[INFO] fetching crate rbspy 0.2.1... [INFO] checking rbspy-0.2.1 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] extracting crate rbspy 0.2.1 into /workspace/builds/worker-9/source [INFO] validating manifest of crates.io crate rbspy 0.2.1 on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate rbspy 0.2.1 [INFO] finished tweaking crates.io crate rbspy 0.2.1 [INFO] tweaked toml for crates.io crate rbspy 0.2.1 written to /workspace/builds/worker-9/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=forbid" "-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" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] e3fbb005520bf7e7b1071c587ba5f3afd997daefea6ead194dfb067cb32d3c67 [INFO] running `"docker" "start" "-a" "e3fbb005520bf7e7b1071c587ba5f3afd997daefea6ead194dfb067cb32d3c67"` [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling syn v1.0.18 [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Checking winapi v0.2.8 [INFO] [stderr] Compiling failure_derive v0.1.7 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling nix v0.17.0 [INFO] [stderr] Checking regex-syntax v0.3.9 [INFO] [stderr] Checking utf8-ranges v0.1.3 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking rbspy-ruby-structs v0.1.0 [INFO] [stderr] Compiling backtrace-sys v0.1.37 [INFO] [stderr] Compiling miniz-sys v0.1.12 [INFO] [stderr] Checking elf v0.0.10 [INFO] [stderr] Checking crc32fast v1.2.0 [INFO] [stderr] Checking serde v1.0.106 [INFO] [stderr] Checking log v0.4.8 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking thread-id v2.0.0 [INFO] [stderr] Checking memchr v0.1.11 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking read-process-memory v0.1.2 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking term_size v0.3.1 [INFO] [stderr] Checking flate2 v1.0.14 [INFO] [stderr] Checking thread_local v0.2.7 [INFO] [stderr] Checking backtrace v0.3.46 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking flate2 v0.2.20 [INFO] [stderr] Checking aho-corasick v0.5.3 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking regex v0.1.80 [INFO] [stderr] Checking chrono v0.4.11 [INFO] [stderr] Checking nix v0.10.0 [INFO] [stderr] Checking tempdir v0.3.7 [INFO] [stderr] Checking env_logger v0.3.5 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Checking serde_json v1.0.52 [INFO] [stderr] Checking failure v0.1.7 [INFO] [stderr] Checking rbspy-testdata v0.1.2 [INFO] [stderr] Checking ctrlc v3.1.4 [INFO] [stderr] Checking rbspy v0.2.1 (/opt/rustwide/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/core/initialize.rs:51:13 [INFO] [stderr] | [INFO] [stderr] 51 | Box) -> Result>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, &Process) -> Result` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/core/initialize.rs:204:10 [INFO] [stderr] | [INFO] [stderr] 204 | ) -> Box) -> bool> [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize, T, &Vec) -> bool` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/core/initialize.rs:253:10 [INFO] [stderr] | [INFO] [stderr] 253 | ) -> Box) -> Result> [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, &Process) -> Result` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/core/address_finder.rs:158:30 [INFO] [stderr] | [INFO] [stderr] 158 | is_maybe_thread: Box) -> bool>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize, ProcessHandle, &Vec) -> bool` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/core/address_finder.rs:228:30 [INFO] [stderr] | [INFO] [stderr] 228 | is_maybe_thread: Box) -> bool>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize, ProcessHandle, &Vec) -> bool` [INFO] [stderr] [INFO] [stderr] warning: unnecessary braces around method argument [INFO] [stderr] --> src/core/address_finder.rs:258:23 [INFO] [stderr] | [INFO] [stderr] 258 | .position({ |(i, &x)| is_maybe_thread(x, (i as usize) * (std::mem::size_of::() as usize) + read_addr, source, &proginfo.all_maps) }) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_braces)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary braces around method argument [INFO] [stderr] --> src/core/proc_maps.rs:24:21 [INFO] [stderr] | [INFO] [stderr] 24 | maps.iter().any({ |map| map.contains_addr(addr) }) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ui/callgrind.rs:254:33 [INFO] [stderr] | [INFO] [stderr] 254 | pub fn write(&self, w: &mut io::Write) -> io::Result<()> { [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn io::Write` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ui/summary.rs:76:33 [INFO] [stderr] | [INFO] [stderr] 76 | pub fn write(&self, w: &mut io::Write) -> io::Result<()> { [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn io::Write` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ui/summary.rs:84:36 [INFO] [stderr] | [INFO] [stderr] 84 | fn write_counts(&self, w: &mut io::Write, top: Option, truncate: Option) -> io::Result<()> { [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn io::Write` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/storage/mod.rs:100:25 [INFO] [stderr] | [INFO] [stderr] 100 | fn read_version(r: &mut Read) -> Result { [INFO] [stderr] | ^^^^ help: use `dyn`: `dyn Read` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:218:31 [INFO] [stderr] | [INFO] [stderr] 218 | fn outputter(self) -> Box { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ui::output::Outputter` [INFO] [stderr] [INFO] [stderr] warning: the item `rand` is imported redundantly [INFO] [stderr] --> src/main.rs:540:16 [INFO] [stderr] | [INFO] [stderr] 25 | extern crate rand; [INFO] [stderr] | ------------------ the item `rand` is already imported here [INFO] [stderr] ... [INFO] [stderr] 540 | use rand::{self, Rng}; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/core/initialize.rs:51:13 [INFO] [stderr] | [INFO] [stderr] 51 | Box) -> Result>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, &Process) -> Result` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/core/initialize.rs:204:10 [INFO] [stderr] | [INFO] [stderr] 204 | ) -> Box) -> bool> [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize, T, &Vec) -> bool` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/core/initialize.rs:253:10 [INFO] [stderr] | [INFO] [stderr] 253 | ) -> Box) -> Result> [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, &Process) -> Result` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/core/address_finder.rs:158:30 [INFO] [stderr] | [INFO] [stderr] 158 | is_maybe_thread: Box) -> bool>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize, ProcessHandle, &Vec) -> bool` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/core/address_finder.rs:228:30 [INFO] [stderr] | [INFO] [stderr] 228 | is_maybe_thread: Box) -> bool>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize, ProcessHandle, &Vec) -> bool` [INFO] [stderr] [INFO] [stderr] warning: unnecessary braces around method argument [INFO] [stderr] --> src/core/address_finder.rs:258:23 [INFO] [stderr] | [INFO] [stderr] 258 | .position({ |(i, &x)| is_maybe_thread(x, (i as usize) * (std::mem::size_of::() as usize) + read_addr, source, &proginfo.all_maps) }) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_braces)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary braces around method argument [INFO] [stderr] --> src/core/proc_maps.rs:24:21 [INFO] [stderr] | [INFO] [stderr] 24 | maps.iter().any({ |map| map.contains_addr(addr) }) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ui/callgrind.rs:254:33 [INFO] [stderr] | [INFO] [stderr] 254 | pub fn write(&self, w: &mut io::Write) -> io::Result<()> { [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn io::Write` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ui/summary.rs:76:33 [INFO] [stderr] | [INFO] [stderr] 76 | pub fn write(&self, w: &mut io::Write) -> io::Result<()> { [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn io::Write` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ui/summary.rs:84:36 [INFO] [stderr] | [INFO] [stderr] 84 | fn write_counts(&self, w: &mut io::Write, top: Option, truncate: Option) -> io::Result<()> { [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn io::Write` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/storage/mod.rs:100:25 [INFO] [stderr] | [INFO] [stderr] 100 | fn read_version(r: &mut Read) -> Result { [INFO] [stderr] | ^^^^ help: use `dyn`: `dyn Read` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:218:31 [INFO] [stderr] | [INFO] [stderr] 218 | fn outputter(self) -> Box { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ui::output::Outputter` [INFO] [stderr] [INFO] [stderr] warning: the item `rand` is imported redundantly [INFO] [stderr] --> src/main.rs:540:16 [INFO] [stderr] | [INFO] [stderr] 25 | extern crate rand; [INFO] [stderr] | ------------------ the item `rand` is already imported here [INFO] [stderr] ... [INFO] [stderr] 540 | use rand::{self, Rng}; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'failure::Error::causes': please use the 'iter_chain()' method instead [INFO] [stderr] --> src/main.rs:198:24 [INFO] [stderr] | [INFO] [stderr] 198 | for c in x.causes() { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'failure::Error::causes': please use the 'iter_chain()' method instead [INFO] [stderr] --> src/main.rs:198:24 [INFO] [stderr] | [INFO] [stderr] 198 | for c in x.causes() { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'failure::Fail::root_cause': please use the 'find_root_cause()' method instead [INFO] [stderr] --> src/core/initialize.rs:88:27 [INFO] [stderr] | [INFO] [stderr] 88 | match err.root_cause().downcast_ref::() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'failure::Fail::root_cause': please use the 'find_root_cause()' method instead [INFO] [stderr] --> src/core/initialize.rs:88:27 [INFO] [stderr] | [INFO] [stderr] 88 | match err.root_cause().downcast_ref::() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'failure::Fail::root_cause': please use the 'find_root_cause()' method instead [INFO] [stderr] --> src/core/initialize.rs:100:27 [INFO] [stderr] | [INFO] [stderr] 100 | match err.root_cause().downcast_ref::() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'failure::Fail::root_cause': please use the 'find_root_cause()' method instead [INFO] [stderr] --> src/core/initialize.rs:100:27 [INFO] [stderr] | [INFO] [stderr] 100 | match err.root_cause().downcast_ref::() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'failure::Error::root_cause': please use the 'find_root_cause()' method instead [INFO] [stderr] --> src/core/initialize.rs:133:10 [INFO] [stderr] | [INFO] [stderr] 133 | .root_cause() [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'failure::Error::root_cause': please use the 'find_root_cause()' method instead [INFO] [stderr] --> src/core/initialize.rs:147:10 [INFO] [stderr] | [INFO] [stderr] 147 | .root_cause() [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `MacPermissionDenied` [INFO] [stderr] --> src/core/address_finder.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | MacPermissionDenied(pid_t), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/ui/flamegraph.rs:71:9 [INFO] [stderr] | [INFO] [stderr] 71 | stats.record(&vec![f(1)]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/ui/flamegraph.rs:72:9 [INFO] [stderr] | [INFO] [stderr] 72 | stats.record(&vec![f(2), f(1)]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/ui/flamegraph.rs:73:9 [INFO] [stderr] | [INFO] [stderr] 73 | stats.record(&vec![f(2), f(1)]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/ui/flamegraph.rs:74:9 [INFO] [stderr] | [INFO] [stderr] 74 | stats.record(&vec![f(2), f(3), f(1)]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/ui/flamegraph.rs:75:9 [INFO] [stderr] | [INFO] [stderr] 75 | stats.record(&vec![f(2), f(3), f(1)]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/ui/flamegraph.rs:76:9 [INFO] [stderr] | [INFO] [stderr] 76 | stats.record(&vec![f(2), f(3), f(1)]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 25 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `MacPermissionDenied` [INFO] [stderr] --> src/core/address_finder.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | MacPermissionDenied(pid_t), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 17 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 26s [INFO] running `"docker" "inspect" "e3fbb005520bf7e7b1071c587ba5f3afd997daefea6ead194dfb067cb32d3c67"` [INFO] running `"docker" "rm" "-f" "e3fbb005520bf7e7b1071c587ba5f3afd997daefea6ead194dfb067cb32d3c67"` [INFO] [stdout] e3fbb005520bf7e7b1071c587ba5f3afd997daefea6ead194dfb067cb32d3c67