[INFO] fetching crate rbspy 0.2.1...
[INFO] checking rbspy-0.2.1 against beta for pr-78714
[INFO] extracting crate rbspy 0.2.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rbspy 0.2.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4a9cc2246d4a482e3e9f69e17cc722e86e5a10b6f68a9979203fe8391fb808d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f4a9cc2246d4a482e3e9f69e17cc722e86e5a10b6f68a9979203fe8391fb808d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4a9cc2246d4a482e3e9f69e17cc722e86e5a10b6f68a9979203fe8391fb808d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4a9cc2246d4a482e3e9f69e17cc722e86e5a10b6f68a9979203fe8391fb808d", kill_on_drop: false }`
[INFO] [stdout] f4a9cc2246d4a482e3e9f69e17cc722e86e5a10b6f68a9979203fe8391fb808d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63a146180681a5af5db61d7bd9ff7e04342dc7957a6f897e60ab10c9c00adc31
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "63a146180681a5af5db61d7bd9ff7e04342dc7957a6f897e60ab10c9c00adc31", kill_on_drop: false }`
[INFO] [stderr]     Checking rbspy-ruby-structs v0.1.0
[INFO] [stderr]     Checking elf v0.0.10
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking backtrace v0.3.54
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking miniz-sys v0.1.12
[INFO] [stderr]     Checking read-process-memory v0.1.2
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking ctrlc v3.1.7
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking nix v0.10.0
[INFO] [stderr]     Checking rbspy-testdata v0.1.2
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking rbspy v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core/initialize.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         Box<Fn(usize, &Process<T>) -> Result<StackTrace, MemoryCopyError>>,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, &Process<T>) -> Result<StackTrace, MemoryCopyError>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/core/initialize.rs:204:10
[INFO] [stdout]     |
[INFO] [stdout] 204 | ) -> Box<Fn(usize, usize, T, &Vec<MapRange>) -> bool>
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize, T, &Vec<MapRange>) -> bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/core/initialize.rs:253:10
[INFO] [stdout]     |
[INFO] [stdout] 253 | ) -> Box<Fn(usize, &Process<T>) -> Result<StackTrace, copy::MemoryCopyError>>
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, &Process<T>) -> Result<StackTrace, copy::MemoryCopyError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/core/address_finder.rs:158:30
[INFO] [stdout]     |
[INFO] [stdout] 158 |         is_maybe_thread: Box<Fn(usize, usize, ProcessHandle, &Vec<MapRange>) -> bool>,
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize, ProcessHandle, &Vec<MapRange>) -> bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/core/address_finder.rs:228:30
[INFO] [stdout]     |
[INFO] [stdout] 228 |         is_maybe_thread: Box<Fn(usize, usize, ProcessHandle, &Vec<MapRange>) -> bool>,
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize, ProcessHandle, &Vec<MapRange>) -> bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]    --> src/core/address_finder.rs:258:23
[INFO] [stdout]     |
[INFO] [stdout] 258 | ...on({ |(i, &x)| is_maybe_thread(x, (i as usize) * (std::mem::size_of::<usize>() as usize) + read_addr, source, &proginfo.all_maps) })
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/core/proc_maps.rs:24:21
[INFO] [stdout]    |
[INFO] [stdout] 24 |     maps.iter().any({ |map| map.contains_addr(addr) })
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ui/callgrind.rs:254:33
[INFO] [stdout]     |
[INFO] [stdout] 254 |     pub fn write(&self, w: &mut io::Write) -> io::Result<()> {
[INFO] [stdout]     |                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ui/summary.rs:76:33
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn write(&self, w: &mut io::Write) -> io::Result<()> {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ui/summary.rs:84:36
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn write_counts(&self, w: &mut io::Write, top: Option<usize>, truncate: Option<usize>) -> io::Result<()> {
[INFO] [stdout]    |                                    ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/storage/mod.rs:100:25
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn read_version(r: &mut Read) -> Result<Version, StorageError> {
[INFO] [stdout]     |                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:218:31
[INFO] [stdout]     |
[INFO] [stdout] 218 |     fn outputter(self) -> Box<ui::output::Outputter> {
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ui::output::Outputter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]    --> src/main.rs:540:16
[INFO] [stdout]     |
[INFO] [stdout] 25  | extern crate rand;
[INFO] [stdout]     | ------------------ the item `rand` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 540 |     use rand::{self, Rng};
[INFO] [stdout]     |                ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core/initialize.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         Box<Fn(usize, &Process<T>) -> Result<StackTrace, MemoryCopyError>>,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, &Process<T>) -> Result<StackTrace, MemoryCopyError>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/core/initialize.rs:204:10
[INFO] [stdout]     |
[INFO] [stdout] 204 | ) -> Box<Fn(usize, usize, T, &Vec<MapRange>) -> bool>
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize, T, &Vec<MapRange>) -> bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/core/initialize.rs:253:10
[INFO] [stdout]     |
[INFO] [stdout] 253 | ) -> Box<Fn(usize, &Process<T>) -> Result<StackTrace, copy::MemoryCopyError>>
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, &Process<T>) -> Result<StackTrace, copy::MemoryCopyError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/core/address_finder.rs:158:30
[INFO] [stdout]     |
[INFO] [stdout] 158 |         is_maybe_thread: Box<Fn(usize, usize, ProcessHandle, &Vec<MapRange>) -> bool>,
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize, ProcessHandle, &Vec<MapRange>) -> bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/core/address_finder.rs:228:30
[INFO] [stdout]     |
[INFO] [stdout] 228 |         is_maybe_thread: Box<Fn(usize, usize, ProcessHandle, &Vec<MapRange>) -> bool>,
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize, ProcessHandle, &Vec<MapRange>) -> bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]    --> src/core/address_finder.rs:258:23
[INFO] [stdout]     |
[INFO] [stdout] 258 | ...on({ |(i, &x)| is_maybe_thread(x, (i as usize) * (std::mem::size_of::<usize>() as usize) + read_addr, source, &proginfo.all_maps) })
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/core/proc_maps.rs:24:21
[INFO] [stdout]    |
[INFO] [stdout] 24 |     maps.iter().any({ |map| map.contains_addr(addr) })
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ui/callgrind.rs:254:33
[INFO] [stdout]     |
[INFO] [stdout] 254 |     pub fn write(&self, w: &mut io::Write) -> io::Result<()> {
[INFO] [stdout]     |                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ui/summary.rs:76:33
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn write(&self, w: &mut io::Write) -> io::Result<()> {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ui/summary.rs:84:36
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn write_counts(&self, w: &mut io::Write, top: Option<usize>, truncate: Option<usize>) -> io::Result<()> {
[INFO] [stdout]    |                                    ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/storage/mod.rs:100:25
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn read_version(r: &mut Read) -> Result<Version, StorageError> {
[INFO] [stdout]     |                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:218:31
[INFO] [stdout]     |
[INFO] [stdout] 218 |     fn outputter(self) -> Box<ui::output::Outputter> {
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ui::output::Outputter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]    --> src/main.rs:540:16
[INFO] [stdout]     |
[INFO] [stdout] 25  | extern crate rand;
[INFO] [stdout]     | ------------------ the item `rand` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 540 |     use rand::{self, Rng};
[INFO] [stdout]     |                ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::Error::causes`: please use the 'iter_chain()' method instead
[INFO] [stdout]    --> src/main.rs:198:24
[INFO] [stdout]     |
[INFO] [stdout] 198 |             for c in x.causes() {
[INFO] [stdout]     |                        ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::Error::causes`: please use the 'iter_chain()' method instead
[INFO] [stdout]    --> src/main.rs:198:24
[INFO] [stdout]     |
[INFO] [stdout] 198 |             for c in x.causes() {
[INFO] [stdout]     |                        ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::Fail::root_cause`: please use the 'find_root_cause()' method instead
[INFO] [stdout]   --> src/core/initialize.rs:88:27
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 match err.root_cause().downcast_ref::<AddressFinderError>() {
[INFO] [stdout]    |                           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::Fail::root_cause`: please use the 'find_root_cause()' method instead
[INFO] [stdout]    --> src/core/initialize.rs:100:27
[INFO] [stdout]     |
[INFO] [stdout] 100 |                 match err.root_cause().downcast_ref::<MemoryCopyError>() {
[INFO] [stdout]     |                           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::Error::root_cause`: please use the 'find_root_cause()' method instead
[INFO] [stdout]    --> src/core/initialize.rs:133:10
[INFO] [stdout]     |
[INFO] [stdout] 133 |         .root_cause()
[INFO] [stdout]     |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::Error::root_cause`: please use the 'find_root_cause()' method instead
[INFO] [stdout]    --> src/core/initialize.rs:147:10
[INFO] [stdout]     |
[INFO] [stdout] 147 |         .root_cause()
[INFO] [stdout]     |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::Fail::root_cause`: please use the 'find_root_cause()' method instead
[INFO] [stdout]   --> src/core/initialize.rs:88:27
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 match err.root_cause().downcast_ref::<AddressFinderError>() {
[INFO] [stdout]    |                           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::Fail::root_cause`: please use the 'find_root_cause()' method instead
[INFO] [stdout]    --> src/core/initialize.rs:100:27
[INFO] [stdout]     |
[INFO] [stdout] 100 |                 match err.root_cause().downcast_ref::<MemoryCopyError>() {
[INFO] [stdout]     |                           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MacPermissionDenied`
[INFO] [stdout]   --> src/core/address_finder.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     MacPermissionDenied(pid_t),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/ui/flamegraph.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |         stats.record(&vec![f(1)]);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/ui/flamegraph.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         stats.record(&vec![f(2), f(1)]);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/ui/flamegraph.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |         stats.record(&vec![f(2), f(1)]);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/ui/flamegraph.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         stats.record(&vec![f(2), f(3), f(1)]);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/ui/flamegraph.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |         stats.record(&vec![f(2), f(3), f(1)]);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/ui/flamegraph.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |         stats.record(&vec![f(2), f(3), f(1)]);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MacPermissionDenied`
[INFO] [stdout]   --> src/core/address_finder.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     MacPermissionDenied(pid_t),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.05s
[INFO] running `Command { std: "docker" "inspect" "63a146180681a5af5db61d7bd9ff7e04342dc7957a6f897e60ab10c9c00adc31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63a146180681a5af5db61d7bd9ff7e04342dc7957a6f897e60ab10c9c00adc31", kill_on_drop: false }`
[INFO] [stdout] 63a146180681a5af5db61d7bd9ff7e04342dc7957a6f897e60ab10c9c00adc31