[INFO] cloning repository https://github.com/gs0510/rustrace [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gs0510/rustrace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgs0510%2Frustrace", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgs0510%2Frustrace'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 60fe42dccf7c3a32a8d041499e2f8cd5b4cae27b [INFO] checking gs0510/rustrace against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgs0510%2Frustrace" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/gs0510/rustrace on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/gs0510/rustrace [INFO] finished tweaking git repo https://github.com/gs0510/rustrace [INFO] tweaked toml for git repo https://github.com/gs0510/rustrace written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/gs0510/rustrace already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] fe69e3aabd27f6912b66acff089a417020c0ed5254c1780d989ab693493fdb14 [INFO] running `Command { std: "docker" "start" "-a" "fe69e3aabd27f6912b66acff089a417020c0ed5254c1780d989ab693493fdb14", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fe69e3aabd27f6912b66acff089a417020c0ed5254c1780d989ab693493fdb14", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fe69e3aabd27f6912b66acff089a417020c0ed5254c1780d989ab693493fdb14", kill_on_drop: false }` [INFO] [stdout] fe69e3aabd27f6912b66acff089a417020c0ed5254c1780d989ab693493fdb14 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cdf04a817365c47d873856d24ffc91f037dd5d3fd369a8f39ea5de31232c4a8d [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" "cdf04a817365c47d873856d24ffc91f037dd5d3fd369a8f39ea5de31232c4a8d", kill_on_drop: false }` [INFO] [stderr] Compiling nix v0.13.0 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking strace v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/main.rs:13:33 [INFO] [stdout] | [INFO] [stdout] 13 | fn traceme() -> std::io::Result<(())> { [INFO] [stdout] | ^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused doc comment [INFO] [stdout] --> src/main.rs:62:5 [INFO] [stdout] | [INFO] [stdout] 62 | / /// Whether we are exiting (rather than entering) a syscall. [INFO] [stdout] 63 | | /// ptrace is stopped both times when exiting and entering a syscall, we only [INFO] [stdout] 64 | | /// need to stop once. [INFO] [stdout] | |____________________________^ [INFO] [stdout] 65 | let mut exit = true; [INFO] [stdout] | -------------------- rustdoc does not generate documentation for statements [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused doc comment [INFO] [stdout] --> src/main.rs:77:13 [INFO] [stdout] | [INFO] [stdout] 77 | / /// syscall number is stored inside orig_rax register. Transalte from number [INFO] [stdout] 78 | | /// to syscall name using an array that stores all syscalls. [INFO] [stdout] | |__________________________________________________________________________^ [INFO] [stdout] 79 | let mut syscallName = system_call_names::SYSTEM_CALL_NAMES[(regs.orig_rax) as usize]; [INFO] [stdout] | ------------------------------------------------------------------------------------- rustdoc does not generate documentation for statements [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/main.rs:23:42 [INFO] [stdout] | [INFO] [stdout] 23 | let mut regs: user_regs_struct = mem::uninitialized(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `nix::sys::ptrace::ptrace`: usages of `ptrace()` should be replaced with the specialized helper functions instead [INFO] [stdout] --> src/main.rs:88:13 [INFO] [stdout] | [INFO] [stdout] 88 | ptrace( [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::os::unix::process::CommandExt::before_exec`: should be unsafe, use `pre_exec` instead [INFO] [stdout] --> src/main.rs:47:22 [INFO] [stdout] | [INFO] [stdout] 47 | let output = cmd.before_exec(traceme); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/main.rs:13:33 [INFO] [stdout] | [INFO] [stdout] 13 | fn traceme() -> std::io::Result<(())> { [INFO] [stdout] | ^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused doc comment [INFO] [stdout] --> src/main.rs:62:5 [INFO] [stdout] | [INFO] [stdout] 62 | / /// Whether we are exiting (rather than entering) a syscall. [INFO] [stdout] 63 | | /// ptrace is stopped both times when exiting and entering a syscall, we only [INFO] [stdout] 64 | | /// need to stop once. [INFO] [stdout] | |____________________________^ [INFO] [stdout] 65 | let mut exit = true; [INFO] [stdout] | -------------------- rustdoc does not generate documentation for statements [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused doc comment [INFO] [stdout] --> src/main.rs:77:13 [INFO] [stdout] | [INFO] [stdout] 77 | / /// syscall number is stored inside orig_rax register. Transalte from number [INFO] [stdout] 78 | | /// to syscall name using an array that stores all syscalls. [INFO] [stdout] | |__________________________________________________________________________^ [INFO] [stdout] 79 | let mut syscallName = system_call_names::SYSTEM_CALL_NAMES[(regs.orig_rax) as usize]; [INFO] [stdout] | ------------------------------------------------------------------------------------- rustdoc does not generate documentation for statements [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `output` [INFO] [stdout] --> src/main.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let output = cmd.before_exec(traceme); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/main.rs:23:42 [INFO] [stdout] | [INFO] [stdout] 23 | let mut regs: user_regs_struct = mem::uninitialized(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `nix::sys::ptrace::ptrace`: usages of `ptrace()` should be replaced with the specialized helper functions instead [INFO] [stdout] --> src/main.rs:88:13 [INFO] [stdout] | [INFO] [stdout] 88 | ptrace( [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 49 | let mut child = cmd.spawn().expect("child process failed"); [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:79:17 [INFO] [stdout] | [INFO] [stdout] 79 | let mut syscallName = system_call_names::SYSTEM_CALL_NAMES[(regs.orig_rax) as usize]; [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::os::unix::process::CommandExt::before_exec`: should be unsafe, use `pre_exec` instead [INFO] [stdout] --> src/main.rs:47:22 [INFO] [stdout] | [INFO] [stdout] 47 | let output = cmd.before_exec(traceme); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `output` [INFO] [stdout] --> src/main.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let output = cmd.before_exec(traceme); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 49 | let mut child = cmd.spawn().expect("child process failed"); [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:79:17 [INFO] [stdout] | [INFO] [stdout] 79 | let mut syscallName = system_call_names::SYSTEM_CALL_NAMES[(regs.orig_rax) as usize]; [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:60:5 [INFO] [stdout] | [INFO] [stdout] 60 | waitpid(pid, None); [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: variable `syscallName` should have a snake case name [INFO] [stdout] --> src/main.rs:79:21 [INFO] [stdout] | [INFO] [stdout] 79 | let mut syscallName = system_call_names::SYSTEM_CALL_NAMES[(regs.orig_rax) as usize]; [INFO] [stdout] | ^^^^^^^^^^^ help: convert the identifier to snake case: `syscall_name` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:88:13 [INFO] [stdout] | [INFO] [stdout] 88 | / ptrace( [INFO] [stdout] 89 | | Request::PTRACE_SYSCALL, [INFO] [stdout] 90 | | pid, [INFO] [stdout] 91 | | ptr::null_mut(), [INFO] [stdout] 92 | | ptr::null_mut(), [INFO] [stdout] 93 | | ); [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/main.rs:96:9 [INFO] [stdout] | [INFO] [stdout] 96 | waitpid(pid, None); [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: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:60:5 [INFO] [stdout] | [INFO] [stdout] 60 | waitpid(pid, None); [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: variable `syscallName` should have a snake case name [INFO] [stdout] --> src/main.rs:79:21 [INFO] [stdout] | [INFO] [stdout] 79 | let mut syscallName = system_call_names::SYSTEM_CALL_NAMES[(regs.orig_rax) as usize]; [INFO] [stdout] | ^^^^^^^^^^^ help: convert the identifier to snake case: `syscall_name` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:88:13 [INFO] [stdout] | [INFO] [stdout] 88 | / ptrace( [INFO] [stdout] 89 | | Request::PTRACE_SYSCALL, [INFO] [stdout] 90 | | pid, [INFO] [stdout] 91 | | ptr::null_mut(), [INFO] [stdout] 92 | | ptr::null_mut(), [INFO] [stdout] 93 | | ); [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/main.rs:96:9 [INFO] [stdout] | [INFO] [stdout] 96 | waitpid(pid, None); [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: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.07s [INFO] running `Command { std: "docker" "inspect" "cdf04a817365c47d873856d24ffc91f037dd5d3fd369a8f39ea5de31232c4a8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cdf04a817365c47d873856d24ffc91f037dd5d3fd369a8f39ea5de31232c4a8d", kill_on_drop: false }` [INFO] [stdout] cdf04a817365c47d873856d24ffc91f037dd5d3fd369a8f39ea5de31232c4a8d