[INFO] cloning repository https://github.com/wmzhere/cscan
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wmzhere/cscan" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwmzhere%2Fcscan", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwmzhere%2Fcscan'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9217b2d391f11aff672a41329db9f15329b03242
[INFO] checking wmzhere/cscan against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwmzhere%2Fcscan" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wmzhere/cscan on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wmzhere/cscan
[INFO] finished tweaking git repo https://github.com/wmzhere/cscan
[INFO] tweaked toml for git repo https://github.com/wmzhere/cscan written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/wmzhere/cscan already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc2b2aac45ef158bd3a55cd82d712f712639e83e8de274705c98bdf055453e76
[INFO] running `Command { std: "docker" "start" "-a" "bc2b2aac45ef158bd3a55cd82d712f712639e83e8de274705c98bdf055453e76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc2b2aac45ef158bd3a55cd82d712f712639e83e8de274705c98bdf055453e76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc2b2aac45ef158bd3a55cd82d712f712639e83e8de274705c98bdf055453e76", kill_on_drop: false }`
[INFO] [stdout] bc2b2aac45ef158bd3a55cd82d712f712639e83e8de274705c98bdf055453e76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63630295ed05f07a0e5af31aaaf61516c529b1089f398e72f1e541263ee76278
[INFO] running `Command { std: "docker" "start" "-a" "63630295ed05f07a0e5af31aaaf61516c529b1089f398e72f1e541263ee76278", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling cc v1.0.62
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking field-offset v0.1.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking libflate v0.1.27
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling capstone-sys v0.10.0 (/opt/rustwide/workdir/deps/capstone-rs/capstone-sys)
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking backtrace v0.3.54
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking procfs v0.5.4
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling scroll_derive v0.10.4
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking scroll v0.10.2
[INFO] [stderr]     Checking dfuzz-os v0.1.0 (/opt/rustwide/workdir/deps/dfuzz-os)
[INFO] [stderr]     Checking goblin v0.2.3
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> deps/dfuzz-os/src/process.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         unsafe {
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> deps/dfuzz-os/src/process.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |         if !unsafe { libc::WIFSTOPPED(status) } {
[INFO] [stdout]     |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> deps/dfuzz-os/src/process.rs:129:22
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let signal = unsafe { libc::WSTOPSIG(status) }; // Bits 8-15
[INFO] [stdout]     |                      ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> deps/dfuzz-os/src/process.rs:222:12
[INFO] [stdout]     |
[INFO] [stdout] 222 |         if unsafe { libc::WIFCONTINUED(status) } {
[INFO] [stdout]     |            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking structopt v0.3.20
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking capstone v0.6.0 (/opt/rustwide/workdir/deps/capstone-rs/capstone-rs)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> deps/capstone-rs/capstone-rs/src/arch/arm.rs:85:10
[INFO] [stdout]    |
[INFO] [stdout] 85 |         };
[INFO] [stdout]    |          ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> deps/capstone-rs/capstone-rs/src/arch/arm64.rs:222:10
[INFO] [stdout]     |
[INFO] [stdout] 222 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking cfifuzz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `offset_to_vma`
[INFO] [stdout]   --> src/binary.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn offset_to_vma(&self, offset: u64) -> u64 {
[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: `vma_to_offset`
[INFO] [stdout]   --> src/binary.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn vma_to_offset(&self, vma: u64) -> u64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `single_step`
[INFO] [stdout]   --> src/debugger.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn single_step(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run_until`
[INFO] [stdout]   --> src/debugger.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn run_until(&mut self, addrs: &[u64]) -> AMD64RegisterSet {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_u32`
[INFO] [stdout]    --> src/debugger.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn read_u32(&self, addr: u64) -> u32 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ranges`
[INFO] [stdout]   --> src/range_set.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn ranges(&self) -> &[Range] {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `contains`
[INFO] [stdout]   --> src/range_set.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn contains(&self, v: u64) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `offset_to_vma`
[INFO] [stdout]   --> src/binary.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn offset_to_vma(&self, offset: u64) -> u64 {
[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: `vma_to_offset`
[INFO] [stdout]   --> src/binary.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn vma_to_offset(&self, vma: u64) -> u64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `single_step`
[INFO] [stdout]   --> src/debugger.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn single_step(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run_until`
[INFO] [stdout]   --> src/debugger.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn run_until(&mut self, addrs: &[u64]) -> AMD64RegisterSet {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_u32`
[INFO] [stdout]    --> src/debugger.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn read_u32(&self, addr: u64) -> u32 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ranges`
[INFO] [stdout]   --> src/range_set.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn ranges(&self) -> &[Range] {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `contains`
[INFO] [stdout]   --> src/range_set.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn contains(&self, v: u64) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.46s
[INFO] running `Command { std: "docker" "inspect" "63630295ed05f07a0e5af31aaaf61516c529b1089f398e72f1e541263ee76278", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63630295ed05f07a0e5af31aaaf61516c529b1089f398e72f1e541263ee76278", kill_on_drop: false }`
[INFO] [stdout] 63630295ed05f07a0e5af31aaaf61516c529b1089f398e72f1e541263ee76278