[INFO] cloning repository https://github.com/jsgf/ruskcov
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jsgf/ruskcov" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsgf%2Fruskcov", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsgf%2Fruskcov'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7bcef09cd2817b759b195c155a24079783d966ef
[INFO] testing jsgf/ruskcov against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsgf%2Fruskcov" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jsgf/ruskcov on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jsgf/ruskcov
[INFO] finished tweaking git repo https://github.com/jsgf/ruskcov
[INFO] tweaked toml for git repo https://github.com/jsgf/ruskcov written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/jsgf/ruskcov already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22be35a10c7ff96853d2b2f396465c83d9e7c5cd33613b5e47f6aaa03035faa2
[INFO] running `Command { std: "docker" "start" "-a" "22be35a10c7ff96853d2b2f396465c83d9e7c5cd33613b5e47f6aaa03035faa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22be35a10c7ff96853d2b2f396465c83d9e7c5cd33613b5e47f6aaa03035faa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22be35a10c7ff96853d2b2f396465c83d9e7c5cd33613b5e47f6aaa03035faa2", kill_on_drop: false }`
[INFO] [stdout] 22be35a10c7ff96853d2b2f396465c83d9e7c5cd33613b5e47f6aaa03035faa2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 659449afd00a2b7ef41d0c11db573e398e953e1acd7d0e73b2ff81741a23de17
[INFO] running `Command { std: "docker" "start" "-a" "659449afd00a2b7ef41d0c11db573e398e953e1acd7d0e73b2ff81741a23de17", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling target-lexicon v0.9.0
[INFO] [stderr]    Compiling nix v0.16.0
[INFO] [stderr]    Compiling anyhow v1.0.25
[INFO] [stderr]    Compiling plain v0.2.3
[INFO] [stderr]    Compiling regex v1.0.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling parity-wasm v0.41.0
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling smallvec v1.0.0
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]    Compiling bincode v1.2.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling tinyset v0.3.5
[INFO] [stderr]    Compiling ruskcov-inject v0.1.0 (/opt/rustwide/workdir/inject)
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling intervaltree v0.2.4
[INFO] [stderr]    Compiling gimli v0.19.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling flate2 v1.0.13
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling findshlibs v0.6.0 (https://github.com/gimli-rs/findshlibs.git#760f122b)
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling thread_local v0.3.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling state v0.4.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling internment v0.3.10
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling scroll_derive v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]    Compiling ctor v0.1.12
[INFO] [stderr]    Compiling scroll v0.10.1
[INFO] [stderr]    Compiling goblin v0.1.2
[INFO] [stderr]    Compiling structopt v0.3.5
[INFO] [stderr]    Compiling object v0.16.0
[INFO] [stderr]    Compiling inject-types v0.1.0 (/opt/rustwide/workdir/inject-types)
[INFO] [stdout] warning: unused imports: `SIGSTOP`, `raise`
[INFO] [stdout]   --> inject/src/lib.rs:18:42
[INFO] [stdout]    |
[INFO] [stdout] 18 | use libc::{c_char, c_int, c_void, dlsym, raise, size_t, RTLD_NEXT, SIGSTOP};
[INFO] [stdout]    |                                          ^^^^^                     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CStr`, `OsStr`, `ffi::OsStrExt`, `slice`
[INFO] [stdout]   --> inject/src/lib.rs:21:11
[INFO] [stdout]    |
[INFO] [stdout] 21 |     ffi::{CStr, OsStr},
[INFO] [stdout]    |           ^^^^  ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     os::unix::{ffi::OsStrExt, net::UnixStream},
[INFO] [stdout]    |                ^^^^^^^^^^^^^
[INFO] [stdout] 25 |     path::PathBuf,
[INFO] [stdout] 26 |     ptr, slice,
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ruskcov v0.1.0 (/opt/rustwide/workdir/ruskcov)
[INFO] [stdout] warning: unused imports: `BreakpointInst`, `SetBreakpointsResp`
[INFO] [stdout]  --> ruskcov/src/main.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use inject_types::{BreakpointInst, ObjectInfo, SetBreakpointsReq, SetBreakpointsResp, SOCKET_ENV};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deref`, `Index`, `Range`, `borrow::Borrow`, `iter`, `process::CommandExt`, `self`
[INFO] [stdout]   --> ruskcov/src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     borrow::Borrow,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     io::{self, BufReader, BufWriter, Write},
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 16 |     iter,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     ops::{Deref, Index, Range},
[INFO] [stdout]    |           ^^^^^  ^^^^^  ^^^^^
[INFO] [stdout] 18 |     os::unix::{ffi::OsStrExt, net::UnixListener, process::CommandExt},
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ObjectInfo`, `SOCKET_ENV`, `SetBreakpointsReq`, `SetBreakpointsResp`
[INFO] [stdout]  --> ruskcov/src/srcloc.rs:3:36
[INFO] [stdout]   |
[INFO] [stdout] 3 | use inject_types::{BreakpointInst, ObjectInfo, SetBreakpointsReq, SetBreakpointsResp, SOCKET_ENV};
[INFO] [stdout]   |                                    ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc::c_void`
[INFO] [stdout]  --> ruskcov/src/ptrace_x86.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use libc::c_void;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `nix::sys::ptrace`
[INFO] [stdout]   --> ruskcov/src/ptrace_x86.rs:94:13
[INFO] [stdout]    |
[INFO] [stdout] 94 |         use nix::sys::ptrace;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pid`
[INFO] [stdout]    --> ruskcov/src/main.rs:337:30
[INFO] [stdout]     |
[INFO] [stdout] 337 |                     Signaled(pid, sig, coredumped) => unimplemented!("{:?}", status),
[INFO] [stdout]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_pid`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]    --> ruskcov/src/main.rs:337:35
[INFO] [stdout]     |
[INFO] [stdout] 337 |                     Signaled(pid, sig, coredumped) => unimplemented!("{:?}", status),
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `coredumped`
[INFO] [stdout]    --> ruskcov/src/main.rs:337:40
[INFO] [stdout]     |
[INFO] [stdout] 337 |                     Signaled(pid, sig, coredumped) => unimplemented!("{:?}", status),
[INFO] [stdout]     |                                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coredumped`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pid`
[INFO] [stdout]    --> ruskcov/src/main.rs:351:33
[INFO] [stdout]     |
[INFO] [stdout] 351 |                     PtraceEvent(pid, sig, event) => {
[INFO] [stdout]     |                                 ^^^ help: if this is intentional, prefix it with an underscore: `_pid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]    --> ruskcov/src/main.rs:351:38
[INFO] [stdout]     |
[INFO] [stdout] 351 |                     PtraceEvent(pid, sig, event) => {
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pid`
[INFO] [stdout]    --> ruskcov/src/main.rs:355:35
[INFO] [stdout]     |
[INFO] [stdout] 355 |                     PtraceSyscall(pid) => unimplemented!("{:?}", status),
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_pid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pid`
[INFO] [stdout]    --> ruskcov/src/main.rs:356:31
[INFO] [stdout]     |
[INFO] [stdout] 356 |                     Continued(pid) => unimplemented!("{:?}", status),
[INFO] [stdout]     |                               ^^^ help: if this is intentional, prefix it with an underscore: `_pid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]    --> ruskcov/src/main.rs:320:13
[INFO] [stdout]     |
[INFO] [stdout] 320 |         let state = state.clone();
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> ruskcov/src/ptrace_x86.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn from(v: VoidReg) -> u64 {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> ruskcov/src/main.rs:317:9
[INFO] [stdout]     |
[INFO] [stdout] 317 |     let mut state = Arc::new(Mutex::new(State::new(child)));
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bytes`
[INFO] [stdout]   --> ruskcov/src/mapped_slice.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn bytes(&self) -> &[u8] {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `subslice_from_slice`
[INFO] [stdout]   --> ruskcov/src/mapped_slice.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn subslice_from_slice(&self, slice: &[u8]) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `New`
[INFO] [stdout]   --> ruskcov/src/process.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     New,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Running`
[INFO] [stdout]   --> ruskcov/src/process.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Running,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Stopped`
[INFO] [stdout]   --> ruskcov/src/process.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     Stopped,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Exiting`
[INFO] [stdout]   --> ruskcov/src/process.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Exiting,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> ruskcov/src/process.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_thread`
[INFO] [stdout]   --> ruskcov/src/process.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn new_thread(&self, pid: Pid) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `exec`
[INFO] [stdout]   --> ruskcov/src/process.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn exec(&mut self, segments: impl IntoIterator<Item = (u64, u64)>) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_rc`
[INFO] [stdout]   --> ruskcov/src/symtab.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new_rc<'data, 'file, O: object::Object<'data, 'file>>(
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `load_section`
[INFO] [stdout]   --> ruskcov/src/symtab.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |         fn load_section<'data, 'file, O, S, Endian>(file: &'file O, endian: Endian) -> S
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_arc`
[INFO] [stdout]   --> ruskcov/src/symtab.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn new_arc<'data, 'file, O: object::Object<'data, 'file>>(
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `load_section`
[INFO] [stdout]   --> ruskcov/src/symtab.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |         fn load_section<'data, 'file, O, S, Endian>(file: &'file O, endian: Endian) -> S
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_unit`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:299:8
[INFO] [stdout]     |
[INFO] [stdout] 299 |     fn find_unit(&self, probe: u64) -> Option<usize> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_location`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:319:12
[INFO] [stdout]     |
[INFO] [stdout] 319 |     pub fn find_location(&self, probe: u64) -> Result<Option<Location<'_>>, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_frames`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:335:12
[INFO] [stdout]     |
[INFO] [stdout] 335 |     pub fn find_frames(&self, probe: u64) -> Result<FrameIter<R>, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_lines`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:360:12
[INFO] [stdout]     |
[INFO] [stdout] 360 |     pub fn parse_lines(&self) -> Result<(), Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_functions`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:369:12
[INFO] [stdout]     |
[INFO] [stdout] 369 |     pub fn parse_functions(&self) -> Result<(), Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sequences`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:379:5
[INFO] [stdout]     |
[INFO] [stdout] 379 |     sequences: Vec<LineSequence>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `end`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:384:5
[INFO] [stdout]     |
[INFO] [stdout] 384 |     end: u64,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rows`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:385:5
[INFO] [stdout]     |
[INFO] [stdout] 385 |     rows: Vec<LineRow>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `depth`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:397:5
[INFO] [stdout]     |
[INFO] [stdout] 397 |     depth: isize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `funcs`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:407:5
[INFO] [stdout]     |
[INFO] [stdout] 407 |     funcs: LazyCell<Result<IntervalTree<u64, Func<R::Offset>>, Error>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_functions`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:478:8
[INFO] [stdout]     |
[INFO] [stdout] 478 |     fn parse_functions(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_location`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:519:8
[INFO] [stdout]     |
[INFO] [stdout] 519 |     fn find_location(
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `raw_name`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:775:12
[INFO] [stdout]     |
[INFO] [stdout] 775 |     pub fn raw_name(&self) -> Result<Cow<str>, Error> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NT_PRFPREG`
[INFO] [stdout]   --> ruskcov/src/ptrace_x86.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const NT_PRFPREG: u32 = 2;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `primary`
[INFO] [stdout]   --> ruskcov/src/main.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     primary: Child,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tracees`
[INFO] [stdout]   --> ruskcov/src/main.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 80 |     tracees: HashSet<u32>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_child`
[INFO] [stdout]   --> ruskcov/src/main.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn add_child(&mut self, child: &Child) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 45 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.74s
[INFO] running `Command { std: "docker" "inspect" "659449afd00a2b7ef41d0c11db573e398e953e1acd7d0e73b2ff81741a23de17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "659449afd00a2b7ef41d0c11db573e398e953e1acd7d0e73b2ff81741a23de17", kill_on_drop: false }`
[INFO] [stdout] 659449afd00a2b7ef41d0c11db573e398e953e1acd7d0e73b2ff81741a23de17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17e11a1ff6ae12ddc2d942e39ed22ecb9871a4c179b1e2f35354422a785d5947
[INFO] running `Command { std: "docker" "start" "-a" "17e11a1ff6ae12ddc2d942e39ed22ecb9871a4c179b1e2f35354422a785d5947", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling inject-types v0.1.0 (/opt/rustwide/workdir/inject-types)
[INFO] [stderr]    Compiling ruskcov v0.1.0 (/opt/rustwide/workdir/ruskcov)
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stdout] warning: unused imports: `BreakpointInst`, `SetBreakpointsResp`
[INFO] [stdout]  --> ruskcov/src/main.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use inject_types::{BreakpointInst, ObjectInfo, SetBreakpointsReq, SetBreakpointsResp, SOCKET_ENV};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deref`, `Index`, `Range`, `borrow::Borrow`, `iter`, `process::CommandExt`, `self`
[INFO] [stdout]   --> ruskcov/src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     borrow::Borrow,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     io::{self, BufReader, BufWriter, Write},
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 16 |     iter,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     ops::{Deref, Index, Range},
[INFO] [stdout]    |           ^^^^^  ^^^^^  ^^^^^
[INFO] [stdout] 18 |     os::unix::{ffi::OsStrExt, net::UnixListener, process::CommandExt},
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ObjectInfo`, `SOCKET_ENV`, `SetBreakpointsReq`, `SetBreakpointsResp`
[INFO] [stdout]  --> ruskcov/src/srcloc.rs:3:36
[INFO] [stdout]   |
[INFO] [stdout] 3 | use inject_types::{BreakpointInst, ObjectInfo, SetBreakpointsReq, SetBreakpointsResp, SOCKET_ENV};
[INFO] [stdout]   |                                    ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc::c_void`
[INFO] [stdout]  --> ruskcov/src/ptrace_x86.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use libc::c_void;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `nix::sys::ptrace`
[INFO] [stdout]   --> ruskcov/src/ptrace_x86.rs:94:13
[INFO] [stdout]    |
[INFO] [stdout] 94 |         use nix::sys::ptrace;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rusty-fork v0.2.2
[INFO] [stdout] warning: unused variable: `pid`
[INFO] [stdout]    --> ruskcov/src/main.rs:337:30
[INFO] [stdout]     |
[INFO] [stdout] 337 |                     Signaled(pid, sig, coredumped) => unimplemented!("{:?}", status),
[INFO] [stdout]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_pid`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]    --> ruskcov/src/main.rs:337:35
[INFO] [stdout]     |
[INFO] [stdout] 337 |                     Signaled(pid, sig, coredumped) => unimplemented!("{:?}", status),
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `coredumped`
[INFO] [stdout]    --> ruskcov/src/main.rs:337:40
[INFO] [stdout]     |
[INFO] [stdout] 337 |                     Signaled(pid, sig, coredumped) => unimplemented!("{:?}", status),
[INFO] [stdout]     |                                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coredumped`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pid`
[INFO] [stdout]    --> ruskcov/src/main.rs:351:33
[INFO] [stdout]     |
[INFO] [stdout] 351 |                     PtraceEvent(pid, sig, event) => {
[INFO] [stdout]     |                                 ^^^ help: if this is intentional, prefix it with an underscore: `_pid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]    --> ruskcov/src/main.rs:351:38
[INFO] [stdout]     |
[INFO] [stdout] 351 |                     PtraceEvent(pid, sig, event) => {
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pid`
[INFO] [stdout]    --> ruskcov/src/main.rs:355:35
[INFO] [stdout]     |
[INFO] [stdout] 355 |                     PtraceSyscall(pid) => unimplemented!("{:?}", status),
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_pid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pid`
[INFO] [stdout]    --> ruskcov/src/main.rs:356:31
[INFO] [stdout]     |
[INFO] [stdout] 356 |                     Continued(pid) => unimplemented!("{:?}", status),
[INFO] [stdout]     |                               ^^^ help: if this is intentional, prefix it with an underscore: `_pid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]    --> ruskcov/src/main.rs:320:13
[INFO] [stdout]     |
[INFO] [stdout] 320 |         let state = state.clone();
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> ruskcov/src/ptrace_x86.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn from(v: VoidReg) -> u64 {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> ruskcov/src/main.rs:317:9
[INFO] [stdout]     |
[INFO] [stdout] 317 |     let mut state = Arc::new(Mutex::new(State::new(child)));
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bytes`
[INFO] [stdout]   --> ruskcov/src/mapped_slice.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn bytes(&self) -> &[u8] {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `subslice_from_slice`
[INFO] [stdout]   --> ruskcov/src/mapped_slice.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn subslice_from_slice(&self, slice: &[u8]) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `New`
[INFO] [stdout]   --> ruskcov/src/process.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     New,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Running`
[INFO] [stdout]   --> ruskcov/src/process.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Running,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Stopped`
[INFO] [stdout]   --> ruskcov/src/process.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     Stopped,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Exiting`
[INFO] [stdout]   --> ruskcov/src/process.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Exiting,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> ruskcov/src/process.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_thread`
[INFO] [stdout]   --> ruskcov/src/process.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn new_thread(&self, pid: Pid) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `exec`
[INFO] [stdout]   --> ruskcov/src/process.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn exec(&mut self, segments: impl IntoIterator<Item = (u64, u64)>) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_rc`
[INFO] [stdout]   --> ruskcov/src/symtab.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new_rc<'data, 'file, O: object::Object<'data, 'file>>(
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `load_section`
[INFO] [stdout]   --> ruskcov/src/symtab.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |         fn load_section<'data, 'file, O, S, Endian>(file: &'file O, endian: Endian) -> S
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_arc`
[INFO] [stdout]   --> ruskcov/src/symtab.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn new_arc<'data, 'file, O: object::Object<'data, 'file>>(
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `load_section`
[INFO] [stdout]   --> ruskcov/src/symtab.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |         fn load_section<'data, 'file, O, S, Endian>(file: &'file O, endian: Endian) -> S
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_unit`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:299:8
[INFO] [stdout]     |
[INFO] [stdout] 299 |     fn find_unit(&self, probe: u64) -> Option<usize> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_location`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:319:12
[INFO] [stdout]     |
[INFO] [stdout] 319 |     pub fn find_location(&self, probe: u64) -> Result<Option<Location<'_>>, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_frames`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:335:12
[INFO] [stdout]     |
[INFO] [stdout] 335 |     pub fn find_frames(&self, probe: u64) -> Result<FrameIter<R>, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_lines`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:360:12
[INFO] [stdout]     |
[INFO] [stdout] 360 |     pub fn parse_lines(&self) -> Result<(), Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_functions`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:369:12
[INFO] [stdout]     |
[INFO] [stdout] 369 |     pub fn parse_functions(&self) -> Result<(), Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sequences`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:379:5
[INFO] [stdout]     |
[INFO] [stdout] 379 |     sequences: Vec<LineSequence>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `end`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:384:5
[INFO] [stdout]     |
[INFO] [stdout] 384 |     end: u64,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rows`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:385:5
[INFO] [stdout]     |
[INFO] [stdout] 385 |     rows: Vec<LineRow>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `depth`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:397:5
[INFO] [stdout]     |
[INFO] [stdout] 397 |     depth: isize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `funcs`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:407:5
[INFO] [stdout]     |
[INFO] [stdout] 407 |     funcs: LazyCell<Result<IntervalTree<u64, Func<R::Offset>>, Error>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_functions`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:478:8
[INFO] [stdout]     |
[INFO] [stdout] 478 |     fn parse_functions(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_location`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:519:8
[INFO] [stdout]     |
[INFO] [stdout] 519 |     fn find_location(
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `raw_name`
[INFO] [stdout]    --> ruskcov/src/symtab.rs:775:12
[INFO] [stdout]     |
[INFO] [stdout] 775 |     pub fn raw_name(&self) -> Result<Cow<str>, Error> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NT_PRFPREG`
[INFO] [stdout]   --> ruskcov/src/ptrace_x86.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const NT_PRFPREG: u32 = 2;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `primary`
[INFO] [stdout]   --> ruskcov/src/main.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     primary: Child,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tracees`
[INFO] [stdout]   --> ruskcov/src/main.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 80 |     tracees: HashSet<u32>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_child`
[INFO] [stdout]   --> ruskcov/src/main.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn add_child(&mut self, child: &Child) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 45 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling proptest v0.9.4
[INFO] [stderr]    Compiling ruskcov-inject v0.1.0 (/opt/rustwide/workdir/inject)
[INFO] [stdout] warning: unused imports: `SIGSTOP`, `raise`
[INFO] [stdout]   --> inject/src/lib.rs:18:42
[INFO] [stdout]    |
[INFO] [stdout] 18 | use libc::{c_char, c_int, c_void, dlsym, raise, size_t, RTLD_NEXT, SIGSTOP};
[INFO] [stdout]    |                                          ^^^^^                     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CStr`, `OsStr`, `ffi::OsStrExt`, `slice`
[INFO] [stdout]   --> inject/src/lib.rs:21:11
[INFO] [stdout]    |
[INFO] [stdout] 21 |     ffi::{CStr, OsStr},
[INFO] [stdout]    |           ^^^^  ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     os::unix::{ffi::OsStrExt, net::UnixStream},
[INFO] [stdout]    |                ^^^^^^^^^^^^^
[INFO] [stdout] 25 |     path::PathBuf,
[INFO] [stdout] 26 |     ptr, slice,
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 17.43s
[INFO] running `Command { std: "docker" "inspect" "17e11a1ff6ae12ddc2d942e39ed22ecb9871a4c179b1e2f35354422a785d5947", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17e11a1ff6ae12ddc2d942e39ed22ecb9871a4c179b1e2f35354422a785d5947", kill_on_drop: false }`
[INFO] [stdout] 17e11a1ff6ae12ddc2d942e39ed22ecb9871a4c179b1e2f35354422a785d5947
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 43ccde5b63807c933d30746bb0bd65877492fb8fd04edaf20addc3e4da6d741f
[INFO] running `Command { std: "docker" "start" "-a" "43ccde5b63807c933d30746bb0bd65877492fb8fd04edaf20addc3e4da6d741f", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `BreakpointInst`, `SetBreakpointsResp`
[INFO] [stderr]  --> ruskcov/src/main.rs:3:20
[INFO] [stderr]   |
[INFO] [stderr] 3 | use inject_types::{BreakpointInst, ObjectInfo, SetBreakpointsReq, SetBreakpointsResp, SOCKET_ENV};
[INFO] [stderr]   |                    ^^^^^^^^^^^^^^                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Deref`, `Index`, `Range`, `borrow::Borrow`, `iter`, `process::CommandExt`, `self`
[INFO] [stderr]   --> ruskcov/src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     borrow::Borrow,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 15 |     io::{self, BufReader, BufWriter, Write},
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] 16 |     iter,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 17 |     ops::{Deref, Index, Range},
[INFO] [stderr]    |           ^^^^^  ^^^^^  ^^^^^
[INFO] [stderr] 18 |     os::unix::{ffi::OsStrExt, net::UnixListener, process::CommandExt},
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ObjectInfo`, `SOCKET_ENV`, `SetBreakpointsReq`, `SetBreakpointsResp`
[INFO] [stderr]  --> ruskcov/src/srcloc.rs:3:36
[INFO] [stderr]   |
[INFO] [stderr] 3 | use inject_types::{BreakpointInst, ObjectInfo, SetBreakpointsReq, SetBreakpointsResp, SOCKET_ENV};
[INFO] [stderr]   |                                    ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `libc::c_void`
[INFO] [stderr]  --> ruskcov/src/ptrace_x86.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use libc::c_void;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nix::sys::ptrace`
[INFO] [stderr]   --> ruskcov/src/ptrace_x86.rs:94:13
[INFO] [stderr]    |
[INFO] [stderr] 94 |         use nix::sys::ptrace;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pid`
[INFO] [stderr]    --> ruskcov/src/main.rs:337:30
[INFO] [stderr]     |
[INFO] [stderr] 337 |                     Signaled(pid, sig, coredumped) => unimplemented!("{:?}", status),
[INFO] [stderr]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_pid`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]    --> ruskcov/src/main.rs:337:35
[INFO] [stderr]     |
[INFO] [stderr] 337 |                     Signaled(pid, sig, coredumped) => unimplemented!("{:?}", status),
[INFO] [stderr]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `coredumped`
[INFO] [stderr]    --> ruskcov/src/main.rs:337:40
[INFO] [stderr]     |
[INFO] [stderr] 337 |                     Signaled(pid, sig, coredumped) => unimplemented!("{:?}", status),
[INFO] [stderr]     |                                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coredumped`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pid`
[INFO] [stderr]    --> ruskcov/src/main.rs:351:33
[INFO] [stderr]     |
[INFO] [stderr] 351 |                     PtraceEvent(pid, sig, event) => {
[INFO] [stderr]     |                                 ^^^ help: if this is intentional, prefix it with an underscore: `_pid`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]    --> ruskcov/src/main.rs:351:38
[INFO] [stderr]     |
[INFO] [stderr] 351 |                     PtraceEvent(pid, sig, event) => {
[INFO] [stderr]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pid`
[INFO] [stderr]    --> ruskcov/src/main.rs:355:35
[INFO] [stderr]     |
[INFO] [stderr] 355 |                     PtraceSyscall(pid) => unimplemented!("{:?}", status),
[INFO] [stderr]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_pid`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pid`
[INFO] [stderr]    --> ruskcov/src/main.rs:356:31
[INFO] [stderr]     |
[INFO] [stderr] 356 |                     Continued(pid) => unimplemented!("{:?}", status),
[INFO] [stderr]     |                               ^^^ help: if this is intentional, prefix it with an underscore: `_pid`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `state`
[INFO] [stderr]    --> ruskcov/src/main.rs:320:13
[INFO] [stderr]     |
[INFO] [stderr] 320 |         let state = state.clone();
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> ruskcov/src/ptrace_x86.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn from(v: VoidReg) -> u64 {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> ruskcov/src/main.rs:317:9
[INFO] [stderr]     |
[INFO] [stderr] 317 |     let mut state = Arc::new(Mutex::new(State::new(child)));
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `bytes`
[INFO] [stderr]   --> ruskcov/src/mapped_slice.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn bytes(&self) -> &[u8] {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `subslice_from_slice`
[INFO] [stderr]   --> ruskcov/src/mapped_slice.rs:67:12
[INFO] [stderr]    |
[INFO] [stderr] 67 |     pub fn subslice_from_slice(&self, slice: &[u8]) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `New`
[INFO] [stderr]   --> ruskcov/src/process.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     New,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Running`
[INFO] [stderr]   --> ruskcov/src/process.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     Running,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Stopped`
[INFO] [stderr]   --> ruskcov/src/process.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     Stopped,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Exiting`
[INFO] [stderr]   --> ruskcov/src/process.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     Exiting,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> ruskcov/src/process.rs:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn new(
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_thread`
[INFO] [stderr]   --> ruskcov/src/process.rs:65:12
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn new_thread(&self, pid: Pid) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `exec`
[INFO] [stderr]   --> ruskcov/src/process.rs:73:12
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn exec(&mut self, segments: impl IntoIterator<Item = (u64, u64)>) {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_rc`
[INFO] [stderr]   --> ruskcov/src/symtab.rs:37:12
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn new_rc<'data, 'file, O: object::Object<'data, 'file>>(
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load_section`
[INFO] [stderr]   --> ruskcov/src/symtab.rs:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 |         fn load_section<'data, 'file, O, S, Endian>(file: &'file O, endian: Endian) -> S
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_arc`
[INFO] [stderr]   --> ruskcov/src/symtab.rs:86:12
[INFO] [stderr]    |
[INFO] [stderr] 86 |     pub fn new_arc<'data, 'file, O: object::Object<'data, 'file>>(
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load_section`
[INFO] [stderr]   --> ruskcov/src/symtab.rs:95:12
[INFO] [stderr]    |
[INFO] [stderr] 95 |         fn load_section<'data, 'file, O, S, Endian>(file: &'file O, endian: Endian) -> S
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `find_unit`
[INFO] [stderr]    --> ruskcov/src/symtab.rs:299:8
[INFO] [stderr]     |
[INFO] [stderr] 299 |     fn find_unit(&self, probe: u64) -> Option<usize> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `find_location`
[INFO] [stderr]    --> ruskcov/src/symtab.rs:319:12
[INFO] [stderr]     |
[INFO] [stderr] 319 |     pub fn find_location(&self, probe: u64) -> Result<Option<Location<'_>>, Error> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `find_frames`
[INFO] [stderr]    --> ruskcov/src/symtab.rs:335:12
[INFO] [stderr]     |
[INFO] [stderr] 335 |     pub fn find_frames(&self, probe: u64) -> Result<FrameIter<R>, Error> {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse_lines`
[INFO] [stderr]    --> ruskcov/src/symtab.rs:360:12
[INFO] [stderr]     |
[INFO] [stderr] 360 |     pub fn parse_lines(&self) -> Result<(), Error> {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse_functions`
[INFO] [stderr]    --> ruskcov/src/symtab.rs:369:12
[INFO] [stderr]     |
[INFO] [stderr] 369 |     pub fn parse_functions(&self) -> Result<(), Error> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sequences`
[INFO] [stderr]    --> ruskcov/src/symtab.rs:379:5
[INFO] [stderr]     |
[INFO] [stderr] 379 |     sequences: Vec<LineSequence>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `end`
[INFO] [stderr]    --> ruskcov/src/symtab.rs:384:5
[INFO] [stderr]     |
[INFO] [stderr] 384 |     end: u64,
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `rows`
[INFO] [stderr]    --> ruskcov/src/symtab.rs:385:5
[INFO] [stderr]     |
[INFO] [stderr] 385 |     rows: Vec<LineRow>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `depth`
[INFO] [stderr]    --> ruskcov/src/symtab.rs:397:5
[INFO] [stderr]     |
[INFO] [stderr] 397 |     depth: isize,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `funcs`
[INFO] [stderr]    --> ruskcov/src/symtab.rs:407:5
[INFO] [stderr]     |
[INFO] [stderr] 407 |     funcs: LazyCell<Result<IntervalTree<u64, Func<R::Offset>>, Error>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse_functions`
[INFO] [stderr]    --> ruskcov/src/symtab.rs:478:8
[INFO] [stderr]     |
[INFO] [stderr] 478 |     fn parse_functions(
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `find_location`
[INFO] [stderr]    --> ruskcov/src/symtab.rs:519:8
[INFO] [stderr]     |
[INFO] [stderr] 519 |     fn find_location(
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `raw_name`
[INFO] [stderr]    --> ruskcov/src/symtab.rs:775:12
[INFO] [stderr]     |
[INFO] [stderr] 775 |     pub fn raw_name(&self) -> Result<Cow<str>, Error> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `NT_PRFPREG`
[INFO] [stderr]   --> ruskcov/src/ptrace_x86.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const NT_PRFPREG: u32 = 2;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `primary`
[INFO] [stderr]   --> ruskcov/src/main.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     primary: Child,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `tracees`
[INFO] [stderr]   --> ruskcov/src/main.rs:80:5
[INFO] [stderr]    |
[INFO] [stderr] 80 |     tracees: HashSet<u32>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add_child`
[INFO] [stderr]   --> ruskcov/src/main.rs:91:8
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn add_child(&mut self, child: &Child) {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 45 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SIGSTOP`, `raise`
[INFO] [stderr]   --> inject/src/lib.rs:18:42
[INFO] [stderr]    |
[INFO] [stderr] 18 | use libc::{c_char, c_int, c_void, dlsym, raise, size_t, RTLD_NEXT, SIGSTOP};
[INFO] [stderr]    |                                          ^^^^^                     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `CStr`, `OsStr`, `ffi::OsStrExt`, `slice`
[INFO] [stderr]   --> inject/src/lib.rs:21:11
[INFO] [stderr]    |
[INFO] [stderr] 21 |     ffi::{CStr, OsStr},
[INFO] [stderr]    |           ^^^^  ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 24 |     os::unix::{ffi::OsStrExt, net::UnixStream},
[INFO] [stderr]    |                ^^^^^^^^^^^^^
[INFO] [stderr] 25 |     path::PathBuf,
[INFO] [stderr] 26 |     ptr, slice,
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/inject_types-8b49b99d0fc4f8e9)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ruskcov-4609b70751904dcd)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ruskcov_inject-76cd80ce11110a02)
[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; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '-p ruskcov-inject --lib'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/ruskcov_inject-76cd80ce11110a02` (signal: 5, SIGTRAP: trace/breakpoint trap)
[INFO] running `Command { std: "docker" "inspect" "43ccde5b63807c933d30746bb0bd65877492fb8fd04edaf20addc3e4da6d741f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43ccde5b63807c933d30746bb0bd65877492fb8fd04edaf20addc3e4da6d741f", kill_on_drop: false }`
[INFO] [stdout] 43ccde5b63807c933d30746bb0bd65877492fb8fd04edaf20addc3e4da6d741f
