[INFO] cloning repository https://github.com/th0razine/symfind-macho
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/th0razine/symfind-macho" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fth0razine%2Fsymfind-macho", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fth0razine%2Fsymfind-macho'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d8ed6e1ab02abfb72278786d39e22eb32d4ae2bd
[INFO] checking th0razine/symfind-macho against try#5de9e0e6cf775e94e0de2003f35e183f3f77bfe8 for pr-143808
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fth0razine%2Fsymfind-macho" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/th0razine/symfind-macho
[INFO] finished tweaking git repo https://github.com/th0razine/symfind-macho
[INFO] tweaked toml for git repo https://github.com/th0razine/symfind-macho written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/th0razine/symfind-macho on toolchain 5de9e0e6cf775e94e0de2003f35e183f3f77bfe8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/th0razine/symfind-macho already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: profile.release.std
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking th0razine/symfind-macho against try#5de9e0e6cf775e94e0de2003f35e183f3f77bfe8 for pr-143808
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fth0razine%2Fsymfind-macho" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/th0razine/symfind-macho
[INFO] finished tweaking git repo https://github.com/th0razine/symfind-macho
[INFO] tweaked toml for git repo https://github.com/th0razine/symfind-macho written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/th0razine/symfind-macho on toolchain 5de9e0e6cf775e94e0de2003f35e183f3f77bfe8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/th0razine/symfind-macho already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: profile.release.std
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking th0razine/symfind-macho against try#5de9e0e6cf775e94e0de2003f35e183f3f77bfe8 for pr-143808
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fth0razine%2Fsymfind-macho" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/th0razine/symfind-macho
[INFO] finished tweaking git repo https://github.com/th0razine/symfind-macho
[INFO] tweaked toml for git repo https://github.com/th0razine/symfind-macho written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/th0razine/symfind-macho on toolchain 5de9e0e6cf775e94e0de2003f35e183f3f77bfe8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/th0razine/symfind-macho already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: profile.release.std
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cfg-if v0.1.7
[INFO] [stderr]   Downloaded log v0.4.6
[INFO] [stderr]   Downloaded lazy_static v1.3.0
[INFO] [stderr]   Downloaded failure_derive v0.1.5
[INFO] [stderr]   Downloaded uuid v0.7.4
[INFO] [stderr]   Downloaded redox_syscall v0.1.54
[INFO] [stderr]   Downloaded rustc-demangle v0.1.14
[INFO] [stderr]   Downloaded time v0.1.42
[INFO] [stderr]   Downloaded bitflags v1.0.5
[INFO] [stderr]   Downloaded quote v0.6.12
[INFO] [stderr]   Downloaded synstructure v0.10.1
[INFO] [stderr]   Downloaded byteorder v1.3.1
[INFO] [stderr]   Downloaded autocfg v0.1.2
[INFO] [stderr]   Downloaded proc-macro2 v0.4.29
[INFO] [stderr]   Downloaded cc v1.0.36
[INFO] [stderr]   Downloaded backtrace v0.3.15
[INFO] [stderr]   Downloaded failure v0.1.5
[INFO] [stderr]   Downloaded syn v0.15.33
[INFO] [stderr]   Downloaded libc v0.2.54
[INFO] [stderr]   Downloaded backtrace-sys v0.1.28
[INFO] [stderr]   Downloaded winapi v0.3.7
[INFO] [stderr]   Downloaded mach_object v0.1.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df346898955ac98c17870d5479129e16eaabf5e7e2240877b4d3eaf6d9e9b57d
[INFO] running `Command { std: "docker" "start" "-a" "df346898955ac98c17870d5479129e16eaabf5e7e2240877b4d3eaf6d9e9b57d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df346898955ac98c17870d5479129e16eaabf5e7e2240877b4d3eaf6d9e9b57d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df346898955ac98c17870d5479129e16eaabf5e7e2240877b4d3eaf6d9e9b57d", kill_on_drop: false }`
[INFO] [stdout] df346898955ac98c17870d5479129e16eaabf5e7e2240877b4d3eaf6d9e9b57d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80c3831339398bec393b5c6e83f9512a06bc13b098c209929048625be06d58fd
[INFO] running `Command { std: "docker" "start" "-a" "80c3831339398bec393b5c6e83f9512a06bc13b098c209929048625be06d58fd", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: profile.release.std
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling libc v0.2.54
[INFO] [stderr]    Compiling cc v1.0.36
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]    Compiling bitflags v1.0.5
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking rustc-demangle v0.1.14
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking mach_object v0.1.13
[INFO] [stderr]     Checking symfind v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `SymbolIter` and `Symbol`
[INFO] [stdout]  --> src/main.rs:3:69
[INFO] [stdout]   |
[INFO] [stdout] 3 | use mach_object::{OFile, CPU_TYPE_X86_64, MachCommand, LoadCommand, SymbolIter, Symbol};
[INFO] [stdout]   |                                                                     ^^^^^^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SymbolIter` and `Symbol`
[INFO] [stdout]  --> src/main.rs:3:69
[INFO] [stdout]   |
[INFO] [stdout] 3 | use mach_object::{OFile, CPU_TYPE_X86_64, MachCommand, LoadCommand, SymbolIter, Symbol};
[INFO] [stdout]   |                                                                     ^^^^^^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `symcur`
[INFO] [stdout]   --> src/main.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut symcur = Cursor::new(&buf[..size]);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_symcur`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmdsize`
[INFO] [stdout]   --> src/main.rs:17:35
[INFO] [stdout]    |
[INFO] [stdout] 17 |         for &MachCommand(ref cmd, cmdsize) in commands {
[INFO] [stdout]    |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cmdsize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmdsize`
[INFO] [stdout]   --> src/main.rs:29:35
[INFO] [stdout]    |
[INFO] [stdout] 29 |         for &MachCommand(ref cmd, cmdsize) in commands {
[INFO] [stdout]    |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cmdsize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `symcur`
[INFO] [stdout]   --> src/main.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut symcur = Cursor::new(&buf[..size]);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_symcur`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmdsize`
[INFO] [stdout]   --> src/main.rs:17:35
[INFO] [stdout]    |
[INFO] [stdout] 17 |         for &MachCommand(ref cmd, cmdsize) in commands {
[INFO] [stdout]    |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cmdsize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmdsize`
[INFO] [stdout]   --> src/main.rs:29:35
[INFO] [stdout]    |
[INFO] [stdout] 29 |         for &MachCommand(ref cmd, cmdsize) in commands {
[INFO] [stdout]    |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cmdsize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut symcur = Cursor::new(&buf[..size]);
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut symcur = Cursor::new(&buf[..size]);
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.65s
[INFO] running `Command { std: "docker" "inspect" "80c3831339398bec393b5c6e83f9512a06bc13b098c209929048625be06d58fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80c3831339398bec393b5c6e83f9512a06bc13b098c209929048625be06d58fd", kill_on_drop: false }`
[INFO] [stdout] 80c3831339398bec393b5c6e83f9512a06bc13b098c209929048625be06d58fd