src/lib.rs:561:8
[INFO] [stderr]     |
[INFO] [stderr] 561 |     fn mode(&self) -> AllocSitesFlagsMode {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `sorting`
[INFO] [stderr]    --> src/lib.rs:570:8
[INFO] [stderr]     |
[INFO] [stderr] 570 |     fn sorting(&self) -> AllocSitesFlagsSorting {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `StartThread`
[INFO] [stderr]    --> src/lib.rs:444:8
[INFO] [stderr]     |
[INFO] [stderr] 444 | struct StartThread {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `EndThread`
[INFO] [stderr]    --> src/lib.rs:453:8
[INFO] [stderr]     |
[INFO] [stderr] 453 | struct EndThread {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `HeapSummary`
[INFO] [stderr]    --> src/lib.rs:457:8
[INFO] [stderr]     |
[INFO] [stderr] 457 | struct HeapSummary {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `force_gc`
[INFO] [stderr]    --> src/lib.rs:579:8
[INFO] [stderr]     |
[INFO] [stderr] 579 |     fn force_gc(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `AllocSitesFlagsMode`
[INFO] [stderr]    --> src/lib.rs:584:6
[INFO] [stderr]     |
[INFO] [stderr] 584 | enum AllocSitesFlagsMode {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CpuSamples`
[INFO] [stderr]    --> src/lib.rs:507:8
[INFO] [stderr]     |
[INFO] [stderr] 507 | struct CpuSamples {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ControlSettings`
[INFO] [stderr]    --> src/lib.rs:513:8
[INFO] [stderr]     |
[INFO] [stderr] 513 | struct ControlSettings {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `AllocSitesFlagsSorting`
[INFO] [stderr]    --> src/lib.rs:589:6
[INFO] [stderr]     |
[INFO] [stderr] 589 | enum AllocSitesFlagsSorting {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ObjOrArrayType`
[INFO] [stderr]    --> src/lib.rs:594:6
[INFO] [stderr]     |
[INFO] [stderr] 594 | enum ObjOrArrayType {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_num`
[INFO] [stderr]    --> src/lib.rs:608:8
[INFO] [stderr]     |
[INFO] [stderr] 608 |     fn from_num(num: u8) -> ObjOrArrayType {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `mode`
[INFO] [stderr]    --> src/lib.rs:561:8
[INFO] [stderr]     |
[INFO] [stderr] 561 |     fn mode(&self) -> AllocSitesFlagsMode {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `sorting`
[INFO] [stderr]    --> src/lib.rs:570:8
[INFO] [stderr]     |
[INFO] [stderr] 570 |     fn sorting(&self) -> AllocSitesFlagsSorting {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `force_gc`
[INFO] [stderr]    --> src/lib.rs:579:8
[INFO] [stderr]     |
[INFO] [stderr] 579 |     fn force_gc(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `AllocSite`
[INFO] [stderr]    --> src/lib.rs:625:8
[INFO] [stderr]     |
[INFO] [stderr] 625 | struct AllocSite {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 16 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `AllocSitesFlagsMode`
[INFO] [stderr]    --> src/lib.rs:584:6
[INFO] [stderr]     |
[INFO] [stderr] 584 | enum AllocSitesFlagsMode {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `AllocSitesFlagsSorting`
[INFO] [stderr]    --> src/lib.rs:589:6
[INFO] [stderr]     |
[INFO] [stderr] 589 | enum AllocSitesFlagsSorting {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ObjOrArrayType`
[INFO] [stderr]    --> src/lib.rs:594:6
[INFO] [stderr]     |
[INFO] [stderr] 594 | enum ObjOrArrayType {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_num`
[INFO] [stderr]    --> src/lib.rs:608:8
[INFO] [stderr]     |
[INFO] [stderr] 608 |     fn from_num(num: u8) -> ObjOrArrayType {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `AllocSite`
[INFO] [stderr]    --> src/lib.rs:625:8
[INFO] [stderr]     |
[INFO] [stderr] 625 | struct AllocSite {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 16 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> examples/analyze_hprof/dump_objects.rs:42:38
[INFO] [stderr]    |
[INFO] [stderr] 42 | ...                   Some(c) =...
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> examples/analyze_hprof/dump_objects.rs:55:38
[INFO] [stderr]    |
[INFO] [stderr] 55 | ...                   Some(c) =...
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]    --> examples/analyze_hprof/dump_objects.rs:255:34
[INFO] [stderr]     |
[INFO] [stderr] 255 | ...                   for (index, pr) in oa.elements(hprof.header().id_size()).enumerate() {
[INFO] [stderr]     |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> examples/analyze_hprof/gc_root_paths.rs:94:38
[INFO] [stderr]    |
[INFO] [stderr] 94 | ...                   Some(c) =...
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:108:38
[INFO] [stderr]     |
[INFO] [stderr] 108 | ...                   Some(c) =...
[INFO] [stderr]     |                            ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dest_class`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:198:59
[INFO] [stderr]     |
[INFO] [stderr] 198 | ...                   .map(|dest_class| {
[INFO] [stderr]     |                             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dest_class`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mc`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:158:33
[INFO] [stderr]     |
[INFO] [stderr] 158 | ...                   let mc = classes.get(&c.obj_id())
[INFO] [stderr]     |                           ^^ help: if this is intentional, prefix it with an underscore: `_mc`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mc`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:224:33
[INFO] [stderr]     |
[INFO] [stderr] 224 | ...                   let mc = classes.get(&obj_array.array_class_obj_id())
[INFO] [stderr]     |                           ^^ help: if this is intentional, prefix it with an underscore: `_mc`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `edge`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:251:25
[INFO] [stderr]     |
[INFO] [stderr] 251 |     graph_edges.retain(|edge, count| *count >= min_edge_count);
[INFO] [stderr]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_edge`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `field_offset`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:410:17
[INFO] [stderr]     |
[INFO] [stderr] 410 |                 field_offset,
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: try ignoring the field: `field_offset: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `field_offset`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:414:17
[INFO] [stderr]     |
[INFO] [stderr] 414 |                 field_offset,
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: try ignoring the field: `field_offset: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GcRootUnknown`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:375:5
[INFO] [stderr]     |
[INFO] [stderr] 375 |     GcRootUnknown,
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GcRootThreadObj`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:376:5
[INFO] [stderr]     |
[INFO] [stderr] 376 |     GcRootThreadObj,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GcRootJniGlobal`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:377:5
[INFO] [stderr]     |
[INFO] [stderr] 377 |     GcRootJniGlobal,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GcRootJniLocalRef`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:378:5
[INFO] [stderr]     |
[INFO] [stderr] 378 |     GcRootJniLocalRef,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GcRootJavaStackFrame`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:379:5
[INFO] [stderr]     |
[INFO] [stderr] 379 |     GcRootJavaStackFrame,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GcRootNativeStack`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:380:5
[INFO] [stderr]     |
[INFO] [stderr] 380 |     GcRootNativeStack,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GcRootSystemClass`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:381:5
[INFO] [stderr]     |
[INFO] [stderr] 381 |     GcRootSystemClass,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GcRootThreadBlock`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:382:5
[INFO] [stderr]     |
[INFO] [stderr] 382 |     GcRootThreadBlock,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GcRootBusyMonitor`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:383:5
[INFO] [stderr]     |
[INFO] [stderr] 383 |     GcRootBusyMonitor,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StaticField`
[INFO] [stderr]    --> examples/analyze_hprof/gc_root_paths.rs:384:5
[INFO] [stderr]     |
[INFO] [stderr] 384 | /     StaticField {
[INFO] [stderr] 385 | |         class_obj_id: Id,
[INFO] [stderr] 386 | |         field_offset: usize,
[INFO] [stderr] 387 | |     },
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/jvm_hprof-40400eb49d2a40e0
[INFO] [stderr]    Doc-tests jvm-hprof
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "1992be7af529db1baec4dddb113b99f2395338b7e734ac0b5661fd6d58eaa5bb"`
[INFO] running `"docker" "rm" "-f" "1992be7af529db1baec4dddb113b99f2395338b7e734ac0b5661fd6d58eaa5bb"`
[INFO] [stdout] 1992be7af529db1baec4dddb113b99f2395338b7e734ac0b5661fd6d58eaa5bb