[INFO] cloning repository https://github.com/19h/mtrac
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/19h/mtrac" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F19h%2Fmtrac", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F19h%2Fmtrac'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 62535019b454e5a1395a78e4e50546795e0ea0e2
[INFO] checking 19h/mtrac against try#0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef for pr-147859
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F19h%2Fmtrac" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/19h/mtrac
[INFO] finished tweaking git repo https://github.com/19h/mtrac
[INFO] tweaked toml for git repo https://github.com/19h/mtrac written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/19h/mtrac on toolchain 0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/19h/mtrac 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" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd206f1f25292541a3578ec4cdef7a45ef83109c51ae0f28188172061651054b
[INFO] running `Command { std: "docker" "start" "-a" "dd206f1f25292541a3578ec4cdef7a45ef83109c51ae0f28188172061651054b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd206f1f25292541a3578ec4cdef7a45ef83109c51ae0f28188172061651054b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd206f1f25292541a3578ec4cdef7a45ef83109c51ae0f28188172061651054b", kill_on_drop: false }`
[INFO] [stdout] dd206f1f25292541a3578ec4cdef7a45ef83109c51ae0f28188172061651054b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b2dbf4df75ffb998842f07d9fde2a89042c14a5b9729ebab9faa762cb7c69ca
[INFO] running `Command { std: "docker" "start" "-a" "0b2dbf4df75ffb998842f07d9fde2a89042c14a5b9729ebab9faa762cb7c69ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]     Checking anstyle-query v1.1.5
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]     Checking anstyle v1.0.13
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.2
[INFO] [stderr]    Compiling cpp_demangle v0.4.5
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]     Checking clap_lex v0.7.6
[INFO] [stderr]     Checking bitflags v2.10.0
[INFO] [stderr]     Checking memchr v2.7.6
[INFO] [stderr]     Checking rustc-demangle v0.1.26
[INFO] [stderr]     Checking iced-x86 v1.21.0
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking anstream v0.6.21
[INFO] [stderr]     Checking clap_builder v4.5.53
[INFO] [stderr]     Checking flate2 v1.1.5
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling derive_more v0.99.20
[INFO] [stderr]    Compiling clap_derive v4.5.49
[INFO] [stderr]     Checking ruzstd v0.5.0
[INFO] [stderr]     Checking clap v4.5.53
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking instruction_tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/tracer.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |             execv(&c_path, &c_args).expect("execv failed");
[INFO] [stdout]    |             ---------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 86 |         }
[INFO] [stdout]    |         ^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout] note: this expression has type `Infallible`, which is uninhabited
[INFO] [stdout]   --> src/tracer.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |             execv(&c_path, &c_args).expect("execv failed");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fn_id` is never read
[INFO] [stdout]    --> src/analysis.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 119 | struct StackFrame {
[INFO] [stdout]     |        ---------- field in this struct
[INFO] [stdout] 120 |     saved_rsp: u64,
[INFO] [stdout] 121 |     fn_id: Option<u32>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StackFrame` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `module` is never read
[INFO] [stdout]    --> src/analysis.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 131 | struct ResolvedFunction {
[INFO] [stdout]     |        ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 135 |     module: String,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]   --> src/elf.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct SectionInfo {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub kind: SectionKind,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SectionInfo` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/tracer.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |             execv(&c_path, &c_args).expect("execv failed");
[INFO] [stdout]    |             ---------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 86 |         }
[INFO] [stdout]    |         ^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout] note: this expression has type `Infallible`, which is uninhabited
[INFO] [stdout]   --> src/tracer.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |             execv(&c_path, &c_args).expect("execv failed");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fn_id` is never read
[INFO] [stdout]    --> src/analysis.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 119 | struct StackFrame {
[INFO] [stdout]     |        ---------- field in this struct
[INFO] [stdout] 120 |     saved_rsp: u64,
[INFO] [stdout] 121 |     fn_id: Option<u32>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StackFrame` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `module` is never read
[INFO] [stdout]    --> src/analysis.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 131 | struct ResolvedFunction {
[INFO] [stdout]     |        ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 135 |     module: String,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]   --> src/elf.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct SectionInfo {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub kind: SectionKind,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SectionInfo` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.27s
[INFO] running `Command { std: "docker" "inspect" "0b2dbf4df75ffb998842f07d9fde2a89042c14a5b9729ebab9faa762cb7c69ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b2dbf4df75ffb998842f07d9fde2a89042c14a5b9729ebab9faa762cb7c69ca", kill_on_drop: false }`
[INFO] [stdout] 0b2dbf4df75ffb998842f07d9fde2a89042c14a5b9729ebab9faa762cb7c69ca
